After a normal prenatal period, a lady delivered a child and l hour later she had a stroke. Probable cause:
**Core Concept**
Postpartum stroke can occur due to several reasons, but one of the most common causes is the formation of a blood clot in the cerebral veins or sinuses, also known as postpartum cerebral angiopathy (PPCA). This condition is often associated with a significant increase in blood volume and blood pressure during pregnancy and the postpartum period.
**Why the Correct Answer is Right**
The probable cause of stroke in this scenario is related to the increased blood volume and blood pressure, which can lead to the formation of a blood clot in the cerebral veins or sinuses. This condition is often seen in women with a history of hypertension or those who have had a previous history of PPCA. The exact mechanism is not fully understood, but it is thought to be related to the increased levels of estrogen and progesterone during pregnancy, which can cause vasodilation and increased blood volume.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because cerebral vasculitis is not a common cause of postpartum stroke. While it is a possible cause of stroke in general, it is not specifically related to the postpartum period.
**Option B:** This option is incorrect because a cerebral aneurysm rupture is not typically associated with the postpartum period. While aneurysms can rupture at any time, the postpartum period is not a high-risk time for this to occur.
**Option C:** This option is incorrect because a cardiac embolism is not a common cause of postpartum stroke. While cardiac embolism can occur at any time, it is not specifically related to the postpartum period.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that postpartum stroke can occur due to a variety of causes, including PPCA, and that prompt recognition and treatment are crucial to prevent long-term damage.
**Correct Answer: D.**