<prompt> Which is false regarding post dural puncture headache?Incidence is reduced by pencil point spinal needlesDefinitive cure is obtained with epidural blood patchHead ache is aggravated by sitting and relieved by lying downLonger the duration anesthesia , greater will be the chance of developing PDPH  <response>: predisposing factors for PDPH Age: Younger, more frequent Sex: Females males Needle size: Larger smaller Needle bevel: Less when the needle bevel is placed in the long axis of the neuraxis Orienting a needle bevel parallel with the axis of the spine, such that the longitudinal fibers of the dura would more likely be separated than cut, results in a lower incidence of postspinal puncture headache Pregnancy: More when pregnant Dural punctures: More with multiple punctures Factors That Do Not Increase the Incidence of Headache After Spinal Puncture Inseion and use of catheters for continuous spinal anesthesia Timing of ambulation duration of surgery 