Development and Validation of a Risk Prediction Model for Postoperative Visceral Pain in Abdominal Surgery Patients

N/ANot Yet RecruitingNCT07048782

The Second Affiliated Hospital of Chongqing Medical University1,135 enrolled

Overview

This study aims to investigate the factors influencing the risk of postoperative visceral pain in patients undergoing abdominal surgery. The goal is to develop and validate a predictive model for assessing the risk of postoperative visceral pain, in order to guide individualized preoperative interventions and pain management strategies.

Study Type

OBSERVATIONAL

Enrollment

1,135

Conditions

Postoperative Visceral Pain

Interventions

Observational assessment of clinical outcomesOTHER

This is a non-interventional observational study. No treatment or behavioral intervention is administered.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients undergoing elective abdominal surgery under general anesthesia (including gynecological procedures and general surgery such as gastrointestinal, hepatobiliary, etc.); * Aged between 18 and 70 years; * Classified as American Society of Anesthesiologists (ASA) physical status II-III; * Expected surgery duration ≥ 2 hours. Exclusion Criteria: * History of previous abdominal surgery; * Diagnosed with chronic pain; * Long-term use of analgesics or other psychotropic medications; * Preoperative emergency condition; * Presence of severe comorbidities involving major organ systems; * Failure to complete postoperative pain follow-up.

Locations (1)

Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University

Chongqing, Chongqing Municipality, China

Outcomes

Primary Outcomes

Pain intensity after surgery

Pain intensity will be recorded at 6, 12, 24, and 48 hours after surgery. At each time point, the Numerical Rating Scale (NRS) pain score will be assessed both at rest and during coughing. Pain intensity was assessed using number rating scale (0-10, higher score represents worse pain intensity)

Time frame: From end of surgery to 48 hours postoperatively

Secondary Outcomes

Postoperative Length of Hospital Stay

The total time from the end of surgery to hospital discharge will be recorded for each patient. The duration will be measured in days (d) and used to assess postoperative recovery.

Time frame: From end of surgery to hospital discharge (up to 30 days)

Postoperative Analgesic Use

Detailed records will be kept of the types of analgesics administered postoperatively, the total dosage of each drug, and the frequency of use per day. This measure will help assess pain management and medication requirements after surgery.

Time frame: From end of surgery to hospital discharge (up to 30 days)

Central Contacts

Guangyou Duan, PhD

CONTACT

(+86)18323376014 duangy@hospital.cqmu.edu.cn

Data from ClinicalTrials.gov

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