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Complete heart block and physical performance.
International Journal of Sports Medicine
|February 1, 1983
Summary
Complete heart block (CCHB) without structural heart disease allows normal development and life. Patients can often lead active lives, engaging in strenuous activities if Stokes-Adams attacks are absent.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Electrophysiology
Background:
- Complete heart block (CCHB) is a rare cardiac condition.
- CCHB can present with complications like syncope and arrhythmias.
- Associated congenital heart malformations can impact prognosis.
Observation:
- Most individuals with CCHB, particularly those without underlying structural heart disease, exhibit normal development.
- Absence of Stokes-Adams attacks and significant ectopy at rest and during exercise indicates normal physical capacity.
Findings:
- Compensatory physiological adaptations include increased stroke volume, cardiac enlargement, and enhanced oxygen extraction.
- These mechanisms support the cardiovascular system's ability to meet increased demands.
Implications:
- Individuals with CCHB and no structural heart disease can lead normal lives.
- Normal physical capacity allows for strenuous work and participation in sports.
- The role of physical training in adaptation warrants further investigation.