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A warm footbath improves coronary flow reserve in patients with mild-to-moderate coronary artery disease

Authors
 Se-Jung Yoon  ;  Jong-Kwan Park  ;  Seungjin Oh  ;  Dong Woon Jeon  ;  Joo Young Yang  ;  Suk-Min Hong  ;  Min-Sub Kwak  ;  Yoon-Suk Choi  ;  Se-Joong Rim  ;  Ho-Joong Youn 
Citation
 ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES, Vol.28(10) : 1119-1124, 2011 
Journal Title
ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES
ISSN
 0742-2822 
Issue Date
2011
MeSH
Baths* ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/physiopathology* ; Coronary Artery Disease/rehabilitation* ; Female ; Foot/physiopathology* ; Fractional Flow Reserve, Myocardial* ; Humans ; Hyperthermia, Induced/methods* ; Male ; Middle Aged ; Treatment Outcome ; Ultrasonography
Keywords
coronary flow reserve ; warm footbath ; coronary artery disease ; echocardiography
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.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/j.1540-8175.2011.01493.x/abstract
DOI
10.1111/j.1540-8175.2011.01493.x
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Rim, Se Joong(임세중) ORCID logo https://orcid.org/0000-0002-7631-5581
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/94573
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