Academic literature on the topic 'Artère brachiale'
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Journal articles on the topic "Artère brachiale"
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Ahmadpour, Shahriar, and Khadijeh Foghi. "Bilateral Unusual Course of the Median Nerve, Variation in Branching Pattern of the Brachial and Superficial Ulnar Arteries: A Rare Case Report of Multiple Neuroarterial Variation." Journal of Morphological Sciences 36, no. 03 (2019): 202–6. http://dx.doi.org/10.1055/s-0039-1691755.
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Introduction Bilateral unusual course of the median nerve accompanied with variations of the brachial artery branching pattern are uncommon. Materials and Methods During the routine educational dissection of an upper limb, an interesting neurovascular variation was found in a 45-year-old male cadaver. Results We found a bilateral unusual and variant course of the median nerve in the arm region. The right median nerve, after formation, descended from the medial to the brachial artery, crossed the brachial artery anteriorly from medial to lateral, then inferiorly and lied medially to the distal third of the brachial artery, while the left median nerve ran medial to the brachial artery, passing anteriorly from medial to lateral, and, at the distal end of the arm, it buried itself in the brachialis muscle. Another set of findings were absence of the superior and inferior ulnar collateral arteries, superficial ulnar artery in the forearm and common interosseus artery originated from radial artery. Conclusion These types of compound neurovascular variations are of great importance in orthopedic, vascular, reconstructive surgeries and even in routine nursing care.
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Kachlik, David, Marek Konarik, Miroslav Urban, and Vaclav Baca. "Accessory brachial artery: a case report, embryological background and clinical relevance." Asian Biomedicine 5, no. 1 (2011): 151–55. http://dx.doi.org/10.5372/1905-7415.0501.019.
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Abstract Background: The accessory brachial artery (arteria brachialis accessoria) is a rare upper limb vascular abnormality, reported in less than one percent of cases. It is the artery originating from the axillary artery or the brachial artery, which rejoins the brachial artery further along its distal course within the arm or cubital fossa. Its detailed knowledge is necessary in transradial transulnar catheterization during coronary procedures, mainly due to its narrow caliber, which is responsible for the failure of the intervention performance. Objectives: Present a case of uncharacteristic branching pattern of the accessory brachial artery. Method: The case was observed during a routine dissection in the left axilla of a female cadaver at the Department of Anatomy at the Third Faculty of Medicine, Charles University in Prague. Results: The infrapectoral part of the axillary artery gave rise to a branch that descended distally along the medial side of the arm. This artery accompanied firstly the ulnar nerve, then it diverted laterally towards the median nerve and coursed hidden behind it to re-enter the brachial artery within the distal part of the arm, next to the biceps brachii muscle. The calibre of the accessory brachial artery was two mm only. Conclusion: The accessory brachial artery is a rare variant of the upper limb vascular system and its prevailingly narrow lumen can cause a failure of the transradial/transulnar catheterization intervention.
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Honma, Satoru, Katsushi Kawai, Masahiro Koizumi, and Kodo Kodama. "The superficial brachial artery passing superficially to the pectoral ansa, the highest superficial brachial artery (Arteria brachialis superficialis suprema)." Anatomical Science International 86, no. 2 (2010): 108–15. http://dx.doi.org/10.1007/s12565-010-0094-2.
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George, Jessy Rose, Joseph Francis, Jeffy Elizabeth Samuel, and Thomas Francis. "MORPHOLOGY AND VARIATIONS OF BRACHIAL ARTERY IN CADAVERS." International Journal of Anatomy and Research 7, no. 2.3 (2019): 6680–84. http://dx.doi.org/10.16965/ijar.2019.202.
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S., Monica Diana, Ramesh Kumar Subramanian, and Senthil Kumar S. "A rare variation of formation of median nerve - a case report." National Journal of Clinical Anatomy 04, no. 02 (2015): 110–13. http://dx.doi.org/10.1055/s-0039-3401556.
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AbstractMany variations have been reported regarding formation of the brachial plexus and its branches. Here the authors report a rare variation pertaining to lateral cord of median nerve. During routine dissection, at Sri Ramachandra Medical College and Hospital, Chennai, in the department of anatomy, in a male cadaver in the right upper limb, the authors found an additional lateral root from lateral cord joining the medial root to form the median nerve. Musculocutaneous nerve did not pierce the coracobrachialis muscle instead it gave a direct branch to the muscle. Nerve supply to biceps and brachialis were of normal pattern. The musculo cutaneous nerve communicated with the median nerve before supplying other muscles. Median nerve was medial throughout the arm but about 7 cm above the level of medial epicondyle it crossed the brachial artery from medial to lateral. Morphometry of the nerves were studied by measurements. Knowledge of these variations and measurements will be helpful during surgical and anaesthetic procedures in the axilla.
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Thijssen, Dick H. J., Nicola Rowley, Jaume Padilla, et al. "Relationship between upper and lower limb conduit artery vasodilator function in humans." Journal of Applied Physiology 111, no. 1 (2011): 244–50. http://dx.doi.org/10.1152/japplphysiol.00290.2011.
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Brachial artery flow-mediated dilation (FMD) is a strong predictor of future cardiovascular disease and is believed to represent a “barometer” of systemic endothelial health. Although a recent study [Padilla et al. Exp Biol Med (Maywood) 235: 1287–1291, 2010] in pigs confirmed a strong correlation between brachial and femoral artery endothelial function, it is unclear to what extent brachial artery FMD represents a systemic index of endothelial function in humans. We conducted a retrospective analysis of data from our laboratory to evaluate relationships between the upper (i.e., brachial artery) vs. lower limb (superficial femoral n = 75; popliteal artery n = 32) endothelium-dependent FMD and endothelium-independent glyceryl trinitrate (GTN)-mediated dilation in young, healthy individuals. We also examined the relationship between FMD assessed in both brachial arteries ( n = 42). There was no correlation between brachial and superficial femoral artery FMD ( r2 = 0.008; P = 0.46) or between brachial and popliteal artery FMD ( r2 = 0.003; P = 0.78). However, a correlation was observed in FMD between both brachial arteries ( r2 = 0.34; P < 0.001). Brachial and superficial femoral artery GTN were modestly correlated ( r2 = 0.13; P = 0.007), but brachial and popliteal artery GTN responses were not ( r2 = 0.08; P = 0.11). Collectively, these data indicate that conduit artery vasodilator function in the upper limbs (of healthy humans) is not predictive of that in the lower limbs, whereas measurement of FMD in one arm appears to be predictive of FMD in the other. These data do not support the hypothesis that brachial artery FMD in healthy humans represents a systemic index of endothelial function.
