[Comparison of effort-ECG and radionuclide ventriculography in relation to the detection of XXXX in isolated stenoses of the anterior interventricular branch].

@entity1 @entity301 @entity1188 @entity741 @entity299 @entity3980 @entity583 @entity2849
21 @entity1 with @entity3980 of at least 70% and 21 @entity1 with @entity3980 and additional intramural anterior wall @entity1188 were studied. 20 @entity1 without @entity299 or after successful transluminal coronary angioplasty and 18 @entity1 with intramural anterior wall @entity1188 after successful transluminal dilatation of the LAD (remaining stenosis maximal 30%) served as controls. The normal range of global and regional left ventricular ejection fraction response to exercise was defined based on the data of 25 further @entity1 without relevant @entity301 . Thus, a decrease in global ejection fraction and regional wall motion abnormalities were judged pathological. All @entity1 were comparable with respect to age, ejection fraction at rest and work load. @entity741 could be detected by the exercise ECG in 81% of all @entity1 without @entity1188 and in 71% of @entity1 with @entity1188 . The corresponding values for global left ventricular ejection fraction were 76% and 81%, respectively, and for regional ejection fraction 95% in both groups. No false-positive exercise ECGs were observed in the healthy controls and 2 (11%) in the corresponding group with intramural @entity1188 . The global ejection fraction was pathological in 1 (5%) healthy subject without @entity1188 and in 3 (17%) corresponding @entity1 with @entity1188 . Sectorial analysis revealed 5 and 22%, respectively. Our findings suggest that the exercise ECG has a limited sensitivity to detect @entity741 in @entity1 with isolated @entity3980 and intramural @entity583 . Radionuclide ventriculography yields pathological values more often; however, @entity2849 occur more frequently.
