A patient with chronic hypertension is at high risk for the most lethal type of stroke. Which type is it?

• A. Subarachnoid hematoma
• B. Transient ischemic attack
• C. Thrombosis
• D. Intracerebral hemorrhage

Answer: (D)

Chronic hypertension most strongly predisposes to rupture of small brain vessels, leading to an intracerebral hemorrhage, which is the most lethal type of stroke in this setting. Long-standing high blood pressure causes damage to the tiny penetrating arteries in the brain (hyaline arteriolosclerosis and Charcot-Bouchard microaneurysms). When these fragile vessels rupture, blood rapidly accumulates within the brain tissue, causing mass effect, brain swelling, and increased pressure. This can lead to rapid neurological collapse, coma, or herniation, and carries a high mortality rate.

While subarachnoid hemorrhage can also be deadly, it is typically related to rupture of saccular aneurysms rather than chronic hypertension itself. Transient ischemic attack is not lethal and represents temporary blockage, and ischemic stroke due to thrombosis, though serious, is not the specific hypertensive complication described here.