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Antibiotic prophylaxis in cerebrospinal fluid shunting: a prospective randomized trial in 152 hydrocephalic patients
Abstract:
The authors report a prospective, randomized 18-month study on the effect of prophylactic antibiotic treatment in 152 hydrocephalic patients in whom clean shunt operations or revisions were done. The treated group received methicillin (totally 200 mg/kg) divided into six i.v. doses during 24 hours starting at the induction of anesthesia. Patients allergic to penicillin received erythromycin instead. Seventy-nine patients received antibiotics, and 73 (the control group) received none. All patients were followed at least 6 months after operation or to their death. Eleven patients developed signs of infection, giving an overall infection rate of 7.2%; however, the infection occurred less than 1 month after the operation in only half of these. Six of the patients had septicemia, 4 had peritonitis, and 1 had meningitis. In the treated group, the infection rate was 8.9%; in the control group, the rate was 5.5%. There was no statistically significant difference. The prophylactic antibiotic regimen in this investigation did not reduce the infection rate connected with cerebrospinal fluid shunting procedures.
Insights
Prophylactic antibiotics did not significantly reduce infection rates in hydrocephalic patients undergoing cerebrospinal fluid shunt procedures. The study found similar infection rates in both treated and control groups.
Area of Science:
- Neurosurgery
- Infectious Diseases
- Clinical Pharmacology
Background:
- Hydrocephalus management frequently involves cerebrospinal fluid (CSF) shunting.
- CSF shunt infections are a significant complication, leading to increased morbidity and healthcare costs.
- Prophylactic antibiotic use is a common strategy to prevent shunt infections, but its efficacy requires rigorous evaluation.
Purpose of the Study:
- To prospectively evaluate the efficacy of prophylactic antibiotic treatment in reducing infection rates following CSF shunt operations.
- To compare infection rates between hydrocephalic patients receiving perioperative antibiotics and those who did not.
Main Methods:
- A prospective, randomized study involving 152 hydrocephalic patients undergoing clean shunt operations or revisions.
- The treatment group received intravenous methicillin (or erythromycin for penicillin-allergic patients) within 24 hours of anesthesia induction.
- A control group received no prophylactic antibiotics. All patients were followed for at least 6 months post-operation.
Main Results:
- An overall infection rate of 7.2% (11/152 patients) was observed.
- The infection rate in the antibiotic-treated group was 8.9% (7/79), compared to 5.5% (4/73) in the control group.
- No statistically significant difference in infection rates was found between the prophylactic antibiotic group and the control group.
Conclusions:
- The investigated prophylactic antibiotic regimen did not demonstrate a statistically significant reduction in infection rates associated with CSF shunting procedures.
- Further research may be needed to determine optimal strategies for preventing CSF shunt infections.
- Current prophylactic antibiotic protocols may not be effective in this patient population.