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Journal articles on the topic 'Haemodynamic conditions'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Kuboki, Takuo, Kenji Maekawa, and Glenn Clark. "Intramuscular haemodynamics using near infra-red spectroscopy as a research strategy to understand chronic muscle pain pathophysiology." Spectroscopy 19, no. 1 (2005): 27–36. http://dx.doi.org/10.1155/2005/148586.

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Recently, localized intramuscular haemodynamic disturbance has been recognized as one of the cardinal features of a chronically painful muscle. To test this hypothesis, we have carried out several studies that have assessed intramuscular haemodynamics to understand more about haemodynamic alteration under conditions of an experimentally induced vasoreactive challenges in healthy controls and in patients with chronic muscle pain using near infra?red (NIR) spectroscopy. In addition, we have validated the NIR based haemodynamic signals by comparing against a water signal intensity change taken fr

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2

Midgett, Madeline, Venkat Keshav Chivukula, Calder Dorn, Samantha Wallace, and Sandra Rugonyi. "Blood flow through the embryonic heart outflow tract during cardiac looping in HH13–HH18 chicken embryos." Journal of The Royal Society Interface 12, no. 111 (2015): 20150652. http://dx.doi.org/10.1098/rsif.2015.0652.

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Blood flow is inherently linked to embryonic cardiac development, as haemodynamic forces exerted by flow stimulate mechanotransduction mechanisms that modulate cardiac growth and remodelling. This study evaluated blood flow in the embryonic heart outflow tract (OFT) during normal development at each stage between HH13 and HH18 in chicken embryos, in order to characterize changes in haemodynamic conditions during critical cardiac looping transformations. Two-dimensional optical coherence tomography was used to simultaneously acquire both structural and Doppler flow images, in order to extract b

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3

Scully, M. E., L. Collins, and C. M. Cooney. "HAEMODYNAMIC STABILITY AND INTUBATING CONDITIONS USING PROPOFOL-SEVOFLURANE." Anesthesia & Analgesia 88, Supplement (1999): 305S. http://dx.doi.org/10.1097/00000539-199902001-00302.

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4

Kovacs, Gabor, Philippe Herve, Joan Albert Barbera, et al. "An official European Respiratory Society statement: pulmonary haemodynamics during exercise." European Respiratory Journal 50, no. 5 (2017): 1700578. http://dx.doi.org/10.1183/13993003.00578-2017.

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There is growing recognition of the clinical importance of pulmonary haemodynamics during exercise, but several questions remain to be elucidated. The goal of this statement is to assess the scientific evidence in this field in order to provide a basis for future recommendations.Right heart catheterisation is the gold standard method to assess pulmonary haemodynamics at rest and during exercise. Exercise echocardiography and cardiopulmonary exercise testing represent non-invasive tools with evolving clinical applications. The term “exercise pulmonary hypertension” may be the most adequate to d

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5

Johny, Cherian, S. M. Abdul Khader, B. Raghuvir Pai, M. Zuber, K. A. Ahmed, and Zanuldin Ahmad. "Haemodynamic study of idealistic renal artery under different flow conditions." Journal of Computational Methods in Sciences and Engineering 19, no. 2 (2019): 541–52. http://dx.doi.org/10.3233/jcm-181059.

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6

Kara, H., T. Aydogdu, and V. Ulusan. "A comparison of intubation conditions and haemodynamic effects of magnesium." European Journal of Anaesthesiology 17, Supplement 19 (2000): 133–34. http://dx.doi.org/10.1097/00003643-200000002-00434.

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7

Kobr, J., V. Treska, J. Molacek, V. Kuntscher, V. Liska, and J. Koppl. "Different cardiac loading conditions and haemodynamic monitoring in animal models." Bratislava Medical Journal 113, no. 03 (2012): 131–34. http://dx.doi.org/10.4149/bll_2012_032.

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8

Kahn, J. F., B. Kapitaniak, F. Huart, and H. Monod. "Physiological modifications of local haemodynamic conditions during bilateral isometric contractions." European Journal of Applied Physiology and Occupational Physiology 54, no. 6 (1986): 624–31. http://dx.doi.org/10.1007/bf00943351.

