Outcome of patients with normal and decreased heart rate variability after coronary artery bypass grafting surgery

International Journal of Cardiology
Nenad LakusicFranjo Baborski

Abstract

Previous studies have shown that after coronary artery bypass grafting (CABG), heart rate variability (HRV) becomes decreased, even more significantly than in patients after myocardial infarction (MI). According to some reports, unlike in patients after MI, decreased postoperative HRV does not increase mortality in CABG patients. The aim of this study was to compare differences in mortality rate in CABG patients with normal vs. decreased postoperative HRV. This study included 206 consecutive patients who underwent CABG. During stationary rehabilitation, 24-hours Holter ECG was performed on all the patients, and HRV was analyzed from its recordings. After leaving cardiac rehabilitation, all patients were contacted in writing to provide data on their health in the follow-up period. In the analysis of survival rate depending on HRV findings log-rank analysis and Kaplan-Meier method were used. Seventy four CABG patients (36%) had SDNN <93ms while 132 patients (64%) had normal overall HRV (SDNN≥93ms). The average time of follow-up period was 3.0±1.8years. In the follow up period 16 (7.8%) adverse coronary events were recorded. Out of the 16 CABG patients, 13 patients had decreased HRV and 3 had normal HRV (p=0.001). Contrary to prev...Continue Reading

References

Apr 1, 1994·The American Journal of Cardiology·S VaishnavA D Timmis
Mar 18, 1999·The American Journal of Cardiology·C D KuoJ H Wang
Sep 25, 2004·Canadian Journal of Physiology and Pharmacology·C Ann BrownJoel Parlow
Jan 28, 2005·Journal of Cardiovascular Electrophysiology·Phyllis K SteinUNKNOWN Cast Investigators
May 20, 2006·Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [and] German Diabetes Association·D ZieglerUNKNOWN KORA Study Group

❮ Previous
Next ❯

Citations

Sep 4, 2014·International Journal of Cardiology·Jus KselaJurij Matija Kalisnik
Jun 27, 2015·International Journal of Cardiology·Leonida CompostellaFabio Bellotto
Mar 29, 2014·Clinical Physiology and Functional Imaging·Camila Bianca Falasco PantoniAudrey Borghi-Silva
Jan 30, 2015·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·Jin-Ming WuFeipei Lai
Feb 5, 2014·International Journal of Cardiology·Leonida CompostellaFabio Bellotto
Jan 21, 2017·Liver International : Official Journal of the International Association for the Study of the Liver·Kuang-Cheng ChanWei-Zen Sun
Aug 15, 2019·Journal of Clinical Monitoring and Computing·Valluvan RangasamyBalachundhar Subramaniam
Oct 27, 2020·Physiotherapy Research International : the Journal for Researchers and Clinicians in Physical Therapy·Breno Caldas RibeiroRodrigo Santiago Barbosa Rocha

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.