Related Experiment Videos
[Complete branch blocks in asymptomatic patients]
Annales De Cardiologie Et D'Angeiologie
|November 1, 1985
Summary
Complete bundle branch blocks in asymptomatic individuals rarely progress to complete A-V block before age 50. Isolated blocks without cardiovascular disease show an excellent long-term prognosis, with prolonged survival documented.
Area of Science:
- Cardiology
- Electrophysiology
- Internal Medicine
Context:
- Bundle branch blocks (BBBs) are a common finding in electrocardiography.
- Asymptomatic subjects with BBBs require careful evaluation for prognostic indicators.
- The natural history of asymptomatic BBBs is not fully understood.
Purpose:
- To evaluate the long-term prognosis of asymptomatic complete bundle branch blocks.
- To determine the progression rate of BBBs to complete atrioventricular (A-V) block.
- To identify factors associated with favorable outcomes in patients with BBBs.
Summary:
- This study reviewed international literature and personal experience regarding complete bundle branch blocks in asymptomatic individuals.
- Results indicate that complete BBBs rarely progress to complete A-V block before age 50.
- Isolated right or left BBBs without evident cardiovascular disease are associated with an excellent long-term prognosis, with documented survival of 20–40 years.
Impact:
- Provides crucial information for managing asymptomatic patients with bundle branch blocks.
- Suggests that isolated BBBs in the absence of other cardiac pathology may not necessitate aggressive intervention.
- Highlights the generally favorable long-term outlook for a significant subset of patients diagnosed with BBBs.