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An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
Published on: January 27, 2010
Development and Validation of a Nomogram for Predicting Acute Postoperative Pain After Orthognathic Surgery
Li-Kuan Wang1, Hai-Yin Wu1, Xu-Dong Yang2
1Associate Chief Physician, Department of Anesthesiology, Peking University Hospital of Stomatology, Beijing, China.
Summary
Predicting moderate-to-severe acute postoperative pain (APP) after orthognathic surgery is possible. Preoperative anxiety, pain catastrophizing, and intraoperative medications are key predictors, enabling early risk stratification for better pain management.
Area of Science:
- Oral and Maxillofacial Surgery
- Pain Medicine
- Anesthesiology
Background:
- Identifying patients at high risk for acute postoperative pain (APP) is crucial for effective pain management strategies.
- Orthognathic surgery patients are susceptible to significant postoperative pain.
- Developing predictive models can aid in personalized pain management protocols.
Purpose of the Study:
- To develop and validate a predictive model for acute postoperative pain (APP) in patients undergoing orthognathic surgery.
- To identify independent predictors of moderate-to-severe APP.
- To create a tool for early risk stratification of postoperative pain.
Main Methods:
- A retrospective cohort study included 566 adult patients undergoing orthognathic surgery.
- Predictor variables included demographic, psychological, surgical, and perioperative factors.
- A predictive model was developed using logistic regression and validated on a separate dataset, assessing performance via AUC, calibration, and decision curve analysis.
Main Results:
- The final model identified preoperative State-Trait Anxiety Inventory-Trait score, preoperative pain catastrophizing scale score, intraoperative remifentanil dose, and intraoperative/PACU dexmedetomidine use as independent predictors of moderate-to-severe APP.
- The model demonstrated good predictive performance with an Area Under the Curve (AUC) of 0.848 in the training set and 0.829 in the validation set.
- High sensitivity and specificity were achieved in both training and validation sets, indicating robust diagnostic capabilities.
Conclusions:
- Preoperative psychological factors and intraoperative anesthetic management independently predict moderate-to-severe acute postoperative pain following orthognathic surgery.
- A validated nomogram can effectively stratify patients by their risk of developing significant postoperative pain.
- This tool facilitates individualized interventions to optimize perioperative pain control and improve patient outcomes.