Ventricular function by radionuclide ventriculography in malignant hypertension.

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Ventricular function by radionuclide ventriculography in malignant hypertension.

Malignant hypertension is a unique and natural model for the study of abnormalities of left ventricular function due to arterial hypertension, because the development and regression of these abnormalities can be observed in a short period. Studies of ventricular function by radionuclide ventriculography, either before or after therapy, have not been previously reported in malignant hypertensive...

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Although right ventricular function may be examined by following the passage (first pass) of a bolus of radionuclide through the right heart before it reaches the left heart, the counts detected with conventional gamma cameras in such a short time interval are low; moreover, repeated determinations would result in an unacceptable radiation burden to the patient. We have modified the gated equil...

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Thirty two children (aged 5-19 years) with no clinical evidence of significant cardiovascular disease undertook continuous staged supine exercise on a bicycle ergometer. Multigated radionuclide ventriculography was performed at rest and during each exercise stage. Exercise duration and total workload both increased with age. Aerobic work correlated better with age than did total work. In most c...

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Exercise radionuclide ventriculography for predicting post-operative left ventricular function in chronic aortic regurgitation.

OBJECTIVES Ejection fraction (EF) reaction upon exercise by radionuclide ventriculography and standard echocardiographic parameters was evaluated as predictors for post-operative left ventricular (LV) function in chronic aortic regurgitation (AR). BACKGROUND The optimal timing of surgery for chronic AR is when the left ventricle is still compensating for the volume and pressure overload witho...

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ژورنال

عنوان ژورنال: Hypertension

سال: 1992

ISSN: 0194-911X,1524-4563

DOI: 10.1161/01.hyp.19.2_suppl.ii210