J.Jpn. Surg. Soc.. 60(6): 993-1008, 1959
STUDIES ON MICROCOCCI IN SURGICAL INFECTIOS
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Department of Surgery, Keio University School of Medicine (Director: Professor Nobukatsu SHIMADA) Hideyuki KOJIMA |
The results obtained are as follows:
1) According to the Bergey's determination, the micrococi were pathogenic, which reduced nitrate and did not utilize ammonium phosphate as nitrogen, having both or one of gelatine-liquefication and mannit fermentation. The other micrococci isolated from any focus were non-innammable. The coagulase-test is the key to recognize these pathogen eminent or latent.
2) The micrococci in the skin of patients mostly caused contamination of operative wounds. The cross-infections were not found in the skin, but micrococci were frequently existent as bacterial-flora. Therefore, continuous sterilization of skin is strictly required before operations.
3) About 75% of the micrococci isolated from post-oprative infection were penicillin-resistant and most of these were phage-type III.
In these series, Micrococcus aurantiacus was isolated from postoperative infections more than non-hospital infections. These facts were due to the cross-infections of "hospital staphylococci".
Penicillin-resistance of non-hospital micrococ are increasing. Seeing that, differences of penicillin-resistance between hospital and non-hospital will be less and less.
4) Percentage of PC-resistant micrococci in hospital infections were high from early and not progressive. Its maximum became comparatively at the level of 75%. So, it is assumed that PC-resistant non-hospital micrococi will be approximately 75% along with non-hospital PC-treatment.
5) To prevent the cross-infection by hospital staphylococci, it is reasonable to study more on circumstances of hospital, rather than to investigate each cases. Then antibiotics must be used intentionally, appreciating antibiotic sensibility of micrococci in the hospital or post-operative infections.
(author's abstract)
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