Postdural puncture headaches characteristically worsen with which posture?

Postdural puncture headaches characteristically worsen with which posture?

• A. Worse with upright posture
• B. Worse with lying flat
• C. No posture effect
• D. Improves with caffeine

Answer: (A)

Postdural puncture headache is an orthostatic headache caused by CSF leakage after a dural puncture. When upright, gravity lowers CSF pressure further and the brain sags slightly within the skull, causing traction on pain-sensitive structures such as the meninges and cranial nerves. This increases the headache. Lying flat raises CSF pressure and reduces this downward traction, so the pain diminishes. Understanding this posture-dependent change is key: the headache worsens with standing or sitting and improves with lying down. Caffeine can help by vasoconstriction and increasing CSF production, but the hallmark feature is the worsening with upright posture. Definitive treatment to seal the leak is an epidural blood patch.

Postdural puncture headache is an orthostatic headache caused by CSF leakage after a dural puncture. When upright, gravity lowers CSF pressure further and the brain sags slightly within the skull, causing traction on pain-sensitive structures such as the meninges and cranial nerves. This increases the headache. Lying flat raises CSF pressure and reduces this downward traction, so the pain diminishes. Understanding this posture-dependent change is key: the headache worsens with standing or sitting and improves with lying down. Caffeine can help by vasoconstriction and increasing CSF production, but the hallmark feature is the worsening with upright posture. Definitive treatment to seal the leak is an epidural blood patch.