Prospective evaluation of uterine artery Doppler for prognosis in endometrial cancer: A tertiary single-center experience.

Aims: Our research aims to shed light on the connection between histopathological differences that affect the prognosis of endometrial cancer and Doppler indices measured in the uterine arteries.
Methods: Seventy-four women with a confirmed diagnosis of endometrial cancer participated in this prospective study. The flow characteristics of the bilateral uterine arteries were evaluated and recorded using color Doppler sonography. After hysterectomy, a correlation analysis was performed between these factors and histological findings.
Results: Patients who complained of menometrorrhagia had significantly higher uterine artery peak systolic flow (p = 0.020) than those who had postmenopausal vaginal bleeding. Endometrioid adenocarcinoma was the most common type (71.4%). Doppler pulsatility index and resistance index in the uterine arteries didn't show statistically significant differences between histologic subtypes, tumor grade, myometrial invasion, lymphovascular invasion, lymph node involvement, malignant peritoneal cytology, genetic mutation, or extrauterine involvement. Those without cervical involvement had higher uterine artery Doppler peak systolic flow/end diastolic flow (p = 0.024).
Conclusions: Endometrial cancer made uterine artery, myometrium and endometrium less resistant to blood flow. However, these blood flow indices have not been standardized enough to be utilized as diagnostic tests just yet. Standardization based on more advanced studies would make it possible to use ultrasonography for non-invasive diagnosis and would accelerate and facilitate clinical management.
(© 2024 Japan Society of Obstetrics and Gynecology.)