Researchers at the University of Calgary, Alberta, Canada, have investigated the implementation of a standardized shunt infection prevention bundle, a set of evidence-based practices termed the Calgary Adult Shunt Infection Prevention Protocol (CASIPP) to prevent ventriculoperitoneal (VP) shunt infections within an adult hydrocephalus patient population. The initial implementation of the CASIPP resulted in infection reduction, and then the rate of infections was dramatically reduced after the preoperative skin antiseptic was replaced with 2% chlorhexidine gluconate in 70% isopropyl alcohol.
Detailed findings of this study are described in the article “A standardized infection prevention bundle for reduction of CSF shunt infections in adult ventriculoperitoneal shunt surgery performed without antibiotic-impregnated catheters,” by Sandeep Muram et al., published today in the Journal of Neurosurgery.
VP shunt insertions are among the most common procedures performed by neurosurgeons, and unfortunately, shunt infections in adults often cause severe illness and usually require additional surgical procedures, prolonged intravenous antibiotic treatment, and extended hospital stays, with average direct hospital costs per infection of $50,000 to $100,000 USD.
The investigators at the University of Calgary undertook a single-surgeon quality improvement study in July 2013, at which time there was no standardized infection control protocol at their institution and the rate of shunt infection was 5.8%. When the CASIPP was implemented on July 1, 2013, the rate of shunt infection decreased to 4.0% in 621 consecutive shunt surgeries. Then, on July 1, 2015, the routine use of povidone-iodine as a preoperative skin antiseptic was replaced with 2% chlorhexidine gluconate in 70% isopropyl alcohol, which resulted in an infection rate of 0% in 379 consecutive procedures. The authors note that larger multicenter studies should be completed to verify the effectiveness of the protocol demonstrated in this preliminary study.
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