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Lalit, Monika, and Sanjay Piplani. "A cadaveric study of brachial artery and its variations with its ontogenic basis: An Anatomical Perspective." International Journal of Anatomy and Research 9, no. 9 (2021): 7844–50. http://dx.doi.org/10.16965/ijar.2020.233.
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Introduction: Conventional knowledge of the brachial artery, the principal artery of the upper limb & its branches has played a major role in vascular surgeries. Literature along with various cadaveric & clinical studies suggest that brachial artery vary widely in origin, course and branching pattern. The great variability of this arterial pattern may be attributed to the failure of regression of some paths of embryonic arterial trunks. Anatomical knowledge of this principal artery and its variations has many clinical implications especially in surgeries related to orthopedic and vascular re-constructive procedures. MATERIALS AND METHODS: The present study was conducted on 56 upper limbs of different age group and sex (19 Male and 9 Female) The brachial arteries were identified and branching pattern and relations of the brachial artery with brachial plexus in arm was observed and presence or absence of variations were documented. Results: Out of 56 upper limbs studies, 53 (94.64%) limbs showed normal morphological pattern of brachial artery, 3 (5.35%) limbs showed superficial brachial artery, 1 limb (1.78%) showed tortuous and SBA with trifurcation into radial artery, ulnar artery and common interosseous artery in the cubital fossa. Conclusion: The study of Brachial artery and variation in its course and branching pattern is clinically important for surgeons, ortho-paedicians operating on the supracondylar fracture of humerus and radiologists performing angiographic studies on the upper limb. KEY WORDS: Common Interosseous Artery, Median Nerve, Superficial Brachial Artery, Trifurcation, Ulnar Artery.
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N.P, Singh, and Vikram Singh Yadav. "VARIATION IN BIFURCATION OF RIGHT BRACHIAL ARTERY: CASE REPORT." International Journal of Anatomy and Research 5, no. 3.1 (2017): 4090–91. http://dx.doi.org/10.16965/ijar.2017.257.
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Al Talalwah, W., D. Getachew, and R. Soames. "Morphological feature of brachial artery and its clinical significance." Journal of Morphological Sciences 32, no. 03 (2015): 129–34. http://dx.doi.org/10.4322/jms.079014.
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Abstract Introduction: The present study is to provide comprehensive data concerning the morphology of brachial artery which has a clinical significance for clinicians, orthopedics, vascular surgeons and anatomists. Materials and Methods: Routine dissections of the right and left upper limb of 34 adult cadavers (20 male and 14 female: mean age 78.9 year) were undertaken. It investigates the characteristics of the brachial artery such as the internal diameter, external diameter, wall thickness and distance of bifurcation of brachial artery. Results: The mean of the external and internal diameters of the brachial artery from proximal to distal ranged from 6.87-5.35 mm respectively. The bifurcation of the brachial artery from the head of radius into its terminal branch radial and ulnar artery ranged from 13.49-13.79 mm, while the distance of bifurcation of common interosseous from origin of the ulnar artery ranged from 33.11-33.45 mm. The angle of bifurcation ofthe radial and ulnar arteries from the brachial artery ranged from 5.79-7.33° and 18.640-19.36° respectively. Due to variability of the brachial artery in the upper limb, the surgical and invasive procedures are performed in the region such as artiicial arterial-venous fistula become more difficult and may result in iatrogenic injury. Conclusion: Therefore, it is a clinical significant for surgeons to known the variable morphology and course of brachial artery to minimize surgical complication prior to operation.
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Gravlee, G. P., S. D. Brauer, M. F. O'Rourke, and A. P. Avolio. "A Comparison of Brachial, Femoral, and Aortic Intra-Arterial Pressures before and after Cardiopulmonary Bypass." Anaesthesia and Intensive Care 17, no. 3 (1989): 305–11. http://dx.doi.org/10.1177/0310057x8901700311.
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Following recent evidence that brachial and femoral artery pressures are more reliable than radial artery pressures after cardiopulmonary bypass, thirty-one adults had simultaneous pre and post-bypass measurements of brachial, femoral, and ascending aortic pressures. Two minutes after cardiopulmonary bypass, brachial artery systolic pressure and mean arterial pressure fell significantly below corresponding pressures in the femoral artery and aorta. Five minutes after cardiopulmonary bypass, only brachial artery systolic pressure was still less than femoral and aortic systolic pressures. By ten minutes after bypass, all significant pressure differences had resolved except between brachial and femoral artery systolic pressures. Clinically significant (≥ 5 mmHg) aortic-to-brachial reductions in mean arterial pressures occurred in six (19%) patients at two minutes and in three (10%) patients at five and ten minutes after bypass. Equivalent aortic-to-femoral mean pressure diminution occurred in two (6%) patients at two minutes and one (3%) patient at five and ten minutes after bypass. Neither systemic vascular resistance nor body temperatures contributed significantly to post-bypass central-to-peripheral pressure reductions. Immediately following bypass, femoral artery pressures reproduce central aortic pressures more reliably than do radial or brachial artery pressures.
Dissertations / Theses on the topic "Artère brachiale"
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Fortier, Catherine. "Aortic to brachial PWV ratio : le rôle hémodynamique des artères de conduction à prédominance musculaire par le gradient de rigidité artérielle." Doctoral thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/30268.
