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Alpha Defensin-1 Level Correlates with Periprosthetic Infection Severity following Implant-based Breast
Nikhil Sobti1, Neel Vishwanath1, Thor Stead1
1From the Department of Plastic and Reconstructive Surgery, The Warren Alpert Medical School of Brown University, Providence, R.I.
Plastic and Reconstructive Surgery. Global Open
|January 24, 2024
Summary
Alpha defensin-1 (AD-1) levels accurately indicate the severity of periprosthetic infections after breast reconstruction. Higher AD-1 levels correlate with increased infection signs and predict the need for implant removal, aiding diagnosis and treatment monitoring.
Area of Science:
- Biomedical Science
- Infectious Disease Research
- Surgical Reconstruction
Background:
- Accurate diagnosis of periprosthetic infections is crucial for reducing morbidity after breast reconstruction.
- Alpha defensin-1 (AD-1), an antimicrobial peptide from neutrophils, is investigated as a diagnostic marker.
- This study assesses the correlation between quantitative AD-1 levels and infection severity in patients with suspected periprosthetic infections.
Purpose of the Study:
- To evaluate the relationship between quantitative Alpha defensin-1 (AD-1) levels and the severity of periprosthetic infections in breast reconstruction patients.
- To determine if AD-1 levels can serve as a reliable indicator for infection severity and guide treatment decisions.
- To explore the potential utility of AD-1 in breast implant salvage algorithms.
Main Methods:
- A retrospective review of patients undergoing surgery for suspected infection or prosthesis exchange after breast implant reconstruction.
- Quantitative analysis of Alpha defensin-1 (AD-1) levels in periprosthetic fluid.
- Evaluation of the association between AD-1 levels and clinical outcomes, management strategies, systemic infection markers, and overall infection severity.
Main Results:
- Infected breasts exhibited significantly higher AD-1 levels compared to non-infected ones (3.91 vs. 0.14, P < 0.01).
- Elevated AD-1 levels were associated with increased odds of erythema, purulence, fever, and implant exposure.
- Increasing AD-1 levels independently predicted the need for washout and explant procedures, and correlated with white blood cell count and serum lactate levels.
Conclusions:
- Quantitative Alpha defensin-1 (AD-1) levels correlate strongly with periprosthetic infection severity in breast reconstruction.
- AD-1 shows potential as a diagnostic tool, especially in ambiguous clinical cases and for monitoring treatment response.
- Further research into AD-1 may lead to novel algorithms for breast implant salvage.
