[Fundamental and clinical studies on imipenem/cilastatin sodium in the field of obstetrics and gynecology].

Fundamental and clinical studies on imipenem/cilastatin sodium (MK-0787/MK-0791) were carried out and the following results were obtained. Concentrations of MK-0787 in plasma and uterine tissues were determined at 30 minutes to 390 minutes after the completion of an intravenous drip infusion of 500 mg/500 mg of MK-0787/MK-0791 sodium. Levels of MK-0787 in oviduct, ovary, endometrium, myometrium, uterine cervix and portio vaginalis were 5.1, 5.3, 4.2, 6.6, 5.2 micrograms/g and 6.0 micrograms/g, respectively, at 30 minutes after the completion of the infusion. These levels far exceeded the MICs of MK-0787 against major pathogens (Gram-negative rods and anaerobic bacilli) most often isolated in the field of obstetrics and gynecology. MK-0787/MK-0791 was administered by intravenous drip infusion to 11 patients, including 4 with pelvic peritonitis, 4 with adnexitis and one each with peritonitis, tubo-ovarian abscess, and endometritis, at a dose of 1 g/1 g-1.5 g/1.5 g per day for a period of 4 to 9 days. Clinical response was excellent in 2 and good in 9. No adverse reactions or abnormal laboratory findings were observed in any of the patients.