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  • Title: Relationship of peak systolic pressure/end systolic volume ratio to standard ejection phase indices and ventricular function curves in coronary disease.
    Author: Ramanathan KB, Erwin SW, Sullivan JM.
    Journal: Am J Med Sci; 1984 Nov; 288(4):162-8. PubMed ID: 6496562.
    Abstract:
    In order to determine the relationship of the peak systolic pressure/end-systolic volume (PSP/ESV) ratio to standard ejection phase indices [ejection fraction (EF), mean normalized systolic ejection rate (MNSER), mean velocity of circumferential fiber shortening (Vcf)], and ventricular function curves (VFC), hemodynamic and angiographic studies were carried out in 38 subjects: 11 normal controls (Group I) and 27 with coronary artery disease (CAD). The CAD patients were subdivided into those without (Group II) and those with (Group III) regional asynergy. EF, MNSER and Vcf were calculated from the ventriculogram using standard formulae. The slope of the left ventricular function curve was constructed by determining left ventricular stroke work index and left ventricular end-diastolic pressure before and after ventriculography, and dividing the change in the left ventricular stroke work index by the change in the left ventricular end-diastolic pressure. Peak systolic left ventricular pressure was determined before left ventriculography; minimal systolic volume was measured from the left ventriculogram. PSP/ESV ratio in the control group (Group I) was 6.4 +/- 2.8. This differed significantly from the ratio in patients (Group II) with CAD but without asynergy (4.7 +/- 2.2 p less than 0.025) and from that in patients (Group III) with CAD and asynergy (2.4 +/- 1.4, p less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
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