Journal
STROKE
Volume 38, Issue 6, Pages 1899-1904Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/STROKEAHA.106.481465
Keywords
brain ischemia; mortality; patient readmission
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Funding
- NINDS NIH HHS [R01 NS043322-01] Funding Source: Medline
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Background and Purpose - Stroke is a leading cause of hospital admission among the elderly. Although studies have examined subsequent vascular outcomes, limited data are available regarding the full burden of hospital readmission after stroke. We sought to determine the rates of hospital readmissions and mortality and the reasons for readmission over a 5- year period after stroke. Methods - This retrospective observational cohort study included Medicare beneficiaries aged > 65 years who survived hospitalization for an acute ischemic stroke ( International Classification of Diseases, Ninth Revision, Clinical Modification codes 434 and 436) and who were discharged from Connecticut acute care hospitals in 1995. This population was followed from discharge in 1995 through 2000 using part A Medicare claims and Social Security Administration mortality data. The primary outcome was hospital readmission and mortality and readmission diagnosis. Results - Among 2603 patients discharged alive, more than half had died or been readmitted at least once during the first year after discharge ( 1388/ 2603, 53.3%), and < 15% survived admission- free for 5 years ( 372/ 2603, 14.3%). The reasons for hospital readmission varied over time, with stroke remaining a leading cause for readmission ( 3.9 to 6.1% of patients annually). Acute myocardial infarction accounted for a comparable number of readmissions ( 4.2 to 6.0% of patients annually). The most common diagnostic category associated with readmission, however, was pneumonia or respiratory illnesses, with an annual readmission rate between 8.2% and 9.0% throughout the first 5 years after stroke. Conclusions - Few stroke patients survive for 5 years without a hospital readmission. Between the acute care setting and readmission to the hospital, a window of opportunity may exist for interventions, beyond prevention of recurrent vascular events alone, to reduce the huge public health burden of poststroke morbidity.
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