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pubmed-article:9076548pubmed:abstractTextRight ventricular pressure volume cycles from patients with coronary artery disease were created in order to assess their characteristics and the effects of peak ventricular pressure and right and left artery coronary disease. Thirty-three patients undergoing diagnostic catheterisation for ischaemic heart disease underwent right ventricular catheterisation with a micromanometer and a conductance catheter. Simultaneous pressure and volume signals were recorded and analysed as functions of time, and of each other, forming pressure volume cycles. A total of 19/33 (58%) patients had an abnormal pressure volume loop with a clear end systolic shoulder, and an isovolumic relaxation phase. The mean peak ventricular pressure for all patients was raised (35.2 S.D. 11.8 mmHg), but there was no correlation between indices of shape and peak systolic pressure. Values of dP/dtmax were also raised, but there was no significant difference in this or any other index between patients with left or right coronary artery disease. Thus, in patients with coronary artery disease, the right ventricular pressure volume loop is frequently abnormal in a pattern that is recognised as a feature of an increased ventricular afterload.lld:pubmed
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pubmed-article:9076548pubmed:pagination223-8lld:pubmed
pubmed-article:9076548pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:9076548pubmed:year1997lld:pubmed
pubmed-article:9076548pubmed:articleTitleResting right ventricular function in patients with coronary artery disease: pressure volume analysis using conductance catheters.lld:pubmed
pubmed-article:9076548pubmed:affiliationRoyal Brompton Hospital, London, UK.lld:pubmed
pubmed-article:9076548pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:9076548pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed