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Within the scope of its health products control mission, the French Health Products Safety Agency (Afssaps) collaborating with two expert's sites, has assessed the 16 tests available on the French market in 2002 for rapid diagnosis of the Streptococcus A tonsillitis. The purpose of this study was to verify the reliability and rapidity of these tests and to give some information to the users about their analytical criteria and practicability characteristics. The analytical study has been performed on a same panel of four reference strains of Streptococcus pyogenes dilutions to determine the limit of detection of all the reagents in the same condition of methodology. The limit of detection has been calculated with the results expressed in colony forming unit by ml (CFU/ml). The practicability study has permitted to analyze the quality of the presentation, the easiness of the final reading and of performing tests. A score has been established for each rapid test. A classification of the analytical sensitivity (limit of detection) and practicability (score) of these 16 devices has been established. The limit of detection of the reagents giving the best results allows the detection of the lowest bacterial concentration of the panel which is 10(5) CFU/ml. Regarding practicability, the results suggest that, the immunochromatographic strip methods have the best score in a view with the use by a non medical laboratory.

Purpose: To evaluate the prevalence, severity and outcome of cholangitis within two months after percutaneous transhepatic biliary drainage., Materials and Methods: One hundred and nineteen patients with obstructive jaundice but no septic symptoms underwent biliary drainage for biliary decompression. Biliary obstruction was malignant in 87 patients and benign in 32 patients. Clinical and biological criteria were developed to confirm and grade the cholangitis. Based on these, the prevalence, severity and outcome of cholangitis was determined and analysed through review of clinical records., Results: All patients had successful biliary drainage and internal drainage. Nine patients (7.5%) developed cholangitis after biliary drainage, three (2.5%) being of the severe type. Of these, 8 had malignant obstruction. All three patients with severe cholangitis had malignant obstruction. All patients with cholangitis except one (0.8%) responded to antibiotic and supportive therapy., Conclusion: Severe cholangitis occurring within two months following PBD for obstructive jaundice was uncommon. It tended to occur in patients with malignant obstruction. Although most responded favorably to medical treatment, post procedural sepsis must be handled with great care since it is life-threatning.