bifascicular block & trifascicular block

Pathology

• right bundle branch block with left posterior fascicular block
• right bundle branch block with left anterior fascicular block
• may be associated with 1st degree AV block (trifascicular block)

Diagnostic procedures

• electrocardiogram may show bifid QRS complex

Complications

• complete heart block

Management

• observation if asymptomatic

More general terms

• bundle branch block