Evaluation of clinical criteria versus direct microscopic examination and culture in diagnosis of bacterial vaginosis

ABSTRACT

Thirty two cases completed the study of bacterial vaginosis of which 10 [31.3%] were diagnosed as B.V. depending on the clinical criteria of Amsel et al., [1983 Gram stained smears and culture. The properatin of B.V. among IUD users was statistically significantly higher than that of B.V. among non-IUD users [p< 0.005]. The pH of vaginal secretion [> 4.5] in this study showed 100% sensitivity, 45.5% specificity. However, the presence of clue cells in wet mout examination of vaginal fluid showed 70% sensitivity and 81.8% specificity. The sensitivity and specificity for the detection of fishy odour on addition of 10% KOG and vaginal discharge were 60%, 86.4% and 70% respectively. Compared with clinical criteria for diagnosis of B.V. Gram stained smears were 100% sensitive and 72.2% specific. The isolation of G. Vaginails and Gram stained smears of vaginal fluid were equally sensitive and specific