نتایج جستجو برای: lv hypertrophy

تعداد نتایج: 58872  

Journal: :Stroke 2003
Marco R Di Tullio Donna R Zwas Ralph L Sacco Robert R Sciacca Shunichi Homma

BACKGROUND AND PURPOSE Left ventricular hypertrophy (LVH) is a risk factor for cardiovascular events, but its effect on ischemic stroke risk is established mainly in whites. The effect of LV geometry on stroke risk has not been defined. The aim of the present study was to evaluate whether LVH and LV geometry are independently associated with increased ischemic stroke risk in a multiethnic popul...

2017
Jionghua Huang He Huang Wei Pan Dejin Ou Wenjun Dai Yuhui Lin Jinlei Wu Wenjie Xie Ximing Chen

It has been suggested that renal denervation (RD) may attenuate left ventricular (LV) hypertrophy. However, the role that autophagy serves in this process is currently unclear. In the present study, utilizing a model of hypertension‑induced cardiac hypertrophy in spontaneous hypertensive rats, it was demonstrated that RD was significantly associated with a reduction in LV hypertrophy. Furthermo...

Journal: :Hypertension 1984
M A Pfeffer J Pfeffer I Mirsky J Iwai

The relationship between arterial pressure and left ventricular (LV) functional capacity and LV mass during the natural development of cardiac hypertrophy was assessed in Dahl-resistant (R) and -sensitive (S) hypertensive rats maintained on three dietary NaCl regimens (0.4%, 4.0%, and 8.0% for 9 weeks, then 4.0%) from 5 until 20 weeks of age. In R rats, arterial pressure and LV mass were unaffe...

Journal: :Journal of the American College of Cardiology 1999
J M Gardin

Left ventricular (LV) mass and geometry determined by echocardiography have convincingly been shown to predict cardiovascular morbidity and mortality independent of other cardiovascular disease (CVD) risk factors (1–7). For example, in the Framingham Heart Study, subjects $40 years old without clinically apparent CVD who were followed for four years demonstrated a risk factor–adjusted relative ...

2007
Sachihiko Nobuoka Takahide Matsuda Kengo Suzuki Naohiko Osada Masachika Tamura Fumihiko Miyake

Objectives: The purpose of this study was to assess how the preload reduction a#ects left ventricular LV diastolic function in hemodialysis patients with LV hypertrophy. Methods: Subjects included 14 patients with LV hypertrophy receiving hemodialysis. The subjects underwent echocardiographic and pulsed Doppler examinations before and after hemodialysis, and the data were analyzed to determine ...

Journal: :Hypertension 1992
M Nagano J Higaki F Nakamura K Higashimori N Nagano H Mikami T Ogihara

Angiotensin II (Ang II) has been shown to induce proliferation of cardiac myocytes. To examine the role of Ang II in left ventricular (LV) hypertrophy, isoproterenol was infused subcutaneously into 9-week-old male Wistar rats at 4.2 mg/kg/day for 7 days. Infusion of isoproterenol increased LV weight and Ang II concentrations in plasma and in LV tissue. In anephric rats, LV weight and tissue Ang...

Journal: :Circulation. Cardiovascular imaging 2012
Martin S Maron Ethan J Rowin David Lin Evan Appelbaum Raymond H Chan C Michael Gibson John R Lesser Jana Lindberg Tammy S Haas James E Udelson Warren J Manning Barry J Maron

BACKGROUND In hypertrophic cardiomyopathy (HCM), cardiovascular MR can detect morphological abnormalities of the left ventricle (LV) not visualized with echocardiography. Although myocardial crypts (ie, narrow, blood-filled invaginations within the LV wall) have been recognized in HCM, all clinical implications of these structural abnormalities within the broad clinical HCM spectrum are not com...

Journal: :Journal of the American College of Cardiology 2000
D J Hildick-Smith L M Shapiro

OBJECTIVES The goal of this study was to assess coronary flow reserve (CFR) before and after aortic valve replacement (AVR). BACKGROUND Coronary flow reserve is impaired under conditions of left ventricular (LV) hypertrophy. It is not known whether CFR improves with regression of LV hypertrophy in humans. METHODS We investigated 35 patients with pure aortic stenosis, LV hypertrophy and norm...

2014
Annalisa Sechi Gaetano Nucifora Gianluca Piccoli Andrea Dardis Bruno Bembi

BACKGROUND Cardiovascular magnetic resonance (CMR) with late gadolinium enhancement (LGE) imaging is increasingly used to assess myocardial involvement in patients with Fabry disease, an X linked lipid storage disorder. However, it is often proposed as an optional tool. A different cardiomyopathic disease progression between male and female patients was hypothesised in previous studies, as in f...

2012
Lairumbe Korduni Silangei Venance Philis Maro Helmut Diefenthal Gibson Kapanda Matthew Dewhurst Hery Mwandolela Ben Hamel

BACKGROUND With hypertension, the cardiovascular system changes to adapt to the varying neuro-humoral and hemodynamic changes and this may lead to the development of different left ventricular geometric patterns, each carrying a different risk profile for major adverse cardiovascular events. METHODS Using a consecutive sampling technique, a cross-sectional, prospective, hospital based study w...

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