In America and Europe, carbon dioxide has been widely used as the
distention medium in hysteroscopy, in contrast to the widespread
use of liquid hysteroscopy in Japan. There are merits and demerits
for both media, but the author prefers liquid hysteroscopy because
of reduced leakage into the abdominal cavity, reduced glare, and
improved debris removal. Although TV images captured with a
flexible endoscope are employed for routine work, the author... more...