TY - JOUR
T1 - The effect of left ventricular aneurysmectomyon the electrocardiogram
T2 - A study of 77 patients and review of the literature
AU - Vasilomanolakis, Emmanuel C.
AU - Ruggie, Neal
AU - Codini, Michele
AU - Messer, Joseph V.
AU - Denes, Pablo
PY - 1982
Y1 - 1982
N2 - Electrocardiograms (ECGs) were reviewed in patients undergoing left ventricularaneurysmectomy. Post-operatively, significant decreases were noted in ST segment elevation (p<0.001) and anterior (p<0.03) and inferior R wave heights (p<0.002). In addition, abnormal Q waves disappeared in 50% of patients. Comparison of ECG changes between survivors and patients dying of cardiac related events revealed that patients with a preoperative axis of ≥60°, postoperative leftward axis shifts and a marked decrease in ST segment elevation and/or R wave height had significantly higher mortality. Conclusion: 1) Left ventricular aneurysmectomy affects ventricular depolarization as evidenced by a significant loss of R wave height and changes in infarct pattern; 2) LVA affects ventricular repolarization as evidenced by a significant decrease in ST elevation; 3) the ventricular aneurysm appears to contain "viable muscle" that contributes to ventricular depolarization and remains partially depolarized during diastole; and 4) there are prognostic electrocardiographic parameters, which correlate with mortality during postoperative follow-up.
AB - Electrocardiograms (ECGs) were reviewed in patients undergoing left ventricularaneurysmectomy. Post-operatively, significant decreases were noted in ST segment elevation (p<0.001) and anterior (p<0.03) and inferior R wave heights (p<0.002). In addition, abnormal Q waves disappeared in 50% of patients. Comparison of ECG changes between survivors and patients dying of cardiac related events revealed that patients with a preoperative axis of ≥60°, postoperative leftward axis shifts and a marked decrease in ST segment elevation and/or R wave height had significantly higher mortality. Conclusion: 1) Left ventricular aneurysmectomy affects ventricular depolarization as evidenced by a significant loss of R wave height and changes in infarct pattern; 2) LVA affects ventricular repolarization as evidenced by a significant decrease in ST elevation; 3) the ventricular aneurysm appears to contain "viable muscle" that contributes to ventricular depolarization and remains partially depolarized during diastole; and 4) there are prognostic electrocardiographic parameters, which correlate with mortality during postoperative follow-up.
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U2 - 10.1016/S0022-0736(82)80013-7
DO - 10.1016/S0022-0736(82)80013-7
M3 - Article
C2 - 7069335
AN - SCOPUS:0020064937
SN - 0022-0736
VL - 15
SP - 173
EP - 179
JO - Journal of Electrocardiology
JF - Journal of Electrocardiology
IS - 2
ER -