Abstract
The selective proximal vagotomy for peptic ulcer has some difficulty in the operative technique and this operation has higher recurrence rate than conventional gastrectomy.
We attempted to block the vagus nerve through irradiation of the gastric serosa with carbon dioxide laser in order to simplify the operative technique and to make sure of the effect.
The carbon dioxide laser with the out put power of 30 watts as a deforcused beam with diameter of 10mm moved at speed of 10mm/sec. was the optimum condition for the degeneration of the subserosal vagus nerves. The vagus nerves were completely blocked on electrophysiological and histological studies and there were no regenerative findings one month after laser radiation.
The blocking of the vagus nerves on the gastric wall with laser prevented from duodenal ulcer induced by cysteamine in the rat.
