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Titolo:
EFFECTS OF ATRIAL-PACING STRESS TEST ON ULTRASONIC INTEGRATED BACKSCATTER CYCLIC VARIATIONS IN NORMAL SUBJECTS AND IN PATIENTS WITH CORONARY-ARTERY DISEASE
Autore:
ILICETO S; GALIUTO L; COLONNA P; NAPOLI VF; RIZZON P;
Indirizzi:
UNIV CAGLIARI,INST CARDIOL,PO S GIOVANNI DI DIO,VIA OSPED 46 I-09124 CAGLIARI ITALY UNIV BARI,INST CARDIOL BARI ITALY
Titolo Testata:
European heart journal
fascicolo: 10, volume: 18, anno: 1997,
pagine: 1590 - 1598
SICI:
0195-668X(1997)18:10<1590:EOASTO>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
TWO-DIMENSIONAL ECHOCARDIOGRAPHY; TISSUE CHARACTERIZATION; MYOCARDIAL-ISCHEMIA; STUNNED MYOCARDIUM; CONTRACTILE FUNCTION; VENTRICULAR-FUNCTION; CARDIAC CYCLE; WALL MOTION; REPERFUSION; OCCLUSION;
Keywords:
INTEGRATED BACKSCATTER; TRANSESOPHAGEAL ECHOCARDIOGRAPHY; STRESS-INDUCED ISCHEMIA; MYOCARDIAL THICKENING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
S. Iliceto et al., "EFFECTS OF ATRIAL-PACING STRESS TEST ON ULTRASONIC INTEGRATED BACKSCATTER CYCLIC VARIATIONS IN NORMAL SUBJECTS AND IN PATIENTS WITH CORONARY-ARTERY DISEASE", European heart journal, 18(10), 1997, pp. 1590-1598

Abstract

Aims To evaluate the effects of acute, atrial pacing-induced, reversible myocardial ischaemia on myocardial thickening and integrated backscatter cyclic variations in patients with or without coronary artery disease. Methods and results Thirty-six patients with suspected coronary artery disease underwent transoesophageal echocardiography with simultaneous atrial pacing, and coronary angiography. In myocardial segments not related to a significantly narrowed coronary artery, both from patients with and without coronary artery disease, thickening and integrated backscatter cyclic variations were not reduced al peak pacing. In segments related to a significantly narrowed coronary artery, thickening decreased at peak pacing, was still reduced at pacing interruption and recovered at 2 min, while backscatter cyclic variations, blunted at peak pacing, immediately recovered after pacing interruption. Conclusion During stress-induced myocardial ischaemia, backscatter cyclicvariations are blunted and thickening reduced. Returning to baseline,pre-atrial pacing values occur mote rapidly in backscatter cyclic variations than when thickening takes place. Evaluation of stress-inducedalterations in backscatter cyclic variations may aid in the identification of ischaemia-induced regional left ventricular functional impairment and, hence, in coronary artery disease diagnosis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 07:34:40