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L’engouement envers la rigidité aortique n’a cessé de croître depuis les quarante dernières années, et pour cause. La rigidité aortique est maintenant identifiée comme un marqueur indépendant d’événements cardiovasculaires et de mortalité toutes causes, en plus d’être la principale responsable de l’hypertension systolique isolée. Malgré tout, il semble que la rigidité aortique explique mieux les altérations de la microcirculation et les dommages aux organes à travers le gradient de rigidité artérielle, et donc, de l’interaction entre le segment aortique souple et les segments artériels musculaires adjacents plus rigides. Les propriétés mécaniques des artères de moyen calibre à prédominance musculaire (ex. : artère brachiale) sont considérées comme étant relativement stables à travers le temps. Ainsi, la détérioration du gradient de rigidité avec l’âge serait essentiellement causée par l’augmentation de la rigidité aortique. Or, dans une étude longitudinale effectuée auprès d’une population de patients hémodialysés, notre équipe a démontré que la rigidité brachiale diminuait sur une base annuelle, malgré une augmentation marquée de la rigidité aortique. Suite à ces observations, nous avons émis l’hypothèse que :1) les propriétés mécaniques des artères à prédominance musculaire ne sont possiblement pas aussi stables à travers le temps que ce qui est actuellement décrit; 2) l’augmentation de la rigidité aortique n’est probablement pas l’unique paramètre qui altère le gradient de rigidité artérielle, du moins dans une population à haut risque cardiovasculaire. Cette thèse avait donc pour principaux objectifs : 1) de déterminer l’effet ajouté d’une faible rigidité brachiale à une rigidité aortique élevée sur le risque de mortalité par le concept du gradient de rigidité artérielle; 2) d’examiner les relations entre les paramètres hémodynamiques et le gradient de rigidité artérielle; 3) d’examiner les déterminants des changements au niveau de la rigidité des segments artériels musculaires. Pour le premier objectif, nous avons proposé un paramètre du gradient de rigidité artérielle basé sur les rigidités centrales et périphériques, le aortic-brachial PWV ratio, qui est le rapport de la vitesse de l'onde de pouls aortique sur la vitesse de l'onde de pouls brachiale (PWV ratio: cf-PWV/cr-PWV). ous avons alors examiné l’effet du PWV ratio sur la mortalité toutes causes d’une cohorte de patients dialysés et avons démontré que le PWV ratio était fortement et indépendamment associé à une mortalité accrue, surpassant la rigidité aortique seule et les autres paramètres hémodynamiques connus. Dans une seconde étude, nous avons également démontré que le PWV ratio est un paramètre de vieillissement vasculaire indépendant de la pression artérielle moyenne. Ce qui pourrait conférer à la mesure du PWV ratio un avantage clinique intéressant par rapport à la mesure de la rigidité aortique qui, elle, est dépendante de la pression artérielle au moment de la mesure. Cette étude nous a aussi permis de mettre en lumière une diminution de la rigidité brachiale, principalement chez les individus âgés, et ce dans deux différentes cohortes de patients. Comme présenté dans le premier article de cette thèse, la régression de la rigidité brachiale n’était pas expliquée par l’âge, les facteurs de risque traditionnels ou les marqueurs minéraux, mais bien par l’ampleur initiale de la rigidité aortique. Ces travaux en relation avec ceux d’autres auteurs nous ont amenés à proposer que les artères musculaires de conduction puissent s’adapter à l’augmentation de la rigidité aortique en devenant plus compliantes, de sorte à compenser la diminution de la fonction de capacitance de l’aorte. Cette thèse présente également notre dernière étude dans laquelle nous avons utilisé un modèle émergent d’analyse de l’onde de pouls, l’approche par l’onde de réservoir. Ce nouveau modèle intègre la résistance périphérique et la compliance artérielle dans la compréhension de la morphologie des courbes de pression artérielle. Nous avons alors observé que la rigidité brachiale contribue significativement à cette pression de réservoir, en plus d’être associée à la pression diastolique. Les travaux de cette thèse ont été réalisés principalement auprès de patients ayant une maladie rénale chronique. Cette population s’avère très intéressante pour l’étude de la rigidité artérielle en raison de son hétérogénéité et du vieillissement vasculaire accéléré qui la caractérise. Toutefois, les résultats obtenus au cours de nos travaux peuvent ne pas s’appliquer à une population saine avec un faible risque cardiovasculaire et dont la relation pression-rigidité peut différer de celles de nos patients.Noninvasive determination of aortic stiffness has sparked considerable interest over the last four decades. Actually, increased aortic stiffness has emerged as an independent predictor of cardiovascular events and mortality, and as the main responsible of isolated systolic hypertension. However, the impacts of aortic stiffness on microcirculation and organ damages are best explained through the arterial stiffness gradient, in other words, with the interaction between soft aorta and adjacent stiff muscular arteries. Mechanical properties of muscular mid-caliber arteries (ex: brachial artery) are thought to be relatively stable over time, and then, do not significantly contribute to the lost and inversion of the arterial stiffness gradient with aging. In a longitudinal study with hemodialysis patients, we observed an annual decrease in brachial stiffness despite an accelerated increase in aortic stiffness. These observations let us hypothesize, first, that muscular arteries may not be as stable over time as it is expected and second, that arterial stiffness gradient may be a better predictor of mortality as both peripheral and central stiffness may change, at least in a high-risk population. The objectives of this thesis were to assess the combined effect of a reduced brachial stiffness and increased aortic stiffness on all-cause mortality by proposing a parameter of arterial stiffness gradient, the aortic-brachial PWV ratio (PWV ratio: cf-PWV/cr-PWV), to examine relationships between hemodynamic parameters, PWV ratio and its two PWV components, and to assess determinants of changes in brachial stiffness. In a dialysis cohort of patients, we demonstrated that PWV ratio was an independent predictor of all-cause mortality that performed better than aortic stiffness and other hemodynamic parameters. In contrast with aortic stiffness which is dependent on operational pressure, we demonstrated in a second study the pressure independence of PWV ratio in two different cohorts of patients. These results suggest that PWV ratio could be a new parameter of vascular aging with clinical interest above and beyond aortic stiffness. This study also a general regression of brachial stiffness in dialysis patients and over the sixth decade of age in the other cohort of patients. The regression of brachial stiffness, as presented in the first study of this thesis, was not explained by age, traditional risk factors, and mineral parameters. Baseline aortic stiffness was the only determinant of the decrease in brachial stiffness, which let us propose that muscular arteries may adapt to high aortic stiffness by becoming more compliant, dampening the ejected blood volume from the ventricular contraction instead of the aorta. This thesis also presents our last study on a new method of pulse wave analysis, the reservoir-wave approach, which reintroduces the importance of peripheral resistance and arterial compliance (reservoir pressure) in the comprehension of pressure curves. We observed that brachial stiffness was significantly associated with the reservoir pressure, but also with diastolic pressure. Finally, works presented in this thesis were conducted with the participation of chronic kidney disease patients, a very interesting population characterized by an early and accelerated vascular aging. Consequently, our results may not be reproducible in healthy or lower-risk populations.
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Farza, Abderrazak. "Analyse de la vasomotricité artérielle de la main." Paris 11, 1986. http://www.theses.fr/1986PA112237.
