Clinical and Microbiological Characterization of Patients with Nonspecific Vaginosis Associated with Motile, Curved Anaerobic Rods

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Abstract
The vaginal secretions of 20 normal control subjects and 21 patients with motile, curved anaerobic rods were cultured for aerobic and anaerobic bacteria, Chlamydia trachomatis, herpes simplex virus, and Trichomonas vaginalis. Extensive histories and physical examinations of the patients and microscopic appearance and gas-liquid chromatography patterns of vaginal secretions were compared between the two groups. The patients who had motile rods in their vaginal secretions more frequently presented with a history of complaints about foul-smelling discharge (18 [86%] of 21); discharge noted during physical examination at their introitus (15 [71%] of 21); a vaginal pH >4.5 (21 [100%] of 21); and a highly specific microscopic appearance of their secretions. The secretions were characterized by the absence of lactobacilli, the presence of highly motile, curved bacilli, and an increased number of background bacteria when compared with normal patients. Patients had more frequent anaerobic isolates than did controls (P < .001), with increased numbers of Peptococcus, Peptostreptococcus, Propionibacterium, and Bacteroides species. All patients with motile bacteria in their secretions met the criteria of the syndrome of nonspecific vaginosis that has been previously described.

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