Turkish Journal of Anaesthesiology and Reanimation, cilt.48, sa.3, ss.208-214, 2020 (ESCI)
Objective: We aimed to test the efficacy of the pre-operative Pleth variability index (PVI) in evaluating hypotension that developed after spinal anaesthesia in patients who were spontaneously breathing, pre-operatively hypovolemic, and were at an advanced age.