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Cette étude avait pour but, de mieux préciser les mécanismes de commande de la vasomotricité artérielle de la main. Elle a été faite sur des volontaires sains d'une part à l'état basal : expérience témoin, d’autre part après administration séparée de divers agents vasoactifs et ceci pour différentes températures de la main : air ambiant, dix, vingt, trente et quarante degrés centigrade. La technique utilisée consistait à déterminer le débit sanguin huméral (diamètre, vitesse) par vélocimétrie ultrasonore Doppler utilisant le mode pulsé. Simultanément la mesure indirecte de la pression artérielle permettait le calcul des résistances vasculaires locorégionales. A l'air ambiant les résistances vasculaires au niveau du membre supérieur n'ont pas été modifiées de façon significative par rapport à l'expérience témoin que sous prazosine (baisse de huit pour cent) et dans une moindre mesure sous nifédipine (baisse de quatre pour cent). Les modifications les plus importantes et les plus significatives ont été observées a vingt degrés centigrade de température locale de la main. En effet, les résistances vasculaires ont augmenté de plus de cinquante pour cent sous bêtabloqueurs et elles ont diminué de vingt pour cent sous prazosine et énalapril et de plus de quarante pour cent sous nifédipine. Ces résultats montrent que dans le cadre de la circulation du membre supérieur le contrôle nerveux alpha et bêta adrénergique et hormonal lié au système rénine angiotensine est très présent dans les conditions physiologiques au niveau du territoire artériel cutané surtout de la main a la différence du territoire artériel musculaire de l'avant-bras. Ceci explique la grande réactivité de la circulation artérielle cutanée de la main au stimulus thermique. Celle-ci reste avant tout au service de l'économie généraleThe main aim of this study is to better state precisely the arterial vasomotor control mechanisms of the hand. This study is effected on healthy volunteers one part at basal state control experience and in the other part after separate administration of vasoactive drugs, and this for different temperatures of the hand: ambient air, ten, twenty, thirty and fourth degrees centigrade. The method used consisted in determination of humeral blood flow (diameter, velocity) with a pulsed ultrasound Doppler velocimeter. Simultaneous the indirect measurement of blood pressure permitted to calculate loco-regional vascular resistances. In ambient air, the vascular resistances of the upper limb are significantly modified in comparison with control experience only with prazosin (eight per cent lowered) and in least measure with nifedipin (four percent lowered). The biggest and the more significant modifications are obtained at twenty degrees temperature of the hand. Then the vascular resistances increased more than fifty per cent under beta blockers and they decreased from twenty per cent under prazosin and enalapril and more than fourth per cent under nifedipin. These results point out that in the case of the circulation of the upper limb, the alpha and beta adrenergic neural control and hormonal control by renin-angiotensin system are very present in physiological conditions at the cutaneous arterial level particularly in the hand, in contrast with muscular arterial level of fore-arm: This explains the great reactivity of the cutaneous arterial circulation of the hand to thermal stimulus which is firstly to the service of the whole body economy
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Järhult, Susann J. "Hyperemic Brachial Artery Blood Flow Velocity." Doctoral thesis, Uppsala universitet, Medicin, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-132918.
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This thesis aims to evaluate the blood flow velocity in the Brachial artery during reactive hyperemia. Primarily to appraise the information it might contain regarding cardiovascular function and cardiovascular risk. Ultrasonographic doppler measurements of the Brachial artery were made on the 1016 men and women aged 70 included in the prospective investigation of the vasculature in Uppsala seniors (PIVUS) study. Analysis of the blood flow velocity in the forearm was made in comparison to established methods of estimating endothelial function, clinical markers of cardiovascular risk, the Framingham risk score and global atherosclerosis determined by whole body magnetic resonance angiography. Systolic blood flow velocity was positively related to cardiovascular risk whereas the diastolic velocity was inversely correlated. However, the systolic to diastolic blood flow velocity (SDFV) ratio was more closely associated with cardiovascular risk than its components apart. Ultrasonographic markers of Carotid atherosclerosis were related to the SDFV ratio. Concentric left ventricular remodeling and left ventricular mass index were also associated with the SDFV ratio, but not to its numerator or denominator separately. A similar pattern was found when assessing SDFV ratio in relation to global atherosclerosis, as well as to established markers of arterial compliance and vasodilation. In conclusion, during reactive hyperemia of the Brachial artery, the systolic to diastolic blood flow velocity ratio appears to contain information of additional value than its components separately, independently of established cardiovascular risk factors. Possibly, the SDFV ratio could offer a promising means to estimate cardiovascular risk in aging populations.PIVUS
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Dawes, Matthew. "Drug-induced vasodilation in human forearm resistance vasculature." Thesis, King's College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342326.
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Strand, Katherine Jeanette. "Measuring Brachial Artery Blood Flow Following a 3MHZ, 1.0 W/CM? Thermal Therapeutic Ultrasound Treatment." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27642.
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Ultrasound has been suggested to be one of the most commonly used therapeutic modalities in clinical practice. One of the purported benefits of thermal ultrasound, is the ability to increase blood flow to local tissue. This benefit however, has not been sufficiently supported by current literature and research. The purpose of this study was to determine if there is a significant increase in blood flow to the brachial artery following a 3MHz thermal ultrasound at 1.0 W/cm2 treatment over the brachial artery. Blood flow was measured in time-averaged mean velocity using a diagnostic ultrasound machine prior to, and following an ultrasound treatment given at these parameters. Results indicated that thermal ultrasound delivered for 5 minutes at 3MHz and 1.0 W/cm2 has the capability of producing a statistically significant increase in blood flow (?=0.015).
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Hogan, Kristen. "Implementation of Ankle-Brachial Index to Screen for Peripheral Artery Disease in High-Risk Asymptomatic Populations." Diss., North Dakota State University, 2019. https://hdl.handle.net/10365/29517.
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Peripheral Artery Disease (PAD) prevalence continues to rise with millions of individuals affected worldwide. PAD affects vasculature of the peripheries and the aorta, but it is also a critical risk factor for cardiovascular and cerebrovascular disease (Fowkes et al., 2008). Diagnosis is easily made utilizing the Ankle-Brachial Index (ABI) with indication of disease at a level of 0.9 or less or 1.4 or higher (American Heart Association, 2016). Risk factors for PAD include smoking, diabetes, hypertension, hyperlipidemia, family history, and chronic kidney disease. Smoking contributes to PAD two to three times more than cardiovascular disease (Rooke et al., 2011). The resting ABI is the primary method for establishing a PAD diagnosis (Skelly and Cifu, 2015). The ABI is a simple, non-invasive test using equipment readily available in a primary care clinic. Education and training for primary care providers and nurses in rural clinics can provide access to this test for rural communities decreasing commute time and increasing early detection and intervention for PAD. The purpose of this project was to increase awareness of PAD and ABI screening in a rural primary care clinic, and to increase screening of PAD utilizing the ABI test. Education was given to providers at a rural primary care clinic as well as to clinic registered nurses. Nurse education focused on PAD overview, ABI technique and calculation, and results reporting. Provider education focused on PAD overview, ABI screening guidelines, benefits of screening, barriers, and further referrals and imaging studies. ABI screening was offered to high-risk patients as part of their preventative Medicare Annual Wellness Visit (AWV). Results of the project demonstrated increased provider knowledge and competence through education. A post-education survey resulted in a positive impression from ABI screening citing ?early identification? and ?early intervention? as the predominant benefits. ABI screening results identified three out of 14 (21.4%) patients with a positive screen. All of the patients with positive results had a history of smoking affirming the significant effects of smoking in PAD.
