Related Experiment Video
Updated: Feb 12, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram
Published on: July 7, 2023
Independent Predictors for Higher Postoperative Pain Intensity During Recovery After Open Thoracic Surgery: A
Sandra Kampe1,2, Martin Wendland1, Stefan Welter3
1Departments of Anesthesiology and Pain Medicine.
Epidural analgesia significantly reduced postoperative pain after thoracic surgery compared to oral opioids. Key risk factors for increased pain include lack of epidural use, female gender, and prior opioid or antidepressant use.
Area of Science:
- Thoracic Surgery
- Pain Management
- Anesthesiology
Background:
- Postoperative pain following thoracic surgery is a significant clinical challenge.
- Optimizing pain management strategies is crucial for patient recovery and outcomes.
Purpose of the Study:
- To compare the efficacy of two standard pain regimens: oral opioid analgesia versus epidural analgesia bridged to systemic opioids.
- To identify independent predictors of higher pain intensity after thoracic surgery.
Main Methods:
- Retrospective observational study of 621 patients undergoing open thoracotomy.
- Analysis of medical history, discharge letters, and anesthetic/pain protocols.
- Multivariate logistic regression using stepwise backward elimination to identify risk factors.
Main Results:
- The epidural analgesia plus opioid group (EDA + O) showed significantly lower pain scores at rest and on coughing on postoperative days (PODs) 1-4 compared to the Opioid Group.
- Independent risk factors for higher pain intensity included: no epidural analgesia, preexisting pain disease, preoperative opioid therapy, and antidepressant medication.
- Male gender and younger age were associated with lower pain on coughing; preexisting musculoskeletal disease was linked to lower pain at rest on later PODs.
Conclusions:
- Lack of postoperative epidural analgesia, female gender, preexisting opioid pain therapy, and chronic pain are strong predictors of higher pain intensity after thoracotomy.
- Antidepressant medication is an independent risk factor for pain at rest and on coughing throughout the postoperative period.
More Related Videos
Related Concept Videos
Introduction to Test of Independence
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
Hypothesis Test for Test of Independence
H0: The two variables (factors)...
Thoracic Aorta
Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
Law of Independent Assortment
Analysis Methods of Pharmacokinetic Data: Model and Model-Independent Approaches
The model approach uses mathematical models to describe changes in drug concentration over time. Pharmacokinetic models help characterize drug behavior in patients, predict drug concentration in the body fluids, calculate optimum dosage regimens, and evaluate the risk of toxicity. However, ensuring that the model fits the experimental data accurately...

