| [characteristics and clinical value of extended-spectrum beta-lactamases]. | the literature data and the findings of the authors' studies on the role of extended-spectrum bata-lactamases (esbl) in providing the clinical effect in the treatment of infections due to esbl-producing organisms were analyzed. the analysis allowed to consider the nccls recommendations not sufficiently valid. according to these recommendations the esbl-producing organisms (among e. coli and klebsiella spp.) should be regarded as resistant to penicillins, cephalosporins and aztreonam. susceptibil ... | 2003 | 14628571 |