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Fujimoto Y, Sakakura K, Jinnouchi H, Taniguchi Y, Tsukui T, Watanabe Y, Yamamoto K, Seguchi M, Wada H, Fujita H. Comparison of Outcomes of Patients With Acute Myocardial Infarction Between Chronic Total Occlusion Versus 90-99% Stenosis in Non-Culprit Arteries. Am J Cardiol 2022; 170:17-24. [PMID: 35193767 DOI: 10.1016/j.amjcard.2022.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/16/2022] [Accepted: 01/21/2022] [Indexed: 11/19/2022]
Abstract
Patients with acute myocardial infarction (AMI) with chronic total occlusion (CTO) in nonculprit arteries had worse prognosis than patients with AMI without CTO in nonculprit arteries. However, the reason was not clearly explained. This retrospective study aimed to compare the clinical outcomes between patients with AMI with CTO versus those with severe stenosis (90% to 99% stenosis) in nonculprit arteries, which would help to elucidate the role of CTO in nonculprit arteries. We included 643 patients with AMI and divided those into the CTO group (n = 188) and 90% to 99% stenosis group (n = 455). The primary end point was the major adverse cardiovascular events (MACE) defined as the composite of all-cause death, nonfatal myocardial infarction, and readmission for heart failure. During the median follow-up duration of 431 days (Q1:178 days to Q3:950 days), a total of 189 MACE was observed. The Kaplan-Meier curves showed that MACE was more frequently observed in the CTO group than in the 90% to 99% stenosis group (p <0.001). The multivariate Cox hazard analysis revealed that CTO in nonculprit arteries (vs 90% to 99% stenosis) was significantly associated with MACE (hazard ratio 1.410, 95% confidence interval 1.042 to 1.907; p = 0.026) after controlling known confounding factors. In conclusion, patients with AMI with CTO in nonculprit arteries had worse clinical outcomes than those with 90% to 99% stenosis in nonculprit arteries. Patients with AMI with CTO could be recognized as a high-risk group rather than those with 90% to 99% stenosis and should be carefully managed to prevent cardiovascular events.
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Affiliation(s)
- Yudai Fujimoto
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kenichi Sakakura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
| | - Hiroyuki Jinnouchi
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yousuke Taniguchi
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Takunori Tsukui
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yusuke Watanabe
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kei Yamamoto
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Masaru Seguchi
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hiroshi Wada
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hideo Fujita
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Tsai CT, Huang WC, Lu YW, Teng HI, Huang SS, Tsai YL, Lee WL, Lu TM. Obesity paradox in patients with chronic total occlusion of coronary artery. Eur J Clin Invest 2022; 52:e13698. [PMID: 34687216 DOI: 10.1111/eci.13698] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Obesity is associated with metabolic syndrome which increases further risk of coronary artery disease and adverse cardiovascular events. Impact of body mass index (BMI) on long-term outcome in patients with coronary chronic total occlusion (CTO) is less clear. METHOD AND RESULTS From January 2005 to November 2020, a total of 1301 patients with coronary angiographic confirmed CTO were enrolled in our study. Patients were divided into two groups: low BMI group: 18-24.99 kg/m2 and high BMI group ≥25 kg/m2 . Clinical outcomes were 3-year all-cause mortality, 3-year cardiovascular mortality and 3-year non-fatal myocardial infarct. During the 3-year follow-up period, all-cause mortality was significantly higher in patients with low BMI group compared to those in high BMI groups (14% vs. 6%, p = .0001). Kaplan-Meier analysis showed patients with high BMI groups had significant better survival compared with those in low BMI group (p = .0001). In multivariate analysis, higher BMI was independently associated with decreased risk of 3-year all-cause mortality (Hazard ratio [HR]: 0.534; 95% confidence interval [CI]: 0.349-0.819, p = .004) after controlling for age, renal function, prior history of stroke, coronary artery bypass graft, co-morbidities with peripheral arterial disease, heart failure and revascularization status for CTO. In propensity-matched multivariate analysis, high BMI remained a significant predictor of 3-year all-cause mortality (HR, 0.525; 95% CI, 0.346-0.795, p = .002). CONCLUSION Higher BMI was associated with better long-term outcome in patients with coronary CTO.
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Affiliation(s)
- Chuan-Tsai Tsai
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Wei-Chieh Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Ya-Wen Lu
- Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Division of Interventional Cardiology, Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hsin-I Teng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Lin Tsai
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Wen-Lieng Lee
- Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Division of Interventional Cardiology, Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Tse-Min Lu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
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