volume 56, issue 4, P207-209 1978
DOI: 10.1007/bf01705384
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Abstract: Left ventricular dynamics and papillary muscle mechanics were examined in 44 spontaneously hypertensive rats (SHR) (Okamoto, 9-21 weeks old), in 38 normotensive Wistar Kyoto inbred rats and in 31 control rats. In spite of marked pressure overload, SHR had normal peak systolic wall stress and reduced (21%) diastolic wall stress due to an increased proportion between left ventricular wall thickness and radius. Left ventricular function was normal (isovolumic contractility indices before and after aortic clamping…

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