Unsatisfactory colposcopy and the response to orally administered oestrogen: a randomized double blind placebo controlled trial

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Abstract
Thirty-six women with dystaryotic cervical smears and unsatisfactory colposcopy were randomly allocated to receive either 30 .mu.g ethinyl oestradiol or placebo daily by mouth for 10 days. Thirty-four women were available for review (17 women in each of the two groups), full colposcopic insepection of the transformation zone was possible in a significantly greater proportion of the oestrogen treated group (70% versus 23%, P < 0.01). As most diagnostic conizations are currently performed on the basis of unsatisfactory colposcopy, the use of oestrogen medication followed by colposcopic reassessment should permit a reduction in the number of patients subject to operation.

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