Elevation in optic nerve sheath diameter due to the pneumoperitoneum and Trendelenburg is associated to postoperative nausea, vomiting and headache in patients undergoing laparoscopic hysterectomy

Abstract

BACKGROUND: Optic nerve sheath diameter (ONSD) measurement with ultrasound has emerged as a simple, noninvasive and reliable surrogate of invasive intracranial pressure (ICP) measurement. Increase in ICP might lead to postoperative nausea and vomiting (PONV) and postoperative headache. Here, we aimed to evaluate the extent of change in ONSD., resulting from pneumoperitoneum (PP) and Trendelenburg (rp) position during the laparoscopic hysterectomy (LH), by using ultrasonographic ONSD measurement. We also aimed to investigate the relation of ONSD with PONV and postoperative headache.