cefuzonam and Uterine-Diseases

A multi-center open study was conducted to investigate cefuzonam (CZON, L-105) regarding to its pharmacokinetic, bacteriological and clinical aspects in the field of obstetrics and gynecology with the participation of 31 medical institutions and the related facilities. The results are summarized as follows. 1. Peak MICs of CZON for Staphylococcus aureus, coagulase (-) staphylococci, Escherichia coli, Klebsiella pneumoniae, Bacteroides fragilis group, Peptostreptococcus spp. isolated from obstetrical and gynecological infections with relatively high frequencies were 0.39, 0.20, 0.024, 0.024-0.05, 12.5, 0.20 microgram/ml, respectively, with an inoculum size of 10(6) CFU/ml. 2. When 1 g of CZON was given through bolus injection, the maximum concentration (Cmax) of CZON in pelvic dead space exudate was 18.7 micrograms/ml at 60.9 minutes (Tmax) after the injection; Cmax's in all female genital tissues were observed at 0.6-27.9 minutes and ranged from 11.9-26.3 micrograms/g. The Cmax 8.3 micrograms/ml, in the pelvic dead space exudate was noted at 97.0 minutes after the end of the intravenous drip infusion of 1 g over 1 hour, and Cmax's in genital tissues were 14.3-30.0 micrograms/g at the end of infusion. With 1 hour drip infusion of 2 g, Cmax's in genital tissues were 35.0-53.9 micrograms/g at the end of infusion. 3. The clinical efficacy of CZON was evaluated in 206 evaluable patients with obstetric and gynecologic infections. Efficacy rates classified by types of infections were 97.1% (67/69) for intrauterine infections, 81.6% (31/38) for intrapelvic infections, 91.8% (45/49) for adnexitis, 95.2% (20/21) for infections of the external genital organs and 86.2% (25/29) for other infections. 4. Side effects were observed in 7 of the 262 patients: eruption in 6 cases, itching in 2, diarrhea in 1. Abnormal laboratory test values were noted in 9 of the 256 patients. Most of them were slight elevation of hepatic function values. CZON showed satisfactory clinical efficacy and potent antibacterial activity, hence it appears that CZON will be a very useful antibiotic for obstetric and gynecologic infections.

Topics: Bacterial Infections; Ceftizoxime; Drug Evaluation; Drug Resistance, Microbial; Escherichia coli; Female; Humans; Klebsiella pneumoniae; Multicenter Studies as Topic; Pelvic Inflammatory Disease; Staphylococcus; Uterine Diseases; Uterus

Cefuzonam (CZON, L-105), an antibiotic injectable of cephalosporin family, was studied pharmacokinetically, clinically and bacteriologically to examine its distribution to female genital tissues and the activity on infections in the field of obstetrics and gynecology. Maximum concentrations in serum and genital tissues achieved 19-46 minutes after intravenous injection of CZON 1 g were 69.6 micrograms/ml for serum, 63.1 micrograms/g for oviduct, 34.2 micrograms/g for ovary, 22.5 micrograms/g for endometrium, 33.4 micrograms/g for myometrium, 30.7 micrograms/g for cervix uteri, and 37.1 micrograms/g for portio vaginalis. Clinical efficacies on 15 cases of intrauterine infection and adnexitis were proved with 4 cases of 'marked improvement' and 11 cases of 'improvement', thus the efficacy rate was 100%. Of 21 strains of aerobes and anaerobes isolated from infectious lesions, 19 strains were eliminated after administration of the drug. No side effects were observed. From these results of fundamental and clinical studies CZON appeared to be a highly useful drug fro the obstetric and gynecological infections.

Topics: Adnexa Uteri; Adult; Bacterial Infections; Ceftizoxime; Drug Evaluation; Drug Resistance, Microbial; Escherichia coli; Female; Humans; Infusions, Intravenous; Middle Aged; Pseudomonas; Staphylococcus aureus; Uterine Diseases; Uterus

Cefuzonam (CZON, L-105) was used clinically for the treatment of obstetrical and gynecological infections at a dosage of 1 g once or twice daily by intravenous drip infusion. The results obtained are summarized as follows. 1. Clinical effects of CZON were analyzed in 10 patients, including 5 patients with intrapelvic infections, 3 with intrauterine infections, and 1 each with adnexitis and an external genital infection. Excellent responses were observed in 1 patient (11.1%), good responses in 7 (77.8%), poor responses in 1 (11.1%), and one remaining case was unevaluable. The efficacy ratio was 88.9%. 2. Upon the treatment, eradications of causative bacteria were observed in all 4 cases tested. Staphylococcus sp. (2 strains), Staphylococcus epidermidis (1 strain), Klebsiella oxytoca (1 strain) and Pseudomonas putida (1 strain) were all eradicated by the CZON treatment. 3. The safety of the drug was analyzed in the 10 patients and rash occurred in 1 patient as a side effect. 4. One patient showed eosinophilia after the CZON treatment. It appeared that CZON would be useful for the treatment of obstetrical and gynecological infections.

Topics: Adult; Aged; Bacterial Infections; Ceftizoxime; Drug Evaluation; Female; Humans; Infusions, Intravenous; Middle Aged; Pelvic Inflammatory Disease; Uterine Diseases

Cefuzonam (L-105, CZON), a new beta-lactam antibiotic, was studied for its transfer into intrapelvic tissues and for clinical efficacy in the treatment of obstetrical and gynecological infection. 1. Following an intravenous 1 hour drip infusion of 1 g, the transferred CZON into uterine tissues reached and was maintained at effective concentrations which were defined as levels exceeding MICs against clinical isolates frequently obtained from patients in the field of obstetrics and gynecology. The peak concentration of CZON in the pelvic dead space exudate was estimated to be 20 micrograms/ml at 0.5-1 hour after infusion. 2. Subjects studied were 5 patients with the following infections: pyometra (3 cases), puerperal intrauterine infection (1 case), vaginal cuff infection (1 case). Clinical efficacies were good in 4 cases and poor in 1 case. No notable side effects or abnormal laboratory test results were noted.

Topics: Adnexa Uteri; Adult; Aged; Bacterial Infections; Ceftizoxime; Drug Evaluation; Female; Humans; Infusions, Intravenous; Middle Aged; Uterine Diseases; Uterus