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A Descriptive Study of Bacterial Load of Full-Thickness Surgical Wounds in Dermatologic Surgery.

In English

Författare

Summary, in English

BACKGROUND Surgical site infections (SSIs) after dermatologic surgery cause pain, prolong healing, result in unaesthetic complications, and lead to excessive use of antibiotics. The pathogenesis of wound infections is complex and is dependent on bacterial load and diversity, among several factors. OBJECTIVE To investigate bacterial dynamics at dermatosurgical sites at different time intervals and assess the correlation with postoperative outcomes and to examine different endo- and exogenous factors that may contribute to SSIs. METHODS Eighteen patients undergoing skin grafting of the face were studied. The following SSI-related factors were registered: age and sex of the patient, ulceration of the lesion, diabetes, immunosuppressive therapy, smoking, anticoagulative therapy, and use of antibiotic prophylaxis. Wounds from each patient were swabbed preoperatively, intraoperatively, and postoperatively. The bacterial composition of the swabs was then analyzed quantitatively and qualitatively. RESULTS Sixteen of 18 surgical sites contained varying quantities of surface-associated bacteria. Coagulase-negative staphylococci and Propionibacterium acnes were the predominant bacteria isolated at all times. Intraoperative analysis was not predictive of SSIs. Use of antibiotic prophylaxis was the only registered SSI-related factor that showed significant variation in bacterial load between pre- and postoperative samples. Postoperative bacterial load was found to be lower than preoperative load in patients who received antibiotics. This was in contrast to patients who did not receive antibiotics, who had significantly higher postoperative levels (p=.02). The presence of high postoperative bacterial loads, regardless of the bacterial species isolated, showed a statistically significant positive correlation with a complicated postoperative outcome (p≤.001). CONCLUSIONS This study provides novel insights into the bacterial dynamics of dermatologic surgery-induced wounds and the variation of this over time. The results highlight the potential relevance of quantifying bacterial loads, as well as determining specific types of bacteria, in dermatologic surgery. The authors have indicated no significant interest with commercial supporters.

Publiceringsår

2011

Språk

Engelska

Sidor

1014-1022

Publikation/Tidskrift/Serie

Dermatologic Surgery

Volym

37

Dokumenttyp

Artikel i tidskrift

Förlag

BC Decker

Ämne

  • Dermatology and Venereal Diseases
  • Microbiology in the medical area

Status

Published

Forskningsgrupp

  • Clinical Microbiology, Malmö

ISBN/ISSN/Övrigt

  • ISSN: 1524-4725