Variability in the Diagnosis of Surgical Site Infections After Full‐Thickness Skin Grafting: An International Survey

Abstract

Background

Diagnosis of a surgical site infection (SSI) in dermatologic surgery can be entirely based on a subjective assessment according to the 4^th criterion of the most common definition of an SSI, which was established by the US Centers for Disease Control (CDC).

Objectives

To investigate the interobserver agreement between dermatologists in their diagnosis of SSI of dermatosurgical wounds.

Methods

An international electronic photographic survey with eight photographs of wounds 1 week after full‐thickness skin grafting (FTSG) was sent to dermatologists. All wounds were assessed in terms of visual criteria beforehand. Data collected from respondents included physician characteristics and experience, and SSI assessments of all wounds.

Results

A total of 393 dermatologists from 27 countries enrolled. Most respondents were from the United States (25%), followed by Sweden (24%) and the United Kingdom (13%). There was only a slight interobserver agreement on SSI suspicion (κ = 0·19). SSI suspicion was lower for male physicians (P = 0·03), board‐certified dermatologists (P = 0·001), physicians regularly assessing surgical wounds (P = 0·03), and physicians performing FTSG (P < 0·001). Swedish physicians diagnosed more SSIs than US physicians (P = 0·002). Erythema was more common in cases with higher SSI suspicion.

Conclusion

This study reveals a broad inter‐rater variability in the diagnosis of SSI, illustrating the need for novel objective diagnostic methods that can better capture the variables that constitute an SSI.

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