In:
Journal of Interventional Cardiology, Wiley, Vol. 27, No. 3 ( 2014-06), p. 225-232
Abstract:
To determine the impact of coronary collaterals in stable angina . Background Whether spontaneously visible coronary collaterals are associated with long‐term clinical outcomes in stable angina remains unclear . Methods We prospectively enrolled patients with stable angina referred for coronary angiography and followed them clinically for 1 year . Results A total of 1,134 consecutive patients were enrolled, and of these, 550 had at least single‐vessel coronary artery disease (CAD) and were included. Patients with collaterals had more congestive heart failure (16% vs. 9%, P = 0.023), peripheral vascular disease (22% vs. 15%, P = 0.044), and 2‐vessel (36% vs. 26%) and 3‐vessel (28% vs. 10%) CAD compared to those without collaterals (P 〈 0.001). Patients with collaterals were less likely to undergo percutaneous intervention at the time of the index angiogram (32% vs. 61%, P 〈 0.001). At 1 year, there were no differences in angina (HR 0.74, 95% CI 0.50–1.10; P = 0.141), myocardial infarction (MI) (HR 1.22, 95% CI 0.46–3.21; P = 0.691), revascularization (HR 0.84, 95% CI 0.55–1.30; P = 0.431), death (HR 1.83, 95% CI 0.63–5.31; P = 0.269), or the combined end‐point of death, MI, and revascularization (HR 0.87, 95% CI 0.61–1.24; P = 0.426) between patients with and without collaterals. When analyzed according to collateral grade, patients with Rentrop grade 1 had less angina (HR 0.48, 95% CI 0.26–0.89; P = 0.019) . Conclusions At 1 year, there was no difference in adverse events between patients with or without collaterals. The presence of Rentrop grade 1 collaterals, however, was associated with significantly less angina . (J Interven Cardiol 2014;27:225–232)
Type of Medium:
Online Resource
ISSN:
0896-4327
,
1540-8183
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
2103585-4
Permalink