Body surface potential maps outperformed ECG and VCG in diagnosing left ventricular asynergy, achieving a sensitivity of 84.3% and specificity of 71.4%.
Does body surface potential mapping (BSPM) improve the detection of left ventricular asynergy compared to ECG and VCG in patients with coronary artery disease?
Body surface potential mapping is superior to standard ECG and vectorcardiography for detecting left ventricular asynergy in patients with coronary artery disease.
Absolute Event Rate: 0% vs 0%
The ability of electrocardiograms (ECG), vectorcardiograms (VCG) and body surface potential maps (BSPM) to predict left ventricular asynergy was evaluated in 100 consecutive patients with coronary artery disease, 51 patients (51%) of whom with and 49 (49%) without ventricular asynergy. With regard to the diagnosis of ventricular asynergy, the electrocardiographic sign of pathologic Q waves had a sensitivity of 58.8%, a specificity of 44.9%, a positive predictive value of 52.6%, and a negative predictive value of 51.2%. The vectorcardiographic pattern of myocardial infarction gave the corresponding predictive value of 66.7, 46.9, 56.7 and 57.5%, respectively. Finally, the so-called abnormal ‘early reversal’ BSPM - the abnormal BSPM pattern with absolute value of potential minimum over potential maximum in the early ventricular depolarization - achieved the corresponding predictive value of 84.3, 71.4, 75.4 and 81.4% respectively. Our data suggest that: (1) BSPM is useful in the detection of left ventricular asynergy, and (2) BSPM is superior to ECG and VCG in the diagnosis of left ventricular asynery.
Tseng et al. (Fri,) reported a other. Body surface potential maps outperformed ECG and VCG in diagnosing left ventricular asynergy, achieving a sensitivity of 84.3% and specificity of 71.4%.