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KMID : 1137020200310040051
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Journal of Gynecologic Oncology
2020 Volume.31 No. 4 p.51 ~ p.51
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Comparison of diagnostic accuracy between endometrial curettage and aspiration biopsy in patients treated with progestin for endometrial hyperplasia: a Korean Gynecologic Oncology Group study
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Kim Mi-Kyoung
Seong Seok-Ju
Park Dong-Choon
Hong Jin-Hwa
Roh Ju-Won
Kang Soon-Beom
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Abstract
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Objective: To compare the diagnostic accuracy of dilatation and curettage (D&C) versus endometrial aspiration biopsy in follow-up evaluation of patients treated with progestin for endometrial hyperplasia (EH)
Methods: A prospective multicenter study was conducted from 2015 to 2018. Patients with EH were treated with progestin, one of the following three treatment regimens: oral medroxyprogesterone acetate (MPA) 10 mg/day for 14 days per cycle, continuous MPA 10 mg/day or the levonorgestrel-releasing intrauterine system (LNG-IUS). At 3 or 6 months of treatment, endometrial tissues were obtained via 2 methods in each patient: aspiration biopsy, followed by D&C. The primary outcome was the consistency of the histologic results between the 2 methods. The secondary outcome was the regression rate at 6 months of treatment.
Results: The study population comprised 65 patients (55 with non-atypical hyperplasia, 10 with atypical hyperplasia). During the follow-up, a comparison of the pathologic results from aspiration biopsy and D&C was carried out for the 65 cases. Thirty-eight cases were diagnosed as EH by D&C. Among these, only 24 were diagnosed with EH from aspiration biopsy, for a diagnostic concordance of 63.2% (ĸ=0.59). Forty-four patients were followed up at 6 months, and the regression rate was 31.8% (14/44). Responses were obtained for 41.7% (5/12) of the cyclic MPA group, 58.3% (7/12) of the continuous MPA group and 10% (2/20) of the LNG-IUS group.
Conclusion: As a follow-up evaluation of patients treated with progestin for EH, aspiration biopsy is less accurate than D&C and might not be a reliable method.
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KEYWORD
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Endometrial Hyperplasia, Progesterone, Levonorgestrel, Intrauterine Device, Dilatation and Curettage, Biopsy
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