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9

Ströhn, A., H. M. Häfner, and M. Jünger. "Biophysical characteristics of medical compression stockings." Phlebologie 36, no. 04 (2007): 197–204. http://dx.doi.org/10.1055/s-0037-1622183.

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Summary Aim: Haemodynamic effectivity of 13 compression stockings in correlation with its physical characteristics. Patients, methods: In a prospective study, 42 patients in clinical stage C1–4 were examined with dynamic mercury strain gauge plethysmography to determine the effects of 13 different compression stockings in compression classes 2 and 3 (CEN) on venous haemodynamics. At the same time that venous function measurement was monitored, the pressure exerted by the compression stockings was measured under resting conditions and during standardized exercises by the patients. Results: Rest

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10

Chenzbraun, Adrian. "Non-ischaemic cardiac conditions: role of stress echocardiography." Echo Research and Practice 1, no. 1 (2014): R1—R7. http://dx.doi.org/10.1530/erp-14-0030.

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Stress echocardiography (SE) has a unique ability for simultaneous assessment of both functional class and exercise-related haemodynamic changes and as such is increasingly recognised for the evaluation of non-coronary artery disease pathologies. Some indications such as valvular heart disease or hypertrophic cardiomyopathy have been well established already, while others such as diastolic exercise testing are emerging of late. This paper addresses the main and best established indications for SE in non-ischaemic conditions, providing a practical perspective correlated with updated guidelines.

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11

Sousa, Luísa C., Catarina F. Castro, Carlos C. António, et al. "Haemodynamic conditions of patient-specific carotid bifurcation based on ultrasound imaging." Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization 2, no. 3 (2014): 157–66. http://dx.doi.org/10.1080/21681163.2013.875486.

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12

Laloy, J. "Impact of nanomaterials on haemodynamic parameters in normal and disease conditions." Toxicology Letters 350 (September 2021): S21. http://dx.doi.org/10.1016/s0378-4274(21)00284-8.

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13

Lacy, T. C., K. M. Aquino, P. A. Robinson, and M. M. Schira. "Shock-like haemodynamic responses induced in the primary visual cortex by moving visual stimuli." Journal of The Royal Society Interface 13, no. 125 (2016): 20160576. http://dx.doi.org/10.1098/rsif.2016.0576.

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It is shown that recently discovered haemodynamic waves can form shock-like fronts when driven by stimuli that excite the cortex in a patch that moves faster than the haemodynamic wave velocity. If stimuli are chosen in order to induce shock-like behaviour, the resulting blood oxygen level-dependent (BOLD) response is enhanced, thereby improving the signal to noise ratio of measurements made with functional magnetic resonance imaging. A spatio-temporal haemodynamic model is extended to calculate the BOLD response and determine the main properties of waves induced by moving stimuli. From this,

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14

Charles, Christopher J., Miriam T. Rademaker, and A. Mark Richards. "Urocortin 1 modulates the neurohumoral response to acute nitroprusside-induced hypotension in sheep." Clinical Science 112, no. 9 (2007): 485–91. http://dx.doi.org/10.1042/cs20060303.

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In addition to haemodynamic actions, Ucn1 (urocortin 1) has been reported to affect a number of hormonal systems; however, it remains unclear whether Ucn1 modulates circulating hormones under physiological conditions. Accordingly, in the present study, we have examined the effects of Ucn1 on haemodynamics, hormones and renal indices in normal conscious sheep subjected to a nitroprusside-induced hypotensive stimulus designed to alter hormonal levels within the physiological range. Ucn1 administration did not alter the haemodynamic response to nitroprusside-induced hypotension. However, compared

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15

Alfaidi, Mabruka, Torsten Schenkel, Paul Evans, Janet Chamberlain, and Sheila Francis. "192 Dietary Docosahexaenoic Acid Reduced Experimental Atherosclerosis by Inducing Protective Haemodynamic Conditions." Heart 101, Suppl 4 (2015): A107.2—A107. http://dx.doi.org/10.1136/heartjnl-2015-308066.192.

