Submitted: 16 Mar 2021
Accepted: 08 Jul 2021
ePublished: 25 Aug 2021
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J Cardiovasc Thorac Res. 2021;13(3): 222-227.
doi: 10.34172/jcvtr.2021.38
  Abstract View: 146
  PDF Download: 198
  Full Text View: 33

Original Article

The effect of recanalization of a chronic total coronary occlusion on P-wave dispersion

Aydın Rodi Tosu 1 ORCID logo, Muhsin Kalyoncuoğlu 1, Halil İbrahim Biter 1, Sinem Çakal 1, Beytullah Çakal 2, Tufan Çınar 3* ORCID logo, Erdal Belen 1, Mehmet Mustafa Can 1

1 Health Sciences University, Haseki Training and Research Hospital, Department of Cardiology, Istanbul, Turkey
2 Istanbul Medipol University, Faculty of Medicine, Department of Cardiology, Istanbul, Turkey
3 Health Sciences University, Sultan II. Abdulhamid Han Training and Research Hospital, Department of Cardiology, Istanbul, Turkey
*Corresponding Author: Tufan Çınar, Email: drtufancinar@gmail.com


Introduction: P-wave dispersion (PWD) obtained from the standard 12-lead electrocardiography (ECG) is considered to reflect the homogeneity of the atrial electrical activity. The aim of this investigation was to evaluate the effect of percutaneous chronic total occlusion (CTO) revascularization on the parameters of P wave duration and PWD on ECG in cases before and after procedure at 12th months.

Methods: We analyzed 90 consecutive CTO cases who were on sinus rhythm and underwent percutaneous coronary intervention (PCI). P-wave maximum (P-max) and P-wave minimum (P-min), P-wave time, and PWD were determined before and twelve months after the CTO intervention. The study population was categorized into two groups as successful and unsuccessful CTO PCI groups.

Results: The CTO PCI was successful in 71% of cases (n=64) and it was unsuccessful in 29% of cases (n=26). Both groups, except for age and hypertension, were similar in terms of demographic and clinical aspects. CRP levels were significantly elevated in the unsuccessful CTO PCI group. Pre-PCI ECG parameters showed no significant difference. Irrespective of the target vessel revascularization, we observed that PWD and P-max values were significantly lower in the 12th months follow-up. In all Rentrop classes, PWD values were significantly decreased at 12th months follow-up in comparison to the pre-CTO PCI values.

Conclusion: This study has determined that PWD and P-max, which are both risk factors for atrial arrhythmias, are significantly reduced within 12th months after successful CTO PCI regardless of the target vessel.

Keywords: Chronic Total Occlusion, Percutaneous Coronary, Intervention, P-Wave, P-Wave Dispersion

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