LEFT-VENTRICULAR CAVITY SIZE DETERMINED BY PREOPERATIVE DIPYRIDAMOLE-THALLIUM SCINTIGRAPHY AS A PREDICTOR OF LATE CARDIAC EVENTS IN VASCULAR-SURGERY PATIENTS

Citation
G. Emlein et al., LEFT-VENTRICULAR CAVITY SIZE DETERMINED BY PREOPERATIVE DIPYRIDAMOLE-THALLIUM SCINTIGRAPHY AS A PREDICTOR OF LATE CARDIAC EVENTS IN VASCULAR-SURGERY PATIENTS, The American heart journal, 131(5), 1996, pp. 907-914
Citations number
28
Categorie Soggetti
Cardiac & Cardiovascular System
Journal title
ISSN journal
00028703
Volume
131
Issue
5
Year of publication
1996
Pages
907 - 914
Database
ISI
SICI code
0002-8703(1996)131:5<907:LCSDBP>2.0.ZU;2-#
Abstract
We hypothesized that left ventricular (LV) cavity size measured on dip yridamole thallium scintigraphy identifies patients at risk for late n onfatal myocardial infarction and cardiovascular death. Accordingly, w e retrospectively evaluated the predictive value of clinical and scint igraphic variables, including transendocardial LV cavity measurement p erformed on formatted images, in 335 vascular surgery patients. A nonh omogeneous perfusion pattern and enlarged LV cavity size were the most significant predictors of late events, and the interaction between th ese two variables was more predictive than was either variable alone. Life-table analysis demonstrated that patients with normal perfusion p atterns had the lowest incidence of late events regardless of cavity s ize (p < 0.0005). Conversely, patients with a non-homogeneous perfusio n pattern and the largest LV cavity measurements were at the highest r isk for late cardiac events (p < 0.0001). Therefore, this study demons trated that a measurement of LV scintigraphic cavity size can provide important risk stratification for late cardiac events.