In this prospective study, minimally invasive methods of proximal gast
ric vagotomy (PGV) were investigated in male Sprague-Dawley rats. Comp
leteness of vagotomy by traditional operative therapy, by laser denerv
ation of the gastric serosa, and by subserosal or transmucosal injecti
ons of chemoneurolytic agents was evaluated with postoperative Congo r
ed testing, ulcerogenic stimulation of the gastric mucosa, and histoch
emical labeling of whatever vagal fibers remained in the gastric wall.
Short-term results demonstrate that successful PGV can be performed w
ith minimally invasive methods.