Abstract
Background: Infection is one of the most common complications of deep brain stimulation (DBS). Long-term infection rates beyond the immediate postoperative period are rarely evaluated. Objective: To study short- and long-term DBS-related infection rates; to evaluate any potential seasonality associated with DBS-related infections. Methods: We retrospectively reviewed all DBS surgeries performed in a 5-yr period at 1 hospital by a single surgeon. Infection rates and clinical characteristics were analyzed. Postoperative "infections" were defined as occurring within 6 mo of implantation of DBS hardware, while "erosions" were defined as transcutaneous exposure of hardware at ≥6mo after implantation. Based on the date of surgery preceding an infection, rates of infection were calculated on a monthly and seasonal basis and compared using Chi square and logistic regression analyses. Results: A total of 443 patients underwent 592 operations; 311 patients underwent primary DBS placement with 632 electrodes. Primary DBS placement infection incidence was 2.6%. DBS procedure infection and infection rate by electrode were 2.9% and 3.2%, respectively. Infectious complications presented later than 6 mo postoperatively in 38% of infected patients Summer (July-September) infection rate was significantly higher than other seasons (P = .002). The odds ratio of an infection related to a surgery performed in August was found to be 4.15 compared to other months (P = .021). Conclusion: There is a persistent risk of DBS infection and erosion beyond the first year of DBS implantation. Start of the academic year was associated with increased infection rate at our institution.
Original language | English (US) |
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Pages (from-to) | 540-547 |
Number of pages | 8 |
Journal | Clinical neurosurgery |
Volume | 83 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1 2018 |
Keywords
- Deep brain stimulation (DBS)
- Erosion
- Infections
- July effect
ASJC Scopus subject areas
- Surgery
- Clinical Neurology