Pulse-oximetry Derived Perfusion Index as a Predictor of the Efficacy of Rescue Analgesia After Major Abdominal Surgeries

Abstract

Data were collected from 40 non-intubated adult patients admitted to the surgical intensive care unit postoperatively. The Masimo pulse cooximetry perfusion index (PI) probe was attached to the patient. At the time of the first request for analgesia (T1), the Behavioural pain scale nonintubated scoring system (BPS-NI) was recorded with the PI and patients' haemodynamics following which rescue analgesia was given. Thirty minutes thereafter (T2), second measurements for the mentioned parameters were taken.