Objective: To evaluate the benefits of systematic preoperative treatment with LH- RH agonists prior to endometrial resection (ER). Study design: The study population was made up of 98 premenopausal women who underwent resectoscopic treatment for abnormal uterine bleeding (AUB) between January 1996 and December 1997. Only patients with endometrial polyps or dysfunctional bleeding were included. The population was divided into two groups: patients who had (group B) and those who had not (group A) received LH- RH before the surgical intervention. Results: ER was carried out as a single procedure in 66 (67.5% ) of the patients. ER plus polypectomy was necessary in 32 (32.5% ) patients. There were no differences between the two groups as far as the operating time and total volume of distension medium were concerned. No intraoperative complications were seen in either group. A higher negative balance of distension medium was achieved in group A (320 ± 23 mL versus 187 ± 16 mL; P <0.001), and this difference was not modified when cases with polyps were excluded. The failure rate was similar in both groups both at 12 months [group A 6 (14.8% ) versus group B 7 (14.9% ) patients] and at 60 months [group A, 11 (21.6% )- versus group B 10 (21.2% ) patients]. Likewise, the amenorrhea and hypomenorrhea rates at 12 months and at 60 months were also shown to be the same in both groups. When two doses of LH- RH are used and the failure rate is taken into account the cost of an acceptable outcome increases from e843.37 to e1373.49 per patient, while the total cost of a hysterectomy is e1355.42. Conclusions: Endometrial suppression with LH- RH agonists did not guarantee better results of ER, but they are strongly recommended during the learning curve to achieve a safer procedure.
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