Chamberlain G V, Houang E
Ann R Coll Surg Engl. 1984 Nov;66(6):432-3.
A randomly controlled trial was performed on 41 women having gynaecological surgery in which the team of surgeons and nurses wore or did not wear masks. After major abdominal surgery, 3 of 5 patients in the unmasked group developed wound infections whereas no infection was observed in the 4 patients of the masked group. A greater number of Streptococci were also found by settle-plates on the operating table in the unmasked group. No infection was recorded after minor or vaginal surgery.
对41名接受妇科手术的女性进行了一项随机对照试验,手术中外科医生和护士佩戴或不佩戴口罩。在腹部大手术后,未戴口罩组的5名患者中有3名发生伤口感染,而戴口罩组的4名患者未观察到感染。在未戴口罩组的手术台上,沉降平板也发现了更多的链球菌。小手术或阴道手术后未记录到感染。