Abstract:
BACKGROUND AND AIMS:Generally, immoderate alcohol consumption is associated with variant angina and accepted as one of the risk factors for coronary artery spasm (CAS), but evidence is lacking in this regard. The aim of this study is to evaluate the impact of alcohol consumption and drinking pattern on CAS by acetylcholine (ACH) provocation test and long-term clinical outcomes. METHODS:A total of 5491 patients with typical or atypical chest pain, without significant coronary artery disease, who underwent intracoronary ACH provocation test, were enrolled prospectively, and retrospectively analyzed in this study. They were divided into two groups according to their alcohol drinking status; the current alcohol (CA) drinking group (n = 1792), and non-CA group (n = 3699). To adjust for potential confounders, a propensity score matching (PSM) analysis was performed. The primary endpoint was incidence of CAS, and secondary endpoints were major adverse cardiac events (MACE) and recurrent angina requiring repeat coronary angiography (CAG) at 5 years. RESULTS:After PSM analysis, alcohol consumption was a strong risk factor for CAS. Furthermore, excessive alcohol consumption was correlated with a higher risk for CAS. As compared with the non-CA group, the CA group showed worse angiographic and clinical findings, including higher incidence of CAS (58% vs. 62%, p = 0.016), spontaneous spasm (17% vs. 22%, p = 0.004), multi-vessel spasm (31% vs. 37%, p = 0.009), proximal epicardial spasm (39% vs. 46%, p = 0.002), ischemic electrocardiography changes such as T-inversion (0.4% vs. 1.2%, p < 0.001) and chest pain (42% vs. 46%, p = 0.047) during ACH provocation test. However, the status and pattern of alcohol drinking had no influence on long-term clinical outcomes such as MACE or recurrent angina. CONCLUSIONS:Alcohol consumption is a strong risk factor for CAS, and excessive alcohol consumption was correlated with a higher risk for CAS. Further well-designed studies are needed to confirm the results.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Sohn SM,Choi BG,Choi SY,Byun JK,Mashaly A,Park Y,Jang WY,Kim W,Choi JY,Park EJ,Na JO,Choi CU,Lim HE,Kim EJ,Park CG,Seo HS,Oh DJ,Rha SWdoi
10.1016/j.atherosclerosis.2017.11.032subject
Has Abstractpub_date
2018-01-01 00:00:00pages
163-169eissn
0021-9150issn
1879-1484pii
S0021-9150(17)31417-Xjournal_volume
268pub_type
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