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

Chongqing Medical University

Status: Not yet enrolling

Conditions: Postoperative Visceral Pain

Treatments: Other: Observational assessment of clinical outcomes

Study type: Observational

Funder types: Other

Identifiers

NCT07048782

vpclinicaltrial1

Details and patient eligibility

About

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.

Enrollment: 1,135 estimated patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

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.

Trial design

1,135 participants in 2 patient groups

Retrospective Cohort

Description:

This cohort includes 1000 patients whose data were collected retrospectively from existing medical records. No additional follow-up is planned.

Treatment:

Other: Observational assessment of clinical outcomes

Prospective Cohort

Description:

This cohort includes 135 patients enrolled prospectively and followed for 2 days to collect outcomes and relevant clinical data.

Treatment:

Other: Observational assessment of clinical outcomes