Spinal needles

• needle 의 diameter에 따른 특징
1. small needles : post-dural puncture headache 감소 시킴.
2. larger needles : improves the tactile sense of needle placement
3. Pencil-point needles : tactile sensation도 좋고, PDPH의 비율도 감소. 25, 26, 27 G needle을 사용.

Reference

Miller’s Anesthesia, 8th edition, Ch.56, P.1699