Left ventricular regional relaxation and its nonuniformity in hypertrophic nonobstructive cardiomyopathy.
نویسندگان
چکیده
منابع مشابه
Left ventricular regional relaxation and its nonuniformity in hypertrophic nonobstructive cardiomyopathy.
BACKGROUND Regional nonuniformity has been suggested to be closely related to left ventricular (LV) relaxation in diseased heart. The purpose of the present study was to assess LV global and regional relaxation in patients with nonobstructive hypertrophic cardiomyopathy (HCM). METHODS AND RESULTS Left ventriculography was conducted simultaneously with pressure micromanometry in 10 normal cont...
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BACKGROUND Nonuniformity is a determinant of diastolic function. In patients with hypertrophic cardiomyopathy, hypertrophy, abnormal calcium handling, and regional ischemia can also play a role. This study was designed to assess regional mechanics, asynchrony, and asynergy in patients with hypertrophic cardiomyopathy. METHODS AND RESULTS Nine control subjects and 22 patients with hypertrophic...
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Left ventriculograms of 20 patients with hypertrophic cardiomyopathy were digitised frame by frame and analysed using a contour display. Abnormalities of regional wall movement were present in 17, and included an abnormal sequence of inward movement during systole (13), regional delay in the onset of inward movement (10), and an abnormal dispersion of peak velocities (5). Diastolic wall movemen...
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eft ventricular myocardial hypertrophy (LVH) occurs in any conditions, usually, it is thought, as a secondary or compensatory” response to abnormal pressure or volume oading and to stimuli, as yet incompletely understood, esulting from deficiencies in cardiac performance (1). hese responses may be modulated by genetic predisposiions, a relationship also not well understood. “Compensaory” hypert...
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ژورنال
عنوان ژورنال: Circulation
سال: 1991
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.84.4.1496