[Evaluation of the gastric outlet function of normal and operated stomach using ultrasound].

The functional condition of the gastric outlet was studied by ultrasound in 25 individuals (the comparison group) and in 37 patients after organ-preserving operations for complicated pyloroduodenal ulcers. The diameter of the gastric outlet and the pylorus, the length of the pyloric canal were recorded during the examination and the presence or absence of duodenogastric reflux was noted. A duodenogastric reflux was found in 48% of persons of the comparison group, in 25% of patients after Judd's pyloroplasty and all patients after Finney's pyloroplasty. The data obtained provide evidence that the functional results are better in pylorus-preserving and pylorus-saving operations that in pylorus destroying operations which lead to loss of the obturation function of the pylorus.