Endometrial Thickness as a Predictor of Endometrial Malignancy among the Women Presenting with Abnormal Uterine Bleeding.

Abstract

Abnormal uterine bleeding (AUB) is the most common and frequent presenting complaint in Gynaecology in all age group especially in perimenopausal and postmenopausal women. The spectrum of AUB in women of our country includes a wide varieties of organic pathology. The objective of this study was to assess the role of endometrial thickness as a predictor of endometrial malignancy among the women presenting with AUB. This cross-sectional descriptive type of observational study was conducted among 122 women of perimenopausal (40-50 years) and 87 women of postmenopausal (>50 years) age group presenting with AUB in the Obstetrics and Gynaecology department of Mymensingh Medical College Hospital, Bangladesh from February 2020 to August 2021. These patients were subjected to a detailed history and meticulous general, systemic and local examination. The relevant investigations like Transvaginal Sonography (TVS) followed by endometrial biopsy by dilatation and curettage were done in all study participants. Most of the women were in the age group 41-45 years in perimenopause and 51-55 years in postmenopause. Mean±SD was 45.8±4.1 years in perimenopause and 56.3±6.4 years in postmenopause. There was statistical significance in developing endometrial malignancy regarding risk factors of nulliparity, Hypertention (HTN), Diabetes mellitus (DM) and hormone intake between perimenopause and postmenopause. Endometrial thickness was measured in perimenopause and postmenopause. Mean±SD of Endometrial thickness (ET) in perimenopause and postmenopause was 11.3±4.4mm and 7.2±6.3mm with statistical significance (p<0.001). Sensitivity, specificity, Positive predictive value (PPV), Negative predictive value (NPV) and accuracy of TVS were 85.5%, 67.4%, 81.2%, 73.8% and 78.7% in perimenopause and 85.9%, 20%, 89%, 75% & 83.9% in postmenopause. Cut off limit of ET in detection of endometrial malignancy was 18.5mm with sensitivity 74.8% and specificity 63.6% in perimenopause and 12.2mm with sensitivity 81.0% and specificity 65.8% in postmenopausal women. Women with AUB, endometrial malignancy should be suspected when endometrial thickness on TVS >18.5mm and >12.2mm in perimenopause and postmenopausal age group respectively. TVS has high sensitivity in detection of endometrial malignancy both in perimenopausal and postmenopausal women with AUB and TVS is a reliable, noninvasive method.