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16

Decailliot, F., D. Cherqui, B. Leroux, et al. "Effects of portal triad clamping on haemodynamic conditions during laparoscopic liver resection." British Journal of Anaesthesia 87, no. 3 (2001): 493–96. http://dx.doi.org/10.1093/bja/87.3.493.

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17

Versprille, A., M. van Oosterhout, and J. R. C. Jansen. "Haemodynamic and respiratory conditions during alternating and synchronous ventilation of both lungs." Intensive Care Medicine 22, no. 8 (1996): 813–17. http://dx.doi.org/10.1007/bf01709526.

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18

Versprille, A., M. van Oosterhout, and J. R. C. Jansen. "Haemodynamic and respiratory conditions during alternating and synchronous ventilation of both lungs." Intensive Care Medicine 22, no. 8 (1996): 813–17. http://dx.doi.org/10.1007/s001340050172.

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19

Neil, Lovina, and Harshil Shah. "A Study of Comparison of Intubating Conditions and Haemodynamic Effects after the Administration of Succinylcholine and Rocuronium Bromide." Indian Journal of Anesthesia and Analgesia 6, no. 4 (Part 2) (2019): 1373–76. http://dx.doi.org/10.21088/ijaa.2349.8471.6419.43.

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20

Rankin, A. J. "Mechanisms for the release of atrial natriuretic peptide." Canadian Journal of Physiology and Pharmacology 65, no. 8 (1987): 1673–79. http://dx.doi.org/10.1139/y87-262.

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In assessing the role that atrial natriuretic peptide (ANP) might have in the homeostasis of fluid volume and blood pressure, it is important to define the physiological and pathophysiological conditions that determine its release into the circulation. There is substantial evidence that ANP is released through atrial distension under a variety of conditions. There are also some indications that ANP may be released through humoral factors, although it is not clear whether this is a result of direct action on the myocytes or simply a result of ensuing haemodynamic changes. There is no evidence t

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21

Story, D. A., J. J. Houston, and I. L. Millar. "Performance of the Atom 235 Syringe Infusion Pump under Hyperbaric Conditions." Anaesthesia and Intensive Care 26, no. 2 (1998): 193–95. http://dx.doi.org/10.1177/0310057x9802600211.

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Inotrope-dependent patients may become haemodynamically unstable during treatment in the hyperbaric chamber. One possible cause is altered performance of infusion devices. We tested six Atom 235 syringe infusion pumps under hyperbaric conditions of 2.8 atmospheres absolute in a multiplace chamber using a gravimetric method. There was a small but significant reduction in infused volume during a thirty-minute period including compression time. We concluded that altered inotrope delivery may explain at least some of the haemodynamic instability sometimes seen, although a physiologic effect of hyp

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22

Qiu, Juhui, Yiming Zheng, Jianjun Hu, et al. "Biomechanical regulation of vascular smooth muscle cell functions: from in vitro to in vivo understanding." Journal of The Royal Society Interface 11, no. 90 (2014): 20130852. http://dx.doi.org/10.1098/rsif.2013.0852.

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Vascular smooth muscle cells (VSMCs) have critical functions in vascular diseases. Haemodynamic factors are important regulators of VSMC functions in vascular pathophysiology. VSMCs are physiologically active in the three-dimensional matrix and interact with the shear stress sensor of endothelial cells (ECs). The purpose of this review is to illustrate how haemodynamic factors regulate VSMC functions under two-dimensional conditions in vitro or three-dimensional co-culture conditions in vivo . Recent advances show that high shear stress induces VSMC apoptosis through endothelial-released nitri

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23

Khubulava, G. G., A. B. Naumov, S. P. Marchenko, et al. "Theoretical models of changes in haemodynamic parameters and gas exchange in univentricular circulation." Patologiya krovoobrashcheniya i kardiokhirurgiya 23, no. 3 (2019): 65. http://dx.doi.org/10.21688/1681-3472-2019-3-65-75.

