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2 "Bariatric surgery"
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Original article
Postoperative effects of bariatric surgery on heart rate recovery and heart rate variability
Han Su Park, Kyungwon Seo, Hyeon Soo Kim, Sung il Im, Bong Joon Kim, Bu Kyung Kim, Jung Ho Heo
Kosin Med J. 2022;37(2):119-126.   Published online June 27, 2022
DOI: https://doi.org/10.7180/kmj.22.020
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Background
Several studies have reported associations between obesity and autonomic dysfunction. However, little research has investigated the effect of bariatric surgery on heart rate recovery (HRR) in the treadmill test and heart rate variability (HRV) in 24-hour Holter monitoring. We investigated the effects of bariatric surgery on HRR and HRV, which are parameters related to autonomic dysfunction.
Methods
We retrospectively investigated patients who underwent bariatric surgery in 2019. The treadmill test, 24-hour Holter monitoring, and echocardiography were performed before and 6 months after surgery. We compared the changes in HRR in the treadmill test and HRV parameters such as the time domain and spectral domain in 24-hour Holter monitoring before and after surgery.
Results
Of the 40 patients who underwent bariatric surgery, 25 patients had the treadmill test or 24-hour Holter monitoring both before and after surgery. Body weight and body mass index significantly decreased after surgery (112.86±24.37 kg vs. 89.10±20.26 kg, p<0.001; 39.22±5.69 kg/m2 vs. 31.00±5.09 kg/m2, p<0.001, respectively). HRR significantly increased (n=23; 43.00±20.97 vs. 64.29±18.49, p=0.001). The time domain of HRV parameters increased (n=21; standard deviation of the N-N interval 123.57±28.05 vs. 152.57±39.49, p=0.002 and mean N-N interval 791.57±88.84 vs. 869.05±126.31, p=0.002).
Conclusions
Our data showed that HRR after exercise and HRV during 24-hour Holter monitoring improved after weight reduction with bariatric surgery through improved cardiac autonomic function.
Case report
A Case of Bariatric Surgery during Gastric Cancer Operation
Kyung Hyun Choi, Ki Young Yoon, Hyung Whan Moon, Yeon Myung Shin, Kyung Won Seo, Su Mi Ahn, Yun Mi Song, Jung Hee Seok, Kung Yeon Jeong, Eun Ha Lee
Kosin Med J. 2008;23(3):99-101.   Published online September 30, 2008
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KMJ : Kosin Medical Journal