Tokyo, Sept. 12 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000062885) titled 'Postoperative pain management and associated factors in patients with preoperative opioid use: a retrospective cohort study' on Sept. 11.

Study Type: Observational

Primary Sponsor: Institute - Keio University School of Medicine

Condition: Condition - chronic pain, cancer pain Classification by malignancy - Malignancy Genomic information - NO

Objective: Narrative objectives1 - Postoperative pain management in chronic opioid users is challenging due to the narrow therapeutic window caused by opioid tolerance, opioid-induced hyperalgesia, and withdrawal risks. Although we implemented a protocol based on our previous institutional evidence, diversifying patient backgrounds and psychosocial factors now complicate care. This retrospective study aims to comprehensively evaluate the actual status of postoperative pain management and identify factors associated with inadequate pain control in preoperative opioid users, thereby improving perioperative management strategies. Basic objectives2 - Safety,Efficacy

Eligibility: Age-lower limit - 20 years-old <= Age-upper limit - Not applicable Gender - Male and Female Key inclusion criteria - Adult patients who underwent general anesthesia at our hospital and were using opioids prior to surgery. Key exclusion criteria - Individuals who have requested not to participate in this study Target Size - 180

Recruitment Status: Recruitment status - Preinitiation Date of protocol fixation - 2026 Year 09 Month 11 Day Anticipated trial start date - 2026 Year 11 Month 30 Day Last follow-up date - 2029 Year 03 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072006

Disclaimer: Curated by HT Syndication.