Hemodynamic Consequences of Pacing-Induced Changes
نویسنده
چکیده
Atrial pacing was performed in 10 patients with various degrees of aortic valvular stenosis (AVS) and the hemodynamics were compared to eight normal subjects. Similar maximum heart rates (135 + 6/min) in each group resulted in no significant complications or symptoms and no changes in cardiac output or transvalvular pressure difference while stroke work (SW) and volume and left ventricular end-diastolic pressure (LVEDP) declined. A postpacing overshoot in LVEDP (control, 14 +2; postpacing, 25 + 3 mm Hg; P = 0.01) which occurred in the cases of AVS probably reflects a de-
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تاریخ انتشار 2005