[Clinical bacteriological studies on cefotiam and cefsulodin in the field of otorhinolaryngology].

Clinical bacteriological studies on cefotiam and cefsulodin in the field of otorhinolaryngology were carried out and the following results were obtained. 1) Aerobic and anaerobic Gram-positive bacteria were dominantly isolated from the clinical materials sent to the center from the clinical institutes. 2) It was considered that Streptococcus pneumoniae, Haemophilus influenzae and beta-Streptococcus played an important role in the primary infections in the field of otorhinolaryngology. Staphylococcus aureus was also frequently isolated from the primary infections. Peptostreptococcus spp. was dominantly isolated from peritonsillar abscess. Gram-negative bacilli (GNB) were mainly isolated from the chronic secondary infections. Among GNB, Pseudomonas aeruginosa and Proteus spp. were more frequently isolated. Staphylococcus aureus was also constantly detected in the secondary infections together with GNB. Anaerobic bacteria were isolated from 20.1% of the patients with chronic otitis media and 27.1% of sinusitis. 3) Cefotiam showed potent antibacterial activities against most isolates of Gram-positive and Gram-negative bacteria. 4) Cefsulodin showed potent antibacterial activities against clinically isolated Pseudomonas aeruginosa. Staphylococcus aureus and beta-Streptococcus were also susceptible to cefsulodin.