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Thopy, Amanda J. "Effects of the DASH diet on brachial artery flow mediated dilation in adolescents with pre-hypertension and hypertension." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307125200.
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Andrade, Joana Adalgisa Furtado MagalhÃes. "AvaliaÃÃo da FunÃÃo Endotelial AtravÃs da DilataÃÃo Fluxo Mediada da ArtÃria Braquial em Adolescentes no PÃs-Parto." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4287.
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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoObjetivos: Avaliar a funÃÃo endotelial atravÃs da dilataÃÃo fluxo mediada em adolescentes e verificar se hà diferenÃa entre aquelas com antecedentes de gestaÃÃo normotensa ou com prÃ-eclÃmpsia (PE). Metodologia: Foram analisadas 99 adolescentes pÃs-parto (intervalo este que variou de dois meses a 11 meses pÃs-parto). Avaliou-se a dilataÃÃo fluxo mediada da artÃria braquial (DILA): apÃs repouso de cinco a dez minutos em decÃbito dorsal era verificada a pressÃo arterial no braÃo direito e realizada a medida da luz da artÃria braquial ao ultrassom. Essa medida era considerada a medida basal. Era, entÃo, realizada compressÃo do braÃo com o esfigmomanÃmetro por trÃs a cinco minutos com uma pressÃo que ultrapassasse em 30 mmHg a pressÃo sistÃlica. ApÃs a liberaÃÃo da compressÃo,era verificado o diÃmetro da luz arterial apÃs 30, 60, 90, 120 e 180 segundos em diÃstole no mesmo local da verificaÃÃo basal. Para cÃlculo da DILA, considerou-se a maior dilataÃÃo em porcentagem. Utilizou-se transdutor de alta frequÃncia (6 a 9 MHz). O ultrassonografista nÃo tinha conhecimento do resultado da gestaÃÃo no momento do exame. Verificou-se, retrospectivamente, o resultado da gestaÃÃo quanto a ausÃncia ou desenvolvimento de PE (leve ou grave). Considerou-se PE o aparecimento de pressÃo arterial maior ou igual a 140x90 mmHg apÃs 20 semanas de gestaÃÃo, associado à proteinÃria (uma cruz em duas verificaÃÃes ou duas cruzes em Ãnica verificaÃÃo, em amostra isolada ou 300 mg/dia em avaliaÃÃo de 24h). A normalidade da distribuiÃÃo dos dados foi avaliada pelos testes de Shapiro-Walk e Levene. Os grupos foram comparados pelos Testes de Kruskal-Wallis, T-Student e Mann-Whitney. Considerou-se p<0,05 como significante. Resultados: A idade variou de 13 a 18 anos (mÃdia 16,2  1,3). 76 gestaÃÃes foram consideradas normotensas, 23 prÃ-eclÃmpsias (11 PE leves e 12 graves). Verificou-se presenÃa de DILA > 10% em 75 pacientes e ≤ 10% em 24 delas. Oito pacientes (8,1%) apresentaram DILA < 5%. Inicialmente, a populaÃÃo foi dividida em trÃs grupos: normotensa, PE leve e PE grave. NÃo houve diferenÃa estatÃstica entre os grupos quanto a idade (16,3 x 15,9 x 16,1, p = 0,615), tempo entre o parto e a avaliaÃÃo (6,8 x 6,2 x 6,7, p = 0,497), IMC (22,8 x 26,1 x 24,3 Kg/mÂ, p = 0,090) e pressÃo diastÃlica (70,3 x 73,6 x 73,4 mmHg, p = 0,181), ou DILA (16,8 x 16,5 x 11,4%, p = 0,085). A pressÃo sistÃlica foi estatisticamente diferente entre os grupos (108,8 x 117,2 x 110,8 mmHg, p = 0,005), [ a pressÃo arterial sistÃlica na PE leve foi maior do que nas normotensas (p = 0,003). NÃo houve diferenÃa entre PE leve e grave (p = 0,126) e entre PE grave e normotensa (p = 0,686)]. Quando foram comparadas somente os dois grupos PE x normotensas, o IMC apresentou-se estatisticamente diferente (p = 0,031). Nos antecedentes de prÃ-eclÃmpsia, o IMC foi maior ( 25,3 x 22,8 Kg/m ). ConclusÃes: NÃo hà diferenÃa na presenÃa de disfunÃÃo endotelial verificada pela dilataÃÃo fluxo mediada da artÃria braquial em adolescentes com antecedentes de gestaÃÃo normotensa ou prÃ-eclÃmpsia. As pacientes com antecedentes de PE apresentaram pressÃo arterial sistÃlica e IMC mais elevados do que as pacientes com gestaÃÃo previa normotens.
