Hysteroscopic Endometrial Resection: Results and Risk Factors for Failures - Revista Brasileira de Ginecologia e Obstetrícia

Original Article

Hysteroscopic Endometrial Resection: Results and Risk Factors for Failures

Purpose: to evaluate the results of 64 hysteroscopic endometrial ablations using a resectoscope in women with abnormal uterine bleeding of benign etiology and nonresponsive to clinical measures and to describe the failures and their associated conditions. Methods: sixty-four patients with abnormal uterine bleeding were submitted to the intervention between April 1994 and February 2000. The mean age was 42.9 years and the mean parity, 2.6 deliveries. Diagnostic hysteroscopy and endometrial biopsy were performed preoperatively. Before surgery, two women received gestrinone, six danazol and 44 GnRH analogue. During the surgery electric cauterization of the fundus uteri and cornual regions was made. Afterwards, with a resectoscope, the endometrium was removed as far as 1 cm above the internal ostium, and as deep as 2 to 3 mm into the myometrium. The uterine distension was obtained with 1.5% glycine and since two years ago with 3% manitol. The average follow-up was 11.5 months. After six months of endometrial ablation, the patients with persistence of symptoms were submitted to hysterectomy. Results: amenorrhea occurred in 31.2% of the patients and hypomenorrhea in 45.3%. The abnormal bleeding was maintained in 23.5%. There was one uterine perforation during the dilatation of the cervix. Results were better in the higher age and parity ranges and in the women who received GnRH analogues (p=0.03). Where the method was not successful there was a statistically significant frequency of submucous myoma (p=0.04) and a nonsignificant increase of secretory endometrium (p=0.12). Conclusions: the method is useful for the management of abnormal uterine bleeding of benign etiology. Previous administration of GnRH analogue is recommended. We suggest a special follow-up for the younger, low parous women, and those with submucous myoma, because they are the group with the poorest results.

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