Impact of Glycemic Control on Surgical Site Infections in Neuromodulation Pain Procedures: A Retrospective Analysis

Julissa Mireles1, Albert Huh2, Jian Wang3

  • 1Tilman J. Fertitta Family College of Medicine at University of Houston, Houston, TX.

Pain Physician
|December 3, 2025
PubMed
Abstract

Insights

Patients with diabetes mellitus, particularly Type 1, and elevated HbA1c levels face higher surgical site infection risks after neuromodulation procedures. Optimizing glycemic control is crucial for improving outcomes in these patients.

Area of Science:

  • Neuromodulation
  • Diabetes Mellitus Management
  • Surgical Site Infections (SSIs)

Background:

  • Surgical site infections (SSIs) are common postoperative complications, increasing morbidity, mortality, and healthcare costs.
  • Diabetes mellitus (DM) is a significant risk factor for SSIs, with poor glycemic control exacerbating this risk.
  • Optimal glycemic targets for neuromodulation procedures, a growing field, are not well-established, necessitating further investigation.

Purpose of the Study:

  • To investigate the association between diabetes mellitus (Type 1 and Type 2), glycemic control (HbA1c, perioperative glucose), and insulin use with postoperative infection risk following neuromodulation procedures.
  • To compare the infection risks associated with different diabetes profiles and glycemic management strategies in patients undergoing neuromodulation.

Main Methods:

  • A single-center retrospective chart review was conducted at the University of Texas MD Anderson Cancer Center.
  • Data from 297 neuromodulation surgical cases between October 2019 and July 2024 were analyzed.
  • Patient demographics, clinical factors, surgical outcomes, and postoperative infection development were assessed.

Main Results:

  • The overall SSI rate was 3% (9 cases).
  • Significantly higher SSI rates were observed in patients with Type 1 DM (P=0.0102), HbA1c > 7% (P=0.0026), perioperative glucose > 200 mg/dL (P=0.0088), presence of DM (P=0.0111), and insulin use (P=0.0244).
  • Patients with DM had a 6.23-fold increased odds of infection, Type 1 DM patients had an 8.72-fold increase, and those with HbA1c > 7 had an 8.56-fold increase compared to controls.

Conclusions:

  • Type 1 diabetes, HbA1c levels above 7%, perioperative glucose exceeding 200 mg/dL, existing DM, and insulin use are associated with a significantly higher risk of SSIs after neuromodulation.
  • Identifying these risk factors is crucial for mitigating surgical complications and improving patient outcomes.
  • Future research should focus on establishing specific glycemic targets for patients undergoing neuromodulation to enhance safety and efficacy.