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Thematische Bibliographien / Hemodynamické parametry / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Hemodynamické parametry“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Rzheutskaya, Ryta E. "Characteristics of Hemodynamic Disorders in Patients with Severe Traumatic Brain Injury." Critical Care Research and Practice 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/606179.

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Purpose. To define specific features of central hemodynamic parameter changes in patients with isolated severe traumatic brain injury (STBI) and in patients with clinically established brain death and to determine the required course of treatment for their correction.Data and Research Methods. A close study of central hemodynamic parameters was undertaken. The study involved 13 patients with isolated STBI (group STBI) and 15 patients with isolated STBI and clinically established brain death (group STBI-BD). The parameters of central hemodynamics were researched applying transpulmonary thermodi

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Franceschi, Claude. "Definition of the venous hemodynamics parameters and concepts." Veins and Lymphatics 2, no. 4 (2013): 1. http://dx.doi.org/10.4081/hemodynamics.2013.1.

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Tap, Lisanne, Kim Borsboom, Andrea Corsonello, Fabrizia Lattanzio, and Francesco Mattace-Raso. "Deterioration of Kidney Function Is Affected by Central Arterial Stiffness in Late Life." Journal of Clinical Medicine 13, no. 5 (2024): 1334. http://dx.doi.org/10.3390/jcm13051334.

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Cardiovascular diseases affect kidney function. The aim of this study was to investigate the possible associations between hemodynamic parameters and change in kidney function in individuals aged 75 years and older. Data on hemodynamics and blood and urine samples were collected at baseline and during one-year visits. Hemodynamics were split into two groups based on median values. Changes in the estimated glomerular filtration rate (eGFR) were investigated between low and high groups for each hemodynamic parameter using analysis of variance. Changes in the albumin–creatinine ratio (ACR) were e

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Kovalenko, Olha Ye, Maryna Ye Rubanista, Olena V. Lytvyn, and Nataliia M. Ovodiuk. "HEMODYNAMIC FEATURES IN THE PATIENTS AFTER STROKE SUFFERED FROM CHRONIC PAIN." Wiadomości Lekarskie 76, no. 10 (2023): 2182–88. http://dx.doi.org/10.36740/wlek202310108.

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The aim: To study the hemodynamic parameters in patients with post-stroke pain syndromes. Materials and methods: We examined the hemodynamic parametrs of 74 patients who were treated at the Departments of General Neurology, Vascular Neurology and Pain Center in the Clinical Hospital «Feofania» State Administrative Department. Main group (44 patients) had stroke in anamnesis and chronic pain (headache, back pain, joint pain). The control group (30 patients) suffered from pain but had no stroke in anamnesis. Relationships between hemodynamic parameters and quantitative characteristics of chronic

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Ogilvie, Leslie M., Brittany A. Edgett, Jason S. Huber, et al. "Hemodynamic assessment of diastolic function for experimental models." American Journal of Physiology-Heart and Circulatory Physiology 318, no. 5 (2020): H1139—H1158. http://dx.doi.org/10.1152/ajpheart.00705.2019.

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Traditionally, the evaluation of cardiac function has focused on systolic function; however, there is a growing appreciation for the contribution of diastolic function to overall cardiac health. Given the emerging interest in evaluating diastolic function in all models of heart failure, there is a need for sensitivity, accuracy, and precision in the hemodynamic assessment of diastolic function. Hemodynamics measure cardiac pressures in vivo, offering a direct assessment of diastolic function. In this review, we summarize the underlying principles of diastolic function, dividing diastole into t

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Dong, X., Y. Shi, Y. Xia, et al. "POS1368 DIVERSITY OF HEMODYNAMIC TYPES IN CONNECTIVE TISSUE DISEASE ASSOCIATED PULMONARY HYPERTENSION: MORE THAN A SUBGROUP OF PULMONARY ARTERIAL HYPERTENSION." Annals of the Rheumatic Diseases 81, Suppl 1 (2022): 1023.2–1023. http://dx.doi.org/10.1136/annrheumdis-2022-eular.4576.

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BackgroundConnective tissue disease (CTD) associated pulmonary hypertension (PH) is classified as a subgroup of WHO group 1 PH, also called pulmonary arterial hypertension (PAH). However, not all CTD-PH fit the hemodynamic definition of PAH. This study investigates the diversity of hemodynamical types of CTD-PH, their different clinical characteristics and outcomes.ObjectivesThis study investigates the diversity of hemodynamical types of CTD-PH, their different clinical characteristics and outcomes.MethodsWe performed a retrospective cohort study. CTD-PH patients underwent right heart catheter

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Jian, Zini, Xianpei Wang, Meng Tian, et al. "Review of the Research Progress of Human Brain Oxygen Extraction Fraction by Magnetic Resonance Imaging." Oxidative Medicine and Cellular Longevity 2022 (October 18, 2022): 1–13. http://dx.doi.org/10.1155/2022/4554271.

