Electrocardiographic prediction of short-term prognosis in patients with acute myocardial infarction associated with the left main coronary artery.
OBJECTIVE
The purpose of this study was to assess the usefulness of electrocardiogram on admission to predict short-term prognosis in patients with acute myocardial infarction (AMI) associated with left main coronary artery (LMCA).


METHODS
Electrocardiogram was obtained on admission in 41 patients with AMI associated with LMCA who underwent reperfusion therapy. Electrocardiographic findings were compared between nonsurvivors and survivors.


RESULTS
There were 24 nonsurvivors and 17 survivors during 30-day follow-up. Nonsurvivors had ST-segment elevation in both leads aVR and aVL (54% vs 18%, P < .05), left anterior fascicular block (83% vs 41%, P < .05), and right bundle-branch block (54% vs 18%, P < .05) more frequently, and ST-segment depression in lead V(5) (17% vs 59%, P < .05) less frequently than survivors among patients with AMI associated with LMCA.


CONCLUSIONS
Our data suggested that electrocardiogram on admission might be useful to predict short-term prognosis in patients with AMI associated with LMCA.
Kurisu
Satoshi
S
Department of Cardiology, Hiroshima City Hospital, Hiroshima, Japan. skurisu@nifty.com
Inoue
Ichiro
I
Kawagoe
Takuji
T
Ishihara
Masaharu
M
Shimatani
Yuji
Y
Nakama
Yasuharu
Y
Maruhashi
Tatsuya
T
Kagawa
Eisuke
E
Dai
Kazuoki
K
Matsushita
Junichi
J
Ikenaga
Hiroki
H
D000328:Adult; D000368:Aged; D015897:Comorbidity; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000401:mortality*; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000401:mortality*; D017063:Outcome Assessment, Health Care / Q000379:methods*; D011379:Prognosis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016019:Survival Analysis; D015996:Survival Rate