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[Wound infection and infection-promoting factors in breast cancer surgery -- a prospective multicenter study on
S Leinung1, M Schönfelder, K-J Winzer
1Chirurgische Klinik II der Universität Leipzig.
Introduction:
The quality of treatment of cancer of the female breast is reflected not only in such parameters as local recurrence rate and survival times, but also in the development of surgical complications. Within the framework of a study investigating the performance and quality assurance in surgical treatment of breast cancer, therefore, the wound infection rate (WIR) and factors influencing it were analysed in a large patient population.
Methods:
In the period between 1.1.2000 and 31.12.2000, 84 surgical departments participated in a prospective multicenter study to investigate primary surgery for breast cancer. A total of 1 416 patients were recruited to the study, the organization and conduction of which was in the hands of the former surgical department 1 of the University of Leipzig under the patronage of the East German Working Group for Performance and Quality Control in Surgery in cooperation with the An Institute for Quality Control in Operative Medicine of the Otto-von-Guericke University in Magdeburg. In addition to parameters characterizing patients, tumors and diagnostic work-up, we also analysed the surgical treatment and its possible complications with the aid of a questionnaire. The definition of wound infection was based on the criteria of the "Hospital Infection Control Practice Advisory Committee".
Results:
The overall WIR was 4.5 % (n = 65). 21 (32 %) of the wound infections (WI) were diagnosed exclusively on a clinical basis without establishing the responsible pathogens. In 44 (68 %) of the WI, a search for the pathogen was undertaken which in 3 cases (7 %) was negative, and in 41 cases (93 %) positive. 118 (8.3 %) of the patients received perioperative antibiotic cover. The following parameters were found to have a significant influence on WIR: local drainage, blood transfusion, the time lapse between biopsy and definitive surgery, and the size of the primary tumor.
Discussion:
Some of the above factors (transfusion, time lapse, drainage) can be influenced by the therapist. The wound infection rate is a marker for treatment quality.
