Dlastolic Pressure-Volume Relationship in the Canine Left Ventricle
نویسندگان
چکیده
منابع مشابه
Diastolic pressure-volume relationship in the canine left ventricle.
Analysis of the passive pressure-volume filling curve of the left ventricle demonstrates that heart size and ventricular geometry exert major effects on the pressure-volume curve in the absence of changes in intrinsic muscle stiffness. Because the pressure-volume relationship is curvilinear, both quantitative and qualitative comparison of pressure-volume curves from different hearts is difficul...
متن کاملInstantaneous pressure-volume relationship of the canine right ventricle.
The instantaneous isovolumic and ejecting pressure-volume relationship of the right ventricle was studied in 11 cross-circulated, isolated canine hearts to characterize the right ventricular contractile state. Accurate measurement of volume was achieved by the use of a water-filled, thin latex balloon in the right ventricle connected to a special volume loading and transducing chamber. Pressure...
متن کاملThe effect of right ventricular filling on the pressure-volume relationship of ejecting canine left ventricle.
Acute shifts in the pressure-volume relationship of the left ventricle occur under several conditions. One potential mechanism for this phenomenon is ventricular interdependence, that is, the influence of right ventricular filling on the left ventricle. This mechanism was studied in an isolated cross-circulated ejecting canine heart preparation with balloons sewn into both right and left ventri...
متن کاملpressure-segment length relationship in canine left ventricle in acute volume overload
The effect of the pericardium on the end-systolic pressure-segment length relationship in the left ventricle was examined with an ultrasonic miniature gauge in open-chest dogs. In 12 dogs, blood was infused until left ventricular (LV) end-diastolic pressure reached about 20 mm Hg, and then the pericardium was opened widely. In the other 12 dogs a pericardiectomy was performed without blood infu...
متن کاملThe effect of pericardium on the end-systolic pressure-segment length relationship in canine left ventricle in acute volume overload.
The effect of the pericardium on the end-systolic pressure-segment length relationship in the left ventricle was examined with an ultrasonic miniature gauge in open-chest dogs. In 12 dogs, blood was infused until left ventricular (LV) end-diastolic pressure reached about 20 mm Hg, and then the pericardium was opened widely. In the other 12 dogs a pericardiectomy was performed without blood infu...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1971
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.29.3.267