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KMID : 0363320230440030387
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Journal of Korean Oriental Internal Medicine
2023 Volume.44 No. 3 p.387 ~ p.401
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Effect of Herbal Medicines on Preventing Restenosis After Percutaneous Coronary Intervention: A Systematic Review and Meta-analysis of Randomized Controlled Trials
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Hur Na-Yeon
Ahn Su-Bin
Kim Hong-Jun
Jang In-Soo
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Abstract
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Objective: This study was conducted to investigate the preventive effect of herbal medicines on restenosis after percutaneous coronary intervention (PCI) by reviewing randomized controlled trials (RCTs).
Methods: RCTs were searched for herbal medicine treatment after PCI using eight online databases (PubMed, CNKI, Wanfang, J-STAGE, OASIS, ScienceON, KTKP, and KISS). Studies that confirmed restenosis through coronary angiography at follow-up were selected according to the inclusion and exclusion criteria. The primary outcome was the restenosis rate, and the secondary outcome was the angina recurrence rate. Data were extracted from the final selected studies according to the research methodology and then analyzed with Review Manager 5.4.1. Study quality was assessed using Cochrane’s risk-of-bias (RoB) tool.
Results: Of the 252 papers obtained through the primary search, nine studies that met the selection criteria were finally selected. In these nine studies, herbal medicine combined with western medicine was used for the experimental group, and western medicine treatment was used alone for the control group.
The meta-analysis result revealed that the restenosis rate and angina recurrence rate were significantly lower in the experimental group than in the control group (RR=0.34, 95% CI: 0.22-0.53, p<0.00001, I²=0% and RR=0.47, 95% CI: 0.29-0.78, p=0.004, I²=0%, respectively). Furthermore, the quality of studies assessed by Cochrane’s RoB was low.
Conclusions: This study showed that the combined treatment of herbal medicine and western medicine was effective in preventing restenosis and angina after PCI. As the number of papers included in this study was small, a large number of high-quality clinical studies should be considered in the future.
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KEYWORD
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oronary artery disease, percutaneous coronary intervention, herbal medicine, restenosis, systematic review, meta-analysis
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