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Comparison of Clopidogrel Versus Ticagrelor for Percutaneous Coronary Intervention (PCI) Patients Managed with
Barka Sajid1, Zarnab Tufail2, Maria Asim3
1Sindh Medical College, Karachi, Pakistan.
Insights
This meta-analysis found no significant differences in bleeding or stent thrombosis between clopidogrel and ticagrelor in patients undergoing percutaneous coronary intervention (PCI) with therapeutic hypothermia (TH). Further randomized studies are needed to confirm these findings.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Therapeutic hypothermia (TH) use after percutaneous coronary intervention (PCI) raises questions about antiplatelet drug efficacy.
- Clopidogrel and ticagrelor are commonly used post-PCI, but their comparative effectiveness during TH remains debated.
Approach:
- A systematic review and meta-analysis was conducted, searching PubMed, Cochrane Library, and Scopus up to April 2023.
- Included five studies with 245 patients comparing clopidogrel and ticagrelor in PCI patients managed with TH.
- Assessed risk of bias using Newcastle-Ottawa and Cochrane risk of bias tools.
Key Points:
- No significant differences in bleeding risk were observed between clopidogrel and ticagrelor.
- Stent thrombosis rates did not differ significantly between the two antiplatelet agents.
- All-cause mortality showed no significant variation between treatment groups.
Conclusions:
- Current meta-analytic findings do not support claims of altered clopidogrel efficacy in PCI patients undergoing TH.
- The study highlights the need for larger, randomized controlled trials to establish definitive conclusions due to the limited sample size.
Abstract:
Various antiplatelet drugs, such as clopidogrel and ticagrelor, are available on the market for use after percutaneous coronary intervention (PCI). However, the efficacy of such drugs in patients being managed with therapeutic hypothermia (TH) has always been debated. In light of this controversy, this systematic review and meta-analysis was performed to enhance existing literature. Various databases were searched for potentially relevant studies from inception to April 2023, including PubMed, Cochrane Library, and Scopus. The risk of bias was assessed using the Newcastle-Ottawa scale for cohort studies and the Cochrane risk of bias tool for randomized controlled trials. Outcomes of interest included risk of bleeding, stent thrombosis, and all-cause mortality. Five studies were shortlisted for inclusion into the meta-analysis, featuring a total of 245 patients receiving either clopidogrel or ticagrelor. Overall, no significant differences were noted when the use of clopidogrel and ticagrelor was compared in PCI patients being managed with TH. To the best of our knowledge, this is the most comprehensive meta-analysis comparing the outcomes of clopidogrel and ticagrelor in PCI patients being managed with TH. Despite existing studies claiming an altered efficacy of clopidogrel in such conditions, our meta-analytic findings could not prove this relationship. Due to the limited sample size, further comprehensive and randomized studies are encouraged to arrive at a robust conclusion.
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