High resolution heart rate variability analysis in patients with angina pectoris during coronary artery bypass graft surgery

Mironov, V. A.; Mironova, Tatyana; Kuvatov, V. A.; Nokhrina, O. Yu.; Kuvatova, E.V.

doi:10.1063/1.5017333

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…In this study, a signi cant decrease in all parameters of HRV was observed from measurement 2 to measurement 1, indicating that cardiac surgery had a signi cant effect on both sympathetic and parasympathetic nerve activities, a result that was similar to studies from other researchers (Lakusic et al, 2008;Mironova et al, 2017). However, no signi cant difference in HRV was observed between measurement 3 and measurement 1, indicating that the HRV of patients who received cardiac surgery recovered slightly 1 month postoperatively.…”

Section: Discussionsupporting

confidence: 87%

“…A study by Lombardi showed that HRV was an important indicator of the physiological status of patients with heart diseases (Lombardi et al, 2001). Several studies have shown that single surgical procedures such as mitral valve surgery (Lakusic et al, 2008) and coronary artery bypass surgery (Mironova et al, 2017) may lead to a short-term reduction in HRV, and that the HRV analysis may also be used to predict the onset of surgical complications (Nenna et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

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Effects of Cardiac Surgery on Heart Rate Variability and Its Correlation with the Quality of Life

Lee,

Chang,

Hsieh

et al. 2024

Preprint

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Objectives The purpose of this study is to explore the changes in HRV before and after cardiac surgery and the relationship between HRV and quality of life. Methods A total of 21 patients who received cardiac surgery were included in this study. All cases were conducted with a five-minute ECG uploaded by a Bluetooth signal three times. The ECGs were measured before the operation (1st), after the operation (2nd), and one month after the operation (3rd). The parameters of HRV included: standard deviation of normal to normal (SDNN), low frequency (LF), high frequency (HF), normalized low frequency (LF %), and LF/HF. In the third ECG measurement, the patients were also required to answer the World Health Organization Quality of Life Questionnaire (WHOQOL-BREF) in the concise Taiwanese version. The parameters of HRV were analyzed with Wilcoxon signed ranked test. The Spearman correlation test analyzed the correlations between the parameters of HRV and quality of life. Informed consent was obtained from all subjects and/or their legal guardian(s). Results Compared with the 1st ECG measurement, the SDNN, LF, and LF% decreased significantly in the 2nd ECG. There was a significant increase in SDNN in the 3rd ECG, but there was no significant difference compared with the 1st ECG. There was a significant positive correlation between HRV and the psychological category of quality of life. Conclusions Heart rate variability decreased after cardiac surgery, and the slight recovery of heart rate variability one month after surgery was mainly due to the recovery of sympathetic nerves. The psychological category of quality of life after surgery received the lowest score, which may be related to the incomplete recovery of parasympathetic nerve activity after surgery. The objective data of heart rate variability analysis can reflect the subjective psychological category of patients after heart surgery.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Effects of Cardiac Surgery on Heart Rate Variability and Its Correlation with the Quality of Life

Lee,

Chang,

Hsieh

et al. 2024

Preprint

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“…Mathews Journal of Cardiology https://doi.org/10.30654/MJC.10023 We were able to obtain the control autopsy material of the ectopia of the left atrium node of a man who died from a noncardiac cause, as well as the material of a deceased patient with atrial fibrillation during life [3]. Electron microscopy results are shown for comparison (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…And the structure of the pathways looks like this (Fig. 1-3), as an example, we have shown the left atrium with the Bachmann tract.A microscopic examination of Purkinje fibers showed that many T-cells form a stable antioxidant wall (Fig.2)[3].…”

mentioning

confidence: 99%

Fibrillation and Flutter of the Heart, Pathological Aspects of the Mechanism

RG¹,

ER²

2022

MJC

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The article is scientific, theoretical and debatable, based on a deep analysis of the electrical activity of the heart and electrocardiogram data. Paroxysmal arrhythmia applies; paroxysmal tachycardia, flutter and fibrillation of the heart. The combination of these arrhythmias with structural changes in the heart should cause damage to the antioxidant barrier of source of generation. The article has a lot of pictures that should visually show you the cause and mechanism of the development of paroxysmal arrhythmias. But do not forget that the article and theoretical, written only for scientists.

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“…Biến cố tim mạch chính sau 3 tháng và sau 6 tháng là 9,2% và 10,8%. Trong đó, giảm BTNT trước phẫu thuật có xu hướng làm tăng tần số biến cố tim mạch chính lên 3,40 lần khi theo dõi đến 3 tháng sau phẫu thuật (OR: 3,40; 95%CI: 0,11; p>0,05). Giảm BTNT trước phẫu thuật làm tăng nguy cơ xuất hiện biến cố tim mạch chính lên 3,41 lần khi theo dõi đến 6 tháng sau phẫu thuật (OR: 3,41; 95%CI: 1,05 -11,05; p<0,05).…”

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

Thanh¹,

Son²,

Tuấn³

2021

VJCTS

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Introduction and objectives: Previous studies have shown that after coronary artery bypass grafting (CABG), heart rate variability (HRV) becomes decreased. The aim of this study was to evaluate the role of decreased heart rate variability in coronary artery bypass grafting patients. Methods: The study involved 119 consecutive patients who underwent the first CABG operation with sinus rhythm. All subjects underwent assessed with 24-hour Holter recordings 2 days preoperative and 7 days postoperative at Hanoi Heart Hospital from 6/2016 to 8/2018. Major adverse cardiovascular events was defined as cardiac death, recurrent myocardial infarction, stroke, decompensated heart failure and re-hospitalization. The patients were followed up for 6 months. Main results: The incidence of major adverse cardiovascular events was 10.8% followed to 6 months. The incidence of pre and postoperative low HRV varies from 28.6% (preop) to 51.8% (postop 7 days). In which, decreased HRV preoperative predictors of major adverse cardiac events in patients undergoing coronary artery bypass graft surgery: followed up for 3 months: (OR:3,40; 95%CI: 0,97 – 12,11; p>0,05), followed up for 6 months (OR:3,41; 95%CI: 1,05 – 11,05; p<0,05). Conclusions: Preoperative with low HRV was pedict a risk factor for major adverse cardiovascular events.

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High resolution heart rate variability analysis in patients with angina pectoris during coronary artery bypass graft surgery

Cited by 3 publications

References 8 publications

Effects of Cardiac Surgery on Heart Rate Variability and Its Correlation with the Quality of Life

Effects of Cardiac Surgery on Heart Rate Variability and Its Correlation with the Quality of Life

Fibrillation and Flutter of the Heart, Pathological Aspects of the Mechanism

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

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