Bilateral Greater Occipital Nerve Block; Distal Versus Proximal Approach for Postdural Puncture Headache: A Randomized Clinical Trial.

Background: One of the common neuraxial anesthesia complications is postdural puncture headache (PDPH). Greater occipital nerve block (GONB) is a simple and safe maneuver with a faster onset than other treatment modalities.

Objectives: Our work aims to compare the pain-relieving effect between distal and proximal ultrasound (US)-guided bilateral GONBs for PDPH.