Antibiotic prophylaxis in ventricular shunt surgery. I. Reduction of operative infection rates with methicillin

Area of Science:

• Neurosurgery
• Infectious Disease
• Clinical Pharmacology

Background:

• Cerebrospinal fluid (CSF) shunt surgery is associated with significant infection risks, averaging 20% for cases and 8% for operative infections in hydrocephalic patients.
• Prophylactic antibiotic administration is not a universally adopted practice despite high infection rates.

Purpose of the Study:

• To evaluate the efficacy of short-term prophylactic methicillin in reducing infection rates associated with CSF shunt surgery.
• To compare infection rates before and after the implementation of prophylactic antibiotic use.

Main Methods:

• A sequential series study conducted from 1969 to 1978.
• Administration of short-term prophylactic methicillin to patients undergoing CSF shunt surgery.

Main Results:

• Case infection rates decreased from 10.9% to 8.9%.
• Operative infection rates were reduced from 8% to 2.6%.
• Results compared favorably to other reported series, supporting the use of prophylactic antibiotics.

Conclusions:

• Short-term prophylactic methicillin administration is effective in reducing infection rates in CSF shunt surgery.
• The findings support the routine use of prophylactic antibiotics in shunt procedures.
• Further reductions in shunt sepsis may be achievable by selecting alternative semisynthetic penicillins that achieve higher CSF concentrations.