Left ventricular cavity size determined by preoperative dipyridamole thallium scintigraphy as a predictor of late cardiac events in vascular surgery patients
1996
Abstract We hypothesized that left ventricular (LV) cavity size measured on dipyridamole thallium scintigraphy identifies patients at risk for late nonfatal myocardial infarction and cardiovascular death. Accordingly, we retrospectively evaluated the predictive value of clinical and scintigraphic variables, including transendocardial LV cavity measurement performed on formatted images, in 335 vascular surgery patients. A nonhomogeneous perfusion pattern and enlarged LV cavity size were the most significant predictors of late events, and the interaction between these two variables was more predictive than was either variable alone. Life-table analysis demonstrated that patients with normal perfusion patterns had the lowest incidence of late events regardless of cavity size ( p p
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