نتایج جستجو برای: distensibility

تعداد نتایج: 1687  

Journal: :Hypertension 2017
Adam D Gepner Yacob Tedla Laura A Colangelo Matthew C Tattersall Claudia E Korcarz Joel D Kaufman Kiang Liu Gregory L Burke Steven Shea Philip Greenland James H Stein

Associations with antihypertensive medication classes and progression of arterial stiffness have not been studied in a prospective multiethnic cohort. All participants had hypertension at baseline, defined as blood pressure ≥140/90 mm Hg or use of antihypertensive medications. Medication use and blood pressure were assessed at 5 time points. Young's elastic modulus and distensibility coefficien...

Journal: :Acta Cardiologica Sinica 2015
Savas Demirpence Baris Guven Murat Muhtar Yilmazer Taliha Oner Onder Doksoz Timur Mese Vedide Tavli

BACKGROUND Coarctation of the aorta (CoA) is a chronic vascular disease characterized by a persistence of myocardial and vascular alterations. We aimed to evaluate children who have had successful coarctation surgery or balloon dilatation to evaluate the elasticity of the aorta, left atrial ejection force (AEF) and myocardial performance collectively at midterm follow-up. METHODS Nineteen pat...

Journal: :Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society 2014
Danilo Babin Daniel Devos Aleksandra Pizurica Jos J. M. Westenberg Ewout Vansteenkiste Wilfried Philips

Aortic stiffness has proven to be an important diagnostic and prognostic factor of many cardiovascular diseases, as well as an estimate of overall cardiovascular health. Pulse wave velocity (PWV) represents a good measure of the aortic stiffness, while the aortic distensibility is used as an aortic elasticity index. Obtaining the PWV and the aortic distensibility from magnetic resonance imaging...

2008
Luciano F. Drager Luiz A. Bortolotto Eduardo M. Krieger Geraldo Lorenzi-Filho

Obstructive sleep apnea (OSA) has emerged as an independent risk factor for atherosclerosis. However, OSA is frequently associated with several risk factors for atherosclerosis, including hypertension (HTN). The impact of OSA and HTN alone compared with the association of both conditions on carotid atherosclerosis is not understood. We studied 94 middle-aged participants free of smoking and dia...

2015
Christopher M. Haggerty Andrea C. Mattingly Ming C. Gong Wen Su Alan Daugherty Brandon K. Fornwalt German E. Gonzalez

Abdominal aortic aneurysm (AAA) is a disease of the aortic wall, which can progress to catastrophic rupture. Assessment of mechanical characteristics of AAA, such as aortic distensibility, may provide important insights to help identify at-risk patients and understand disease progression. While the majority of studies on this topic have focused on retrospective patient data, recent studies have...

2010
Inga Voges Jürgen Hedderich Eileen Pardun Hans-Heiner Kramer

Background—The status of the reconstructed aorta in hypoplastic left heart syndrome is considered an important determinant of long-term prognosis. Therefore, we assessed the anatomy, elastic properties, and viability of the aorta and right ventricular function in patients with hypoplastic left heart syndrome by cardiovascular magnetic resonance imaging. Methods and Results—Cardiovascular magnet...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2011
Adil E Bharucha Jessica Edge Alan R Zinsmeister

The mechanisms of increased rectal stiffness in women with fecal incontinence (FI) and rectal urgency are not understood. Our hypothesis was that distention-induced activation of mechanosensitive L-type calcium channels in smooth muscle contributes to increased rectal stiffness in FI. Anal pressures, rectal distensibility (compliance, capacity, and contractile response to sinusoidal oscillation...

Journal: :American journal of physiology. Heart and circulatory physiology 2004
Matthias Schmitt Ahmad Qasem Carmel McEniery Ian B Wilkinson Vicki Tatarinoff Kate Noble John Klemes Nicola Payne Michael P Frenneaux John Cockcroft Albert Avolio

Arterial distensibility, assessed by the pulse-wave velocity (PWV), is an independent predictor of cardiovascular risk. We investigated whether natriuretic peptides, acting locally, modify conduit artery distensibility in vivo. All studies were conducted in anesthetized sheep (n = 18) by using a validated ovine hindlimb model. In brief, the PWV was calculated, with the use of the foot-to-foot m...

Journal: :European Heart Journal 2022

Abstract Background Aortic stiffness has demonstrated an independent prediction of adverse cardiovascular events after ST-segment elevation myocardial infarction (STEMI) [1]. The general impact the comorbidities diabetes mellitus (DM), chronic kidney disease (CKD), anemia on aortic is well known [2,3]. Therefore, present study aimed to investigate influence metabolic magnetic resonance (CMR)-de...

Journal: :Circulation research 1990
J Watanabe M J Levine F Bellotto R G Johnson W Grossman

Coronary arterial pressure and flow are known to influence left ventricular (LV) diastolic distensibility, but the influence of coronary venous pressure is unknown. To test the hypothesis that increased coronary venous pressure leads to an increase in LV wall volume and a decrease in LV diastolic distensibility, we studied excised, blood-perfused LV isovolumic dog hearts without the pericardium...

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