Effectiveness of a multimodal strategy to reduce external ventricular drain-associated infection: A quasi-experimental study

Am J Infect Control. 2024 Nov;52(11):1307-1313. doi: 10.1016/j.ajic.2024.06.026. Epub 2024 Jul 3.

Abstract

Background: Infection is a serious complication in neurosurgical patients who undergo external ventricular drain (EVD) insertion.

Methods: We conducted a quasi-experimental study in patients who underwent EVD insertion to evaluate the impact of a multi-modal strategy to reduce the incidence of external ventricular drain associated infections (EVDAIs). The study was divided into 2 periods; (1) the pre-intervention period when techniques for EVD insertion and maintenance were up to the discretion of the neurosurgeons and (2) the post-intervention after implementation of a multi-modal strategy (cefazolin antibiotic prophylaxis, preoperative chlorhexidine showers, application of postoperative chlorhexidine-impregnated dressing, limited manipulation of the EVD, and meticulous EVD management). The primary outcome was the incidence rate of EVDAIs; secondary outcomes included in-hospital mortality rate, the hospital length of stay.

Results: In total, 135 patients were included. The incidence rate of EVDAIs was significantly reduced in the post-intervention period (5.6 cases/1,000 EVD-days) compared with the pre-intervention period (18.2 cases/1,000 EVD-days; P=0.026). There were no differences in all secondary outcomes analyzed. This multi-modal strategy was associated with high satisfaction among health care personnel.

Conclusions: Implementation of a multi-modal strategy was associated with a reduction in the incidence of EVDAIs. This was in line with our goal of promoting a new culture of safety despite being in a resource-limited setting.

Keywords: Bundle; Healthcare-associated infections; Infection prevention; Neurosurgery; Resource-limited settings.

MeSH terms

  • Adult
  • Aged
  • Antibiotic Prophylaxis / methods
  • Catheter-Related Infections / epidemiology
  • Catheter-Related Infections / prevention & control
  • Chlorhexidine / administration & dosage
  • Chlorhexidine / therapeutic use
  • Drainage* / methods
  • Female
  • Humans
  • Incidence
  • Infection Control / methods
  • Male
  • Middle Aged

Substances

  • Chlorhexidine