Effect of the Final Coronary Arterial Diameter After Coronary Angioplasty on Heart Rate Variability Responses

Kanadaşı, Mehmet; Kudaiberdieva, Gulmira; Birand, Ahmet

doi:10.1111/j.1542-474x.2002.tb00150.x

Cited by 15 publications

(20 citation statements)

References 31 publications

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“…The SDTS changes in HRV were consistent with the findings of Janowska-Kulinska et al [3], where SDTS changed from 27.2˘18.6 ms before PCI to 21.3˘32.8 ms after PCI (p = 0.044). The decrease of parasympathetic tone was also consistent with the findings of Kanadasi et al [9], who showed the parasympathetically modulated HRV reduction occurred after PCI procedure in patients with single-vessel disease. However, they were in opposition to the results reported by Tseng et al [15], where the HRV parameters recorded before PCI procedure did not differ significantly from those assessed directly after the PCI procedure.…”

Section: Discussionsupporting

confidence: 80%

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Effect of a Percutaneous Coronary Intervention Procedure on Heart Rate Variability and Pulse Transit Time Variability: A Comparison Study Based on Fuzzy Measure Entropy

Zhang

Liu

et al. 2016

Entropy

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Percutaneous coronary intervention (PCI) is a common treatment method for patients with coronary artery disease (CAD), but its effect on synchronously measured heart rate variability (HRV) and pulse transit time variability (PTTV) have not been well established. This study aimed to verify whether PCI for CAD patients affects both HRV and PTTV parameters. Sixteen CAD patients were enrolled. Two five-minute ECG and finger photoplethysmography (PPG) signals were recorded, one within 24 h before PCI and another within 24 h after PCI. The changes of RR and pulse transit time (PTT) intervals due to the PCI procedure were first compared. Then, HRV and PTTV were evaluated by a standard short-term time-domain variability index of standard deviation of time series (SDTS) and our previously developed entropy-based index of fuzzy measure entropy (FuzzyMEn). To test the effect of different time series length on HRV and PTTV results, we segmented the RR and PTT time series using four time windows of 200, 100, 50 and 25 beats respectively. The PCI-induced changes in HRV and PTTV, as well as in RR and PTT intervals, are different. PCI procedure significantly decreased RR intervals (before PCI 973˘85 vs. after PCI 907˘100 ms, p < 0.05) while significantly increasing PTT intervals (207˘18 vs. 214˘19 ms, p < 0.01). For HRV, SDTS-only output significant lower values after PCI when time windows are 100 and 25 beats while presenting no significant decreases for other two time windows. By contrast, FuzzyMEn gave significant lower values after PCI for all four time windows (all p < 0.05). For PTTV, SDTS hardly changed after PCI at any time window (all p > 0.90) whereas FuzzyMEn still reported significant lower values (p < 0.05 for 25 beats time window and p < 0.01 for other three time windows). For both HRV and PTTV, with the increase of time window values, SDTS decreased while FuzzyMEn increased. This pilot study demonstrated that the RR interval decreased whereas the PTT interval increased after the PCI procedure and that there were significant reductions in both HRV and PTTV immediately after PCI using the FuzzyMEn method, indicating the changes in underlying mechanisms in cardiovascular system.

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Section: Discussionsupporting

confidence: 80%

“…It has been shown that HRV indices decrease after a percutaneous coronary intervention (PCI) procedure [3] and this drop is accompanied by an increased sympathetic tone [9]. Studies have invariably demonstrated that coronary artery bypass grafting (CABG) also leads to significant HRV reduction [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of a Percutaneous Coronary Intervention Procedure on Heart Rate Variability and Pulse Transit Time Variability: A Comparison Study Based on Fuzzy Measure Entropy

Zhang

Liu

et al. 2016

Entropy

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“…We speculate that the decrease in HRV parameters in early periods following recanalization of CTOs could be transient and might be associated with acute endothelial injury during the procedure or microembolization to the vascular bed that was previously protected from ischemia by collateral support. Consistent with the results of a previous study, localization of totally occluded coronary arteries in this study did not have significant impact on HRV results after the revascularization procedure [32]. Because the sinus node blood supply primarily comes from this artery, a significant change in HRV following successful PCI to RCA might be expected.…”

Section: Discussionsupporting

confidence: 90%

Short-term effect of percutaneous recanalization of chronic total occlusions on QT dispersion and heart rate variability parameters

