JOURNAL ARTICLE

Effect of myocardial protection of intracoronary adenosine and nicorandil injection in patients undergoing non-urgent percutaneous coronary intervention: a randomized controlled trial

Seung-Ju Kim, Weon Kim, Jong-Shin Woo, Sang-Jin Ha, Won-Yu Kang, Sun-Ho Hwang, Dong-Gu Kang, Seung-Uk Lee, Sang-Ki Cho, Jeong-Soo Im, Wan Kim
International Journal of Cardiology 2012 June 28, 158 (1): 88-92
21256606

BACKGROUND: Several studies have demonstrated that adenosine and nicorandil protect the myocardium against angioplasty-related myocardial injury. We conducted a prospective study to investigate the myocardial protective effects of combination therapy with intracoronary adenosine and nicorandil.

METHODS: We enrolled 213 consecutive patients with stable or unstable angina who were scheduled for non-urgent PCI for de-novo coronary lesions. Patients were randomized into group I (control saline, n=55), group II (adenosine 50 μg, n=54), group III (nicorandil 4 mg, n=54), or group IV (adenosine-nicorandil combination, n=50). Serial assessments of CK-MB were used to assess myocardial necrosis before and after PCI. The primary endpoint was the incidence of myocardial necrosis (elevation of CK-MB), and the secondary endpoints were the changes in serum CK-MB and cTnI levels and the incidence of post-procedural myocardial infarction (MI).

RESULTS: No significant differences were observed among the four groups with regard to baseline or angiographic characteristics. No major adverse events related to adenosine and nicorandil were observed. There were no significant differences in the incidence of post-procedural myocardial necrosis among the four groups (10.9, 14.8, 14.8, and 14.0%, respectively, p=0.9). There were no significant differences in the incidence of post-procedural MI among groups (p=0.6). In multivariate regression analysis, multivessel stenting, median stent length, and the presence of a compromised side branch were independent predictors of myonecrosis.

CONCLUSIONS: Pretreatment with intracoronary adenosine, nicorandil, or the combination of the two drugs did not reduce the incidences of myocardial necrosis or MI after non-urgent PCI in patients with low-risk angina pectoris.

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