Bibliography:
Pham TH, Amsterdam E, Glassy MS. Syncope With Bifascicular Block Due
to Infra-Hisian Wenckebach Conduction Abnormality. JAMA Intern
Med . 2018;178(10):1408-1410. doi:10.1001/jamainternmed.2018.3951
Glikson M, Nielsen JC, Kronborg MB, et al. 2021 ESC Guidelines on
cardiac pacing and cardiac resynchronization therapy. Eur Heart
J . 2021;42(35):3427-3520. doi:10.1093/eurheartj/ehab364