Comparison of the effects of general anesthesia and combined spinal-epidural anesthesia on intraocular pressure in lower extremity surgeries employing pneumatic tourniquets: a randomized clinical trial

Background & Objective: Induction of general anesthesia has been known to raise the intraocular pressure (IOP). The effect is more pronounced at time intubation. Similarly, applying pneumatic tourniquets associated with rise in IOP. We compared effects and combined spinal-epidural (CSEA) on IOP lower extremity surgeries employing tourniquets.
 Methodology: A total 50 patients, aged over 18 y, completed study. Patients were randomly divided into group (Group GA) CSEA CSE). hemodynamic parameters including systolic arterial (SAP), diastolic (DAP), mean (MAP) heart rate (HR),were measured baseline (T0), after induction (T1), intubation or initiation (T2), placement tourniquet (T3), removal (T4).
 Results: There was no difference between groups T0 (P > 0.05), but it higher T2, T3, T4 Group CSE than GA < 0.05). SAP only T3 İn T1, that 0.01) similar T2 SAPs those 0.05) although 0.01). same T4, 0.05).
 Abbreviations: IOP: pressure; CSEA: anesthesia; SAP: DAP: MAP: pressure
 Key words: Intraocular Pressure; Anesthesia, Spinal; General; spinal-epidural; Tourniquet
 Citation: Yildiz G, Gulec H, Ozayar E, Horasanli E. Comparison tourniquets: a randomized clinical trial. Anaesth. pain intensive care 2023;27(1):09−15
 DOI: 10.35975/apic.v27i1.2135
 Received: December 17, 2020; Reviewed: January 27, 2021; Accepted: March 18, 2021