MEASUREMENT OF INTRAOCULAR-PRESSURE DURING LAPAROSCOPY AND ITS RELATIONSHIP TO CENTRAL VENOUS-PRESSURE

Study Objective. To determine the effect of different positional degre es on hemodynamics, especially central venous pressure and intraocular pressure, and a possible interrelationship, during laparoscopic surge ry. Setting. University teaching hospital (Canadian Task Force classif ication II-1). Patients. Seven women undergoing elective gynecologic l aparoscopy. Interventions. The women were monitored for heart rate, pa rtial pressure oi oxygen, end-tidal carbon dioxide, arterial blood pre ssure, central venous pressure, end-tidal isoflurane concentration, an d intraocular pressure in several body positions during general anesth esia. Measurements and Main Results. Intraocular pressure depends on b ody position (r(2) = 0.58) related to central venous pressure (r(2) = 0.7). Heart rate and arterial blood pressure are also dependent on the body position, but to a lesser degree. Conclusion. Continuous monitor ing of intraocular pressure may help detect alterations in central ven ous pressure during general anesthesia for laparoscopic surgery. Undes irable alterations caused by degree oi Trendelenburg position may nega tively affect patients with high cardiac or ophthalmic risk.