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<div><strong>Aim.</strong> To develop theoretical models of changes in haemodynamic parameters of patients with univentricular haemodynamics.</div><div><strong>Methods.</strong> We analysed the effects of redistributing blood flow between the two circulatory systems (pulmonary and systemic) on systemic oxygen delivery and examined changes in the arterial and venous blood gas compositions. Mathematical analyses on the basis of oxygen flow into the pulmonary circulatory system and its consumption during circulation were perfo

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24

Lozano-Espinosa, Diego A., Victor M. Huertas-Quiñones, and Carlos E. Rodríguez-Martínez. "Impact of pulmonary hypertension and congenital heart disease with hemodynamic repercussion on the severity of acute respiratory infections in children under 5 years of age at a pediatric referral center in Colombia, South America." Cardiology in the Young 30, no. 12 (2020): 1866–73. http://dx.doi.org/10.1017/s1047951120002991.

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AbstractBackground:Acute respiratory infection is one of the main causes of morbidity in children. Some studies have suggested that pulmonary hypertension and congenital heart disease with haemodynamic repercussion increase the severity of respiratory infections, but there are few publications in developing countries.Methods:This was a prospective cohort study evaluating the impact of pulmonary hypertension and congenital heart disease (CHD) with haemodynamic repercussion as predictors of severity in children under 5 years of age hospitalised for acute respiratory infection.Results:Altogether,

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25

Karadeniz, U. "Comparison of intubating conditions and haemodynamic effects of cisatracurium and atracurium in children." European Journal of Anaesthesiology 17, Supplement 19 (2000): 139. http://dx.doi.org/10.1097/00003643-200000002-00452.

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26

Wilmot, G., N. Bhimsan, D. A. Rocke, and W. B. Murray. "Intubating conditions and haemodynamic changes following thiopentone or propofol for early tracheal intubation." Canadian Journal of Anaesthesia 40, no. 3 (1993): 201–5. http://dx.doi.org/10.1007/bf03037030.

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27

Husby, P., J. K. Heltne, M. E. Koller, et al. "Midazolam-fentanyl-isoflurane anaesthesia is suitable for haemodynamic and fluid balance studies in pigs." Laboratory Animals 32, no. 3 (1998): 316–23. http://dx.doi.org/10.1258/002367798780559257.

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The domestic pig is a useful model in certain areas of biomedical research. Effective use of this species is often encumbered by lack of reference values in conscious as well as anaesthetized animals. Anaesthesia itself influences physiological and biological variables; the anaesthetic technique often affects experimental results. The relationship between anaesthesia and haemodynamics is well characterized in man, but less established in pigs. We studied the effect of midazolam-fentanyl-isoflurane anaesthesia in six immature, male, domestic pigs (Norwegian landrace). Haemodynamic variables (he

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28

Imig, John D. "Eicosanoids and renal vascular function in diseases." Clinical Science 111, no. 1 (2006): 21–34. http://dx.doi.org/10.1042/cs20050251.

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Arachidonic acid metabolites are vital for the proper control of renal haemodynamics and, when not properly controlled, can contribute to renal vascular injury and end-stage renal disease. Three major enzymatic pathways, COX (cyclo-oxygenase), CYP450 (cytochrome P450) and LOX (lipoxygenase), are responsible for the metabolism of arachidonic acid metabolites to bioactive eicosanoids. These eicosanoids can dilate or constrict the renal vasculature and maintain vascular resistance in the face of changing vasoactive hormones. Renal vascular generation of eicosanoids is altered in pathophysiologica

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29

Bartolini, A., B. Gasparetto, F. Roncallo, L. Sullo, and L. Giberti. "Valutazione emodinamica delle malformazioni vascolari cerebrali con Angio-TC." Rivista di Neuroradiologia 10, no. 2_suppl (1997): 143–44. http://dx.doi.org/10.1177/19714009970100s258.

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Transit time, vascular volume, blood brain barrier permeability and rCBF images, obtained by computerized analysis of Angio-CT, were applied to the study of cerebral vascular malformations. Useful information with respect to the haemodynamic conditions of the lesions as well as the surrounding brain tissue was obtained.

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30

Pawar, Dr Maruti, Dr Rahul S. Jadhav, Dr Ullhas Misal, and Dr Prithviraj Gomsale. "Comparison of intubating conditions and haemodynamic changes using Vecuronium and Rocuronium bromide for laryngoscopy." International Journal of Medical Anesthesiology 2, no. 2 (2019): 167–73. http://dx.doi.org/10.33545/26643766.2019.v2.i2c.47.

