[Usefulness of esophageal ECG as a study method for the differential diagnosis of perforated ulcers and myocardial infarct].

The Authors have examined 100 patients with suspected perforated ulcer and have executed besides the usual examination also an oesophageal ECG with modified method and a polygraphic examination. In 9 patients it is possible to identify to the oesophageal ECG and infarct of the myocardium, which interested the upper part of left ventricle's posterior wall, from the Authors indicated as "underconnectional", is not explorable by traditional ECG. Oesophageal ECG examination is important for to settle the doubtful chances of the perforated ulcer from the myocardium infarct.