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P-Wave Changes Associated with Chiari Network in the Right Atrium

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Abstract

The Chiari network (CN) is a mobile, net-like structure occasionally present in the right atrium, near the opening of the inferior vena cava and coronary sinus. While typically asymptomatic, it may contribute to thromboembolism or right atrial pathologies. Here, we hypothesized that existing differences in P-wave morphology on electrocardiograms (ECG) may be associated with atrial conduction changes. Seventy-one children with a CN were recruited and matched to 60 healthy controls. P-wave duration, P-wave amplitude, P dispersion (Pd), QRS, PR, QT, and QTc (calculated with Bazett formula) intervals were measured and compared. Between the control and the patient groups, the mean P-wave duration was 78.1 ms and 88.7 ms, P amplitude was 1.3 mm and 1.1 mm, and Pd was 18.9 and 35.5 ms, respectively. These differences were statistically significant across all measurements (p < 0.05). Atrial conduction may be affected in patients with CN, and these patients may then develop atrial arrhythmia.

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Abbreviations

AF:

Atrial fibrillation

CN:

Chiari network

ECG:

Electrocardiogram

ECO:

Echocardiogram

Pd:

P-wave dispersion

SPSS:

Statistical package for social sciences

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Acknowledgements

The authors would like to thank all the workers in Department of Pediatrics for their support.

Funding

Research is not funded by any grant.

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Authors and Affiliations

  1. Department of Pediatric Cardiology, Okmeydani Training and Research Hospital, Istanbul, Turkey

    Ahmet Irdem

  2. Department of Pediatrics, Karasu Government Hospital, Karasu, Sakarya, Turkey

    Melis Akpinar

  3. Department of Pediatrics, Okmeydani Training and Research Hospital, Istanbul, Turkey

    Ebru Celebi & Hasan Dursun

  4. Department of Pediatric Intensive Care Unit, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey

    Fatih Aygun

Authors
  1. Ahmet Irdem
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  2. Melis Akpinar
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  3. Ebru Celebi
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  4. Fatih Aygun
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  5. Hasan Dursun
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Corresponding author

Correspondence to Melis Akpinar.

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All authors have no conflicts of interest to declare.

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All procedures performed in this study 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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Informed consent was obtained from a parent or legal guardian post review of consent document and after all questions were answered. Institutional review board approvals were obtained for this study.

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Irdem, A., Akpinar, M., Celebi, E. et al. P-Wave Changes Associated with Chiari Network in the Right Atrium. Pediatr Cardiol 41, 1773–1776 (2020). https://doi.org/10.1007/s00246-020-02441-9

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  • DOI: https://doi.org/10.1007/s00246-020-02441-9

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