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In recent years, the incidence of cerebrovascular diseases (CVD) is increasing, which seriously endangers human health. The study on hemodynamics of cerebrovascular disease can help us to understand, prevent, and treat the disease. As one of the important parameters of human cerebral hemodynamics and tissue metabolism, OEF (oxygen extraction fraction) is of great value in central nervous system diseases. The use of BOLD (blood oxygen level dependent) effect offers the possibility to study cerebral hemodynamic and metabolic characteristics by MRI (magnetic resonance imaging) measurements. There

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ARYNOV, A. A., N. Z. SHAPATOVA, and I. М. SMAGINA. "Diagnostics and treatment of hemodynamic disorders in cancer patients: current trends and own experience." Oncologia i radiologia Kazakhstana 55, no. 1 (2020): 28–29. http://dx.doi.org/10.52532/2663-4864-2020-1-55-28-29.

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Relevance: Hemodynamic disorders occupy a central position among pathological syndromes in patients receiving intensive care. Still, their diagnostics and treatment are sometimes delayed, and hemodynamic parameters and types of blood circulation are misinterpreted. This adds to the severity of such disorders and increases mortality. The purpose of the study was to analyze the diagnostics and treatment of hemodynamic disorders in cancer patients. Results: The applied methods of clinical diagnostics and non-invasive monitoring of hemodynamic parameters correlated well wit

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Kadam, Atharva, and Atharva Joshi. "A Review of Hemodynamic Parameters in Cerebral Aneurysm." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 10 (2024): 1–7. http://dx.doi.org/10.55041/ijsrem37969.

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Abstract—A cerebral aneurysm is a localized dilation that weakens the wall of a blood vessel in the brain. This condition comes in the form of abnormal widening, ballooning or in the form of a bleb. Gaining an understanding of the initiation, growth, and rupture of cerebral aneurysm has played a critical role in finding treatments that prevent the possibility of mortality and morbidity. Cerebral aneurysm develops as a result of the thinning of artery wall, and it is often difficult to diagnose prior to its rupture that leads to several fatal diseases, including brain damage, hemorrhagic stroke

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Uedono, Hideki, Akihiro Tsuda, Eiji Ishimura, et al. "U-shaped relationship between serum uric acid levels and intrarenal hemodynamic parameters in healthy subjects." American Journal of Physiology-Renal Physiology 312, no. 6 (2017): F992—F997. http://dx.doi.org/10.1152/ajprenal.00645.2016.

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Hyperuricemia has been reported to affect renal hemodynamics. In a recent study, both low and high levels of serum uric acid (SUA) were found to be associated with loss of kidney function. The goal of this study was to evaluate the relationship between SUA levels and intrarenal hemodynamic parameters in healthy subjects, using plasma clearance of para-aminohippurate (CPAH) and inulin (Cin). Renal and glomerular hemodynamics were evaluated by simultaneous measurements of CPAH and Cin in 48 healthy subjects (54.6 ± 13.4 yr). Intrarenal hemodynamic parameters, including efferent and afferent (Ra)

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Stepura, E., and T. Ippolitova. "Physiological features of the cardiomodynamics of Jersey cows." Genetics and breeding of animals, no. 1 (June 6, 2024): 67–73. http://dx.doi.org/10.31043/2410-2733-2024-1-67-73.

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Purpose: to establish indicators of cardiohemodynamic values and analyze them in Jersey cows.Materials and methods. In our studies, to measure and further analyze indicators of central and peripheral hemodynamics, we used a hardware-software complex for non-invasive study of central hemodynamics using the method of volumetric compression oscillometry KAP TsGosm-“Globus” (oscillometric analyzer of blood circulation indicators).Results. In the course of the study, in Jersey cows, average numerical values of myocardial-hemodynamic parameters were obtained: different types of blood pressure, vascu

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Arynov, A. A., N. Z. Shapatova, and I. M. Smagina. "Diagnostics and treatment of hemodynamic disorders in cancer patients: current trends and own experience." Oncologia i radiologia Kazakhstana 55, no. 1 (2020): 32–34. http://dx.doi.org/10.52532/2521-6414-2020-1-55-32-34.

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Relevance: Hemodynamic disorders occupy a central position among pathological syndromes in patients receiving intensive care. Still, their diagnostics and treatment are sometimes delayed, and hemodynamic parameters and types of blood circulation are misinterpreted. This adds to the severity of such disorders and increases mortality. The purpose of the study was to analyze the diagnostics and treatment of hemodynamic disorders in cancer patients. Results: The applied methods of clinical diagnostics and non-invasive monitoring of hemodynamic parame

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Agzamova, S. S., N. R. Yangieva, D. M. Tuychibaeva, and N. A. Tulyaganov. "Clinical experience in complex treatment of patients with fractures of the zygomatic-orbital complex." Reflection, no. 1 (September 20, 2023): 7–11. http://dx.doi.org/10.25276/2686-6986-2023-1-7-11.

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Aim. To determine the effectiveness of complex treatment of patients with concomitant orbital injuries based on functional and hemodynamic parameters. Methods: from 2019 to 2020, 152 patients with traumatic brain injury were hospitalized in the Department of Maxillofacial Surgery, 103 of them were diagnosed with various fractures of the bones of the middle zone of the face, among which 35 patients (35 eyes) had fractures of the zygomatic-orbital complex complicated by traumatic optic neuropathy. Patients were divided into two groups, depending on the therapy. Results. Analysis of the results o

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Yakushin, M. A., T. I. Yakushina, A. P. Kudrin, A. V. Vorobeva, M. D. Vasiliev, and A. R. Gabrielyan. "An innovative solution to the problem of hypertension." CARDIOMETRY, no. 31 (May 25, 2024): 54–62. http://dx.doi.org/10.18137/cardiometry.2024.31.5462.

