Post-dural puncture headache (PDPH) is a common complication of spinal anesthesia. The incidence of PDPH is significantly influenced by the needle characteristics and technique. Using a smaller gauge needle (e.g., 25-gauge vs. 22-gauge) creates a smaller hole in the dura, reducing CSF leakage. More importantly, the use of a pencil-point (non-cutting) needle, such as a Sprotte or Whitacre needle, separates the dural fibers rather than cutting them, allowing them to re-approximate more effectively and further decreasing CSF leakage. Younger patient age (typically < 50 years) and multiple dural puncture attempts are known risk factors for increasing the incidence of PDPH.
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