Risk factors for surgical site infection in free‐flap reconstructive surgery for head and neck cancer: Retrospective Australian cohort study

Background Surgical site infections (SSI) are common complications of free‐flap reconstruction for head and neck cancer defects. This study aimed to identify risk factors for SSI following a significant change in local antibiotic prophylaxis practice. Methods A retrospective cohort study was conduct...

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Bibliographic Details
Published in:Head & neck 2021-11, Vol.43 (11), p.3417-3428
Main Authors: Gearing, Peter Francis, Daly, John Frederick, Tang, Nicholas Shi Jie, Singh, Kasha, Ramakrishnan, Anand
Format: Article
Language:English
Subjects:
antibiotic prophylaxis
Antibiotics
Classification
Clindamycin
Cohort analysis
Disease prevention
free‐flap
Head & neck cancer
head and neck cancer
Prophylaxis
Reconstructive surgery
Risk factors
surgical site infection
Surgical site infections
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Summary:Background Surgical site infections (SSI) are common complications of free‐flap reconstruction for head and neck cancer defects. This study aimed to identify risk factors for SSI following a significant change in local antibiotic prophylaxis practice. Methods A retrospective cohort study was conducted of 325 patients receiving free‐flap reconstruction for head and neck cancer defects at a tertiary hospital in Melbourne, Australia between 2013 and 2019. Charts were queried for recipient SSI (primary outcome), donor SSI, other infections, antibiotic use, hospital length of stay, and mortality. Results Risk factors for SSI included female sex, T‐classification, hardware insertion, clindamycin prophylaxis, and operative duration. There was a trend toward increased SSI with shorter ≤24 h prophylaxis (OR: 0.43). Conclusion Antibiotic duration and type were associated with SSI. Complexity of surgery, T‐classification, hardware use, and operative duration were also independently associated with SSI. A prospective trial is indicated to elicit optimal prophylactic antibiotic duration.
ISSN:1043-3074
1097-0347
DOI:10.1002/hed.26837