RESUMEN
A prospective multicentre study was designed to ascertain the value of hysteroscopy in the evaluation of female infertility. The study comprises 619 CO2 hysteroscopies in women complaining of infertility. Four hundred and ninety nine examinations (80%) were performed without anaesthesia or cervical dilatation. Twenty eight cases of malformation were diagnosed. Adhesions were found in 68 patients (11%), polypi in 56 (9.1%) and submucous fibroids in 51 (8.2%). Endometrial hyperplasia was diagnosed by hysteroscopy in 67 patients, but there was only 42% histological correlation. Examination of the tubal ostia by hysteroscopy revealed 26 patients (4%) with unilateral tubocornual polyps and one with bilateral polyps. The correlation with hysterosalpingography (HSG) in 185 patients was poor. In 20% where the HSG was reported as normal there were hysteroscopically demonstrable lesions whereas there were false positive findings at HSG in 35% of cases. Hysteroscopy is the only technique which provides an accurate clinical evaluation of the uterine cavity although it does not provide significant information about the cervical canal or fallopian tubes.