Newer diagnostic criteria for identification of epicardial origin of ventricular tachycardia/premature ventricular complex.
Rahul JainMamta BarmedaSubodh R DevabahktuniShruti GautamRohit JainXiaochun LiPhilip L MarJohn M MillerPublished in: Future cardiology (2020)
Aim: The study defines criteria for localization of ventricular arrhythmias. Materials & methods: Data from 40 premature ventricular complex (PVC)/ventricular tachycardia (VT) were studied. The interval from PVC QRS onset to His potential and ratio of this interval to PVC/VT QRS duration was analyzed. Patients were divided into epicardial and endocardial groups based on mapping/successful ablation site. Results: The interval from PVC QRS onset to His potential in the epicardial versus endocardial group was 99 ± 21 ms and 64 ± 37 ms (p = 0.002). A cut off of 88 ms had a sensitivity of 73% and specificity of 76%. A cut off of 0.50 for the ratio had a sensitivity of 82% and specificity of 72%. Conclusion: Two new parameters can help localization of PVC/VTs origin.
Keyphrases
- cardiac resynchronization therapy
- left ventricular
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- mass spectrometry
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- catheter ablation
- ms ms
- end stage renal disease
- newly diagnosed
- chronic kidney disease
- ejection fraction
- high resolution
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- prognostic factors
- electronic health record
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