Chatterjee Phenomenon: A Demonstration of Cardiac Memory in Paced Rhythms
  • Jason Kuniyoshi
    Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA
  • Maggie Kwock
    Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA
  • Krixie Silangcruz
    Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA
  • Witina Techasatian
    Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA
  • Yoshito Nishimura
    Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA

Keywords

Cardiac memory, T-wave inversion, pacemaker

Abstract

Introduction: While T-wave inversions (TWI) are associated with various pathologies, they are rarely associated with cardiac memory, termed the Chatterjee phenomenon.

Case: A 76-year-old man with sick sinus syndrome with a pacemaker presented with chest tightness and new onset TWI in his precordial leads. On admission, he tested positive for COVID-19, but remained stable and only required minimal supplemental oxygen. His troponin was only slightly elevated, and EKG showed TWI throughout his precordial leads. A previous EKG had shown normal sinus rhythm without a paced rhythm or ST wave abnormalities. Interrogation of his pacemaker revealed an AV-paced rhythm. Given his chest tightness without dynamic changes in his troponin or EKG, the symptoms were considered more likely related to his COVID-19 infection, and he was discharged home.

Discussion: Aberrancies in normal cardiac conduction can result in altered electrical activation, especially for those with AV pacemakers, leading some patients to develop cardiac memory, manifesting as TWI.

Conclusion: AV-paced rhythm and narrow QRS complexes with TWI localized to precordial leads without evidence of active cardiac ischaemia may suggest cardiac memory, termed the Chatterjee phenomenon, requiring no invasive interventions.

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    Published: 2023-03-18
    Issue: 2023: Vol 10 No 3 (view)


    How to cite:
    1.
    Kuniyoshi J, Kwock M, Silangcruz K, Techasatian W, Nishimura Y. Chatterjee Phenomenon: A Demonstration of Cardiac Memory in Paced Rhythms. EJCRIM 2023;10 doi:10.12890/2023_003798.

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