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Updated: Apr 14, 2026

Surgical Correction for Pediatric Epiblepharon and Trichiasis
Published on: July 8, 2025
Surgical wound classification for pediatric appendicitis remains poorly documented despite targeted interventions
Luke R Putnam1, Shauna M Levy1, Galit Holzmann-Pazgal2
1Center for Surgical Trials and Evidence-based Practice, Departments of Pediatric Surgery and Surgery, The University of Texas Health Science Center at Houston, Houston, TX; Children's Memorial Hermann Hospital, Houston, TX.
Insights
Simple interventions significantly improved surgical wound class (SWC) agreement for appendicitis, enhancing surgical site infection (SSI) risk stratification. Further education is needed to close knowledge gaps.
Area of Science:
- Surgical Quality Improvement
- Infection Control
- Patient Safety
Background:
- Surgical wound class (SWC) is crucial for reporting surgical site infections (SSIs).
- Previous studies showed poor agreement (8%) between hospital-based and diagnosis-based SWC for appendicitis.
- This highlights a need for improved SWC accuracy in clinical practice.
Purpose of the Study:
- To assess if education and process interventions can improve hospital-based SWC reporting.
- To enhance the validity of SWC for SSI risk stratification in pediatric appendectomies.
- To determine the impact of interventions on SWC accuracy and consistency.
Main Methods:
- A pre- and post-intervention study included pediatric appendectomy patients (<18 years).
- Interventions involved educational workshops and integrating SWC into the surgical safety checklist.
- Data on 30-day postoperative SSIs were collected and analyzed using statistical tests.
Main Results:
- Weighted interrater agreement between hospital-based and diagnosis-based SWC improved from 50% to 81% (p<0.01).
- Weighted kappa increased from 0.16 to 0.29, indicating better agreement.
- Post-intervention, hospital-based dirty wounds were significantly linked to SSIs (p<0.01).
Conclusions:
- Simple educational and process interventions significantly improved SWC agreement for appendicitis.
- Post-intervention SSI risk stratification aligned better with expected disease severity.
- Despite improvements, persistent gaps in SWC knowledge and application require attention.
Background/Purpose:
Surgical wound class (SWC) is used to risk-stratify surgical site infections (SSI) for quality reporting. We previously demonstrated only 8% agreement between hospital-based SWC and diagnosis-based SWC for acute appendicitis. We hypothesized that education and process-based interventions would improve hospital-based SWC reporting and the validity of SSI risk stratification.
Methods:
Patients (<18 years old) who underwent appendectomies for acute appendicitis between January 2011 and December 2013 were included. Interventions entailed educational workshops regarding SWC for perioperative personnel and inclusion of SWC as a checkpoint in the surgical safety checklist. Thirty-day postoperative SSIs were recorded. Chi-square, Fisher's exact test, and kappa statistic were utilized.
Results:
995 cases were reviewed (pre-intervention=478, post-intervention=517). Weighted interrater agreement between hospital-based and diagnosis-based SWC improved from 50% to 81% (p<0.01), and weighted kappa increased from 0.16 (95% CI 0.004-0.03) to 0.29 (95% CI 0.25-0.34). Hospital-based dirty wounds were significantly associated with SSI in the post-intervention period only (p<0.01).
Conclusions:
Agreement between hospital-based SWC and diagnosis-based SWC significantly improved after simple interventions, and SSI risk stratification became consistent with the expected increase in disease severity. Despite these improvements, there were still substantial gaps in SWC knowledge and process.
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