Indications for pacing in multifascicular block

Pacemaker necessary	Pacemaker probably necessary	Pacemaker not necessary
Symptomatic patients with fascicular block and significantly prolonged H-V interval by electrophysiologic study	Patients with syncope and bifascicular or trifascicular block with other etiologies of syncope excluded	Asymptomatic fascicular block without AV block
Symptomatic patients with block distal to His at atrial paced rates of less than 100-120 bpm	Pacing-induced block distal to His at atrial paced rates of less than 130 bpm	Asymptomatic fascicular block and first degree AV block
Symptomatic patients with bifascicular block and intermittent type II second degree AV block or third degree AV block	Asymptomatic patients with fascicular block and intermittent type II second degree or third degree AV block

Pacing_in_multifascicular_b.htm

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