Comparative evaluation of clindamycin versus clindamycin plus tobramycin in the treatment of acute pelvic inflammatory disease.

Fifty-one hospitalized women were treated with either clindamycin phosphate alone (N = 23) or a combination of clindamycin phosphate plus tobramycin (N = 28) for community-acquired pelvic inflammatory disease. The overall regimen clinical success rates were 100 and 91% for the clindamycin/tobramycin and clindamycin-alone groups, respectively. Efficacy for patients with positive pre-treatment Neisseria gonorrhoeae cultures was eight of eight (100%) for the clindamycin/tobramycin group and seven of eight (88%) in the clindamycin-alone group. Of the total population studied, 15 of 51 (29%) had positive pre-treatment cultures for Chlamydia trachomatis, and a microbiologic cure was attained in 15 of 15 (100%). However, in two of 15 (14.5%), the patient did not return for the 6-week culture, although the culture at discharge from the hospital was negative. No serious adverse reactions were observed, although oral follow-up treatment with clindamycin had to be discontinued in one patient because of diarrhea, which resolved without additional therapy. The results suggest that intravenous clindamycin alone is a viable alternative to the use of clindamycin/tobramycin for women with acute pelvic inflammatory disease requiring hospitalization.