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A Simplified Technique for Producing an Ischemic Wound Model
12:00

A Simplified Technique for Producing an Ischemic Wound Model

Published on: May 2, 2012

Foot infections in diabetes are rarely due to a single microorganism

J A Hunt1

  • 1Diabetes Day Centre, Lions Gate Hospital, North Vancouver, B.C., Canada.

Diabetic Medicine : a Journal of the British Diabetic Association
|October 1, 1992
PubMed

Insights

Proper specimen handling significantly increases the detection of multiple bacteria in diabetic foot infections. This study found anaerobic bacteria are common, while Staphylococcus aureus is often absent.

Area of Science:

  • Microbiology
  • Diabetic Foot Infections
  • Infectious Diseases

Background:

  • Diabetic foot infections are polymicrobial and challenging to treat.
  • Accurate identification of causative organisms is crucial for effective management.
  • Current diagnostic methods may underreport microbial diversity.

Purpose of the Study:

  • To determine the frequency of multiple organism isolation in diabetic foot infections.
  • To evaluate the impact of specimen collection and processing techniques.
  • To compare microbial yield across different healthcare settings.

Main Methods:

  • Prospective study involving 52 patient admissions with severe diabetic foot infections.
  • Standardized collection, transport, and processing of culture specimens.
  • Quantitative analysis of isolated organisms per infection and per lesion.

Main Results:

  • A mean of 3.4 organisms per infection was isolated at the district hospital.
  • Compared to university (2.1) and community (2.3) hospitals, higher yields were observed with optimized techniques.
  • Staphylococcus aureus was present in about half of lesions; anaerobic organisms were frequently isolated (30 at district hospital).

Conclusions:

  • Optimized specimen handling is critical for isolating polymicrobial flora in diabetic foot infections.
  • Anaerobic bacteria are prevalent, and Staphylococcus aureus may be less common than previously thought.
  • Improved diagnostic protocols can enhance the understanding and treatment of these complex infections.

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