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Stroke. 2010 Oct;41(10):2259-64. doi: 10.1161/STROKEAHA.110.588632. Epub 2010 Sep 9.

Is thrombolysis safe in the elderly?: analysis of a national database.

Author information

1
Department of Neurology and Psychiatry, Souers Stroke Institute, St Louis University, St Louis, MO 63104, USA. aalshekh@slu.edu

Abstract

BACKGROUND AND PURPOSE:

Thrombolysis for acute ischemic stroke in the elderly population is seldom administered.

METHODS:

In this study, we evaluated the risks of thrombolysis, including the mortality and intracerebral hemorrhage (ICH) rates in this population. A cohort of patients was identified from the National Inpatient Sample database for the years 2000-2006. Age was categorized in 2 groups, including those between 18 and 80 years and those >80 years. Multivariate logistic regression analysis was used to assess covariates associated with hospital mortality and ICH. A total of 524 997 patients were admitted for acute ischemic stroke; 143 093 (27.2%) were >80 years. A total of 7950 patients were treated with thrombolysis, of which 1659 (20.9%) were >80 years. Elderly patients received less frequent thrombolysis compared with the younger population (1.05% versus 1.72%).

RESULTS:

In the whole cohort, the mortality rate was higher in the older population (12.80% versus 8.99%). For those treated with thrombolysis, the mortality rate and risk of ICH were higher among those >80 years (16.9% versus 11.5%; odds ratio: 1.56 [95% CI: 1.35 to 1.82] and 5.73% versus 4.40%; odds ratio: 1.31 [95% CI: 1.03 to 1.67], respectively). Multivariate logistic regression analysis showed that the presence of ICH (odds ratio: 2.24 [95% CI: 1.89 to 2.65]) was associated with higher mortality rates but not the use of thrombolysis (odds ratio: 1.14 [95% CI: 0.98 to 1.33]).

CONCLUSIONS:

Despite the higher mortality rate in the older population, the use of thrombolysis does not predict death; however, the use of thrombolysis was associated with high risk of ICH.

PMID:
20829516
DOI:
10.1161/STROKEAHA.110.588632
[Indexed for MEDLINE]
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