• J Hajjar and R Girard.
• Equipe interdépartementale de lutte contre l'infection nosocomiale, Centre hospitalier général, Valence, France.
• Ann Fr Anesth Reanim. 2000 Jan 1;19(1):47-53.

ObjectivesTo determine incidence rate, main characteristics and risk factors of nosocomial infections associated with anesthesia (NIAA).Study DesignProspective, descriptive multicentre survey.PatientsAll patients aged more than 15 years and undergoing surgery (except cardio-thoracic, ENT or ambulatory surgery) under general or regional anaesthesia.MethodsVoluntary participation of surgical units from public or private hospitals. Use of pre-established definitions of infections and a 72 hours postanesthetic follow-up. Anaesthesia and operation related risk factors collected. End point based on occurrence, or not, of clinical infection. Record, control, treatment and analysis of the data by Epi Info--5.0 software. Statistics used: Fischer's exact test, Mantel-Haenszel test, Anova method, Kruskall-Wallis test.ResultsAmong 7,300 patients belonging to 13 hospitals, 25 developed an infection (nine vascular catheter related infections, 12 respiratory tract infections, two infections of the eye and two of the mouth). Only two infections have been bacteriologically documented. The overall incidence of NIAA was 3.4 per 1,000 patients. It was significantly higher after an anaesthetic of more than 2 hours and after transfusion.ConclusionsThis first prospective survey of NIAA confirmed that nosocomial infections are a real problem in the practice of anaesthesia and the necessity to use preventive measures. A survey with a larger sample size would allow to specify the respective part of the various risk factors and to develop a risk index.

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