Surgical neuromodulation infection prevention starts with understanding the colonization patterns of pathogens like Staphylococcus aureus. Researchers recently investigated how preoperative screening impacts outcomes in high-risk procedures. They analyzed data from 1,977 cases involving spinal cord stimulation (SCS), deep brain stimulation (DBS), and intrathecal baclofen (ITB) pumps. These devices are life-changing for patients but remain vulnerable to deep surgical site infections (SSIs).

The study found that approximately 20% to 25% of all neuromodulation patients test positive for S. aureus colonization. Interestingly, methicillin-susceptible S. aureus (MSSA) was far more prevalent than methicillin-resistant S. aureus (MRSA). Specifically, MSSA was 14 times more common in the SCS group and 9 times more common in DBS patients. However, the ITB pump cohort faced a unique challenge. MRSA colonization was three times more frequent in ITB patients compared to those undergoing SCS or DBS procedures.

Surgical neuromodulation infection prevention: Key Strategies

Implementing targeted decolonization protocols proved highly effective in reducing postoperative complications. In the ITB pump group, infection rates plummeted from 8% down to near-zero levels following the introduction of screening. Furthermore, the SCS group recorded no deep surgical site infections during the study period. These results suggest that identifying carriers before surgery allows for tailored antibiotic prophylaxis and skin preparation. Consequently, universal screening could become a standard of care for neuromodulation centers to minimize device removal.

Moreover, the study emphasized that patient-related comorbidities often influence colonization risk. Clinicians should pay close attention to the specific bacterial landscape of each patient. In addition, decolonization usually involves a five-day course of nasal mupirocin and chlorhexidine body washes. These simple steps provide a robust defense against endogenous infection sources. Ultimately, preoperative vigilance ensures better long-term device retention and patient satisfaction.

How does MRSA prevalence differ between SCS and ITB procedures?

MRSA colonization is three times more common in patients receiving intrathecal baclofen (ITB) pumps than in those receiving spinal cord stimulators (SCS). This highlights the need for specialized screening in ITB populations.

Is MSSA a significant threat in surgical neuromodulation?

Yes, MSSA is the most frequent colonizer across all neuromodulation types. It was up to 14 times more common than MRSA, making it a primary target for preoperative decolonization protocols.

Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

Treffy RW et al. Surgical neuromodulation: prevalence of Staphylococcus aureus, decolonization, and rates of infection. J Neurosurg. 2026 Mar 13. doi: 10.3171/2025.11.JNS241759. PMID: 41825062.

Nolan B et al. Staphylococcus aureus swabbing and decolonization prior to neuromodulation procedures: A systematic review and meta-analysis. Neuromodulation. 2023 Jul;26(5):928-937. doi: 10.1016/j.neurom.2022.07.013.

Lefebvre J et al. Staphylococcus aureus screening and decolonization reduces the risk of surgical site infections in patients undergoing deep brain stimulation surgery. J Hosp Infect. 2017 Feb;95(2):144-147. doi: 10.1016/j.jhin.2016.11.019.