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The results of the study of hemodynamic parameters in individuals of different age groups, the patterns of their age dynamics and the peculiarities of their influence on the formation of arterial hypo- and hypertension are presented. Based on the systematization of the profiles of systemic hemodynamics, clarifications in the pathogenesis of arterial hypertension are proposed. The rationale for an innovative approach to the choice of antihypertensive therapy, depending on the personal profile of hemodynamic parameters, is given.

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Wong, Kelvin K. L., Jianhuang Wu, Guiying Liu, Wenhua Huang, and Dhanjoo N. Ghista. "Coronary arteries hemodynamics: effect of arterial geometry on hemodynamic parameters causing atherosclerosis." Medical & Biological Engineering & Computing 58, no. 8 (2020): 1831–43. http://dx.doi.org/10.1007/s11517-020-02185-x.

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Khokonova, Tamara Muratovna, Sofiat Khasenovna Sizhazheva, Zhaneta Huseynovna Sabanchieva, et al. "Analysis of hemodynamic parameters and quality of life in patients with chronic kidney disease and arterial hypertension." Revista de la Universidad del Zulia 12, no. 33 (2021): 274–87. http://dx.doi.org/10.46925//rdluz.33.19.

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Purpose. The work is devoted to study the effects of antihypertensive, lipid-lowering and metabolic therapy in office and the average hemodynamic parameters, the parameters of central pressure in the aorta, vascular wall stiffness and quality of life in patients with CKD stage 3 in combination with arterial hypertension of 1-2 degrees, and without it. Materials and methods. Were examined patients with arterial hypertension of 1-2 degrees and CKD stage 3. Measured hemodynamic parameters with the help of a daily BP monitor “BPLab”. The quality of life of patients was assessed by the questionnair

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Blissitt, Patricia A. "Hemodynamic Monitoring in the Care of the Critically Ill Neuroscience Patient." AACN Advanced Critical Care 17, no. 3 (2006): 327–40. http://dx.doi.org/10.4037/15597768-2006-3010.

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Hemodynamic monitoring in the care of the critically ill neuroscience patient provides information that assists the clinician in minimizing secondary neuronal injury. Whereas no technology replaces the critical care nurse’s physical assessment, hemodynamic and neurological monitoring provides additional data beyond what is possible with the clinical examination alone. If neurological technology, such as intracranial pressure monitoring, is not available, hemodynamic monitoring along with the neurological examination provides limited but useful information essential to minimizing secondary neur

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Lu, Yuanshu. "A New Perspective on Exercise Rehabilitation Strategies Based on Hemodynamic Optimization: Enhancing Skeletal Muscle Repair." Theoretical and Natural Science 111, no. 1 (2025): 170–75. https://doi.org/10.54254/2753-8818/2025.au23391.

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The integration of hemodynamics into exercise rehabilitation has gained attention as a promising approach to enhance skeletal muscle repair. This study connects the physiological linkage between hemodynamics and muscle regeneration, focusing on how exercise-induced hemodynamic changes can optimize recovery outcomes. By reviewing recent literature, the research examines the mechanisms of blood flow restriction (BFR) training and its impact on muscle repair, alongside other emerging techniques like compression therapy. The key research question is how hemodynamic parameters can be adapted to des

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Darowski, M., G. Ferrari, F. Clemente, M. Guaragno, and De Lazzari. "Computer Simulation of Hemodynamic Parameter Changes by Mechanical Ventilation and Biventricular Circulatory Support." Methods of Information in Medicine 39, no. 04/05 (2000): 332–38. http://dx.doi.org/10.1055/s-0038-1634451.

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Abstract:When a Bi-Ventricular Assist Device (BVAD) is used in conjunction with mechanical ventilation (MV) of the lungs with positive intrathoracic pressure (Pt), the latter influences hemodynamics. The aim of our study was to assess the simultaneous influence of BVAD and MV on hemodynamics. We assumed ventricular pathological conditions as reduced elastances and increased rest volumes. Peripheral systemic arterial resistance was assumed to have different values. Data were obtained by computer simulation. Trends in main hemodynamic variables were compared with clinical data from literature. S

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Tang, Hong, Ziyin Dai, Miao Wang, et al. "Lumped-Parameter Circuit Platform for Simulating Typical Cases of Pulmonary Hypertensions from Point of Hemodynamics." Journal of Cardiovascular Translational Research 13, no. 5 (2020): 826–52. http://dx.doi.org/10.1007/s12265-020-09953-y.

