PMID: 9420758Jan 1, 1995Paper

The value of perioperative clinical indexes and dipyridamole thallium scintigraphy for the prediction of myocardial infarction and cardiac death in patients undergoing vascular surgery

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
R C Hendel, J A Leppo

Abstract

Dipyridamole thallium scintigraphy has previously been shown to have predictive value for both perioperative and late cardiac events in patients undergoing vascular surgery. However, despite the prognostic utility of this technique, the relative importance of clinical factors and scintigraphic information is not well known. The purpose of this study was to evaluate the value of commonly used clinical risk indexes, composed of historic variables, and dipyridamole thallium scintigraphy for predicting perioperative cardiac event-free survival rates. Clinical and scintigraphic variables in 360 patients undergoing vascular surgery were analyzed for their predictive utility for perioperative and late (up to 5 years) cardiac events (nonfatal myocardial infarction or cardiac death) by means of chart review and telephone contact. Patients were correctly categorized as being at low, moderate, or high risk for perioperative cardiac events based on two clinical indexes. Thallium redistribution, however, was a more powerful predictor of cardiac events than these indexes. Even in a clinically low-risk patient cohort, the odds ratio for an event increased by 6- to 8-fold (p < 0.05) if thallium redistribution was noted. These indexes also demo...Continue Reading

References

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Citations

Jun 3, 2004·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Kenneth A Brown
Nov 1, 1996·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·K A Brown
Jul 21, 1998·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·J A Leppo, S T Dahlberg
Apr 26, 2005·Circulation Journal : Official Journal of the Japanese Circulation Society·Katsufumi HarafujiAkira Yamashina

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