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31

M, Srinivasa Rao, Prasad T. V. V. S. V, Sailaja Sailaja, and Kumudha D. A. "A COMPARATIVE STUDY OF HAEMODYNAMIC EFFECTS AND INTUBATION CONDITIONS OF ROCURONIUM BROMIDE VERSUS SUXAMETHONIUM." Journal of Evolution of Medical and Dental Sciences 7, no. 26 (2018): 3058–63. http://dx.doi.org/10.14260/jemds/2018/686.

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32

Bazin, J. E., T. Gillart, P. Rasson, N. Conio, L. Aigouy, and P. Schoeffler. "Haemodynamic conditions enhancing gas embolism after venous injury during laparoscopy: a study in pigs." British Journal of Anaesthesia 78, no. 5 (1997): 570–75. http://dx.doi.org/10.1093/bja/78.5.570.

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33

Zervides, C., and A. D. Giannoukas. "Computational phlebology: reviewing computer models of the venous system." Phlebology: The Journal of Venous Disease 28, no. 4 (2013): 209–18. http://dx.doi.org/10.1177/0268355512474250.

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Relatively little attention has been paid to the venous system and valves from a cardiovascular engineering perspective up to now. Given the involvement of venous valve haemodynamics in the development of deep vein thrombosis this is an area that needs more detailed investigation and close collaboration between clinicians and cardiovascular engineers. The purpose of this review article is to provide an indication of the physiological conditions that need to be included in any computational model of the venous system, based on recommendations from clinicians, and to summarize published computat

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34

Mosti, G. "Compression treatment in venous insufficiency and arterial disease." Phlebologie 43, no. 03 (2014): 127–33. http://dx.doi.org/10.12687/phleb2204-3-2014.

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SummaryCompression therapy is one of cornerstone in the treatment of venous and lymphatic disorders.It may be applied by means of different elastic or inelastic stockings, bandages, or other devices. Inelastic material is much more effective improving venous impaired haemodynamics than elastic material. Due to its physical properties inelastic material is able to exert a significantly higher pressure than elastic devices moving to the standing from the supine pressure; furthermore it is able to exert significantly higher pressure peaks during muscle exercise. This high pressure can overcome th

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35

Simakov, Sergey S. "Spatially averaged haemodynamic models for different parts of cardiovascular system." Russian Journal of Numerical Analysis and Mathematical Modelling 35, no. 5 (2020): 285–94. http://dx.doi.org/10.1515/rnam-2020-0024.

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AbstractThis paper revisits the usage of spatially averaged haemodynamic models such as non-stationary 1D/0D in space and stationary 0D in space models. Conditions of equivalence between different 1D model formulations are considered. The impact of circular and elliptic shapes of the tube cross-section on the friction term and the tube law is analyzed. Finally, the relationship between 0D lumped and 1D models is revealed.

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36

Kazakidi, A., S. J. Sherwin, and P. D. Weinberg. "Effect of Reynolds number and flow division on patterns of haemodynamic wall shear stress near branch points in the descending thoracic aorta." Journal of The Royal Society Interface 6, no. 35 (2008): 539–48. http://dx.doi.org/10.1098/rsif.2008.0323.

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Atherosclerotic lesions are non-uniformly distributed at arterial bends and branch sites, suggesting an important role for haemodynamic factors, particularly wall shear stress (WSS), in their development. The pattern of lesions at aortic branch sites depends on age and species. Using computational flow simulations in an idealized model of an intercostal artery emerging perpendicularly from the thoracic aorta, we studied the effects of Reynolds number and flow division under steady conditions. Patterns of flow and WSS were strikingly dependent on these haemodynamic parameters. With increasing R

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37

Courchaine, Katherine, and Sandra Rugonyi. "Quantifying blood flow dynamics during cardiac development: demystifying computational methods." Philosophical Transactions of the Royal Society B: Biological Sciences 373, no. 1759 (2018): 20170330. http://dx.doi.org/10.1098/rstb.2017.0330.