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Abstract Pulmonary hypertension (PH) presents unusual hemodynamic states characterized by abnormal high blood pressure in pulmonary artery. The objective of this study is to simulate how the hemodynamics develops in typical PH cases without treatment. A lumped-parameter circuit platform of human circulation system is set up to simulate hemodynamic abnormalities of PH in different etiologies and pathogenesis. Four typical cases are considered, which are distal pulmonary artery stenosis, left ventricular diastolic dysfunction, ventricular septal defect, and mitral stenosis. The authors propose r

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Zheng, Hai, Yunlong Huo, Mark Svendsen, and Ghassan S. Kassab. "Effect of blood pressure on vascular hemodynamics in acute tachycardia." Journal of Applied Physiology 109, no. 6 (2010): 1619–27. http://dx.doi.org/10.1152/japplphysiol.01356.2009.

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Paroxysmal supraventricular tachycardia is accompanied by hypotension, which can affect vascular hemodynamics. Here, we hypothesized that a fall in blood flow as a result of hypotension has a larger effect on hemodynamics in medium-sized peripheral arteries compared with increased pulsatility in rapid pacing. To test this hypothesis, we experimentally and theoretically investigated hemodynamic changes in femoral, carotid, and subclavian arteries at heart rates of 95–170 beats/min after acute pacing. The arterial pressure, blood flow, and other hemodynamic parameters remained statistically unch

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Wang, Yueshen, Haiyi Yu, Quanyou Shi, Ming Xu, and Wei Gao. "Spatiotemporal analysis of the effects of exercise on the hemodynamics of the aorta in hypertensive rats using fluid-structure interaction simulation." Journal of Translational Internal Medicine 12, no. 1 (2024): 64–77. http://dx.doi.org/10.2478/jtim-2023-0140.

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Abstract Background and Objective Hemodynamic changes that lead to increased blood pressure represent the main drivers of organ damage in hypertension. Prolonged increases to blood pressure can lead to vascular remodeling, which also affects vascular hemodynamics during the pathogenesis of hypertension. Exercise is beneficial for relieving hypertension, however the mechanistic link between exercise training and how it influences hemodynamics in the context of hypertension is not well understood. Methods n exercise model was developed using spontaneously hypertensive rats (SHR) subject to a 12-

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Hidaka, O., M. Yanagi, and K. Takada. "Mental Stress-induced Physiological Changes in the Human Masseter Muscle." Journal of Dental Research 83, no. 3 (2004): 227–31. http://dx.doi.org/10.1177/154405910408300308.

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The effect of a long mental stress on the hemodynamics of masticatory muscles has not been investigated to date. We hypothesized some hemodynamic and electromyographic changes in jaw-closure muscles related to sympathetic nervous system activity. While healthy adult female volunteers performed a two-hour mental stress task, electromyographic activity of the temporal and masseteric muscles was recorded, and hemodynamic changes of the masseter muscle were measured non-invasively. Autonomic function was assessed by heart rate spectral analysis. Integrated electromyographic activity of the tempora

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Marine, Georgiyants, and Seredenko Natalya. "Changes in parameters of hemodynamics in abdominal delivery with different methods of anesthesia." ScienceRise: Medical Science, no. 1(34) (January 31, 2020): 57–62. https://doi.org/10.15587/2519-4798.2020.193841.

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<strong>Aim.</strong> To study and evaluate changes in the basic parameters of central and peripheral hemodynamics of the maternal organs in caesarean section (CS) with different methods of anesthesia. <strong>Materials and methods.</strong> 127 pregnant women were divided into 4 subgroups: Ia (n=31) – general anesthesia (GA) using Ketamine, Ib (n=31) – GA with Sodium Thiopental, IIa (n=31) – spinal anesthesia (SA), IIb (n=34) – SA with Ondansetron 8 mg intravenous. The assessment was performed in 5 stages: 1 – initial; 2 – beginning of operation;

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Stahl, Janneck, Anna Bernovskis, Daniel Behme, Sylvia Saalfeld, and Philipp Berg. "Impact of patient-specific inflow boundary conditions on intracranial aneurysm hemodynamics." Current Directions in Biomedical Engineering 8, no. 1 (2022): 125–28. http://dx.doi.org/10.1515/cdbme-2022-0032.

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Abstract For hemodynamic simulations of intracranial aneurysms boundary conditions (BC) are required. In most cases, these are not patient-specific and thus do not reflect the real flow conditions in the patient. This study investigates the influence of patient-specific inflow BC on intra-aneurysmal hemodynamics. The focus lies on gender and age variations of the patients. To asses the impact, four different inflow curves representing the velocity profile of the inflow over one cardiac cycle is modeled. These four inflow BC are varied in the simulations of each aneurysm from selected subgroups

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Chen, Wan-Ting, Nai-Fang Chi, Hao-Min Cheng, et al. "Associations Between Cerebral Vasoreactivity and Cognitive Function in the Middle-Aged Non-Demented Population." Journal of Alzheimer's Disease 86, no. 2 (2022): 679–90. http://dx.doi.org/10.3233/jad-215317.

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Background: Increasing evidence shows early vascular dysregulation in the pathophysiology of Alzheimer’s disease (AD) in elderly population. Objective: We wondered about the relationship between vascular health and cognitive performance in middle-aged adults. The present study aims to evaluate whether and which brain vascular hemodynamic parameters are associated with cognitive functions in a middle-aged, non-demented population. Methods: We recruited 490 middle-aged community-based participants (30–60 years). Transcranial color-coded sonography was used to measure cerebral vascular hemodynami

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Konecny, Filip. "Rodent General Anesthesia Suitable for Measurement of Experimental Invasive Hemodynamics." European Journal of Biology and Biotechnology 2, no. 4 (2021): 33–43. http://dx.doi.org/10.24018/ejbio.2021.2.4.259.

