Which childhood illness is linked to potential damage to heart valves, especially the mitral valve?

• A. Did you ever have strep throat during childhood?
• B. Have you had a recent episode of pneumonia?
• C. Do you frequently get urinary tract infections?
• D. Do you have a family history of heart attack or angina?

Answer: (A)

Having strep throat during childhood is linked to potential damage to heart valves, especially the mitral valve, due to rheumatic fever. When a streptococcal throat infection isn’t treated promptly, the body’s immune response can mistakenly attack heart tissue, causing rheumatic carditis. This inflammation can scar the valve leaflets over time, most often affecting the mitral valve and leading to stenosis or regurgitation later in life.

The other scenarios don’t typically cause this kind of valve damage. Pneumonia is a lung infection, urinary tract infections involve the urinary system, and a family history of heart disease relates more to coronary risk than to rheumatic valve disease. Prompt treatment of strep throat with antibiotics helps prevent rheumatic fever and protects the valves.