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Evaluation of Changes in Ventricular Repolarization Parameters in Morbidly Obese Patients Undergoing Bariatric Surgery

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Abstract

Background

Weight loss after bariatric surgery has been associated with reduced cardiovascular mortality and overall mortality in obese patients. In this study, we aimed to analyze the changes between pre-operation and post-operation ventricular arrhythmia predictors in patients who underwent bariatric surgery.

Materials and Methods

The study included 58 patients who underwent bariatric surgery. We measured QT max, QT min, QRS, JT, and Tp-e intervals, and we estimated Tp-e/QT max, Tp-e/QTc max, Tp-e/JT, Tp-e/JTc rates, QTc max, QTc min, cQTd, and JTc intervals both pre-op and 6 months post-op.

Results

Heart rate, PR, QT max, QTc max, QTc min, cQTd, JTc, Tp-e, Tp-e/QT max, Tp-e/QTc max, Tp-e/JT, and Tp-e/JTc values, which were close to the upper limit in the pre-op period, showed statistically significant decreases at 6 months post-op.

Conclusion

The results of our study showed that bariatric surgery had positive effects on the regression of ventricular repolarization parameters and the possible development of ventricular arrhythmia.

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Author information

Authors and Affiliations

  1. Cardiology Department, Başakşehir Çam and Sakura City Hospital, Başakşehir Mahallesi G-434 Caddesi No: 2L, 34480 Başakşehir, İstanbul, Turkey

    Ersin Ibisoglu, Deniz Dilan Naki Tekin & Aslan Erdoğan

  2. Cardiology Department, İstanbul Medipol University, İstanbul, Turkey

    Filiz Kızılırmak, Beytullah Çakal, Fatih Erkam Olgun & H. Murat Güneş

  3. Radiology Department, İstanbul Training and Research Hospital, İstanbul, Turkey

    Saime Turgut Güneş

  4. Cardiology Department, Tatvan State Hospital, Bitlis, Turkey

    Bedrettin Boyraz

  5. General Surgery Department, İstanbul Medipol University, İstanbul, Turkey

    Yaşar Özdenkaya

  6. İstanbul Haseki Training and Research Hospital, İstanbul, Turkey

    Sinem Çakal

  7. İstanbul Gaziosmanpaşa Training and Research Hospital, İstanbul, Turkey

    Ümeyir Savur

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  1. Ersin Ibisoglu
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Corresponding author

Correspondence to Ersin Ibisoglu.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Ibisoglu, E., Tekin, D.D.N., Kızılırmak, F. et al. Evaluation of Changes in Ventricular Repolarization Parameters in Morbidly Obese Patients Undergoing Bariatric Surgery. OBES SURG 31, 3138–3143 (2021). https://doi.org/10.1007/s11695-021-05385-y

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  • DOI: https://doi.org/10.1007/s11695-021-05385-y

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