Question

Most common cause of dissecting hematoma is because of:

• A. Hypertension
• B. Marfan's syndrome
• C. Iatrogenic
• D. Kawasaki disease

Hint:

Which single risk factor is present in over 90 percent of aortic dissections?

Answer 1

The Correct Option is A

Step 1: Aortic dissection (dissecting hematoma) results from a tear in the intima that lets blood track into the media, splitting the wall. The predisposing factor in the vast majority of cases is hypertension.

Step 2: More than 90 percent of dissections occur in men aged 40 to 60 years with antecedent hypertension, which weakens and stresses the aortic media. Hence option a is correct.

Step 3: Marfan syndrome and other connective tissue disorders cause dissection in younger patients but are far less common overall. Iatrogenic causes (catheterisation, surgery) are uncommon, and Kawasaki disease affects coronary arteries rather than producing classic aortic dissection, so options b, c and d are not the most common cause.