et al. 2013

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BackgroundQT dispersion (QTd), which is a measure of inhomogeneity of myocardial repolarization, increases following impaired myocardial perfusion. Its prolongation may provide a suitable substrate for life-threatening ventricular arrhythmias. We investigated the changes in QTd and heart rate variability (HRV) parameters after successful coronary artery revascularization in a patient with chronic total occlusions (CTO).Material/MethodsThis study included 139 successfully revascularized CTO patients (118 men, 21 women, mean age 58.3±9.6 years). QTd was measured from a 12-lead electrocardiogram and was defined as the difference between maximum and minimum QT interval. HRV analyses of all subjects were obtained. Frequency domain (LF: HF) and time domain (SDNN, pNN50, and rMSSD) parameters were analyzed. QT intervals were also corrected for heart rate using Bazett’s formula, and the corrected QT interval dispersion (QTcd) was then calculated. All measurements were made before and after percutaneous coronary intervention (PCI).ResultsBoth QTd and QTcd showed significant improvement following successful revascularization of CTO (55.83±14.79 to 38.87±11.69; p<0.001 and 61.02±16.28 to 42.92±13.41; p<0.001). The revascularization of LAD (n=38), Cx (n=28) and RCA (n=73) resulted in decrease in HRV indices, including SDDN, rMSSD, and pNN50, but none of the variables reached statistical significance.ConclusionsSuccessful revascularization of CTO may result in improvement in regional heterogeneity of myocardial repolarization, evidenced as decreased QTcd after the PCI. The revascularization in CTO lesions does not seem to have a significant impact on HRV.

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“…Parasympathetic indices are reduced in patients within 24 h after PCI (Tseng et al, 1996; Osterhues et al, 1998; Wennerblom et al, 2000; Kanadasi et al, 2002). However, this reduction in parasympathetic function appears to be a transient phenomenon (Osterhues et al, 1998; Kanadasi et al, 2002; Janowska-Kulińska et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…However, this reduction in parasympathetic function appears to be a transient phenomenon (Osterhues et al, 1998; Kanadasi et al, 2002; Janowska-Kulińska et al, 2009). In patients with greater than one target-vessel affected and/or with other comorbidities, HRV remains lower due to several factors (Tseng et al, 1996; Birand et al, 1998; Wennerblom et al, 2000; Kanadasi et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Cardiac rehabilitation outcomes following a 6-week program of PCI and CABG Patients

et al. 2013

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Coronary artery events requiring intervention are associated with depressed cardiac autonomic function. Whether a 6-week cardiac rehabilitation (CR) differs in effectiveness in improving exercise capacity (6MWT), cardiorespiratory function (peakVO2), and autonomic function (HRV) following either cardiac bypass surgery (CABG) or percutaneous coronary revascularization (PCI) is unknown. The current study therefore compared the change in 6MWT and peak VO2 to HRV variables following a 6-week CR program and with patients having either PCI or CABG. Thirty-eight patients, (PCI, n = 22 and CABG, n = 16) participated in the CR program and results for pre and post 6 min walk test (6MWT), peakVO2, and heart rate variability (HRV) were obtained. Our study has shown that a 6 weeks program following either PCI or CABG improves function. However, the effect on post-CABG differs to that of post-PCI patients. The change in distance walked (6MWT, metres) was higher in the CABG (Δ6MWT: 61, p < 0.001) compared to the PCI group (Δ6MWT: 41, p < 0.001). Maximum exercise capacity (peak VO2, ml/kg.min) also changed significantly with a greater change in the CABG group (ΔPCI: 0.7, p < 0.001; ΔCABG: 1.0, p < 0.001) but did not reach normal population values. Although an improvement in HRV parameters was noted for the PCI group, a statistically significant improvement in HRV was observed only in the CABG group for the following; SDNN (ms) (baseline vs. post-rehabilitation (median ± IQR): 31.2 ± 25.6 vs. 51.8 ± 23.1, p < 0.01), RMSSD (19.32 ± 19.9 vs. 42.1 ± 34.2, p < 0.01); LF (ms2) (191 ± 216 vs. 631 ± 693, p < 0.01) and HF (107 ± 201 vs. 449 ± 795.0, p < 0.05). A significant interaction in the PCI group but not in the CABG group was observed using correlation analysis between the 6MWT and peak VO2 with HRV parameters indicating that being healthier that is, a better 6MWT and peak VO2 led to better HRV results but no significant effect of CR in the PCI group. When the results were investigated for baseline 6MWT and peak VO2 effect using a covariate analysis, a significant influence of CR on HRV parameters was retained in the CABG group (p = 0.0072). Our study indicates that a 6-weeks CR program benefits both patient groups in terms of exercise capacity, cardiorespiratory function and autonomic nervous system modulation of heart rate, with CABG patients showing the most improvement. HRV can be a useful additional variable to gauge cardiac function following CR.

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Effect of the Final Coronary Arterial Diameter After Coronary Angioplasty on Heart Rate Variability Responses

Cited by 15 publications

References 31 publications

Effect of a Percutaneous Coronary Intervention Procedure on Heart Rate Variability and Pulse Transit Time Variability: A Comparison Study Based on Fuzzy Measure Entropy

Effect of a Percutaneous Coronary Intervention Procedure on Heart Rate Variability and Pulse Transit Time Variability: A Comparison Study Based on Fuzzy Measure Entropy

Short-term effect of percutaneous recanalization of chronic total occlusions on QT dispersion and heart rate variability parameters

Cardiac rehabilitation outcomes following a 6-week program of PCI and CABG Patients

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