Influence of myocardial fiber/sheet orientations on left ventricular mechanical contraction
نویسندگان
چکیده
منابع مشابه
Influence of pacing site on canine left ventricular contraction.
We investigated the influence of pacing site on several aspects of left ventricular (LV) performance to test the hypothesis that "effective ventricular muscle mass" is reduced with direct ventricular pacing. All studies were performed on isolated supported canine hearts that were constrained to contract isovolumically. To determine the influence of pacing site on magnitude and time course of is...
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BACKGROUND Myocardial recovery after ventricular assist devices (VAD) is rare but appears more common in nonischemic cardiomyopathies (NICM). We sought to evaluate left ventricular (LV) end diastolic diameter (LVEDD) for predicting recovery after VAD. METHODS AND RESULTS NICM patients receiving long-term mechanical support between 1996 and 2008 were reviewed. Subjects were divided into 3 grou...
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In order to assess potential improvement in abnormal left ventricular (LV) wall motion, eighteen subjects sixteen with obstructive coronary artery disease and LV asynergy and two with no evidence of organic heart disease were studied by cardiac catheterization and cineangiography. Ventriculograms were performed at rest and during a constant infusion of l-epinephrine (EPI) at 1-4 ,gg/min after a...
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It has been generally believed that advanced congestive heart failure (HF) is progressive, but there is increasing evidence that mechanical unloading with the use of left ventricular assist system (LVAS) occasionally reverses the progress of HF and permits device explantation. This "bridge to recovery" strategy is attracting interest, not only for the treatment of severe HF, but also in the stu...
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ژورنال
عنوان ژورنال: Mathematics and Mechanics of Solids
سال: 2013
ISSN: 1081-2865,1741-3028
DOI: 10.1177/1081286513485779