Objective: To evaluate the practice of Thai gynecologic oncologists on conservative treatment for endometrial cancer patients and influencing factors.

Materials and Methods: This study was a part of the national survey by the Thai Gynecologic Cancer Society (TGCS) on the
management of gynecologic cancer. All Thai Gynecologic Oncologists who had been in practice for at least 1 year were invited to respond to the web-based questionnaire which was active from August to October, 2019. Data involving the practice of conservative treatment for endometrial cancer patients were abstracted and analyzed.

Results: Of 170 respondents, 85.3% considered conservative treatment options if the patient needed childbearing. Among the
respondents who considered conservative treatment, 84.1% considered one or more clinic-pathological features for conservative treatment. The two most frequent features of which included an absence of myometrial invasion (82.8%) and low-grade tumor (78.6%). The respondents working in training hospitals considered tumors without myometrial invasion more frequently than those in service-only hospitals (89.6% vs. 75.0%; p = 0.020. No significant differences of other clinic-pathological features were noted across the different hospital settings or duration of practice.

Conclusion: Most of Thai gynecologic oncologists considered conservative treatment option if the patient needed childbearing. The most frequently considered features were an absence of myometrial invasion and low-grade tumor.

Keywords: Survey, Practice, Endometrial cancer, Conservative treatment