Cervical resistance in patients with previous spontaneous mid-trimester abortion |
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| Authors: | G. S. ANTHONY Lalor Fellow A. A. CALDER Senior Lecturer M. C. MACNAUGHTON Muirhead Professor |
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| Affiliation: | University Department of Obstetrics and Gynaecology, Royal Maternity Hospital, Rottenrow, Glasgow G4 ON A, Scotland, UK |
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| Abstract: | Summary. The Cervical Resistance Index (CRI) was measured in 20 patients with a history of previous spontaneous midtrimester abortion. The mean CRI was 2.44±0.78 in patients with a history suggestive of cervical incompetence and 4.91±0.41 in 102 patients who were parous women with normal menstrual cycles. This new procedure which is used in the non-pregnant state provides an additional method for diagnosis of cervical incompetence. |
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