Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months

Background. The efficacy of alteplase in acute ischaemic stroke (AIS) is highly time dependent. Hence, alteplase is administered as soon as possible with a bolus followed by an infusion. Delays between bolus and infusion may occur, but the extent of these delays and the impact on outcome are unclear...

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Main Authors: Paul Acheampong, Margaret T. May, Gary A. Ford, Anand K. Dixit
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Stroke Research and Treatment
Online Access:http://dx.doi.org/10.1155/2014/358640
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author Paul Acheampong
Margaret T. May
Gary A. Ford
Anand K. Dixit
author_facet Paul Acheampong
Margaret T. May
Gary A. Ford
Anand K. Dixit
author_sort Paul Acheampong
collection DOAJ
description Background. The efficacy of alteplase in acute ischaemic stroke (AIS) is highly time dependent. Hence, alteplase is administered as soon as possible with a bolus followed by an infusion. Delays between bolus and infusion may occur, but the extent of these delays and the impact on outcome are unclear. Aims. We investigated the extent of bolus-infusion delays and the relationship between delays and stroke outcome. Method. We reviewed medical records of 276 patients who received alteplase for AIS at our centre between April, 2008, and June, 2013. Complete demographic and clinical data including 3-month modified Rankin Score (mRS) from 229 patients were analysed comparing delays of 0–8 and >8 minutes. Results. Overall mean (SD) bolus-infusion delay was 9 (7) minutes. Baseline characteristics were similar apart from more severe strokes in delays >8 minutes. Three-month outcomes were not significantly different although delays >8 minutes had lower functional independence rate (mRS 0-1: 23.1% versus 28.1%; adjusted OR 1.2 (95% CI 0.6 to 2.4, P=0.68)) and higher mortality rate (18% versus 11%, OR 1.0, 95% CI 0.6 to 1.7, P=0.95). Conclusions. In this single centre series, bolus-infusion delays of alteplase in AIS were common and no effect of bolus-infusion delays on independence and mortality was found.
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spelling doaj-art-a8f2aec34b5847be9ba319672a7fe90d2025-02-03T05:51:47ZengWileyStroke Research and Treatment2090-81052042-00562014-01-01201410.1155/2014/358640358640Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 MonthsPaul Acheampong0Margaret T. May1Gary A. Ford2Anand K. Dixit3Acute Stroke Service, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UKSchool of Social and Community Medicine, University of Bristol, Bristol BS8 2PS, UKAcute Stroke Service, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UKAcute Stroke Service, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UKBackground. The efficacy of alteplase in acute ischaemic stroke (AIS) is highly time dependent. Hence, alteplase is administered as soon as possible with a bolus followed by an infusion. Delays between bolus and infusion may occur, but the extent of these delays and the impact on outcome are unclear. Aims. We investigated the extent of bolus-infusion delays and the relationship between delays and stroke outcome. Method. We reviewed medical records of 276 patients who received alteplase for AIS at our centre between April, 2008, and June, 2013. Complete demographic and clinical data including 3-month modified Rankin Score (mRS) from 229 patients were analysed comparing delays of 0–8 and >8 minutes. Results. Overall mean (SD) bolus-infusion delay was 9 (7) minutes. Baseline characteristics were similar apart from more severe strokes in delays >8 minutes. Three-month outcomes were not significantly different although delays >8 minutes had lower functional independence rate (mRS 0-1: 23.1% versus 28.1%; adjusted OR 1.2 (95% CI 0.6 to 2.4, P=0.68)) and higher mortality rate (18% versus 11%, OR 1.0, 95% CI 0.6 to 1.7, P=0.95). Conclusions. In this single centre series, bolus-infusion delays of alteplase in AIS were common and no effect of bolus-infusion delays on independence and mortality was found.http://dx.doi.org/10.1155/2014/358640
spellingShingle Paul Acheampong
Margaret T. May
Gary A. Ford
Anand K. Dixit
Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
Stroke Research and Treatment
title Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
title_full Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
title_fullStr Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
title_full_unstemmed Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
title_short Bolus-Infusion Delays of Alteplase during Thrombolysis in Acute Ischaemic Stroke and Functional Outcome at 3 Months
title_sort bolus infusion delays of alteplase during thrombolysis in acute ischaemic stroke and functional outcome at 3 months
url http://dx.doi.org/10.1155/2014/358640
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AT garyaford bolusinfusiondelaysofalteplaseduringthrombolysisinacuteischaemicstrokeandfunctionaloutcomeat3months
AT anandkdixit bolusinfusiondelaysofalteplaseduringthrombolysisinacuteischaemicstrokeandfunctionaloutcomeat3months