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Titolo:
COMPARISON OF MYOCARDIAL CONTRAST ECHOCARDIOGRAPHY AND CORONARY ANGIOGRAPHY FOR ASSESSING THE ACUTE PROTECTIVE EFFECTS OF COLLATERAL RECRUITMENT DURING OCCLUSION OF THE LEFT ANTERIOR DESCENDING CORONARY-ARTERYAT THE TIME OF ELECTIVE ANGIOPLASTY
Autore:
SAKATA Y; KODAMA K; ADACHI T; LIM YJ; ISHIKURA F; FUJI H; MASUYAMA T; HIRAYAMA A;
Indirizzi:
OSAKA POLICE HOSP,DIV CARDIOVASC,TENNOJI KU,10-31 KITAYAMA CHO OSAKA 543 JAPAN KAWACHI GEN HOSP,DIV CARDIOL HIGASHIOSAKA OSAKA JAPAN OSAKA UNIV,SCH MED,DEPT MED 1 SUITA OSAKA 565 JAPAN
Titolo Testata:
The American journal of cardiology
fascicolo: 10, volume: 79, anno: 1997,
pagine: 1329 - 1333
SICI:
0002-9149(1997)79:10<1329:COMCEA>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
LEFT-VENTRICULAR FUNCTION; BLOOD-FLOW; WEDGE PRESSURE; INFARCTION; ISCHEMIA; INVIVO; AREA; RISK; THROMBOLYSIS; REPERFUSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
Y. Sakata et al., "COMPARISON OF MYOCARDIAL CONTRAST ECHOCARDIOGRAPHY AND CORONARY ANGIOGRAPHY FOR ASSESSING THE ACUTE PROTECTIVE EFFECTS OF COLLATERAL RECRUITMENT DURING OCCLUSION OF THE LEFT ANTERIOR DESCENDING CORONARY-ARTERYAT THE TIME OF ELECTIVE ANGIOPLASTY", The American journal of cardiology, 79(10), 1997, pp. 1329-1333

Abstract

To assess the immediate change in collateral flow distribution withinthe occluded myocardium and the acute protective effects on myocardial ischemia after coronary occlusion, myocardial contrast echocardiography (MCE) was performed in 15 patients with normal left ventricular function undergoing elective coronary angioplasty of the left anterior descending artery, and the results were compared with those obtained from coronary angiography (CA). The sonicated or nonsonicated contrast material was injected into the right coronary artery before and during coronary occlusion and collaterals were graded on a 4-point scale (none = 0 to good = 3). Development of subjective anginal symptoms, ST-segment shift and wall motion abnormality during coronary occlusion were graded on a 4-point scale (none = 0 to severe = 3). Both MCE and CA detected a significant development in collateral flow during coronary occlusion. There was no significant correlation between MCE and CA collateral grades before or during coronary occlusion. The collateral flow assessed with MCE was inversely but significantly correlated with development of subjective anginal symptoms (r(s) = -0.70, p < 0.01), ST-segment shift (r(s) = -0.78, p < 0.005) or wall motion abnormality (r(s)= -0.91,p < 0.001) during coronary occlusion. In contrast, the angiographic collateral flow was not correlated with development of anginal symptoms (r(s) = -0.46, p = 0.10), ST-segment shift (r(s) = -0.41, p =0.14), or wall motion abnormality (r(s) = -0.26, p = 0.35). The present study suggested that the acute protective effects of coronary collaterals during coronary occlusion were closely associated with myocardial perfusion rather than the angiographic epicardial collateral vesselfilling, and thus MCE was useful in assessing the acute protective effects of coronary collaterals during coronary occlusion. (C) 1997 by Excerpta Medico, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 22:59:22