ANGIOGRAPHICALLY ASSESSED CORONARY COLLATERAL CIRCULATION INCREASES VULNERABILITY TO MYOCARDIAL-ISCHEMIA DURING VASODILATOR STRESS-TESTING

Authors
GLIOZHENI E PICANO E BERNARDINO L PINGITORE A SICARI R MARZILLI M
Citation
E. Gliozheni et al., ANGIOGRAPHICALLY ASSESSED CORONARY COLLATERAL CIRCULATION INCREASES VULNERABILITY TO MYOCARDIAL-ISCHEMIA DURING VASODILATOR STRESS-TESTING, The American journal of cardiology, 78(12), 1996, pp. 1419
Citations number
20
Categorie Soggetti
Cardiac & Cardiovascular System
Journal title
The American journal of cardiology → ACNP
ISSN journal
00029149
Volume
78
Issue
12
Year of publication
1996
Database
ISI
SICI code
0002-9149(1996)78:12<1419:AACCCI>2.0.ZU;2-3
Abstract
In patients with a major coronary vessel occluded, the presence of goo d coronary collateral circulation increases vulnerability to myocardia l ischemia induced by pharmacologic coronary vasodilation. The presenc e of good collaterals results in a greater frequency, severity, and ex tent of dipyridamole-induced regional left ventricular dysfunction, co nsistent with the hypothesis of angiographically assessed collaterals facilitating ''steal phenomena'' during dipyridamole-induced coronary vasodilation.