Long-Term Clinical Outcomes of Medical Therapy for Coronary Chronic Total Occlusions in Elderly Patients (≥75 Years)

Background:Limited data are available on the clinical outcomes of medical therapy (MT) compared with revascularization in elderly patients with coronary chronic total occlusion (CTO).Methods and Results:Between March 2003 and February 2012, we retrospectively analyzed 311 patients aged ≥75 years in...

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Published inCirculation Journal Vol. 79; no. 8; pp. 1780 - 1786
Main Authors Gwon, Hyeon-Cheol, Choi, Seung-Hyuk, Song, Young Bin, Kim, Wook Sung, Yang, Jeong Hoon, Lee, Young Tak, Lee, Seung Hwa, Hahn, Joo-Yong, Choi, Jin-Ho
Format Journal Article
LanguageEnglish
Published Japan The Japanese Circulation Society 2015
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ISSN1346-9843
1347-4820
1347-4820
DOI10.1253/circj.CJ-15-0041

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Summary:Background:Limited data are available on the clinical outcomes of medical therapy (MT) compared with revascularization in elderly patients with coronary chronic total occlusion (CTO).Methods and Results:Between March 2003 and February 2012, we retrospectively analyzed 311 patients aged ≥75 years in the Samsung Medical Center CTO registry. Among these, 153 patients were treated with MT and 158 patients with revascularization by intervention or surgery. Inverse probability of treatment weighting (IPTW) and propensity score-matching were performed. The primary outcome was cardiac death during follow-up. Median follow-up duration was 34 (interquartile range: 15–58) months. Overall, patients in the MT group were high-risk subjects. Cardiac death of 30 patients (19.6%) occurred in the MT group vs. 17 patients (10.8%) in revascularization group (P=0.027). In the multivariate analysis, there was no significant difference between groups in the rate of cardiac death (hazard ratio [HR], 1.67; 95% confidence interval [CI], 0.86–3.24, P=0.13). After adjustment with IPTW, MT showed comparable risk of cardiac death with revascularization therapy (HR, 1.26; 95% CI, 0.71–2.21, P=0.43). In the propensity score-matched population, there was no significant difference in the rate of cardiac death between the MT and revascularization groups (HR, 1.52; 95% CI, 0.76–3.07, P=0.24).Conclusions:In the treatment of CTO in elderly patients, MT alone did not increase the risk of long-term cardiac death when compared with aggressive revascularization treatment. (Circ J 2015; 79: 1780–1786)
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ISSN:1346-9843
1347-4820
1347-4820
DOI:10.1253/circj.CJ-15-0041