trifascicular block

Asymptomatic bifascicular block + first degree AV block is not an indication for permanent pacing (class III)

References

Gregoratos G, Cheitlin MD, Conill A, Epstein AE, Fellows C, Ferguson TB Jr, Freedman RA, Hlatky MA, Naccarelli GV, Saksena S, Schlant RC, Silka MJ. ACC/AHA Guidelines for Implantation of Cardiac Pacemakers and Antiarrhythmia Devices: Executive Summary--a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on Pacemaker Implantation). Circulation. 1998 Apr 7;97(13):1325-35. https://doi.org/10.1161/01.cir.97.13.1325. PMID: 9570207.