Wolf R, Landau M, Berger S A, Brenner S
Department of Dermatology, Tel-Aviv Sourasky Medical Center, Ichilov Hospital, Israel.
Cutis. 1993 Apr;51(4):276-8.
The aim of this study was to determine whether living bacteria can be transmitted by cryosurgery with carbon dioxide. Cultures were taken from the outer layer of the ice before starting treatment, and again at the end of the working day during ten consecutive working days. Each of ten dry ice blocks was sterile prior to use. Staphylococcus epidermidis was isolated from six of the latter following use. This finding indicates that the dry ice was contaminated during the procedure and that bacteria were transmitted from the patient's skin to the dry ice and to culture media. The medical implications of this finding require serious consideration regarding the risk of infection to both patient and clinical personnel from this procedure.
本研究的目的是确定使用二氧化碳进行冷冻手术时是否会传播活细菌。在开始治疗前从冰块外层取样培养，在连续十个工作日的每个工作日结束时再次取样培养。十个干冰块在使用前均无菌。使用后从其中六个干冰块中分离出表皮葡萄球菌。这一发现表明，干冰在手术过程中受到污染，细菌从患者皮肤传播到干冰和培养基中。这一发现对医学的影响需要认真考虑该手术对患者和临床工作人员的感染风险。
