[The characteristics of cardiac rhythm regulation in patients with duodenal peptic ulcer].

The authors studied the cardiac rhythm regulation status in 122 patients with duodenal ulcer. The studies were done by using a method of mathematical analysis of cardiac rhythm. Features of cardiac rhythm regulation in duodenal ulcer patients are as follows: central type disturbances in regulation mechanisms; normo- or vagotonic type regulation of cardiac rhythm; sufficiently stable in time status of vegetative homeostasis determining the course (prognosis) of the illness.