http://www.ncbi.nlm.nih.gov/pubmed/26243232
Kim BJ1, Han MK1, Park TH1, Park SS1, Lee KB1, Lee BC1, Yu KH1, Oh MS1, Cha JK1, Kim DH1, Lee J1, Lee SJ1, Ko Y1, Park JM1, Kang K1, Cho YJ1, Hong KS1, Kim JT1, Choi JC1, Kim DE1, Shin DI1, Kim WJ1, Lee J1, Lee JS1, Yoon BW1, Gorelick PB1, Bae HJ1.
Erratum in
- Correction. [Stroke. 2015]
Abstract
BACKGROUND AND PURPOSE:
The low-dose (0.6 mg/kg) alteplase strategy to treat acute ischemic stroke patients became widespread in East Asian countries, without rigorous testing against standard-dose (0.9 mg/kg) alteplase treatment. Our aim was to investigate the comparative effectiveness and safety of the low-dose versus standard-dose intravenous alteplase strategy.METHODS:
A total of 1526 acute ischemic stroke patients who qualified for intravenous alteplase and treated within 4.5 hours were identified from a prospective, multicenter, and nationwide stroke registry database. Primary outcomes were a modified Rankin scale score of 0 to 1 at 3 months after stroke and occurrence of symptomatic hemorrhagic transformation. Inverse probability of low-dose alteplase weighting by propensity scores was used to remove baseline imbalances between the 2 groups, and variation among centers were also accounted using generalized linear mixed models with a random intercept.RESULTS:
Low-dose intravenous alteplase was given to 450 patients (29.5%) and standard-dose intravenous alteplase to 1076 patients (70.5%). Low-dose alteplase treatment was comparable to standard-dose therapy according to the following adjusted outcomes and odds ratios (95% confidence intervals): modified Rankin scale score 0 to 1 at 3 months and 0.95 (0.68-1.32); modified Rankin scale 0 to 2 at 3 months and 0.84 (0.62-1.15); symptomatic hemorrhagic transformation and 1.05 (0.65-1.70); and 3-month mortality and 0.54 (0.35-0.83). The associations were unchanged when the analysis was limited to those without endovascular recanalization.CONCLUSIONS:
The low-dose alteplase strategy was comparable to the standard-dose treatment in terms of the effectiveness and safety.© 2015 American Heart Association, Inc.
KEYWORDS:
acute ischemic stroke; hemorrhage; low-dose tPA; thrombolysis; tissue-type plasminogen activator- PMID:
- 26243232
- DOI:
- 10.1161/STROKEAHA.115.010180
- [PubMed - indexed for MEDLINE]
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