A COMPARATIVE STUDY TO ASSESS THE EFFICACY AND SAFETY OF SPHENOPALATINE GANGLION BLOCK WITH LIGNOCAINE 2% VERSUS ROPIVACAINE 0.75% FOR RELIEVING POSTDURAL PUNCTURE HEADACHE - A RANDOMIZED CONTROL STUDY

Postdural puncture headache (PDPH) is a common complication of neuraxial techniques with an incidence of 1- 2%. It is classified by the International Classification of Headache Disorders 3rd edition (ICHD-3) as a headache attributed to low cerebrospinal fluid (CSF) pressure, caused (1) by loss of CSF exceeding its production rate . PDPH can be debilitating, with severe implications affecting daily activities, delaying recovery and extending hospital stay with associated health care costs.