Aims : To evaluate the endothelial function by flow mediated dilation in adolescents and to observe if there is difference among those with a history of normotensive pregnancy or with prÃ-eclampsia ( PE ) . Methodology : A total of 99 adolescents after delivery ( this interval ranged from 2 to 11 months post partum ). It was evaluated the flow mediated dilation of brachial artery ( FMD), after resting from 5 to 10 minutes in a supine position, it was checked the blood pressure in the right arm and achieved the light measure of the brachial vessel to ultrasound. This measure was considered the baseline one. So, it was performed the compression of the arm with the sphygmomanometer about 3 to 5 minutes with a pressure that exceeded in 30 mmHg the systolic pressure. After the release of the compression, it was checked the diameter of the lumen after 30, 60, 90, 120, and 180 seconds in diastole in the same place of the basal verification . For FMD calculation, it was considered the biggest expansion in percentage. It was used a high-frequency transducer (6 to 9 MHz). The ultrasonographer did not know the result of the pregnancy at the moment of the exam. It was found retrospectively, the result of the pregnancy concerning to the absence or development of PE (mild or severe). PE was considered the appearing of arterial blood pressure greater or equal to 140 x 90 mmHg after 20 weeks of pregnancy associated with proteinuria (a cross in two checks or two crosses in only one in an isolated sample or 300 mg/day in 24-hour evaluation). The normal distribution of data was evaluated by Shapiro - Walk and Levene tests. The groups were compared through the test of Kruskal â Wallis, R- student and Mann â Whitney. It was considered p < 0, 05 as significant. Results: The age ranged from 13 to 18 years (mean 16,2 Â 1,3 ). 76 pregnancies were considered normotensive, 23 preâeclampsia (11 mild and 12 severe PE). It was found the presence of FMD > 10 % in 75 patients and ≤ 10% in just 24. Eight patients (8, 1%) presented FMD < 5%. First the population was divided in three groups: normotensive, mild and severe PE. There was no statistical difference between the groups in relation to age (16,3 x 15,9 x 16,1, p = 0,615), time between delivery and evaluation (6,8 x 6,2 x 6,7, p= 0, 497). IMC (22,8 x 26,1 x 24,3 Kg/mÂ, p = 0,090), diastolic blood pressure (70,3 x 73,6 x 73,4 mmHg, p = 0,181), or FMD (16,8 x 16,5 x 11,4%, p= 0,085). The systolic blood pressure was statistically different between the groups (108,8 x 117,2 x 110,8 mmHg, p = 0,005), systolic blood pressure in mild PE was higher than in normotensive (p = 0,003). There was no difference between mild and severe PE (p = 0,126) and between severe PE and normotensive (p = 0,686). When it was compared only two groups PE x normotensive, the Body Mass Index (BMI) was statistically different (p = 0,031). In the history of PE, the Body Mass Index (BMI) was higher (25,3 x 22,8 Kg /mÂ). Conclusion :There is no difference in the presence of endothelial disfunction observed by the flow mediated dilation of the brachial artery in adolescents with a history of normotensive pregnancy or PE. Patients with history of PE presented systolic blood pressure and BMI higher than women with prior gestational normotensive.
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Bjarnegård, Niclas. "Aspects on wall properties of the brachial artery in man : with special reference to SLE and insulin-dependent diabetes mellitus /." Linköping : Department of Medical and Health Sciences, Linköping University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11273.
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Bjarnegård, Niclas. "Aspects on wall properties of the brachial artery in man : with special reference to SLE and insulin-dependent diabetes mellitus." Doctoral thesis, Linköpings universitet, Institutionen för medicin och hälsa, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11273.
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The mechanical properties of the arterial wall are of great importance for blood pressure regulation and cardiac load. With increasing age, large arteries are affected by increased wall stiffness. Furthermore, atherosclerotic manifestations may increase the stiffness even further, both processes acting as independent cardiovascular risk factors affecting the arterial system in a heterogeneous way. The aims of this thesis was to characterize the local mechanical properties of brachial artery (BA) with the aid of ultrasound technique and to evaluate the influence of 1) age, gender, sympathetic stimulation and examination site; 2) type 1 diabetes (DM) and its association to circulatory biomarkers; and 3) to evaluate the general properties of the arterial system with the aid of pulse wave velocity (PWV) as well as pulse wave analysis (PWA) in systemic lupus erythematosus (SLE) and correlate the findings to disease activity and circulatory biomarkers. In the most proximal arterial segment of the upper arm a pronounced age-related decrease in wall distensibility, increase in intima-media thickness (IMT), and a slight increase in diameter were seen. Sympathetic stimulation had no influence on wall mechanics. More distally in BA, no change in diameter, and only minor increase in IMT and decrease in distensibility were seen. No gender differences were found. These findings suggest that the principle transit zone between elastic and muscular artery behaviour is located in the proximal part of the upper arm. Women with uncomplicated insulin-dependent DM had similar diameter, IMT and distensibility in their distal BA as controls, whereas flow-mediated dilatation (FMD) was slightly, and nitrate mediated dilatation (NMD) markedly reduced. NMD was negatively correlated with higher HbA1c levels. Vascular smooth muscle cell function seems to be an early manifestation of vascular disease in women with DM, influenced by long-term hyperglycaemia. Women with SLE had increased aortic PWV compared to controls, a finding positively associated with increased levels of complement factor 3 (C3), but not with disease activity. The increased stiffness of central arteries may be one factor contributing to the increased cardiovascular risk seen in SLE.
Books on the topic "Artère brachiale"
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Goswami, Ruma. Does altering brachial artery tone with lower-body negative pressure and flow-mediated dilation affect arterial stiffness? Brock University, Faculty of Applied Health Sciences, 2006.
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Sanders, Kyle, Craig Miller, Ricardo Yamada, and Marcelo Guimaraes. Transradial Access Technique. Edited by S. Lowell Kahn, Bulent Arslan, and Abdulrahman Masrani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199986071.003.0058.
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Transradial access (TRA) competency can be rapidly achieved by the experienced interventionist. Statistically significant reductions in bleeding and other access site complications have been shown in randomized and meta-analysis studies when comparing TRA to both brachial and femoral artery access. Despite accumulating data, vascular interventional radiologists have been hesitant to adopt TRA for a variety of reasons. However, TRA offers distal dual blood supply, easily achievable hemostasis, and no adjacent critical structures. Other advantages of TRA are safer endovascular approach concomitant with earlier ambulation, improved patient comfort, decreased length of stay, as well as potential for cost savings. This chapter discusses the TRA technique, applications, challenges, and potential complications.
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Sprynger, Muriel, Iana Simova, and Scipione Carerj. Vascular echo imaging. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198726012.003.0068.
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Arterial diseases are heavily intertwined with atherosclerosis and coronary artery disease and the presence of both symptomatic and asymptomatic peripheral artery diseases is known to affect the rate of cardiovascular events and deaths. Screening for abdominal aortic aneurysm (AAA) in selected populations is also a major issue for the cardiologist. Additionally, intima-media thickness and ankle-brachial index (ABI) measurements, screening for carotid or femoral plaques, and new techniques looking at the rigidity and elasticity of arteries may further help with risk stratification, especially in intermediary risk populations. Cardiologists may also encounter other conditions such as subclavian artery disease, arterial dissection, arterial entrapment, and arteritis (e.g. giant cell or Takayasu’s arteritis). Even if they don’t undertake imaging themselves, they should know about these diseases and when to refer patients. Although cardiac and vascular ultrasounds are complementary, they require a completely different skill set and formal training. The ultimate goal of this chapter is to define the basic principles that any cardiologist should know, and also provide guidance to cardiologists more interested in vascular diseases. For the benefit of the patient there is a need for collaboration between the different disciplines involved in vascular diseases according to local medical availability and skill.
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Cantu, Robert C., and Robert V. Cantu. Injuries to the head and cervical spine. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199232482.003.0048.
