Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis

Background: Aspirin is almost always used after coronary artery bypass graft (CABG) surgery; however, it is unclear what optimal dose should be prescribed. In this systematic review, we evaluated the effects of high versus low-dose aspirin in patients after CABG. Methods: A comprehensive database se...

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Autores principales: Fares Alahdab, Ruba Zuhri Yafi, Abdelkader Chaar, Ali Alrstom, Muayad Alzuabi, Omar Alhalabi, Somar Hasan, Mahmoud Mallak, Mohamad Luay Jazayerli, Qusay Haydour, Mohamad Alkhouli, Wedad Alfarkh, Mohammad Hassan Murad
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Publicado: Thieme Medical and Scientific Publishers Pvt. Ltd. 2020
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Acceso en línea:https://doaj.org/article/368cda6251b64b37b9f681238f3fba2c
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spelling oai:doaj.org-article:368cda6251b64b37b9f681238f3fba2c2021-12-02T18:42:19ZAspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis2231-07702249-446410.4103/ajm.ajm_17_20https://doaj.org/article/368cda6251b64b37b9f681238f3fba2c2020-10-01T00:00:00Zhttp://www.thieme-connect.de/DOI/DOI?10.4103/ajm.ajm_17_20https://doaj.org/toc/2231-0770https://doaj.org/toc/2249-4464Background: Aspirin is almost always used after coronary artery bypass graft (CABG) surgery; however, it is unclear what optimal dose should be prescribed. In this systematic review, we evaluated the effects of high versus low-dose aspirin in patients after CABG. Methods: A comprehensive database search was conducted in several databases from date of inception until February 2018. There were no language restrictions. We included studies that compared different doses of aspirin in patients that had undergone CABG surgery. We included studies that evaluated patient-important outcomes (mortality, cardiovascular events, and gastrointestinal bleeding); and if not reported, we collected data on the surrogate outcome thromboxane B2 (TXB2). We collected relevant data and performed a meta-analysis. Results: We identified 5903 references, and after two levels of screening by two independent reviewers, we included three randomized controlled trials in the meta-analysis with a total number of 122 participants. Mean age of trial participants was 65.63 years, and 88.68% were male. We planned to analyze all possible clinical outcomes, including mortality, recurrence, and hospitalization. However, no clinical outcomes are reported by the literature. The surrogate biochemical outcome of serum TXB2 was the only outcome reported by the eligible studies. High-dose aspirin (162–325 mg once daily) achieved better suppression of TXB2 than low-dose aspirin (75–100 mg once daily) (mean difference [MD], 2.00ng/mL, 95% confidence interval [CI]: 0.72–3.32; participants = 122; studies = 3; I2 = 0%). Conclusions: We found no clinical trials addressing any of the clinical outcomes of interest. High-dose aspirin was superior to low-dose aspirin in suppressing platelet function, a surrogate outcome. Trials evaluating clinical and patient-important outcomes are needed to better inform medical practice and fill this gap in clinical knowledge.Fares AlahdabRuba Zuhri YafiAbdelkader ChaarAli AlrstomMuayad AlzuabiOmar AlhalabiSomar HasanMahmoud MallakMohamad Luay JazayerliQusay HaydourMohamad AlkhouliWedad AlfarkhMohammad Hassan MuradThieme Medical and Scientific Publishers Pvt. Ltd.articleaspirinatherosclerosiscoronary artery bypass graftmyocardial infarctionreviewsystematic reviewMedicineRENAvicenna Journal of Medicine, Vol 10, Iss 04, Pp 198-207 (2020)
institution DOAJ
collection DOAJ
language EN
topic aspirin
atherosclerosis
coronary artery bypass graft
myocardial infarction
review
systematic review
Medicine
R
spellingShingle aspirin
atherosclerosis
coronary artery bypass graft
myocardial infarction
review
systematic review
Medicine
R
Fares Alahdab
Ruba Zuhri Yafi
Abdelkader Chaar
Ali Alrstom
Muayad Alzuabi
Omar Alhalabi
Somar Hasan
Mahmoud Mallak
Mohamad Luay Jazayerli
Qusay Haydour
Mohamad Alkhouli
Wedad Alfarkh
Mohammad Hassan Murad
Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
description Background: Aspirin is almost always used after coronary artery bypass graft (CABG) surgery; however, it is unclear what optimal dose should be prescribed. In this systematic review, we evaluated the effects of high versus low-dose aspirin in patients after CABG. Methods: A comprehensive database search was conducted in several databases from date of inception until February 2018. There were no language restrictions. We included studies that compared different doses of aspirin in patients that had undergone CABG surgery. We included studies that evaluated patient-important outcomes (mortality, cardiovascular events, and gastrointestinal bleeding); and if not reported, we collected data on the surrogate outcome thromboxane B2 (TXB2). We collected relevant data and performed a meta-analysis. Results: We identified 5903 references, and after two levels of screening by two independent reviewers, we included three randomized controlled trials in the meta-analysis with a total number of 122 participants. Mean age of trial participants was 65.63 years, and 88.68% were male. We planned to analyze all possible clinical outcomes, including mortality, recurrence, and hospitalization. However, no clinical outcomes are reported by the literature. The surrogate biochemical outcome of serum TXB2 was the only outcome reported by the eligible studies. High-dose aspirin (162–325 mg once daily) achieved better suppression of TXB2 than low-dose aspirin (75–100 mg once daily) (mean difference [MD], 2.00ng/mL, 95% confidence interval [CI]: 0.72–3.32; participants = 122; studies = 3; I2 = 0%). Conclusions: We found no clinical trials addressing any of the clinical outcomes of interest. High-dose aspirin was superior to low-dose aspirin in suppressing platelet function, a surrogate outcome. Trials evaluating clinical and patient-important outcomes are needed to better inform medical practice and fill this gap in clinical knowledge.
format article
author Fares Alahdab
Ruba Zuhri Yafi
Abdelkader Chaar
Ali Alrstom
Muayad Alzuabi
Omar Alhalabi
Somar Hasan
Mahmoud Mallak
Mohamad Luay Jazayerli
Qusay Haydour
Mohamad Alkhouli
Wedad Alfarkh
Mohammad Hassan Murad
author_facet Fares Alahdab
Ruba Zuhri Yafi
Abdelkader Chaar
Ali Alrstom
Muayad Alzuabi
Omar Alhalabi
Somar Hasan
Mahmoud Mallak
Mohamad Luay Jazayerli
Qusay Haydour
Mohamad Alkhouli
Wedad Alfarkh
Mohammad Hassan Murad
author_sort Fares Alahdab
title Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
title_short Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
title_full Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
title_fullStr Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
title_full_unstemmed Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
title_sort aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: a systematic review and meta-analysis
publisher Thieme Medical and Scientific Publishers Pvt. Ltd.
publishDate 2020
url https://doaj.org/article/368cda6251b64b37b9f681238f3fba2c
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