Treatment of acute pelvic inflammatory disease in the ambulatory setting: trial of cefoxitin and doxycycline versus ampicillin-sulbactam

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Abstract
Ampicillin-sulbactam (750 mg) given orally twice daily for 10 days was evaluated for the treatment of acute pelvic inflammatory disease (PID) in an ambulatory setting in Nairobi, Kenya. The first 26 women received ampicillin-sulbactam in an open-label fashion, and the remaining 75 women were randomly selected to receive either ampicillin-sulbactam (n = 38) or cefoxitin (2 g) intramuscularly and probenecid (1 g) orally, followed by doxycycline (100 mg) orally twice daily for 10 days (n = 37). Women were enrolled in a sexually transmitted disease clinic and were followed for clinical and microbiologic responses at 1 to 2 weeks and 4 to 6 weeks posttreatment. Women had a later follow-up visit to note interim pregnancy or underwent hysterosalpingography for fertility outcome assessment. The short-term clinical response rates were 70% for ampicillin-sulbactam and 72% for cefoxitin-doxycycline (P = 0.47). Among Chlamydia trachomatis-infected women treated with ampicillin-sulbactam, three had microbiologic relapse. The post-PID tubal obstruction rates were similar in the two groups: 18% for ampicillin-sulbactam and 33% for cefoxitin-doxycycline (P = 0.31). Neither regimen was highly effective as a therapy for acute PID. These data strongly argue that primary prevention must be the goal for a reduction of PID morbidity and show that improved therapy for the treatment of PID in the ambulatory setting is needed.