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Chapter 48 discusses the differential diagnosis of the most common athletic head injuries, including cerebral concussion, intracranial hemorrhage, second impact syndrome or malignant brain oedema syndrome, post-concussion syndrome, , along with management guidelines for athletic head injuries, including immediate treatment, definitive treatment, what tests to order, when to refer, when to operate, and when to return to competition. Management and return to play guidelines are presented for athletic spine and spinal cord injuries, including spine fractures and spinal cord concussion/contusion and hemorrhage. Also covered are the diagnosis and management of stingers which may involve injury to the brachial plexus or cervical nerve root, vascular injuries of the neck involving either the carotid or vertebral artery, and special concerns regarding the Down’s Syndrome patient and atlantoaxial (C1–2) subluxation.
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Banerjee, Amitava, and Kaleab Asrress. Screening for cardiovascular disease. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0351.
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Screening involves testing asymptomatic individuals who have risk factors, or individuals who are in the early stages of a disease, in order to decide whether further investigation, clinical intervention, or treatment is warranted. Therefore, screening is classically a primary prevention strategy which aims to capture disease early in its course, but it can also involve secondary prevention in individuals with established disease. In the words of Geoffrey Rose, screening is a ‘population’ strategy. Examples of screening programmes are blood pressure monitoring in primary care to screen for hypertension, and ultrasound examination to screen for abdominal aortic aneurysm. The effectiveness and feasibility of screening are influenced by several factors. First, the diagnostic accuracy of the screening test in question is crucial. For example, exercise ECG testing, although widely used, is not recommended in investigation of chest pain in current National Institute for Health and Care Excellence guidelines, due to its low sensitivity and specificity in the detection of coronary artery disease. Moreover, exercise ECG testing has even lower diagnostic accuracy in asymptomatic patients with coronary artery disease. Second, physical and financial resources influence the decision to screen. For example, the cost and the effectiveness of CT coronary angiography and other new imaging modalities to assess coronary vasculature must be weighed against the cost of existing investigations (e.g. coronary angiography) and the need for new equipment and staff training and recruitment. Finally, the safety of the investigation is an important factor, and patient preferences and physician preferences should be taken into consideration. However, while non-invasive screening examinations are preferable from the point of view of patients and clinicians, sometimes invasive screening tests may be required at a later stage in order to give a definitive diagnosis (e.g. pressure wire studies to measure fractional flow reserve in a coronary artery). The WHO’s principles of screening, first formulated in 1968, are still very relevant today. Decision analysis has led to ‘pathways’ which guide investigation and treatment within screening programmes. There is increasing recognition that there are shared risk factors and shared preventive and treatment strategies for vascular disease, regardless of arterial territory. The concept of ‘vascular medicine’ has gained credence, leading to opportunistic screening in other vascular territories if an individual presents with disease in one territory. For example, post-myocardial infarction patients have higher incidence of cerebrovascular and peripheral arterial disease, so carotid duplex scanning and measurement of the ankle–brachial pressure index may be valid screening approaches for arterial disease in other territories.
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Reinecke, Holger. Epidemiology and global burden of peripheral arterial disease and aortic aneurysms. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0068.
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Peripheral artery disease (PAD) and aortic aneurysms are common diseases which show an increasing prevalence and incidence. From community-based trials assessing ankle–brachial indices, 2–4% of the general population have been shown to be affected by PAD, which increases up to 15% in those above 70 years of age. About 30–40% of the in-hospital cases with PAD have critical limb ischaemia and suffer from a 1-year mortality of 20–40%. Abdominal aortic aneurysms (AAAs) also show a relatively high prevalence of about 1–2% in the general population as found by large-scale, systematic duplex screening. Of these, about 5% come to hospital admittance with a ruptured AAA which is still associated with an in-hospital mortality of up to 50%. The prevalence of thoracic aortic aneurysms (TAAs) was reported to be at about 0.16–0.34% in selected subgroups of the general population. The incident cases of TAAs have risen from 10/100,000 cases in the late 1980s up to about 17/100,000 cases in the first decade of this millennium. It is noteworthy that PAD and aortic aneurysms as well as their associated co-morbidities remain in many cases underdiagnosed and undertreated. This leads to a high cardiovascular morbidity and mortality which could not be obviously markedly reduced in the recent decades. Since nearly all vascular disorders are systemic diseases, not only the specific vessel bed which leads to a presentation should be assessed but also all other possible vascular manifestations should be thoroughly examined to reduce adverse events.
Book chapters on the topic "Artère brachiale"
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Lippert, Herbert, and Reinhard Pabst. "Brachial artery and superficial brachial artery." In Arterial Variations in Man. J.F. Bergmann-Verlag, 1985. http://dx.doi.org/10.1007/978-3-642-80508-0_34.
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Ji, Yinze, and Aimin Dang. "Brachial Artery." In Encyclopedia of Gerontology and Population Aging. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-69892-2_1060-1.
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Beathard, Gerald A. "Brachial Artery Stenosis." In Dialysis Access Cases. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57500-1_52.
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Biemans, R. G. M. "Brachial Artery Entrapment Syndrome." In Vascular Surgery. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-72942-3_49.
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Aboul Hosn, Maen. "Subclavian/Brachial Artery Thrombolysis." In Procedural Dictations in Image-Guided Intervention. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40845-3_122.
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Moukarbel, George V., and Frederic S. Resnic. "Femoral and Brachial Artery Access." In Catheter-Based Cardiovascular Interventions. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27676-7_22.
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Snooks, S. J., and R. F. M. Wood. "Exposure of the Brachial Artery." In Fundamental Anatomy for Operative General Surgery. Springer London, 1989. http://dx.doi.org/10.1007/978-1-4471-1667-7_32.
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Malik, A. Rauoof, and Iftikhar J. Kullo. "Ultrasound Assessment of Brachial Artery Reactivity." In Asymptomatic Atherosclerosis. Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60327-179-0_29.
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Beathard, Gerald A. "Accessory Brachial Artery Feeding Arteriovenous Graft." In Dialysis Access Cases. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57500-1_17.
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Hans, Sachinder Singh. "Iliac Stenting for Chronic Total Occlusion Using Brachial Artery Access." In Challenging Arterial Reconstructions. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44135-7_86.
Full textConference papers on the topic "Artère brachiale"
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V., Raj Kiran, Nabeel P.M., Jayaraj Joseph, and Mohanasankar Sivaprakasam. "Brachial artery stiffness estimation using ARTSENS." In 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2017. http://dx.doi.org/10.1109/embc.2017.8036812.
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Al-Jumaily, A. M., and A. Salam Al-Ammri. "Acoustic Response of Arteries Using Thick Wall Tube Assumption." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12271.
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This paper describes the pressure wave propagation and reflection phenomenon in the aorta and the brachial artery to reproduce the brachial artery pressure and the strain imposed on the cuff external wall using thick wall tube assumption for the aorta. The effects of variations in aortic radius, thickness, heart rate and cuff pressure on the brachial artery pressure contours and pneumatic cuff strain contours were investigated The thick wall tube assumption for the aorta will improve the accuracy of the results and give an indication about the error involved when using thin wall tube assumption. The results indicate that there are some differences between the trends and shapes of the curves when using thick wall assumption. This difference could be as high as 3% for the eight feature points extracted from the pressure and strain contours. These feature points are the time duration before the deflection marking the arrival of the incident and reflected wave, the peak of the first and second pressure deflection minus the diastolic pressure, the peak of the first and second strain deflection minus the strain at diastolic pressure. These features points are used to calculate the brachial augmentation indices and the time lag which are used as a measure of arterial stiffness.
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Al-Rawi, M. A., A. M. Al-Jumaily, J. Lu, and A. Lowe. "An Investigation Into the Acoustic Response of Diseased Arterial Pulse Waveforms." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64754.
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Aneurysm is a major contributing factor to death and disability worldwide. This research explores the concept of using computational fluid dynamics (CFD) as a cost effective and non-invasive method to detect the location and condition of diseased segments of blood vessels. In this study, 12 different abdominal aortic aneurysms cases and a controlled case of 3D coupled fluid–structure interaction scheme (FSI) are modeled. Pulse waves travelling through these segments are analyzed with a focus on the reflected waves at diseased region and the brachial artery. A commercial software ANSYS 12.1® is used to solve FSI models. An invasive catheter pulsatile pressure waveforms data is imposed at the inlet and the four outlets of the aorta and also used to validate the presented models. The results show that an increase in the diameter of aneurysmal artery will have an effect on the systolic and diastolic pressure at the brachial artery. The systolic pressure increases due to the forward pulse wave resulting from aneurysm. However, diastolic pressure decreases due to the delay of the backward waves which reach at the brachial artery. These models show that the forward and backward waves, which can be attributed to changes in the diameter of the abdominal aorta, may be useful in diagnosing cardiovascular diseases non-invasively.
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Kabir, Shahariar. "Design of a human brachial artery system prototype controller." In 2011 International Conference on Electrical and Control Engineering (ICECE). IEEE, 2011. http://dx.doi.org/10.1109/iceceng.2011.6057376.
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Mookerjee, Ashis, Ahmed M. Al-Jumaily, and Andrew Lowe. "Individualized Transfer Functions for the Noninvasive Estimation of Central Pressure From Brachial Pressure Readings." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11825.
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A model-based investigation is carried out with the aim of developing an ab-initio methodology for the patient-specific estimation of central pressures from brachial blood pressure readings. The subclavian root-brachial artery segment is modeled as a 1-D tube with all model parameters linked to patient characteristics. A simulation is also run with typical physiological parameters, which gives a “first estimate” of the transfer function (TF). The TF derived using the patient characteristics is studied in detail to investigate the change in the arterial TF occurring with changes in patient characteristics. This TF is compared with the “first estimate” to evaluate the feasibility of using standard arterial properties.
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Lan, H., and A. M. Al-Jumaily. "New Blood Pressure Measurement Method Using Waveform Features." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87063.
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The Ausculatory and the Oscillometric are the most commonly used blood pressure measurement methods worldwide. However, the ausculatory method requires professionally trained observers and is not suitable for automatic BP measurement; while the oscillometric method is less accurate in wide age groups. A new BP measurement method is introduced here which determines the subject’s BP value by features of the waveform measured by a strain sensor on the arm skin. During the cuff based measurement process, blood pulses in the brachial artery lead to artery deformations, which transfer to the arm surface in the form of surface strain and to the cuff in the form of cuff pressure oscillation. Since the cuff volume and amount of air keeps changing during the measurement, arm surface strain changes are more related to blood pulse. A piezoelectric film strain sensor is placed on the arm surface above the brachial artery to measure the surface strain. Since the artery closure statuses are different during the BP measurement process, the unique features of the measured waveform are observed in our previous study. Using these features, the subject’s BP can be determined. The analysis of these features and their relation to the subject’s BP are illustrated in this paper.
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Allawendy, Samy, Cormac Duff, Emmanuel Osakwe, Dara Gallagher, Patricia Eadie, and Saima Aslam. "P67 Case report: Management of a neonate with brachial artery thrombosis." In Faculty of Paediatrics of the Royal College of Physicians of Ireland, 9th Europaediatrics Congress, 13–15 June, Dublin, Ireland 2019. BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health, 2019. http://dx.doi.org/10.1136/archdischild-2019-epa.422.
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Pieniak, Marcin, Krzysztof Cieślicki, Marek Żyliński, Piotr Górski, Agnieszka Murgrabia, and Gerard Cybulski. "Ankle Brachial Index: simple non-invasive estimation of peripheral artery disease." In Symposium on Photonics Applications in Astronomy, Communications, Industry and High-Energy Physics Experiments, edited by Ryszard S. Romaniuk. SPIE, 2014. http://dx.doi.org/10.1117/12.2074705.
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Mugeb, Al-harosh, and Arseny Larvushkin. "Model-based Assessment of Brachial Artery Diameter From Electrical Impedance Measurement." In 2021 IEEE Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT). IEEE, 2021. http://dx.doi.org/10.1109/usbereit51232.2021.9455041.
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Schmidt, Brian R., Chang-Beom Kim, Feroze B. Mohamed, Linda W. Nunes, Ziauddin Ahmed, and David M. Wootton. "Image-Based Modeling of Arteriovenous Hemodialysis Access Graft Flow." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43065.
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Thrombosis in an arteriovenous hemodialysis access graft is a major cause of graft failure. Changes in flow features due to increasing resistance at the venous anastomosis may promote the development of thrombosis. A three-dimensional computational fluid dynamics model was developed to analyze flow at the arterial anastomosis of a PTFE brachial-brachial arteriovenous access graft. The geometry was obtained from contrast-enhanced magnetic resonance images. A surface mesh was extracted using Amira software, and the final volume mesh was generated by Tgrid (Fluent, Inc). The simulation was carried out for steady flow conditions using Fluent CFD software with low-Reynolds number k-ω turbulence model. Small areas of recirculation can be seen in the area of the bifurcation, and results show a pressure difference between the proximal artery and the graft that is consistent with reported values.