Electrocardiographic and Arrhythmic Manifestations of End-Stage Atrial Myopathy in Patients With Longstanding Persistent or Permanent Atrial Fibrillation: A 3-Patient Case Series

Frans Serpa; Nimesh Patel; Jose A. Joglar

doi:10.12659/AJCR.953661

16 September 2026 : Case report USA

Electrocardiographic and Arrhythmic Manifestations of End-Stage Atrial Myopathy in Patients With Longstanding Persistent or Permanent Atrial Fibrillation: A 3-Patient Case Series

Unusual clinical course

Frans Serpa

^{ABDEF 1*}, Nimesh Patel

^{DE 1}, Jose A. Joglar

^{ADEG 1}

DOI: 10.12659/AJCR.953661

Am J Case Rep 2026; 27:e953661

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Figure 4 Follow-up ECG from patient 2 with ventricular-paced rhythm and absence of visible atrial activity. Atrial pacing spikes are present without clear evidence of atrial capture. Device interrogation demonstrated absent atrial sensing or capture.

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Electrocardiographic and Arrhythmic Manifestations of End-Stage Atrial Myopathy in Patients With Longstanding Persistent or Permanent Atrial Fibrillation: A 3-Patient Case Series

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