Piotr Sobolewski1, Waldemar Brola2, Małgorzata Wiszniewska3, Wiktor Szczuchniak4, Małgorzata Fudala2, Mariusz Domagalski3, Monika Sledzińska-Dźwigał4. 1. Department of Neurology and Stroke Unit, Holy Spirit Specialist Hospital in Sandomierz, Sandomierz, Poland. Electronic address: piotrsobolewski@poczta.onet.pl. 2. Department of Neurology and Stroke Unit, Saint Luke's Hospital in Końskie, Końskie, Poland. 3. Department of Neurology and Stroke Unit, Hospital in Piła, Piła, Poland. 4. Department of Neurology and Stroke Unit, Holy Spirit Specialist Hospital in Sandomierz, Sandomierz, Poland.
Abstract
BACKGROUND: Intravenous thrombolysis (iv-thrombolysis) with the use of rt-PA in patients after recent transient ischemic attack (TIA) is an important clinical problem. The aim of the study was to assess the impact of TIA within 24h preceding acute ischemic stroke (AIS) on the safety and efficacy of iv-thrombolysis. METHODS: We retrospectively evaluated the clinical and demographic data of 400 patients with AIS who were consecutively treated with iv-thrombolysis from September 2006 to May 2011 in three stroke centers. RESULTS: At three-month follow-up, 58.0% of patients were independent (modified Rankin scale; mRS 0-2), 17.8% had died, 17.0% suffered hemorrhagic transformation (HT) and 4.3% experienced symptomatic intracerebral hemorrhage (SICH). There were 29 patients (7.3%) who had a previous ipsilateral TIA within 24h before established stroke. In the TIA subgroup, there was no significant higher percentage of favorable outcome (p=0.07) and higher SICH rate (p=0.15). Multivariate analysis showed the impact of prior TIA within 24h before stroke onset in the presence of SICH (p=0.01), no impact of TIA on unfavorable outcomes after three months (p=0.25) and on the mortality rate within three months (p=0.41). CONCLUSION: TIA within 24h prior to ischemic stroke can portend severe intracerebral bleeding in patients qualified to iv-thrombolysis with the use of rt-PA.
BACKGROUND: Intravenous thrombolysis (iv-thrombolysis) with the use of rt-PA in patients after recent transient ischemic attack (TIA) is an important clinical problem. The aim of the study was to assess the impact of TIA within 24h preceding acute ischemic stroke (AIS) on the safety and efficacy of iv-thrombolysis. METHODS: We retrospectively evaluated the clinical and demographic data of 400 patients with AIS who were consecutively treated with iv-thrombolysis from September 2006 to May 2011 in three stroke centers. RESULTS: At three-month follow-up, 58.0% of patients were independent (modified Rankin scale; mRS 0-2), 17.8% had died, 17.0% suffered hemorrhagic transformation (HT) and 4.3% experienced symptomatic intracerebral hemorrhage (SICH). There were 29 patients (7.3%) who had a previous ipsilateral TIA within 24h before established stroke. In the TIA subgroup, there was no significant higher percentage of favorable outcome (p=0.07) and higher SICH rate (p=0.15). Multivariate analysis showed the impact of prior TIA within 24h before stroke onset in the presence of SICH (p=0.01), no impact of TIA on unfavorable outcomes after three months (p=0.25) and on the mortality rate within three months (p=0.41). CONCLUSION: TIA within 24h prior to ischemic stroke can portend severe intracerebral bleeding in patients qualified to iv-thrombolysis with the use of rt-PA.