Treatment efficiency of comprehensive hysteroscopic evaluation and lesion resection combined with progestin therapy in young women with endometrial atypical hyperplasia and endometrial cancer.

This study aimed to evaluate the efficacy of comprehensive hysteroscopic evaluation and lesion resection combined with progestin therapy in young patients with endometrial atypical hyperplasia (EAH) and early stage endometrial cancer (EEC) who wished to preserve their fertility. Patients with EAH (n = 120) or well-differentiated EEC (n = 40, FIGO stage IA, without myometrial invasion) were retrospectively included. All patients received constant oral progestin combined with hysteroscopic evaluation every 3 months until achieving complete response (CR). The location, number and size of each suspected lesion or cluster were detailly recorded during the hysteroscopy. The median age was 32.0 year-old (range, 22-47 year-old). Totally 148 patients (97.4%) achieved CR while 3 EAH and 1 EEC patients presented with disease progression, and 8 patients were still in treatment. The mean treatment duration for achieving CR was 6.7 ± 0.3 months (range, 1-18 months). After adjusting for patient age, body mass index (BMI), history of pregnancy and type of conservative therapies, lesion size ≤2 cm (OR, 0.701; 95% CI, 0.496-0.991; P = 0.045) was significantly correlated with shorter treatment time to achieve CR. Among 60 patients attempted to conceive after achieving CR, 45.0% (15/60) had been pregnant, 25.0% (15/60) delivered live birth, 13.3% (8/60) are still in pregnancy, while 6.7% experienced spontaneous abortion. Comprehensive hysteroscopic evaluation and lesion resection plus progestin therapy seem to be an effective and safe fertility sparing therapy for patients with EAH or EEC. Endometrial lesion size ≤2 cm correlated with a shorter treatment period to achieve CR.

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