Objective To evaluate the diagnostic accuracy of outpatient hysterosco
py. Methods Outpatient CO2 hysteroscopy using video-camera for monitor
ing was performed on 429 patients from November 1995 to December 1996.
The indications included post-menopausal bleeding (32.2%), menorrhagi
a (25.4%), irregular bleeding (24.7%), intermenstrual spotting (10.2%)
and others (7.5%). Results Hysteroscopy was successfully performed on
420 (97.9%) patients. Although no anaesthetics were used, only two (0
.47%) patients complained of severe pain during the procedure. Twenty-
one (4.9%) patients had poor view due to submucosal fibroid or bloody
view. There were no operative complications. Normal uterine cavity was
found in 36.8% and atrophic endometrium in 34.7% of patients. The pat
hologies included submucosal fibroid (10.7%), endometrial polyp (5.8%)
and fibroid polyp (2.8%). Five (1.2%) out of 429 patients were confir
med histologically to have endometrial carcinoma. No malignant lesions
were missed. A total of 372 (86.7%) patients had histological confirm
ation of hysteroscopic findings. In 57 (13.2%) patients, the histologi
cal results did not correlate with the hysteroscopic findings. Conclus
ions Outpatient hysteroscopy and suction curettage is a safe, cost-eff
ective and acceptable procedure.