Which is the most serious systemic complication associated with Kawasaki disease?

Which is the most serious systemic complication associated with Kawasaki disease?

• A. Renal Failure
• B. Pulmonary Edema
• C. Aortic Dissection
• D. Coronary Artery Aneurysms

Answer: (D)

Kawasaki disease is a pediatric vasculitis that can involve the heart, especially the coronary arteries. The most serious systemic complication is the development of coronary artery aneurysms. When the coronary artery walls become inflamed and weakened, aneurysmal dilation can form. These aneurysms can then thrombose or lead to narrowing (stenosis), reducing blood flow to the heart muscle and causing myocardial ischemia or infarction. This risk is the primary reason coronary artery aneurysms are considered the most serious complication, with potential for long-term cardiac problems or even sudden death if not addressed promptly. Early treatment with intravenous immunoglobulin and aspirin significantly lowers the chance of aneurysm formation. Other listed issues like renal failure, pulmonary edema, or aortic dissection are not typical or as dangerous complications of Kawasaki disease.

Kawasaki disease is a pediatric vasculitis that can involve the heart, especially the coronary arteries. The most serious systemic complication is the development of coronary artery aneurysms. When the coronary artery walls become inflamed and weakened, aneurysmal dilation can form. These aneurysms can then thrombose or lead to narrowing (stenosis), reducing blood flow to the heart muscle and causing myocardial ischemia or infarction. This risk is the primary reason coronary artery aneurysms are considered the most serious complication, with potential for long-term cardiac problems or even sudden death if not addressed promptly. Early treatment with intravenous immunoglobulin and aspirin significantly lowers the chance of aneurysm formation. Other listed issues like renal failure, pulmonary edema, or aortic dissection are not typical or as dangerous complications of Kawasaki disease.