[Analysis of the clinical data of patients with acute coronary syndrome complicated by hemorrhage during hospitalization].

Objective: To investigate the clinical characteristics of patients with acute coronary syndrome suffering hemorrhage during hospitalization.

Methods: The clinical symptoms, diagnostic and therapeutic characteristics and in-hospital outcome of 3807 inpatients who were recruited into SINO-GRACE study in China due to acute coronary syndrome from March, 2001 to December, 2007 were collected. Statistical methods were adopted to compare the differences in clinical data between hemorrhage group and non-hemorrhage group.

Results: Hemorrhage had happened in 57 out of 3807 inpatients with the incidence of 1.50%. Five patients, which accounted for 9.6% of the overall hemorrhage cases, were fatal hemorrhage. Nine patients were intracranial hemorrhage with the incidence of 0.24%. There were 155 deaths among the 3807 patients, with an overall mortality rate of 4.1%. The mortality of hemorrhage accounted for 3.2% in overall mortality. Patients with one of the following factors were more apt to hemorrhage: > 70 years old, previous hemorrhage history, renal failure history, heart failure history and clopidogrel and glycoprotein (GP) IIb/IIIa receptor antagonist administration for coronary artery bypass grafting. Patients who developed hemorrhage might need prolonged hospitalization and were liable to develop heart-related adverse events, including re-infarction and sustained ventricular tachycardia/fibrillation after they were admitted in hospital over 24 hours.

Conclusion: Patients with acute coronary syndrome who underwent coronary artery bypass grafting, with advanced age, previous hemorrhage history, renal failure history, heart failure history or treated with clopidogrel and GP IIb/IIIa receptor antagonist are more vulnerable to hemorrhage.