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- Title
A Warm Footbath Improves Coronary Flow Reserve in Patients with Mild-to-Moderate Coronary Artery Disease.
- Authors
Yoon, Se-Jung; Park, Jong-Kwan; Oh, Seungjin; Jeon, Dong Woon; Yang, Joo Young; Hong, Suk-Min; Kwak, Min-Sub; Choi, Yoon-Suk; Rim, Se-Joong; Youn, Ho-Joong
- Abstract
Backgrounds: Recent studies have shown that thermal therapy by means of warm waterbaths and sauna has beneficial effects in chronic heart failure. However, a comprehensive investigation of the hemodynamic effects of thermal vasodilation on coronary arteries has not been previously undertaken. In this study, we studied the effect of a warm footbath (WFB) on coronary arteries in patients with coronary artery disease (CAD), as well as any adverse effect. Methods: We studied 21 patients (33.3% men, mean age 60.8 ± 13.5 years) with CAD. Coronary flow Doppler examination of the left anterior descending coronary artery and coronary flow reserve (CFR) were performed and measured using adenosine before and after a WFB. Results: Systolic and diastolic blood pressure and heart rate did not change with the WFB. Mean velocity of diastolic coronary flow significantly increased (diastolic mean flow velocity: 18.3 ± 7.1 cm/sec initial, 21.5 ± 8.0 cm/sec follow-up, P = 0.002) and CFR significantly improved (1.6 ± 0.4 vs. 2.2 ± 0.5, P < 0.001) after WFB. The WFB was well accepted and no relevant adverse effects were observed. The change of CFR after WFB correlated well with diastolic function (E', r = 0.51, P = 0.031; E/E', r =-0.675, P = 0.002). Conclusions: A WFB significantly improved CFR without any adverse effects in patients with mild-to-moderate CAD and can be applied with little risk of a coronary artery event if appropriately performed. (Echocardiography 2011;28:1119-1124)
- Subjects
CORONARY heart disease treatment; THERMOTHERAPY; ADENOSINES; ANALYSIS of variance; BATHS; BLOOD flow measurement; VASODILATION; CORONARY arteries; CORONARY disease; DOPPLER echocardiography; HEART blood-vessels; HEART radiography; HEMODYNAMICS; T-test (Statistics); DATA analysis software
- Publication
Echocardiography, 2011, Vol 28, Issue 10, p1119
- ISSN
0742-2822
- Publication type
Article
- DOI
10.1111/j.1540-8175.2011.01493.x