Aim: 

to investigate the influence of transection of branches of ramus pyloricus nervi vagi (RPNV), which innervates pylorus in regulation of gastric emptying.

Methods: 

the investigations were carried out in chronical experiments on 2 groups (7 dogs) of dogs with fistulas of fundic part of stomach and duodenum. The dogs of first groups (4 dogs) were with intact nervous system (INS). The dogs of the second groups (3 dogs) were after operation of cutting of RPNV. Evacuation from stomach was investigated by the method of draining the duodenal fistula with 100 gram of bread mixed with 600 rubber corpuscles and red rubber corpuscles (3 ( 3 ( 4 mm), which were markers. In every 30 minutes sample of chyme we established amount of rubber corpuscles in it. Amount of corpuscles shows the part of food which left the stomach for each 30 minutes.

Results: 

The vagotomy of RPNV lead to the disturbance of proportion of the exit of the big (red) and small (black) corpuscles from the stomach. In the first and second half an hour of the evacuation process we observed the same exit of all corpuscles from the stomach. Thus 40-50% from the general amount of small (black) and big (red) corpuscles have left the stomach. In the third and fourth half an hour the amount leaving decreased to the 12-14% of the total amount.

Conclusion: 

The obtained results must be taken into account when performing such operations like pancreato-duodenal resection, duodenectomy.