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스트레스 유발성 심근증 환자들의 원내 사망과 좌심실 기능 회복의 예측인자
김소연 ( So Yeon Kim ),김장영 ( Jang Young Kim ),박용현 ( Yong Hyun Park ),홍경순 ( Kyung Soon Hong ),조경임 ( Kyoung Im Cho ),조현수 ( Hyun Su Jo ),홍그루 ( Gue Ru Hong ),손창우 ( Chang Woo Sohn ),손장원 ( Jang Won Sohn ),윤준철 대한내과학회 2011 대한내과학회지 Vol.81 No.1
Background/Aims: The reported frequency of stress-induced cardiomyopathy (SCMP, Takotsubo cardiomyopathy) is increasing; however, there are no data regarding predictors of in-hospital mortality and the recovery of left ventricular (LV) systolic function in patients with SCMP. Therefore, in this study, we sought to identify clinical predictors of in-hospital mortality and of the recovery of LV dysfunction in Korean patients with SCMP. Methods: From November 2004 to November 2010, 155 patients who fulfilled the clinical diagnostic criteria of the Mayo clinic for SCMP were enrolled retrospectively from eight medical centers in Korea. We checked in-hospital deaths and compared the LVejection fraction (LVEF) and wall-motion score index (WMSI) upon enrollment for each patient with that after 1 week using echocardiograms. A total of 55 continuous variables and 52 nominal variables were analyzed to find variables associated with in-hospital mortality and the recovery of LV dysfunction. All significant variables were entered into a logistic regression analysis. Results: The mean age of the patients was 64±15 years; 118 (76.1%) patients were female. The in-hospital mortality rate was 5.2% (n=8). An elevated initial platelet count was identified as a predictor of in-hospital mortality (odds ratio [95% CI]: 0.99 [0.99-1.00]). There were no predictors of the recovery of LVEF. Predictors of the recovery of WMSI were an absence of arrhythmic events (odds ratio [95% CI]: 22.89 [1.98-265.34]) and an elevated initial LV end-systolic diameter (odds ratio [95% CI]: 0.86 [0.74-1.00]). Conclusions: An initial absence of arrhythmic events and elevated LV end-diastolic pressure in patients with SCMP may be predictors of the timely recovery of LV dysfunction. (Korean J Med 2011;81:64-72)