Left Ventricular Function in Experimental Pulmonary Embolism
نویسندگان
چکیده
منابع مشابه
Ventricular interaction during experimental acute pulmonary embolism.
Although stroke volume may decrease markedly after acute pulmonary embolism, left ventricular end-diastolic pressure (LVEDP) usually changes very little, which suggests that compliance or contractility or both are reduced. To test the hypothesis that the altered LV function during pulmonary embolism is primarily due to reduced preload mediated by increased pericardial constraint, hemodynamics a...
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M-mode echocardiograms are demonstrated from a patient with subacute massive pulmonary embolism before and after thrombolytic treatment and clinical recovery. Severely impaired left ventricular contraction returned to normal. A reversible reduction in mitral valve opening velocity was also seen and was thought to be in part the result of diminished left atrial filling. This hypothesis was teste...
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In a canine model of pulmonary embolism (PE) produced by infusion of autologous blood clots, mean arterial blood pressure (MAP) decreased to 73 +/- 4 mm Hg while cardiac output (CO) decreased to less than 50 percent of baseline. Intravenous infusion of phenylephrine (PHEN) and norepinephrine (NE) restored MAP to somewhat above baseline values. However, only NE restored CO to control levels. The...
متن کاملRecovery of right and left ventricular function after acute pulmonary embolism.
AIM To evaluate recovery of cardiac function after acute pulmonary embolism (PE). MATERIALS AND METHODS Routine breath-held computed tomography (CT)-pulmonary angiography was performed in patients with suspected PE to confirm or exclude the diagnosis of PE at initial presentation. Electrocardiogram (ECG)-triggered cardiac CT was performed to assess biventricular function. After 6 months, card...
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Autologous blood clot was used to produce pulmonary macroembolism, and lycopodium spores to produce microembolism in nolmal mongrel dogs. Pressures were recorded from the pulmonary artery, left atrium and femoral artery; cardiac output and pulmonary blood volume (PBV) were determined using sequential indicator dilution curves from injections into the pulmonary artery and left atrium. Macroand m...
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ژورنال
عنوان ژورنال: Japanese Heart Journal
سال: 1971
ISSN: 0021-4868,1348-673X
DOI: 10.1536/ihj.12.221