Post lumbar puncture headache is minimized by all except:
Keep stylet and remove needle
Atraumatic needle
Small diameter needle
Hydration by crystalloid infusion
(Refer: Lee’s, Clinical Anaesthesia, 12th edition, pg no:685-687)
Post-Lumbar Puncture Headache
Etiology
CSF leak leading to decreased ICP
Breach or scratching of dura due to:

Lumbar puncture
Myelogram
Spinal Anaesthesia
Wet epidural tap
Uncomplicated epidural due to scratching of dura

Factors affecting post lumbar puncture headache