Powder Topical Rifampin for Reducing Infections After Neural Tube Defect Surgery in Infants

The correct timing and technique of neural tube defect (NTD) repairs significantly decrease the morbidity and mortality of NTD cases. However, infections related to the surgery are still common. We investigated the effects of topical rifampin combined with routine prophylaxis in newborns with open NTDs.

This retrospective study included 86 patients who had undergone NTD surgery. The experimental group comprised 30 patients who were started on topical rifampin before surgery, and the control group comprised 56 patients who were not administered topical rifampin. Surgical site infections (SSIs) and meningitis/ventriculoperitoneal (VP) shunt infections that developed within 6 months after the surgical intervention were evaluated.

In the postoperative period, meningitis/VP shunt infections and SSIs were observed in 6.7% and 3.3%, respectively, of the experimental group treated with topical rifampin. Meningitis/VP shunt infections and SSIs were observed in 37.5% and 21.4%, respectively, of the control group. External ventricular drainage and not using topical rifampin were identified as important relative risk (RR) factors for meningitis/VP shunt infections (RR 19.28, 95% confidence interval [CI] [3.53, 105.33], P = 0.001; RR 18.10, 95% CI [2.38, 137.68], P = 0.005). A flap transposition, cerebrospinal fluid leaks, and not using topical rifampin were identified as RR factors for SSIs (RR 22.21, 95% CI [4.81, 102.47], P < 0.001; RR 13.04, 95% CI [1.22, 139.33], P = 0.034; RR 7.09, 95% CI [1.12, 53.99], P = 0.042). We did not observe any local or systemic side effects resulting from the use of rifampin.

The use of topical rifampin is an easy and effective method for reducing SSIs and meningitis/VP shunt infections related to NTD surgery.