October 1, 2003Pacing and Clinical Electrophysiology
Filtered QRS Duration on Signal‐Averaged Electrocardiography Predicts Inducibility of Ventricular Tachycardia in Arrhythmogenic Right Ventricle Dysplasia
Key result
Filtered QRS duration ≥110 ms on signal-averaged ECG predicted the inducibility of sustained monomorphic VT in ARVD patients with 91% sensitivity, 90% specificity, and 90% accuracy.
Why the study?
Does signal-averaged electrocardiography predict the inducibility of ventricular tachycardia in patients with arrhythmogenic right ventricular dysplasia?
Population
31 patients with arrhythmogenic right ventricular dysplasia diagnosed with McKenna's criteria who underwent…
Design
Cross-sectional
Authors
Discussion
Loading...
Member takes
Implication
May support signal-averaged ECG for ARVD risk stratification; leaves open prospective validation before guiding decisions.
Study Design
Type
Observational (n=31)
Structured PICO
Does signal-averaged electrocardiography predict the inducibility of ventricular tachycardia in patients with arrhythmogenic right ventricular dysplasia?
P
Population
31 patients with arrhythmogenic right ventricular dysplasia (ARVD) diagnosed with McKenna's criteria who underwent electrophysiological study
I
Intervention
Signal-averaged electrocardiography (SAECG)
O
Outcome
Inducibility of sustained monomorphic ventricular tachycardia during electrophysiological studysurrogate
Main Result
p-value: p=0.007
Filtered QRS duration ≥110 ms on signal-averaged ECG is highly predictive of inducible ventricular tachycardia in patients with arrhythmogenic right ventricular dysplasia, potentially aiding in risk stratification.
Cite This Study
Nasir et al. (2003) conducted an observational in Arrhythmogenic right ventricular dysplasia (ARVD) (n=31). Signal-averaged electrocardiography (SAECG) was evaluated on Inducibility of sustained monomorphic VT (p=0.007). Filtered QRS duration ≥110 ms on signal-averaged ECG predicted the inducibility of sustained monomorphic VT in ARVD patients with 91% sensitivity, 90% specificity, and 90% accuracy.