Valvulopathies in sub-Saharan African children: patterns, humanitarian interventions and cardiac surgical problems

Area of Science:

• Cardiology
• Pediatric Cardiology
• Global Health

Background:

• Rheumatic fever and subsequent rheumatic valve disease (RVD) pose a significant health burden in sub-Saharan Africa, with prevalence 10-20 times higher than in industrialized nations.
• Over 50% of African RVD patients are estimated to die before age 25, often presenting with severe heart failure and growth retardation.
• Current strategies for RVD control are insufficient, necessitating a review of clinical and management issues.

Purpose of the Study:

• To review the clinical presentation and management of RVD in children within the sub-Saharan African context.
• To discuss the challenges and outcomes of surgical interventions for RVD in resource-limited settings.
• To evaluate different approaches to managing RVD, including valve repair and prosthetic options, and humanitarian efforts.

Main Methods:

• Review of clinical and management data for RVD in children in sub-Saharan Africa.
• Analysis of prevalent clinical presentations, including severe heart failure and undergrowth.
• Evaluation of surgical strategies: valve repair versus prosthetic implantation (mechanical vs. biologic).

Main Results:

• Severe mitral regurgitation is the most common valvulopathy in the first two decades of life.
• Valve repair can have unfavorable outcomes in cases of extreme cardiomegaly.
• Mechanical mitral prostheses are preferred when anticoagulation is feasible; biologic prostheses are best reserved for situations where anticoagulation is not possible.

Conclusions:

• Socioeconomic factors severely limit access to cardiac surgery in sub-Saharan Africa.
• Humanitarian initiatives, including international patient transfers for specialized care, offer a viable solution.
• Addressing RVD requires comprehensive strategies, improved healthcare access, and innovative management approaches tailored to the region's challenges.