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In cases of experimentally performed invasive rodent cardiovascular measurements, selected general anesthesia for a non-recovery procedure and its proper pain control plays a fundamental role in obtaining good data recordings. Rodent anesthesia is challenging for several reasons including high metabolic rate with elevated possibility of hypothermia and hypoglycemia during the procedure, large body surface area to adjust drug medication and anticipate drug clearance. In this review article, suitable analgesia, and anesthesia to collect rodent hemodynamics is discussed with examples of commonly

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Chiglinczev, K. A., A. V. Zyrianov, and A. Yu Chiglinczev. "Intrarenal and central hemodynamics after Grade I-III kidney injury: is there a direct cause-and-effect relationship with posttraumatic arterial hypertension?" Experimental and Сlinical Urology 16, no. 3 (2023): 38–49. http://dx.doi.org/10.29188/2222-8543-2023-16-3-38-49.

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Introduction. Mechanical kidney injuries lead to renal dysfunction and vasospastic reaction, resulting in adaptive reactions of the organism, with the possibility of formation of secondary arterial hypertension. Purpose of the study: to determine the types of central gemodynamics, intrarenal blood flow characteristics, correlation interrelations of indices and to estimate the risks of secondary posttraumatic arterial hypertension development after Grade I-III kidney injury. Material and methods. Systemic hemodynamic parameters with identification of blood circulation type and intrarenal hemody

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Loomba, Rohit S., Vincent Dorsey, Enrique G. Villarreal, and Saul Flores. "The effect of milrinone on hemodynamic and gas exchange parameters in children." Cardiology in the Young 30, no. 1 (2019): 55–61. http://dx.doi.org/10.1017/s1047951119002865.

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AbstractMilrinone is a drug frequently used for hemodynamic support in children during critical illness. Although the hemodynamic changes induced by milrinone in children may appear similar to those of adults, the physiologic contributors of these changes remain vastly unknown. A systematic review was conducted to identify studies characterising the hemodynamic effects of milrinone in children during critical illness for hemodynamic support for various medical conditions. Studies were assessed for quality and those of satisfactory quality with pre- and post-operative hemodynamics for each pati

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Alavi, Rashid, Arian Aghilinejad, Heng Wei, Soha Niroumandi, Seth Wieman, and Niema M. Pahlevan. "A coupled atrioventricular-aortic setup for in-vitro hemodynamic study of the systemic circulation: Design, fabrication, and physiological relevancy." PLOS ONE 17, no. 11 (2022): e0267765. http://dx.doi.org/10.1371/journal.pone.0267765.

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In-vitro models of the systemic circulation have gained a lot of interest for fundamental understanding of cardiovascular dynamics and for applied hemodynamic research. In this study, we introduce a physiologically accurate in-vitro hydraulic setup that models the hemodynamics of the coupled atrioventricular-aortic system. This unique experimental simulator has three major components: 1) an arterial system consisting of a human-scale artificial aorta along with the main branches, 2) an artificial left ventricle (LV) sac connected to a programmable piston-in-cylinder pump for simulating cardiac

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Tochylo, S. A., Yu G. Nikiforova та M. V. Reznikov. "ПРИМЕНЕНИЕ ИНВАЗИВНОГО МОНИТОРИНГА ГЕМОДИНАМИКИ У ПАЦИЕНТА С КАРДИОГЕННЫМ ШОКОМ". Health and Ecology Issues, № 2 (28 червня 2015): 90–94. http://dx.doi.org/10.51523/2708-6011.2015-12-2-19.

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Objective: to analyze our own experience of intensive care in a patient in the state of cardiogenic shock under the control of invasive hemodynamic monitoring. Material and methods. The article presents a clinical case of treatment of a 57-year old patient with acute myocardial infarction of the left ventricular posterior wall complicated by ventricular fibrillation, cardiogenic shock, and respiratory distress syndrome. During the monitor control of the patient`s state, invasive hemodynamic monitoring according to PiCCO technology was additionally used. The complex treatment of the patient inv

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Häfner, H. M., E. Piche, and M. Jünger. "The ratio of working pressure to resting pressure under compression stockings: Its significance for the improvement of venous perfusion in the legs." Phlebologie 30, no. 04 (2001): 88–93. http://dx.doi.org/10.1055/s-0037-1617300.

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Summary Aim: A variety of medical compression products are available for the treatment of chronic venous insufficiency. Aim of this study was to quantify the acute effects of different compression class 2 (CCL2) stockings on venous hemodynamics. We examined the pressure exerted by the stockings as a biophysical parameter and tested for correlations between it and an improvement in venous hemodynamics. Methods: A total of 42 patients with chronic venous insufficiency in stages C1-4 Ep AS, A14, Ap, PR (CEAP classification) took part in the study. Venous hemodynamics were measured by dynamic stra

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Alexandryuk, Yulia, and Elena Ivantsova. "Adaptive Reactions of Students’ Blood Circulation in the Dynamics of the Annual Cycle of Study at the University." Natural Systems and Resources, no. 3 (October 2023): 36–41. http://dx.doi.org/10.15688/nsr.jvolsu.2023.3.5.

