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Are Sterile Water and Brushes Necessary for Hand Washing before Surgery in Japan?
Surgery for Organ Function and Biological Regulation (Surgery 1), Nippon Medical School Graduate School of Medicine
2Department of Microbiology and Immunology, Nippon Medical School
Purpose: To examine whether sterile water and brushes are necessary for hand washing before surgery.
Method: Twenty-two operating room nurses were randomly divided into two groups as follows: 11 nurses who used 7.5% povidone iodine (PVI group) and another 11 nurses who used 4% chlorhexidine gluconate (CHG group) to wash their hands using the rubbing method. All the nurses were examined for bacterial contamination of their hands before and after surgical hand rubbing. We used tap water to wash the hands at the sink used for washing surgical instruments in the operating room and non sterilized plastic brushes.
Results: No bacteria were detected in the tap water. Before washing the hands, the number of bacteria detected was 5.0×103 cfu/H in the PVI group and 4.0×103 cfu/H in the CHG group, which were similar in both groups. After washing the hands, the median value of the bacteria decreased to 8.7×102 cfu/H in the PVI group and 0 cfu/H in the CHG group.
Conclusions: Sterile water and brushes are not necessary for preoperative scrubbing up. When using tap water for surgical hand washing, 1) the hand-rubbing method should be used; 2) a quick-alcohol-based disinfectant scrub should be used; 3) the concentration of free chloride in the water should be maintained at over 0.1 PPM; 4) the bacterial contamination of the water should be checked; and 5) the faucet should be routinely cleaned and sterilized.
J Nippon Med Sch 2005; 72: 149-154
Keywords
surgical hand washing, sterilized water, sterilized brush, tap water
Correspondence to
Kiyonori Furukawa, Department of Surgery I, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
seiken-f@nms.ac.jp
Received, October 22, 2004
Accepted, December 16, 2004
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