A comparison of gas and liquid for hysteroscopy.

Attempts to inspect the uterine cavity heretofore have been thwarted because of inability to obtain its sustained adequate expansion, concern about introducing infection into the peritoneal cavity through the tube with liquid or gaseous media and the provocation of endometrial bleeding during manipulation. Recent mechanical and optical innovations may give the gynecologist the capability of overcoming these problems. In this presentation the focus was on the comparison of gas and liquid as the distending medium for hysteroscopy.