Rheumatic Heart Disease Epidemiology and Management

Rheumatic heart disease (RHD) is a chronic valvular disorder that arises as a long-term consequence of acute rheumatic fever (ARF), itself an autoimmune response to untreated Group A Streptococcus pharyngitis. Although once common worldwide, RHD now predominates in low- and middle-income settings where overcrowding, limited primary care access and social deprivation persist. Population-based echocardiographic surveys report prevalence estimates between 1‰ and 30‰ among school-age children, with higher rates in sub-Saharan Africa, South Asia and the Pacific. Disease trajectories range from latent valve changes detectable only by ultrasound to severe stenosis or regurgitation necessitating surgical repair or replacement. Management strategies are tiered: prompt antibiotic treatment of streptococcal throat infections for primary prevention; long-term secondary prophylaxis with intramuscular benzathine penicillin to avert recurrences; and interventional cardiology or surgery for advanced valvular damage. Programmes now combine community-based screening, echocardiographic surveillance and health-system quality improvement to bolster adherence, while research into genetic susceptibility and social determinants is informing more targeted prevention and care delivery.

Research from Nature Portfolio

A global meta-analysis of population-based echocardiographic studies has yielded a pooled RHD prevalence of 26‰ when using World Heart Federation criteria and 11‰ by World Health Organization definitions, with prevalence inversely related to national income. Follow-up data indicate that around 8% of definite RHD cases progress over time, whereas most remain stable. Complementing these epidemiological findings, a genome-wide association investigation in Oceanic populations has pinpointed a nonsynonymous haplotype at the immunoglobulin heavy chain IGHV4-61 locus that confers a roughly 40% increased risk of RHD per allele, highlighting the role of germline immune variation in disease susceptibility and opening avenues for mechanistic and translational studies.

Rheumatic Heart Disease Epidemiology and Management publication trend

The graph below shows the total number of articles in rheumatic heart disease epidemiology and management across all publications each year (not limited to Nature Index journals).

Technical terms

Acute rheumatic fever: An autoimmune inflammatory illness following Group A Streptococcus throat infection, affecting heart, joints and other tissues.

Rheumatic heart disease: Permanent valvular damage resulting from repeated or severe episodes of acute rheumatic fever.

Echocardiography: Ultrasound imaging of the heart used to detect structural and functional abnormalities of the valves.

Secondary prophylaxis: Ongoing antibiotic administration, typically benzathine penicillin every four weeks, to prevent recurrent ARF in persons with prior disease.

References

1. Active surveillance for rheumatic heart disease in endemic regions: a systematic review and meta-analysis of prevalence among children and adolescents. The Lancet Global Health (2014).
2. The role of social determinants of health in the risk and prevention of group A streptococcal infection, acute rheumatic fever and rheumatic heart disease: A systematic review. PLOS Neglected Tropical Diseases (2018).
3. The natural history of latent rheumatic heart disease in a 5 year follow-up study: a prospective observational study. BMC Cardiovascular Disorders (2016).
4. Prevalence and progression of rheumatic heart disease: a global systematic review and meta-analysis of population-based echocardiographic studies. Scientific Reports (2019).
5. Association between a common immunoglobulin heavy chain allele and rheumatic heart disease risk in Oceania. Nature Communications (2017).
6. Prevalence of Acute Rheumatic Fever and Rheumatic Heart Disease among Ethnic Groups, New Zealand, 2000–2018 - Volume 27, Number 1—January 2021 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases (2021).
7. Antibiotics for the primary prevention of acute rheumatic fever: a meta-analysis. BMC Cardiovascular Disorders (2005).
8. Improvement in rheumatic fever and rheumatic heart disease management and prevention using a health centre-based continuous quality improvement approach. BMC Health Services Research (2013).