VALUE OF TRANSESOPHAGEAL LEFT ATRIAL-PACI NG AND BICYCLE ERGOMETRY INTHE DIAGNOSIS OF CORONARY HEART-DISEASE IN PATIENTS WITH ARTERIAL-HYPERTENSION - COMPARATIVE-ASSESSMENT

To make a comparative assessment of transesophageal left atrial pacing (TLAP) and bicycle ergometry (BE) in the diagnosis of coronary heart disease (CHD) in patients with arterial hypertension (AH) of different origin, the authors examined 56 patients. The patients underwent TLAP and selective coronary angiography, them 39 patients had BE testing. No significant differences were found in their specificity (73 and 78 %) and sensitivity (92 and 81 %) between TLAP and BE, respectively. Th e maximum heart rate in CHD patients with AH was significantly higher (130+/-6 per min) during TLAP than that in BE (112+/-5 per min, p>0.05 ), ischemic changes occurring at the same value of double product desp ite the mode of myocardial ischemia induction in these functional test s (240+/-10- and 236+/-12 arbitrary units, respectively; p<0.05). The mean systolic blood pressure was higher in TLAP and in BE (210+/-10 an d 185+/-8 mm Hg). This follows that TLAP and BE finding are comparable and no profound changes occur in TLAP, hence it can be recommended fo r wide application in the diagnosis of CHD in AH patients.