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Increasing training loads significantly affects the health of students. The cardiovascular system can react especially sharply to such changes. The purpose of the research is to analyze the indicators of systemic hemodynamics and adaptive reactions in students at Volgograd State University in the dynamics of the academic year. The study of hemodynamics was carried out in 2021–2023, from September to May. The following indicators were used: systolic and diastolic blood pressure, pulse pressure, mean hemodynamic pressure, systolic blood flow volume, minute volume of blood flow and peripheral vas

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Xing, Xiaoman, Wen-Fei Dong, Renjie Xiao, Mingxuan Song, and Chenyu Jiang. "Analysis of the Chaotic Component of Photoplethysmography and Its Association with Hemodynamic Parameters." Entropy 25, no. 12 (2023): 1582. http://dx.doi.org/10.3390/e25121582.

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Wearable technologies face challenges due to signal instability, hindering their usage. Thus, it is crucial to comprehend the connection between dynamic patterns in photoplethysmography (PPG) signals and cardiovascular health. In our study, we collected 401 multimodal recordings from two public databases, evaluating hemodynamic conditions like blood pressure (BP), cardiac output (CO), vascular compliance (C), and peripheral resistance (R). Using irregular-resampling auto-spectral analysis (IRASA), we quantified chaotic components in PPG signals and employed different methods to measure the fra

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Viburajah, Vidarshna, and Venkatesh Selvaraj. "Comparative Evaluation of Effect of Propofol, Etomidate and a Combination of Propofol and Etomidate on the Hemodynamic Response to Induction and Endotracheal Intubation: A Prospective Randomized Double Blinded Study." Journal of Anesthesiology and Reanimation Specialists' Society 32, no. 1 (2024): 20–26. http://dx.doi.org/10.54875/jarss.2024.68736.

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Objective: Earlier studies have shown favorable hemodynamics with etomidate compared to propofol. Our study aimed to compare the hemodynamic characteristics of intravenous induction with precalculated doses of propofol, etomidate, and a combination of propofol-etomidate in adult surgical patients. Methods: One hundred twenty six patients aged 18 to 50 years of either sex and ASA physical status I scheduled for various surgeries under general anesthesia were recruited. Patients were randomized into three groups. Group P-induced with pre-calculated propofol (2 mg kg-1) intravenous, Group E with

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FELLAT, Nadia, Kenza ALAMI, KARROUMI Nassima EL, and Rokaya FELLAT. "Hemodynamical Approach to Pulmonary Hypertension." RA JOURNAL OF APPLIED RESEARCH 09, no. 04 (2023): 156–63. https://doi.org/10.5281/zenodo.7791584.

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<strong>ABSTRACT:</strong> Pulmonary hypertension (PH) is a pathophysiological disorder characterized by a vascular obstruction leading to increased right ventricular overload. It can be caused by multiple conditions that we classify into 5 clinical groups. PH is defined hemodynamically and the role and indications of cardiac catheterization are increasingly important. The subject includes a panoply of pathologies with great complexity at the same time physio-pathological, histo-etiopathogenic, genetic... which are gathered under one chapter: the pulmonary vascular pathology. Right heart cathe

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Kuldeep Maurya. "Investigating the Hemodynamic Changes in Stenosed Arteries with and without Catheter Insertion." International Journal of Scientific Research in Science and Technology 11, no. 6 (2024): 686–97. https://doi.org/10.32628/ijsrst241161122.

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The study of hemodynamics in stenosed arteries is critical for understanding cardiovascular diseases and optimizing treatment strategies. This research explores the hemodynamic alterations caused by arterial stenosis and examines the influence of catheter insertion on these dynamics. Using mathematical modeling and computational fluid dynamics, the study evaluates key parameters such as wall shear stress, pressure drop, and flow velocity profiles under varying conditions. Results highlight significant differences in hemodynamic behavior with and without catheter insertion, emphasizing the impl

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Zhang, Xin, Tamrakar Karuna, Zhi-Qiang Yao, et al. "High wall shear stress beyond a certain range in the parent artery could predict the risk of anterior communicating artery aneurysm rupture at follow-up." Journal of Neurosurgery 131, no. 3 (2019): 868–75. http://dx.doi.org/10.3171/2018.4.jns173179.

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OBJECTIVEAmong clinical and morphological criteria, hemodynamics is the main predictor of aneurysm growth and rupture. This study aimed to identify which hemodynamic parameter in the parent artery could independently predict the rupture of anterior communicating artery (ACoA) aneurysms by using multivariate logistic regression and two-piecewise linear regression models. An additional objective was to look for a more simplified and convenient alternative to the widely used computational fluid dynamics (CFD) techniques to detect wall shear stress (WSS) as a screening tool for predicting the risk

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Voitikova, M. V., and R. V. Khursa. "Classification of Hemodynamics Using a Diagnostic Nomogram and Ambulatory Blood Pressure Data." Nonlinear Phenomena in Complex Systems 23, no. 3 (2020): 291–98. http://dx.doi.org/10.33581/1561-4085-2020-23-3-291-298.

