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Preoperative Metal Patch Testing and Titanium Bar Use Criteria in Nuss Procedure: A 56-Patients' Cohort Study
Joana Pereira-Nunes1,2, Sofia Vasconcelos-Castro3, José Fontoura-Matias1,2
1Department of Pediatrics, Centro Hospitalar Universitário de São João Ringgold Standard Institution, Porto, Porto, Portugal.
Summary
Routine preoperative metal allergy testing and selective titanium bar use in the Nuss procedure are safe and effective in preventing allergic complications. This approach minimizes adverse reactions in patients undergoing pectus excavatum repair.
Area of Science:
- Thoracic surgery
- Pediatric surgery
- Allergy testing
Background:
- The Nuss procedure frequently utilizes metal implants, raising concerns about potential allergic complications.
- Current strategies to avoid metal allergies in Nuss procedure patients are debated.
- This study evaluates an 8-year experience with preoperative metal patch testing and selective titanium bar use.
Purpose of the Study:
- To assess the safety and efficacy of routine preoperative metal patch testing.
- To determine the impact of selective titanium bar use on allergic complications.
- To evaluate the clinical outcomes of patients undergoing the Nuss procedure with this protocol.
Main Methods:
- Retrospective observational cohort study (2013-2020) of 56 patients.
- Systematic preoperative metal patch testing performed for all patients.
- Titanium bar selection based on positive patch tests or history of allergies.
Main Results:
- 19.6% of patients had positive metal patch tests; 54.5% had no prior atopy history.
- Titanium bars were used in 72.7% of patients requiring them.
- One minor allergic reaction reported; no early bar removals needed.
Conclusions:
- Routine preoperative allergy testing is a safe and effective strategy.
- Judicious use of titanium bars successfully avoids metal allergic complications.
- This protocol enhances patient safety in the Nuss procedure.