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Blood flow conditions (haemodynamics) are crucial for proper cardiovascular development. Indeed, blood flow induces biomechanical adaptations and mechanotransduction signalling that influence cardiovascular growth and development during embryonic stages and beyond. Altered blood flow conditions are a hallmark of congenital heart disease, and disrupted blood flow at early embryonic stages is known to lead to congenital heart malformations. In spite of this, many of the mechanisms by which blood flow mechanics affect cardiovascular development remain unknown. This is due in part to the challenge

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38

Sondore, Antoņina, Sanita Ūdre, Jānis Nemme, et al. "General Anaesthesia for Renal Transplantation in Latvia: A Critical Analysis Based on Clinical Experience." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences 67, no. 1 (2013): 28–34. http://dx.doi.org/10.2478/prolas-2013-0006.

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Anaesthesia methods for surgical procedures, as well as for organ transplantation, have experienced remarkable changes over the past 40 years. Cadaveric renal transplant function may be impaired by haemodynamic instability induced by anaesthesia drugs. This study aimed to analyse the safety and effectiveness of the different anaesthesia methods used for renal transplantation in Latvia since 1973, with focus on its haemodynamic effects. In this retrospective study anaesthesia chart review was conducted for 607 patients (pts), aged 17-75 yrs, ASA III/IV, undergoing renal transplantation using ge

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39

Shimano, Kenjiro, Shota Serigano, Naoki Ikeda, Tomoki Yuchi, Suguru Shiratori, and Hideaki Nagano. "Understanding of boundary conditions imposed at multiple outlets in computational haemodynamic analysis of cerebral aneurysm." Journal of Biorheology 33, no. 2 (2019): 32–42. http://dx.doi.org/10.17106/jbr.33.32.

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40

Özköse, Z., M. Akçabay, and G. Ayhan. "The effects of age on onset time, intubation conditions and haemodynamic parameters following rocuronium blockade." European Journal of Anaesthesiology 17, Supplement 19 (2000): 31–32. http://dx.doi.org/10.1097/00003643-200000002-00102.

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41

K, Kalpana, Harasoor S S, and Sudheesh K. "A COMPARATIVE STUDY OF INTUBATING CONDITIONS AND HAEMODYNAMIC EFFECTS FOLLOWING VECURONIUM, ROCURONIUM AND ITS COMBINATION." Journal of Evolution of Medical and Dental Sciences 3, no. 70 (2014): 14897–904. http://dx.doi.org/10.14260/jemds/2014/4003.

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42

VIKSE, ARILD, HALLVARD HOLDAAS, OLE M. SEJERSTED та FREDRIK KIIL. "Haemodynamic conditions for renal PGE2and renin release during α- and β-adrenergic stimulation in dogs". Acta Physiologica Scandinavica 124, № 2 (1985): 163–72. http://dx.doi.org/10.1111/j.1748-1716.1985.tb07648.x.

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43

Martin, D. J., M. Gellotte, J. M. Armstrong, and P. E. Hicks. "Pulmonary and systemic haemodynamic effects of cromakalim in conditions of normoxia and hypoxia in dogs." Journal of Autonomic Pharmacology 10, no. 5 (1990): 261–72. http://dx.doi.org/10.1111/j.1474-8673.1990.tb00026.x.

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44

Jose, J., K. Randall, J. Baron, and J. Khoo. "When echo gets in the way: physiological factors affecting Doppler data." Echo Research and Practice 7, no. 2 (2020): K11—K16. http://dx.doi.org/10.1530/erp-20-0006.

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Summary Transthoracic echocardiography (TTE) is widely used as a pre-operative screening tool. It can provide extensive information about cardiac function and underlying pathology, which could influence decisions regarding surgery. This patient was referred for TTE as part of pre-op screening, as he had a biological prosthetic aortic valve. This was a rare case where misleading TTE measurements inadvertently led to the patient being referred for transcatheter aortic valve implantation (TAVI), which delayed non-cardiac surgery. Learning points: Echocardiographers and referrers should be familia

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45

Thompson, W. Reid. "Stress echocardiography in paediatrics: implications for the evaluation of anomalous aortic origin of the coronary arteries." Cardiology in the Young 25, no. 8 (2015): 1524–30. http://dx.doi.org/10.1017/s1047951115002012.

