Age and intrinsic left ventricular myocardial contractility.

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dc.contributor.authorGajra, Aen_US
dc.contributor.authorAggarwal, S Ken_US
dc.contributor.authorMohan, J Cen_US
dc.date.accessioned1997-03-01en_US
dc.date.accessioned2009-05-27T04:25:11Z
dc.date.available1997-03-01en_US
dc.date.available2009-05-27T04:25:11Z
dc.date.issued1997-03-01en_US
dc.description.abstractThe purpose of this study was to compare the left ventricular (LV) intrinsic contractile function in normal elderly (age > or = 60 years, mean age 66 +/- 4 years) and young (age < or = 35 years, mean 27 +/- 9 years) healthy volunteers by stress-shortening and stress-length relationship using a co-variate analysis. Echocardiographically determined meridional and circumferential wall stress were plotted against LV fractional shortening, velocity of circumferential fibre shortening, end-systolic volume and diameter. LV ejection fraction, preload (denoted by end-diastolic volume) and afterload (expressed as circumferential wall stress) were similar in the two groups. Stress-shortening and stress-length relationships using the circumferential wall stress showed no difference in the two groups, although meridional wall stress was greater in the elderly population. Our results suggest that circumferential wall stress is a better method to detect intrinsic contractile abnormality in the elderly. Intrinsic LV ejection performance is within the normal range in the elderly healthy individuals.en_US
dc.description.affiliationDepartment of Cardiology and Internal Medicine, G.B. Pant Hospital, New Delhi.en_US
dc.identifier.citationGajra A, Aggarwal SK, Mohan JC. Age and intrinsic left ventricular myocardial contractility. Indian Heart Journal. 1997 Mar-Apr; 49(2): 155-8en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/4939
dc.language.isoengen_US
dc.source.urihttps://indianheartjournal.comen_US
dc.subject.meshAdulten_US
dc.subject.meshAgeden_US
dc.subject.meshAging --physiologyen_US
dc.subject.meshEchocardiographyen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMyocardial Contraction --physiologyen_US
dc.subject.meshStroke Volumeen_US
dc.subject.meshVentricular Function, Left --physiologyen_US
dc.titleAge and intrinsic left ventricular myocardial contractility.en_US
dc.typeJournal Articleen_US
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