20 December 2024
: Case report 
Atypical Wenckebach AV Block in the Infra-Hisian Region: Clinical Implications and Management
Challenging differential diagnosis, Rare disease
Atul Kaushik
ABCDEF 1, Avinash Jeewooth ABCDEF 2*, Aparna Jaswal ABCDEF 2, Amitesh Chakravarty ABCDEF 2, Hamed Bashir ABCDEF 2, Sukriti Raina ABCDEF 2
DOI: 10.12659/AJCR.946186
Am J Case Rep 2024; 25:e946186
Figure 1. (A) Rhythm strip before head-up tilt test was showing grouping of beats with progressive prolongation of the PR interval followed by a non-conducted P wave. There is also RP-PR reciprocity. These findings are suggestive of second-degree AV block (Mobitz type 1). (B) The 12 lead ECG shows bi-fascicular block (right bundle branch block [RBBB] + left anterior fascicular block [LAFB]) with Wenckebach AV block.