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This article provides a detailed overview of the hemodynamic nomogram, a new diagnostic tool in hemodynamics based on the linear regression modeling of ambulatory blood pressure monitoring data (ABPM) and the Support Vector Machine (SVM) classifier. We investigated the classification capability and practical usage of the diagnostic nomogram, as well as cardiovascular phenomena described and limitations of linear modeling.One of the practical applications of the nomogram is the ability to retrace changes in ABPM parameters due to antihypertensive therapy. Misclassifications are explained by non

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Damiano, Robert J., Vincent M. Tutino, Nikhil Paliwal, et al. "Aneurysm characteristics, coil packing, and post-coiling hemodynamics affect long-term treatment outcome." Journal of NeuroInterventional Surgery 12, no. 7 (2019): 706–13. http://dx.doi.org/10.1136/neurintsurg-2019-015422.

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BackgroundRecurrence of intracranial aneurysms after endovascular coiling is a serious clinical concern.ObjectiveWe hypothesized that recurrence is associated with aneurysm morphology and flow, as well as the coil intervention and the induced flow modifications.MethodsWe collected 52 primary-coiling aneurysm cases that were either occluded (n=34) or recurrent (n=18) at >1 year follow-up. We created aneurysm models from pre-coiling digital subtraction angiographic images, calculated aneurysm morphology, simulated pre-coiling hemodynamics, modeled coil deployment, and obtained post-coiling he

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Soldozy, Sauson, Pedro Norat, Mazin Elsarrag, et al. "The biophysical role of hemodynamics in the pathogenesis of cerebral aneurysm formation and rupture." Neurosurgical Focus 47, no. 1 (2019): E11. http://dx.doi.org/10.3171/2019.4.focus19232.

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The pathogenesis of intracranial aneurysms remains complex and multifactorial. While vascular, genetic, and epidemiological factors play a role, nascent aneurysm formation is believed to be induced by hemodynamic forces. Hemodynamic stresses and vascular insults lead to additional aneurysm and vessel remodeling. Advanced imaging techniques allow us to better define the roles of aneurysm and vessel morphology and hemodynamic parameters, such as wall shear stress, oscillatory shear index, and patterns of flow on aneurysm formation, growth, and rupture. While a complete understanding of the inter

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Talyzin, A. M., S. V. Zhuravel, M. Sh Khubutiya, E. A. Tarabrin, and N. K. Kuznetsova. "Experience in the use of invasive hemodynamic monitoring using prepulmonary and transpulmonary thermodilution in lung transplantation." Russian Journal of Transplantology and Artificial Organs 24, no. 3 (2022): 51–56. http://dx.doi.org/10.15825/1995-1191-2022-3-51-56.

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Objective: to demonstrate the experience of using complex hemodynamic monitoring by means of prepulmonary thermodilution (PPTD) and transpulmonary thermodilution (TPTD) - PiCCO - in lung transplantation (LTx).Materials and methods. Presented is a clinical case study of a 51-year-old patient with the following diagnosis: severe bronchiectasis and type 3 respiratory failure. Bilateral lung transplantation was performed at Sklifosovsky Research Institute for Emergency Medicine, Moscow. Intraoperative hemodynamic monitoring was performed using PPTD and TPTD techniques.Conclusion. The case study pr

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Sun, Y., M. Beshara, R. J. Lucariello, and S. A. Chiaramida. "A comprehensive model for right-left heart interaction under the influence of pericardium and baroreflex." American Journal of Physiology-Heart and Circulatory Physiology 272, no. 3 (1997): H1499—H1515. http://dx.doi.org/10.1152/ajpheart.1997.272.3.h1499.

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A phenomenological model of the cardiopulmonary circulation is developed with a focus on the interaction between the right heart and the left heart. The model predicts the hemodynamic consequences of changing circulatory parameters in terms of a broad spectrum of pressure and flow waveforms. Hemodynamics are characterized by use of an electrical analog incorporating mechanisms for transseptal pressure coupling, pericardial volume coupling, intrathoracic pressure, and baroreflex control of heart rate. Computer simulations are accomplished by numerically integrating 28 differential equations tha

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Kumar, Prem, Sathesh Kumar, Robin Manidas, and Vishnu Eswar VV. "Evaluation of single dose ephedrine on the onset time of rocuronium bromide- A prospective randomized double blind study." Indian Journal of Clinical Anaesthesia 9, no. 1 (2022): 17–20. http://dx.doi.org/10.18231/j.ijca.2022.005.

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Ephedrine, an α1 and β agonist, that increases blood flow to muscles and thus increases the cardiac output. This concept is used in this study as speed by which the drug reaches the neuromuscular junction partly determines the onset of action of muscle relaxants. Our hypothesis was that ephedrine could hasten the onset of action of rocuronium bromide. The onset time of rocuronium was shorter after administration of ephedrine and there was no difference in the laryngoscopic viewsand hemodynamics between the two groups.Evaluation of the effects of a single dose of ephedrine on the onset time of

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Aldhiah, Nabilah Aisyah, Hudila Rifa Karmia, Roslaili Rasyid, Rini Rustini, and Selfi Renita Rusjdi. "Hemodynamic Differences in Patients Undergoing Cesarean Section with ERACS and Non-ERACS Methods Using Spinal Anesthesia at Siti Hawa Mother and Child Hospital Padang." International Journal of Research and Review 12, no. 1 (2025): 694–705. https://doi.org/10.52403/ijrr.20250176.

