title: Comparison of long-term mortality of acute ST-segment elevation myocardial infarction and non-ST-segment elevation acute coronary syndrome patients after percutaneous coronary intervention.
abstract: OBJECTIVE
  This study is to compare the short-term and long-term mortality in patients with ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation acute coronary syndrome (NSTE-ACS) after percutaneous coronary intervention (PCI).
  
  
  RESULTS
  A total of 266 STEMI patients and 140 NSTE-ACS patients received PCI. Patients were followed up by telephone or at medical record or case statistics center and were followed up for 4 years. Descriptive statistics and multivariate survival analyses were employed to compare the mortality in STEMI and NSTE-ACS. All statistical analyses were performed by SPSS19.0 software package. NSTE-ACS patients had significantly higher clinical and angiographic risk profiles at baseline. During the 4-year follow-up, all-cause mortality in STEMI was significantly higher than that in NSTE-ACS after coronary stent placement (HR 1.496, 95% CI 1.019-2.197). In a landmark analysis no difference was seen in all-cause mortality for both STEMI and NSTE-ACS between 6 month and 4 years of follow-up (HR 1.173, 95% CI 0.758-1.813).
  
  
  CONCLUSIONS
  Patients with STEMI have a worse long-term prognosis compared to patients with NSTE-ACS after PCI, due to higher short-term mortality. However, NSTE-ACS patients have a worse long-term survival after 6 months.
authors: Beijing Shijitan Hospital, Capital Medical University Beijing, China ; Beijing Anzhen Hospital, Capital Medical University Beijing, China.
authors: Lihui
authors: L
authors: Ren
authors: Beijing Shijitan Hospital, Capital Medical University Beijing, China.
authors: Huiming
authors: H
authors: Ye
authors: Beijing Shijitan Hospital, Capital Medical University Beijing, China.
authors: Ping
authors: P
authors: Wang
authors: Beijing Anzhen Hospital, Capital Medical University Beijing, China.
authors: Yuxia
authors: Y
authors: Cui
authors: Beijing Anzhen Hospital, Capital Medical University Beijing, China.
authors: Shichang
authors: S
authors: Cao
authors: Beijing Anzhen Hospital, Capital Medical University Beijing, China.
authors: Shuzheng
authors: S
authors: Lv
keywords: Coronary stent placement; long-term prognosis; long-term survival; mortality