Related Experiment Video
Updated: Feb 8, 2026

Enhanced Oil Recovery using a Combination of Biosurfactants
Published on: June 3, 2022
Narcotic-Dependent Patients Derive Equal Benefit from Enhanced Recovery
1Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA.
Abstract:
Areas of the southeast United States have endemic levels of prescription drug use, diversion, and abuse. Because preoperative narcotics use is associated with increased surgical morbidity and increased readmission rates, there is a compelling need to categorize health outcomes of patients maintaining an active opioid prescription. The purpose of this study is to determine the health outcomes of preoperative narcotic users who undergo colorectal surgery within the enhanced recovery (ER) protocol, a set of multimodal interventions designed to reduce postoperative complications. Five hundred and five colorectal surgery patients were identified within the ER protocol at Carilion Clinic. Opioid dependence was defined as an active prescription for 30 days before surgery. Thirty-day outcome variables were defined by the National Surgical Quality Improvement Program. One hundred and one patients were identified as opioid dependent and 404 as opioid naïve. Groups were comparable in terms of age at surgery, mean body mass index, and presurgical physical classification. Groups fared similarly with regard to readmission (χ2, P > 0.999), reoperation (χ2, P = 0.869), and average length of stay [t(135) = 1.49, P = 0.137]. These preliminary data show that opioid-dependent patients derive benefit equal to opioid-naïve patients within the ER protocol.
Related Concept Videos
Benefits of Self-Esteem
One-Way ANOVA: Equal Sample Sizes
Different sample means can result in different values for the variance estimate: variance between samples. This is because the variance between samples is calculated as the product of the sample size and the variance between the...
Electric Field of Two Equal and Opposite Charges
A separation of the positive and negative charges can lead to a weak, remnant effect of the positive and negative charges. The expectation is that the more the distance between the positive and...
Self-Evaluation: Self-Enhancement and Self-Verification
Frequency-dependent Selection
Drug Dependence

