PMID- 18332238 OWN - NLM STAT- MEDLINE DCOM- 20080715 LR - 20090316 IS - 1538-3687 (Electronic) IS - 0003-9942 (Linking) VI - 65 IP - 5 DP - 2008 May TI - Safety of antiplatelet therapy prior to intravenous thrombolysis in acute ischemic stroke. PG - 607-11 LID - 10.1001/archneur.65.5.noc70077 [doi] AB - BACKGROUND: There is some uncertainty whether prior use of antiplatelet (AP) drugs increases the risk of symptomatic intracerebral hemorrhage (SICH) and influences functional outcome in patients with ischemic stroke treated with intravenous thrombolysis. OBJECTIVE: To assess whether prior use of AP drugs is related to outcome following intravenous tissue plasminogen activator therapy in patients with ischemic stroke. DESIGN, SETTING, AND PATIENTS: A single-center prospective observational cohort study of the relation between prior AP therapy, occurrence of SICH, and functional outcome of consecutive patients with ischemic stroke undergoing intravenous thrombolysis with tissue plasminogen activator in a university hospital between April 1, 2002, and November 30, 2006. MAIN OUTCOME MEASURES: The occurrence of SICH and favorable outcome reflecting independence defined as a modified Rankin Scale score of 2 or lower at 3 months. RESULTS: Of the 301 patients who received intravenous tissue plasminogen activator, 89 used AP drugs prior to thrombolysis. Symptomatic intracerebral hemorrhage occurred in 12 patients (13.5%; 95% confidence interval, 7.8%-22.3%) who had received AP drugs and in 6 patients (2.8%; 95% confidence interval, 1.2%-6.2%) without prior AP therapy (P = .001). Multivariate analysis revealed that prior AP therapy was an independent predictor of SICH (odds ratio, 6.0; 95% confidence interval, 2.0-17.1). Nonetheless, prior AP therapy was independently associated with a favorable outcome (odds ratio, 2.0; 95% confidence interval, 1.0-4.3). CONCLUSION: Despite a higher incidence of SICH, the net benefit of intravenous tissue plasminogen activator therapy for acute ischemic stroke was greater in patients using AP drugs. FAU - Uyttenboogaart, Maarten AU - Uyttenboogaart M AD - Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. m.uyttenboogaart@neuro.umcg.nl FAU - Koch, Marcus W AU - Koch MW FAU - Koopman, Karen AU - Koopman K FAU - Vroomen, Patrick C A J AU - Vroomen PC FAU - De Keyser, Jacques AU - De Keyser J FAU - Luijckx, Gert-Jan AU - Luijckx GJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080310 PL - United States TA - Arch Neurol JT - Archives of neurology JID - 0372436 RN - 0 (Fibrinolytic Agents) RN - 0 (Platelet Aggregation Inhibitors) RN - EC 3.4.21.68 (Tissue Plasminogen Activator) SB - IM CIN - Arch Neurol. 2008 May;65(5):575-6. PMID: 18474730 CIN - Nat Clin Pract Neurol. 2008 Sep;4(9):474-5. PMID: 18665145 MH - Aged MH - Brain Ischemia/*drug therapy/epidemiology/prevention & control MH - Causality MH - Cerebral Hemorrhage/*chemically induced/epidemiology/prevention & control MH - Cohort Studies MH - Comorbidity MH - Data Interpretation, Statistical MH - Drug Synergism MH - Drug Therapy, Combination MH - Female MH - Fibrinolytic Agents/*administration & dosage/adverse effects MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Platelet Aggregation Inhibitors/administration & dosage/*adverse effects MH - Prospective Studies MH - Risk Assessment MH - Stroke/*drug therapy/epidemiology/prevention & control MH - Tissue Plasminogen Activator/administration & dosage/adverse effects MH - Treatment Outcome EDAT- 2008/03/12 09:00 MHDA- 2008/07/17 09:00 CRDT- 2008/03/12 09:00 PHST- 2008/03/12 09:00 [pubmed] PHST- 2008/07/17 09:00 [medline] PHST- 2008/03/12 09:00 [entrez] AID - 65.5.noc70077 [pii] AID - 10.1001/archneur.65.5.noc70077 [doi] PST - ppublish SO - Arch Neurol. 2008 May;65(5):607-11. doi: 10.1001/archneur.65.5.noc70077. Epub 2008 Mar 10.