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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

1135 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-07-01

Study Completion Date

2026-01-30

Brief Summary

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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.

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Detailed Description

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Conditions

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Postoperative Visceral Pain

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Study Groups

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Retrospective Cohort

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

Observational assessment of clinical outcomes

Intervention Type OTHER

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

Prospective Cohort

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

Observational assessment of clinical outcomes

Intervention Type OTHER

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

Interventions

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Observational assessment of clinical outcomes

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

Intervention Type OTHER

Eligibility Criteria

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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.

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No