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Cesarean section is a surgical procedure to terminate pregnancy through an abdominal incision, which often causes hemodynamic changes, such as hypotension and increased heart rate due to spinal anesthesia. The Enhanced Recovery After Cesarean Section (ERACS) protocol was developed to reduce these complications through a perioperative care approach, including better pain control, early mobilization, and fluid management compared to non ERACS methods. This study aims to analyze the differences in hemodynamic parameters between ERACS and non ERACS methods in cesarean section patients with spinal

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Shilin, D. S., and K. G. Shapovalov. "Hemodynamic Parameters After Prone Positioning of COVID-19 Patients." General Reanimatology 17, no. 3 (2021): 32–41. http://dx.doi.org/10.15360/1813-9779-2021-3-32-41.

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Aim of the study. To examine the effect of prone positioning on hemodynamics in patients with COVID-19.Materials and methods. The study enrolled 84 patients of both sexes with community-acquired multisegmental viral and bacterial pneumonia associated with COVID-19, who were divided into groups according to the type of respiratory support. The tests were performed using the integrated hardware and software system for noninvasive central hemodynamic assessment by volumetric compression oscillometry.Results. We found that the pulse blood pressure velocity decreased from 281 [242.0; 314.0] to 252

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Jeong, Woowon, and Kyehan Rhee. "Hemodynamics of Cerebral Aneurysms: Computational Analyses of Aneurysm Progress and Treatment." Computational and Mathematical Methods in Medicine 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/782801.

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The progression of a cerebral aneurysm involves degenerative arterial wall remodeling. Various hemodynamic parameters are suspected to be major mechanical factors related to the genesis and progression of vascular diseases. Flow alterations caused by the insertion of coils and stents for interventional aneurysm treatment may affect the aneurysm embolization process. Therefore, knowledge of hemodynamic parameters may provide physicians with an advanced understanding of aneurysm progression and rupture, as well as the effectiveness of endovascular treatments. Progress in medical imaging and info

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Rumiantceva, M. V., L. M. Tsentsiper, and A. N. Kondratyev. "The effect of dexmedetomidine on hemodynamic parameters during neuro-oncological surgery." Messenger of ANESTHESIOLOGY AND RESUSCITATION 21, no. 4 (2024): 43–49. http://dx.doi.org/10.24884/2078-5658-2024-21-4-43-49.

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Introduction. The use of alpha 2-adrenoagonist dexmedetomidine, as an adjuvant for anesthesiological aid in neuro-oncological surgery, allows to create and maintain stable hemodynamics throughout the entire surgical intervention. The observed hemodynamic effects depend on the dose of dexmedetomidine.The objective was to evaluate the effect of the highly selective alpha2-adrenoagonist dexmedetomidine on hemodynamic parameters during anesthesia in surgeries for the removal of a brain tumor.Materials and methods. The study included 92 patients operated on for a brain tumor. The division into grou

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Nikolaeva, I. P., A. S. Kapranova, V. B. Popova, A. N. Lodyagin, and T. A. Frolova. "INFLUENCE OF THE DEGREE OF OBESITY AND HIGH-VOLUME LIPOSUCTIONON BODY COMPOSITION, HEMODYNAMIC CHANGES, BLOOD OXYGEN." HERALD of North-Western State Medical University named after I.I. Mechnikov 6, no. 4 (2014): 32–38. http://dx.doi.org/10.17816/mechnikov20146432-38.

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To evaluate the influence of the degree of obesity and high-volume liposuction on body composition, hemodynamic, blood oxygen. The actual values of the cardiac index and stroke index, as well as the calculation of these indicators on a body surface area of the "ideal subject" showed a significant correlation with body mass index, which confirms the impact of obesity on hemodynamic changes, myocardial dysfunction and the development of severe arterial hypoxemia. Analysis of the parameters of liquid sectors body showed insufficient increase in total, extracellular fluid and blood volume by a sig

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Juffermans, Joe F., Hans C. van Assen, Bastiaan J. C. te Kiefte, et al. "4D Flow MRI in Ascending Aortic Aneurysms: Reproducibility of Hemodynamic Parameters." Applied Sciences 12, no. 8 (2022): 3912. http://dx.doi.org/10.3390/app12083912.

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(1) Background: Aorta hemodynamics have been associated with aortic remodeling, but the reproducibility of its assessment has been evaluated marginally in patients with thoracic aortic aneurysm (TAA). The current study evaluated intra- and interobserver reproducibility of 4D flow MRI-derived hemodynamic parameters (normalized flow displacement, flow jet angle, wall shear stress (WSS) magnitude, axial WSS, circumferential WSS, WSS angle, vorticity, helicity, and local normalized helicity (LNH)) in TAA patients; (2) Methods: The thoracic aorta of 20 patients was semi-automatically segmented on 4

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