10 November 2025
: Case report 
Atrio-Ventricular Nodal Block Associated with Methamphetamine Use
Unusual clinical course, Challenging differential diagnosis, Clinical situation which can not be reproduced for ethical reasons
Nicholas L. Vitagliano ABCDEFG 1*, Tyler Ky ABE 1, John M. Kennedy ABDEFG 2DOI: 10.12659/AJCR.950013
Am J Case Rep 2025; 26:e950013
Figure 3 Twelve-lead ECG recorded at 25 mm/s and 10 mm/mV shows transient 3: 1 AV block with progressive PR prolongation before the dropped beat, consistent with Wenckebach physiology.