Rheumatic Heart Disease Affects Young, Impoverished Populations

Rheumatic heart disease (RHD) remains a significant global health issue, impacting an estimated 55 million individuals and causing around 360,000 deaths each year, with the majority occurring in low- and middle-income nations. It is the leading acquired heart disease in people under the age of 25 and can result in lifelong disability or premature death.

The condition originates as an autoimmune response to a Group A Streptococcus infection, typically strep throat or a skin infection. In susceptible individuals, the immune system mistakenly attacks the heart valves, leading to inflammation and scarring. This inflammatory phase is known as rheumatic fever, and the resulting chronic damage to the heart valves constitutes RHD.

RHD disproportionately affects children and adolescents in impoverished communities with limited access to healthcare. Poor living conditions and overcrowding are significant contributing factors. Pregnant women with RHD face increased risks of complications such as arrhythmias and heart failure due to increased blood volume placing further strain on damaged valves. This condition is a major cause of maternal and perinatal mortality in endemic regions.

There is no cure for RHD, and valve damage is permanent. Severe cases often necessitate surgical intervention to repair or replace damaged valves. Such procedures can be inaccessible or prohibitively expensive in low-resource settings. Prevention centers on treating streptococcal infections promptly with antibiotics and addressing broader socioeconomic factors that promote infection and limit access to care.