Why the study?
Manual algorithm methods for differentiating wide QRS complex tachycardias are limited by their heavy reliance on ECG interpreter competency for proper execution.
Does the Mayo Clinic ventricular tachycardia calculator (MC-VTcalc) accurately differentiate VT from SWCT in patients presenting with wide QRS complex tachycardia?
Does the Mayo Clinic ventricular tachycardia calculator (MC-VTcalc) accurately differentiate VT from SWCT in patients presenting with wide QRS complex tachycardia?
The MC-VTcalc provides a simple, automated method to estimate VT probability using standard computerized ECG measurements, potentially reducing reliance on manual interpretation skills.
May aid WCT differentiation on ECG; hypothesis-generating and requires validation before practice change.
The discrimination of ventricular tachycardia (VT) versus supraventricular wide complex tachycardia (SWCT) via 12-lead electrocardiogram (ECG) is crucial for achieving appropriate, high-quality, and cost-effective care in patients presenting with wide QRS complex tachycardia (WCT). Decades of rigorous research have brought forth an expanding arsenal of applicable manual algorithm methods for differentiating WCTs. However, these algorithms are limited by their heavy reliance on the ECG interpreter for their proper execution. Herein, we introduce the Mayo Clinic ventricular tachycardia calculator (MC-VTcalc) as a novel generalizable, accurate, and easy-to-use means to estimate VT probability independent of ECG interpreter competency. The MC-VTcalc, through the use of web-based and mobile device platforms, only requires the entry of computerized measurements (i.e., QRS duration, QRS axis, and T-wave axis) that are routinely displayed on standard 12-lead ECG recordings.
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Kashou et al. (2023) studied this question.
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