This randomized study was carried out to compare pain factors of Vabra and Endocell by an ordered classification of one to ten to evaluate the respective pathological yield and to establish the clinical acceptability. Patients had endometrial evaluation either for abnormal bleeding, abnormal endometrial line as demonstrated by echography or abnormal endometrial cells in the Pap smear. Age, gravidity, parity and hysterometry were similar in both groups, with abnormal bleeding being the most frequent indication (250/370 patients, 67.5%). Both techniques yielded equal results for insufficient tissue retrieval at 46/184 (25.0%) for Vabra and at 50/183 (27.3%) for Endocell. The pain score differed significantly in favor of Wallach Endocell at 4.36 ± 2.38 versus Vabra at 5.65 ± 2.41 (p = 0.001). Vabra and Endocell give similar pathological results; however, Endocell is significantly less painful and easier to manipulate and carry because of its weight (1.69 g vs. 37.80 g).

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