Importance of transesophageal pacing of the atrium in the diagnosis of ischemic heart disease

: The diagnostic importance of transesophageal pacing of the atria (TPA) in revealing coronary heart disease was determined by means of comparing the pacing data with the clinical picture of the disease and coronarography readings in 231 patients. It is shown that the sensitivity of TPA in CHD diagnosis is equal to 80%, specificity to 70%, the predicting value of the positive result amounts to 86%, of the negative result to 59%. The greatest diagnostic importance belongs to the positive result of TRA in patients with typical angina pectoris and to the negative result in patients with cardialgia. The sensitivity and predicting value of TRA do not significantly differ from the corresponding indicators of bicycle ergometry. However, TPA is less specific.