Background: Positive pressure pneumoperitoneum (PP) may involve adverse pathophysiological changes, including increased intra-thoracic and ocular pressure, when combined with standard ventilation. High frequency jet ventilation (HFJV) was reported to reduce the adverse cardiovascular effects during laparoscopic cholecystectomy. Aim: To study the effects of HFJV on intra-ocular pressure changes (reflecting intra-cranial pressure) during laparoscopic surgery under PP.
Age range
18 Years
Sex
ALL
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Intra-ocular pressure
Timeframe: During procedure