Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction
Abstract Heart failure is characterized by sympathetic activation and parasympathetic withdrawal leading to an abnormal autonomic modulation. Beta-blockers (BB) inhibit overstimulation of the sympathetic system and are indicated in heart failure patients with reduced ejection fraction. However, the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-32963-0 |
| _version_ | 1797845955169484800 |
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| author | Shiza Saleem Ahsan H. Khandoker Mohanad Alkhodari Leontios J. Hadjileontiadis Herbert F. Jelinek |
| author_facet | Shiza Saleem Ahsan H. Khandoker Mohanad Alkhodari Leontios J. Hadjileontiadis Herbert F. Jelinek |
| author_sort | Shiza Saleem |
| collection | DOAJ |
| description | Abstract Heart failure is characterized by sympathetic activation and parasympathetic withdrawal leading to an abnormal autonomic modulation. Beta-blockers (BB) inhibit overstimulation of the sympathetic system and are indicated in heart failure patients with reduced ejection fraction. However, the effect of beta-blocker therapy on heart failure with preserved ejection fraction (HFpEF) is unclear. ECGs of 73 patients with HFpEF > 55% were recruited. There were 56 patients in the BB group and 17 patients in the without BB (NBB) group. The HRV analysis was performed for the 24-h period using a window size of 1,4 and 8-h. HRV measures between day and night for both the groups were also compared. Percentage change in the BB group relative to the NBB group was used as a measure of difference. RMSSD (13.27%), pNN50 (2.44%), HF power (44.25%) and LF power (13.53%) showed an increase in the BB group relative to the NBB group during the day and were statistically significant between the two groups for periods associated with high cardiac risk during the morning hours. LF:HF ratio showed a decrease of 3.59% during the day. The relative increase in vagal modulated RMSSD, pNN50 and HF power with a decrease in LF:HF ratio show an improvement in the parasympathetic tone and an overall decreased risk of a cardiac event especially during the morning hours that is characterized by a sympathetic surge. |
| first_indexed | 2024-04-09T17:47:18Z |
| format | Article |
| id | doaj.art-936fd151d4a94e909ab13545359e30b6 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T17:47:18Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-936fd151d4a94e909ab13545359e30b62023-04-16T11:14:40ZengNature PortfolioScientific Reports2045-23222023-04-0113111410.1038/s41598-023-32963-0Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fractionShiza Saleem0Ahsan H. Khandoker1Mohanad Alkhodari2Leontios J. Hadjileontiadis3Herbert F. Jelinek4Department of Biomedical Engineering, Khalifa UniversityDepartment of Biomedical Engineering, Khalifa UniversityHealthcare Engineering Innovation Center, Khalifa UniversityDepartment of Biomedical Engineering, Khalifa UniversityDepartment of Biomedical Engineering, Khalifa UniversityAbstract Heart failure is characterized by sympathetic activation and parasympathetic withdrawal leading to an abnormal autonomic modulation. Beta-blockers (BB) inhibit overstimulation of the sympathetic system and are indicated in heart failure patients with reduced ejection fraction. However, the effect of beta-blocker therapy on heart failure with preserved ejection fraction (HFpEF) is unclear. ECGs of 73 patients with HFpEF > 55% were recruited. There were 56 patients in the BB group and 17 patients in the without BB (NBB) group. The HRV analysis was performed for the 24-h period using a window size of 1,4 and 8-h. HRV measures between day and night for both the groups were also compared. Percentage change in the BB group relative to the NBB group was used as a measure of difference. RMSSD (13.27%), pNN50 (2.44%), HF power (44.25%) and LF power (13.53%) showed an increase in the BB group relative to the NBB group during the day and were statistically significant between the two groups for periods associated with high cardiac risk during the morning hours. LF:HF ratio showed a decrease of 3.59% during the day. The relative increase in vagal modulated RMSSD, pNN50 and HF power with a decrease in LF:HF ratio show an improvement in the parasympathetic tone and an overall decreased risk of a cardiac event especially during the morning hours that is characterized by a sympathetic surge.https://doi.org/10.1038/s41598-023-32963-0 |
| spellingShingle | Shiza Saleem Ahsan H. Khandoker Mohanad Alkhodari Leontios J. Hadjileontiadis Herbert F. Jelinek Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction Scientific Reports |
| title | Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| title_full | Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| title_fullStr | Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| title_full_unstemmed | Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| title_short | Investigating the effects of beta-blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| title_sort | investigating the effects of beta blockers on circadian heart rhythm using heart rate variability in ischemic heart disease with preserved ejection fraction |
| url | https://doi.org/10.1038/s41598-023-32963-0 |
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