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Trends in the incidence and outcomes of in-hospital stroke complicating acute myocardial infarction



Trends in the incidence and outcomes of in-hospital stroke complicating acute myocardial infarction



American Journal of Cardiology 92(4): 383-388, August 15



Although stroke is an infrequent hospital complication of acute myocardial infarction (AMI), limited contemporary data are available about the incidence and death rates associated with this serious complication. The objective of this population-based study was to examine temporal trends (1986 to 1999) in the risk of stroke and associated hospital outcomes in patients hospitalized with AMI. This was an observational study of 6,325 metropolitan Worcester, Massachusetts, residents hospitalized with validated AMI and without prior stroke at all greater Worcester hospitals during 8 one-year periods between 1986 and 1999. Overall, 1.5% of patients (n = 92) with confirmed AMI developed an acute stroke during their index hospitalization. Decreases, followed by increases, in the risk of acute stroke were observed between 1986 and 1999. The highest risk for stroke was observed in the most recent study year of 1999 (3.0%). Several demographic, medical history, and clinical characteristics were associated with an increased risk of stroke overall and separately in younger and older patients hospitalized with AMI. Patients developing an acute stroke had a significantly increased risk of dying during hospitalization even after controlling for other factors of prognostic importance (adjusted odds ratio 4.26, 95% confidence interval 2.49 to 7.31). The results of this community-wide study provide insights into recent trends in the development of acute stroke after AMI and into the profile of high-risk patients.

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Accession: 035985593

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