Risk Assessment of Endometrial Hyperplasia and Endometrial Cancer: Development and Validation of Clinical-ultrasound Based Scoring System(A Cross Sectional -Validation Study)
试验速览
- 阶段
- 不适用
- 入组人数
- 328
- 试验地点
- 1
- 主要终点
- prevalence of endometrial cancer, endometrial hyperplasia
研究概览
简要总结
Abnormal uterine bleeding (AUB) represents common diagnostic challenge in everyday gynecological practice. However, abnormal bleeding is a common symptom of many benign diseases and only indicates the presence of EC in 9% of postmenopausal women and 1% to 2% of premenopausal women, suggesting that many women at low risk undergo unnecessary invasive procedures to rule out cancer. The aim of the study is to create a risk-scoring model of endometrial hyperplasia and endometrial cancer.
详细描述
Approximately 90% of endometrial cancer (EC) cases are preceded by AUB in premenopausal or perimenopausal women or post-menopausal bleeding (PMB).Transvaginal ultrasonography(TVS) has become the first step diagnostic tool of AUB. The main advantage of ultrasound imaging is that it has high accuracy for the preoperative classification of intra and extra uterine lesions, both benign and malignant. If increased endometrial thickness (ET) is found in women with PMB, the risk of EC increases. However, in women with type II EC, ET below 3-4 mm might also be found. Because of these limitations, ET should not be the only factor for cancer risk estimation in women with AUB.
Three-dimensional sonography and blood flow vascular indices improve the diagnostic precision of the sonographic estimation of endometrial lesions. Several scoring systems using different ultrasound image characteristics were proposed to estimate the risk of EC in women with AUB including the recently proposed system" Risk of Endometrial Cancer scoring model "(REC).
Existing guidelines recommend considering clinical risk factors such as BMI, age, obesity, type II diabetes, polycystic ovary syndrome(PCOS) and use of unopposed estrogen when evaluating AUB. However, only few clinical risk prediction models have been developed.
Despite the important role of ultrasound imaging in assessment of endometrial lesions, one wonders if clinical variables can improve the diagnostic performance of risk prediction models.
The aim of the study is to create a risk-scoring model of endometrial hyperplasia and endometrial cancer using patient clinical characteristics and ultrasound image characteristics among women with abnormal uterine bleeding, and to validate the diagnostic performance of our model and to compare it's predictive value with the recently proposed REC score for EC risk stratification.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 40 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •women ≥40 years with pre- or perimenopausal AUB or PMB presenting to Women's Health Hospital, Department of Obstetrics and Gynecology, Faculty of medicine, Assiut University, Assiut, Egypt.
排除标准
- •Women with a vaginal bleeding arising from a cervical, vaginal or vulvar disease.
- •Patients with cervical cancer or uterine metastases.
- •History of prior hysterectomy, prior pelvic radiation, endometrial sampling within the past 3 months.
- •Presence of existing pregnancy.
- •Women with inadequate endometrial sampling or with no histopathological diagnosis.
结局指标
主要结局
prevalence of endometrial cancer, endometrial hyperplasia
时间窗: 3 years
Magnitude and prevalence of endometrial cancer, endometrial hyperplasia using a practical clinical-ultrasound based scoring system.
次要结局
- prevalence of endometrial benign lesions(3 years)
研究者
Norhan Tarek Sayed
assistant lecturer of obstetrics and gynecology, Faculty of medicine
Assiut University