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Published on: January 28, 2020
Changes in heart rate variability caused by coronary angioplasty depend on the localisation of coronary lesions
Agnieszka Janowska-Kulińska1, Katarzyna Torzyńska, Agata Markiewicz-Grochowalska
1Uniwersytet Medyczny w Poznaniu, Szpital Rehabilitacyjno-Kardiologiczny, ul. Sanatoryjna 34, Kowanówko, 64-600 Oborniki. agnieszka30j@tlen.pl
Insights
Coronary angioplasty (PTCA) impacts heart rate variability (HRV) differently based on lesion location. PTCA of the circumflex artery caused the most significant HRV changes, while left anterior descending artery PTCA had no effect.
Area of Science:
- Cardiology
- Autonomic Nervous System Research
- Medical Imaging Analysis
Background:
- Coronary angioplasty (PTCA) is a common intervention for coronary heart disease.
- The impact of PTCA on heart rate variability (HRV) remains incompletely understood.
- Investigating HRV changes post-PTCA is crucial for understanding cardiac autonomic function.
Purpose of the Study:
- To determine if the location of a coronary lesion treated with PTCA influences HRV parameters.
- To analyze the specific effects of PTCA on different coronary arteries on HRV.
Main Methods:
- Ninety-six patients undergoing elective coronary angiography and successful PTCA were studied.
- Electrocardiogram (ECG) recordings were taken before and 24 hours after PTCA.
- Heart rate variability (HRV) indices were calculated using classical and novel mathematical models.
Main Results:
- PTCA of the circumflex artery led to significant decreases in multiple HRV domain indices and increased LF/HF ratio.
- Angioplasty of the right coronary artery resulted in decreased AR TP and a shift in sympathovagal balance towards sympathetic predominance.
- PTCA of the left anterior descending artery did not produce significant changes in HRV parameters.
Conclusions:
- The location of coronary lesions treated with PTCA influences the resulting changes in heart rate variability.
- Different coronary arteries exhibit distinct HRV responses to PTCA, highlighting the importance of lesion localization in cardiac assessment.
Background:
Coronary angioplasty (PTCA) is a common treatment method in patients with coronary heart disease, but its effects on heart rate variability (HRV) have not been well established.
Aim:
To verify whether the localisation of coronary lesion undergoing PTCA affects HRV parameters.
Methods:
Ninety six consecutive individuals underwent elective coronary angiography with subsequent ad hoc successful PTCA. Two five-minute ECG were recorded, one before PTCA and the second 24-hour after PTCA. The HRV indices were determined by means of classical and 'new' mathematical models.
Results:
The PTCA-induced changes in HRV variables depended on the localisation of dilated lesion. PTCA of the circumflex artery revealed the most significant HRV changes--a decrease in value of domain indices: Yeh DI (0.033+/-0.031 vs. 0.011+/-0.006 un/unitless, p=0.005), Yeh II (0.053+/-0.039 vs. 0.032+/-0.013 un, p=0.017), Organ BAND (9.101+/-9.245 vs. 4.62+/-2.205 bpm/beat per minute, p=0.031), Huey STV (208.821+/-262.248 vs. 76.444+/-35.281 bpm, p=0.013), Dalton MABB (15.733+/-16.575 vs. 7.57+/-4.89 ms, p=0.015), Dalton SD (48.741+/-37.468 vs. 27.759+/-10.533 ms, p=0.015), Zugaib STV (0.0129+/-0.0132 vs. 0.005+/-0.003 un, p=0.005), SDNN (27.204+/-18.592 vs. 21.329+/-32.784 ms, p=0.044), rMSSD (56.239+/-19.751 vs. 51.496+/-43.889 ms, p=0.025) and increased LF/HF (2.384+/-2.072 vs. 5.632+/-5.379 un, p=0.044). Angioplasty of the right coronary artery resulted in decreased AR TP (18.273+/-2.296 vs. 17.085+/-2.256 ms(2), p=0.017) and alteration of the sympathovagal balance of the autonomic nervous system towards predominance of sympathetic activity: AR LF (0.264+/-0.029 vs. 0.284+/-0.040 un, p=0.007), LF/HF (4.310+/-4.457 vs. 6.958+/-7.013 un, p=0.018), HF (0.199+/-0.165 vs. 0.141+/-0.157 un, p=0.031), AR HF (0.647+/-0.043 vs. 0.621+/-0.054 un, p=0.014). PTCA of the left anterior descending artery caused no change.
Conclusion:
Changes in heart rate variability caused by coronary angioplasty depend on the localisation of coronary lesions.
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