Diabetes: a risk factor for catheter-associated infections

Area of Science:

• Anesthesiology
• Infectious Diseases
• Diabetology

Background:

• Continuous regional anesthesia is widely used but carries a risk of infectious complications.
• The impact of diabetes mellitus on these infectious risks is not fully elucidated.
• Understanding these risks is crucial for patient safety in regional anesthesia.

Purpose of the Study:

• To investigate the association between diabetes and the incidence of catheter-related infectious complications.
• To determine if diabetes is an independent risk factor for infections in patients receiving continuous regional anesthesia.
• To identify specific sites where diabetic patients may face increased infection risks.

Main Methods:

• Analysis of the German Network for Regional Anaesthesia database (2007-2012).
• Inclusion of 36,881 patients undergoing continuous regional anesthesia, categorized into diabetic and non-diabetic groups.
• Statistical analysis using t-tests, chi-squared tests, and logistic regression to assess infection rates and risk factors.

Main Results:

• Diabetic patients exhibited a significantly higher incidence of catheter-related infections (4.2%) compared to non-diabetic patients (3.0%).
• Diabetes was confirmed as an independent risk factor for infections across all sites (OR = 1.26).
• Increased infection risk was observed in peripheral catheters in the lower limb (aOR = 2.42) and lumbar epidural catheters (aOR = 2.09) for diabetic patients.

Conclusions:

• Diabetes mellitus is associated with an elevated risk of catheter-related infections, particularly in the lower limb and with lumbar epidural anesthesia.
• Healthcare providers should implement targeted strategies for infection prevention and early detection in diabetic patients undergoing regional anesthesia.
• Further research may explore specific mechanisms linking diabetes to increased susceptibility to catheter-related infections.