PMID: 6978429Feb 15, 1982Paper

Regional left ventricular function in the three main coronary artery territories at rest and during exercise

Klinische Wochenschrift
B ReichartO B Harrington

Abstract

Twenty consecutive patients (mean age 51.6 years) with persistent severe angina pectoris underwent aorto-coronary bypass surgery receiving an overall of 60 anastomosis. On an average, 9.4 +/- 1.5 months p.o. first pass radionuclide ventriculograms (18 to 24 mCi 99m Technetium-Pertechnetate i.v.) were performed at rest and after exercise. Besides measurement of global ejection fraction (GEF), regional ejection fraction (REF) was assessed employing for the first time a new technique: each RAO-view of p.o. radionuclide left ventriculogram was subdivided into three regions according to supply of the three main coronary arteries and their branches as visualized on pre-operative coronary angiogram. GEF improved after maximum exercise in 13 cases by 8.1% points (from 50.4 to 58.5%), remained unchanged three times and decreased four times by 7.1 points (from 51.6 to 44.5%; all changes p less than 0.05). In completely revascularized regions (n = 35) REF improved 24 times by 9.7 points (from 51.1 to 60.8%), did not differ from rest REF six times and decreased in three case by 7.3 points (from 48.6 to 41.3%; all changes p less than 0.05). completely revascularized regions responded to exercise like normally perfused areas (increase 7.8 po...Continue Reading

References

Jul 1, 1978·Circulation·N M WolfJ F Spann
Jun 29, 1978·The New England Journal of Medicine·K M KentS E Epstein
Nov 1, 1978·World Journal of Surgery·R H JonesD C Sabiston
Jan 1, 1977·Cardiovascular Radiology·N Schad, O Nickel
Apr 1, 1973·The Annals of Thoracic Surgery·P HairstonH B Daniell
Dec 1, 1970·The American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine·J SaltielP Grondin
May 20, 1971·The New England Journal of Medicine·G ReesA Starr

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