• Suratsawadee Wangnamthip, Skaorat Panchoowong, Carolina Donado, Kimberly Lobo, Pimporn Phankhongsap, Pinyo Sriveerachai, Pramote Euasobhon, Pranee Rushatamukayanunt, Sahatsa Mandee, Nantthasorn Zinboonyahgoon, and Charles B Berde.
• Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
• Pain Res Manag. 2021 Jan 1; 2021: 5599023.

ObjectivesThe objective was to examine the effectiveness of the updated approach.MethodsWith IRB approval, outpatients with cancer were enrolled from January to December 2018. Assessments were recorded at baseline and three consecutive visits (BL, FU1, FU2, and FU3), including Numerical Rating Scale (NRS), the Brief Pain Inventory (BPI), the Edmonton Symptom Assessment System (ESAS), side effects, and analgesic use. The primary outcome was a favorable response, defined as an NRS decrease more than 30% or NRS <4. Secondary outcomes included trends over time in BPI, ESAS, side effects, and analgesic use. Pain response predictors at FU3 were analyzed using logistic regression.ResultsAmong 150 patients, 72 (48%) completed follow-ups. Of these, 61% achieved a favorable response at FU3. Pain interference diminished at all visits relative to baseline (p < 0.05). Median morphine equivalent daily dosage (MEDD) at BL was 20 mg/day, with a statistically significant, but clinically modest increase to 26.4 mg/day at FU3. Radiation therapy during pain care was a predictor of pain responders.ConclusionThe current Siriraj multidisciplinary approach provided effective relief of pain and stabilization of other cancer-related symptoms. Radiation therapy during pain care can be used to predict pain outcomes. Ongoing improvement domains were identified and considered in the context of cultural, economic, and geographic factors.Copyright © 2021 Suratsawadee Wangnamthip et al.

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