Introduction/Background The incidence of endometrial cancer in Korea is steadily increasing. Excess body weight is a well-known risk factor for recurrence in endometrial cancer. The effectiveness of bariatric surgery in obese patients is well known. The oncologic outcome of bariatric surgery in endometrial cancer patients is unknown. Here we present the cases of bariatric surgery in Korean women with endometrial cancer.

Methodology We searched the patients who underwent bariatric surgery and were diagnosed with endometrial cancer. The patient demographics, surgical treatment, and postoperative outcomes were reviewed.

Results Four patients underwent bariatric surgery after a diagnosis of endometrial cancer. Mean age at operation was 38 [27–47, year old], and mean BMI was 36.3 [32.4 38.9]. All patients had been diagnosed with diabetes and 2 had hypertension. Laparoscopic sleeve gastrectomy was performed on all the patients and there were no leakage, bleeding, obstruction, and reoperation within 30 days. Mean operation time was 84 [70–95. min] with 5 – 6 staples and blood loss was minimal (<10 ml). Preoperative and postoperative weight was 91 vs. 70 kg and HbA1c was 8.3 and 5.4 g/dl, respectively.

Conclusion Because of obesity, there are increasing numbers of endometrial cancer in Korean women. Various bariatric surgeries can be performed in high BMI patients and the effects of these surgeries are high. We can expect weight loss and bariatric surgery to decrease the risk of oncologic outcomes also.