[Correlation between late potentials, left ventricular function and coronary heart disease].
By signal averaging it is possible to registrate late, fragmented low amplitude signals (late potentials, LP's) from the bodysurface 26 patients (21 males, 5 females) with a mean age of 57 years were investigated by signal averaging, Holter-monitoring and cardiac catheterization. 11 patients had a dilative cardiomyopathy (group A), 10 patients a coronary heart disease (group B), 5 of them with an ejection fraction greater than 50%, 5 of them with a reduced ejection fraction, whereas the control-group with 5 patients (group C) showed no coronary stenosis or reduced ventricular function, 6 out of 11 patients with dilative cardiomyopathy showed LP's; all of these with Lown IVb had LP's. In 2 patients with coronary heart disease and good left ventricular function late potentials were found, and in all 5 patients with disturbed left ventricular function. The control-group revealed no late potentials although 4 patients had Lown IVa or more in Holter-ECG. In conclusion, late potentials show a good correlation to malignant ventricular ectopic beats in patients with dilative cardiomyopathy and coronary heart disease, especially when the left ventricular function is reduced.
Rotman
B
B
Medizinischen Universitätsklinik Graz.
Eber
B
B
Dusleag
J
J
Brussee
H
H
Weinrauch
V
V
Klein
W
W
D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D002311:Cardiomyopathy, Dilated / Q000503:physiopathology*; D017023:Coronary Angiography; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016277:Ventricular Function, Left / Q000502:physiology*
Korrelation zwischen Spätpotentialen, Linksventrikulärer Funktion und koronarer Herzkrankheit.