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AbstractStress echocardiography in paediatrics is used to evaluate pre- and post-operative coronary artery conditions, as well as to gain haemodynamic information for a variety of diagnoses, although evidence regarding sensitivity, specificity, and predictive value is lacking. This review will consider the available literature with a focus on anomalous aortic origin of the coronary arteries and discuss a practical approach to test selection and use.

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46

Moorhead, K. T., J. G. Chase, T. David, and J. Arnold. "Metabolic Model of Autoregulation in the Circle of Willis." Journal of Biomechanical Engineering 128, no. 3 (2005): 462–66. http://dx.doi.org/10.1115/1.2187048.

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The Circle of Willis (CoW) is a ringlike structure of blood vessels found at the base of the brain. Its main function is to distribute oxygen-rich arterial blood to the cerebral mass. In a previous study, a one-dimensional (1D) model of the CoW was created to simulate a series of possible clinical scenarios such as occlusions in afferent arteries, absent or stringlike circulus vessels, or arterial infarctions (Moorhead et al., 2004, Comput. Methods Biomech. Biomed. Eng., 7(3), pp. 121–130). The model captured cerebral haemodynamic autoregulation by using a proportional-integral-derivative (PID

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47

LAKHANI, K., N. CONSTANTINOVICI, W. M. PURCELL, R. FERNANDO, and P. HARDIMAN. "Internal carotid artery haemodynamics in women with polycystic ovaries." Clinical Science 98, no. 6 (2000): 661–65. http://dx.doi.org/10.1042/cs0980661.

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Although polycystic ovarian syndrome (PCOS) is associated with risk factors for cerebrovascular disease, the available evidence does not demonstrate increased stroke mortality, and it has been suggested that some protective mechanisms must be operating in these women. Haemodynamic changes have been demonstrated in the pelvic vessels and aorta in this syndrome, but there have been no studies of the cerebral circulation. Since insulin resistance is a central feature of PCOS, it is of interest that cerebral blood flow may be altered in diabetic subjects. The present study was designed to assess i

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48

Poelma, Christian, Paul N. Watton, and Yiannis Ventikos. "Transitional flow in aneurysms and the computation of haemodynamic parameters." Journal of The Royal Society Interface 12, no. 105 (2015): 20141394. http://dx.doi.org/10.1098/rsif.2014.1394.

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Haemodynamic forces appear to play an influential role in the evolution of aneurysms. This has led to numerous studies, usually based on computational fluid dynamics. Their focus is predominantly on the wall shear stress (WSS) and associated derived parameters, attempting to find correlations between particular patterns of haemodynamic indices and regions subjected to disease formation and progression. The indices are generally determined by integration of flow properties over a single cardiac cycle. In this study, we illustrate that in some cases the transitional flow in aneurysms can lead to

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Erik M. Pedersen, Won Yong Kim, Nie. "Development of Velocity Profiles and Retrograde Flow in the Porcine Abdominal Aorta under Different Haemodynamic Conditions." Scandinavian Cardiovascular Journal 33, no. 4 (1999): 206–14. http://dx.doi.org/10.1080/14017439950141632.

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Hossain, Shaolie S., Yongjie Zhang, Xiaoyi Fu, et al. "Magnetic resonance imaging-based computational modelling of blood flow and nanomedicine deposition in patients with peripheral arterial disease." Journal of The Royal Society Interface 12, no. 106 (2015): 20150001. http://dx.doi.org/10.1098/rsif.2015.0001.

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Peripheral arterial disease (PAD) is generally attributed to the progressive vascular accumulation of lipoproteins and circulating monocytes in the vessel walls leading to the formation of atherosclerotic plaques. This is known to be regulated by the local vascular geometry, haemodynamics and biophysical conditions. Here, an isogeometric analysis framework is proposed to analyse the blood flow and vascular deposition of circulating nanoparticles (NPs) into the superficial femoral artery (SFA) of a PAD patient. The local geometry of the blood vessel and the haemodynamic conditions are derived f

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