Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO

Patient and the observer will be blinded from the type of needle used for spinal anaesthesia.

All patients will be examined on the day of surgery and there after every day for the next ten

days.

The patients will be assessed on post operative day one for signs of PDPH and followed up

till day ten. After day of discharge, will be followed up via telephonic communication. The

following information will be collected from the anaesthesiologist giving the subarachnoid

block about the type of needle used, size, approach, position, number of attempts, ease of

puncture.

After assessing the patients on POD10 about headache with regards to its severity, onset,

effect of posture and associated symptoms like nausea, vomiting, auditory and ocular

symptoms the patients will be allocated into groups Q and W after obtaining information

regarding the procedure from the anaesthesiologist. Accordingly, assessment of more than the

sample size will be done and patients not satisfying the inclusion criteria will be excluded

based on usage of different type and size of needle used. Study will be concluded once the

sample size is reached.

The collected data will be entered into MS Excel followed by the analysis using SPSS

version 22/R Core Team (2023). The comparison of post dural puncture headache following spinal anaesthesia, ease of

puncture and number of attempts between the two groups will be done using Chi Square test/

Fishers exact test/Proportion test. P value<0.05 will be considered statistically significant.