Key result
Patients with idiopathic ventricular fibrillation had significantly lower QT-RR (0.092 vs 0.137, P<0.001) and QaT-RR slopes compared to healthy controls.
Why the study?
Do patients with idiopathic ventricular fibrillation have different QT-RR and QaT-RR repolarization dynamics compared to healthy controls?
Case-Control (n=37)
Do patients with idiopathic ventricular fibrillation have different QT-RR and QaT-RR repolarization dynamics compared to healthy controls?
Absolute Event Rate: 0.092% vs 0.137%
p-value: p=<0.001
Patients with idiopathic ventricular fibrillation exhibit unique repolarization dynamics with impaired QT and QaT prolongation at longer RR intervals, which may relate to nocturnal VF episodes.
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Distinct QT-RR dynamics in IVF; hypothesis-generating for ion channel effects, needs prospective validation before clinical use.
Fujiki et al. (2004) conducted a case-control in Idiopathic ventricular fibrillation (n=37). Idiopathic ventricular fibrillation vs. Healthy controls was evaluated on QT-RR slope (p=<0.001). Patients with idiopathic ventricular fibrillation had significantly lower QT-RR (0.092 vs 0.137, P<0.001) and QaT-RR slopes compared to healthy controls.
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