Hysteroscopy was performed on 75 patients undergoing a dilatation and curettage for routine gynecologic problems. For the distetnion of the uterine cavity carbon dioxide was used and found to be an adequate medium to establish a pneumometra. It provided good visualization and was simple and safe to use for the hysteroscopic examination. Arterial blood-gas determinations revealed no change in the POI PCO2, and pH with carbon dioxide insufflation. There were no complications in this series. The advantages and applications of carbon dioxide hysteroscopy are outlined.
