Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Factors predicting mortality in patients after myocardial infarction caused by left main coronary artery occlusion - Significance of ST segment elevation in both aVR and aVL leads
Autore:
Hori, T; Kurosawa, T; Yoshida, M; Yamazoe, M; Aizawa, Y; Izumi, T;
Indirizzi:
Niigata Univ, Sch Med, Dept Internal Med 1, Niigata 9518510, Japan NiigataUniv Niigata Japan 9518510 nternal Med 1, Niigata 9518510, Japan
Titolo Testata:
JAPANESE HEART JOURNAL
fascicolo: 5, volume: 41, anno: 2000,
pagine: 571 - 581
SICI:
0021-4868(200009)41:5<571:FPMIPA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARDIOGENIC-SHOCK; TOTAL OBSTRUCTION; ANGINA-PECTORIS; ANGIOPLASTY; SURVIVAL; ELECTROCARDIOGRAM; PROGNOSIS; DISEASE; BALLOON;
Keywords:
total occlusion of the left main coronary artery acute myocardial infarction; prognosis; ST elevation in aVR and aVL leads;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Hori, T Niigata Univ, Sch Med, Dept Internal Med 1, 1-754 Asahimachi-dori,Niigata9518510, Japan Niigata Univ 1-754 Asahimachi-dori Niigata Japan 9518510 0, Japan
Citazione:
T. Hori et al., "Factors predicting mortality in patients after myocardial infarction caused by left main coronary artery occlusion - Significance of ST segment elevation in both aVR and aVL leads", JPN HEART J, 41(5), 2000, pp. 571-581

Abstract

Acute left main coronary artery obstruction is rare and most patients in this clinical setting die of sudden death or cardiogenic shock. During the past 8 years, we encountered 13 patients with acute myocardial infarction caused by total occlusion of the left main coronary artery (LMCA-AMI). Thus, we surveyed these patients, and attempted to elucidate helpful predictors related to the prognosis. Six of 13 patients with LMCA-AMI survived. Successful left coronary artery dilatation was achieved in all survivors (group S), and in 5 (71%) non-survivors (group non-S). The age was not different between the two groups. A past history of angina was confirmed in 83% of groupS, while only in 29% of group non-S. Clinical findings such as time of onset of AMI, interval from the AMI onset to admission, elapsed period from the AMI onset to recanalization of LMCA and the value of CK on admission werenot different between the two groups. However, cardiogenic shock occurred in only 1 patient (17%) in group S compared with 5 patients (71%) in group non-S. As emphasized in the literature, good collateral circulation to the left anterior descending artery was observed in 5 patients (83%) in group S, while not observed in group non-S. Electro cardiographically, ST elevation in the aVR lead was very characteristic. This finding was confirmed in 69% of the total patients. Noticeably, 5 out of 6 non-survivors (83%) showed ST elevation not only in leads a VR but also in the aVL lead. In addition to the absence of collateral circulation, this electrocardiographic findings, which obviously indicates the presence of extensive myocardial ischemia in the diseased heart, is a simple and important predictor suggesting a poorprognosis in LMCA-AMI patients.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 18:32:25