What complication can occur if Kawasaki disease remains untreated?

Kawasaki disease is a condition that primarily affects children and is characterized by inflammation of the blood vessels, particularly the coronary arteries. If left untreated, one of the most significant complications is the development of heart problems, specifically coronary artery aneurysms and inflammation leading to other cardiovascular issues.

The inflammation of the coronary arteries can result in narrowed arteries due to the formation of plaques, which can increase the risk of heart attacks or other serious heart issues in the future. In addition, the inflammation may lead to myocarditis, pericarditis, or valve disease, all of which can have lasting effects on the heart function.

Prompt diagnosis and treatment of Kawasaki disease with immunoglobulin therapy and aspirin can significantly reduce the risk of these cardiovascular complications, making it crucial to recognize and manage the disease early.