Evaluation of A Clinical Diagnostic Test for CRDS
Evaluation of a Clinical Diagnostic Test for Calcium Release Deficiency Syndrome: The DIAGNOSE CRDS Study
Population Health Research Institute
400 participants
Feb 2, 2023
INTERVENTIONAL
Conditions
Summary
Calcium Release Deficiency Syndrome (CRDS) is a novel inherited arrhythmia syndrome secondary to RyR2 loss-of-function that confers a risk of sudden cardiac death. Diagnosis of CRDS presently requires cellular-based in vitro confirmation that an RyR2 variant causes loss-of-function. We hypothesize that CRDS can be diagnosed clinically through evaluation of the repolarization response to brief tachycardia, mediated by cardiac pacing, and a subsequent pause.
Eligibility
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Interventions
1. Ventricular 10 beat burst at 500ms (120bpm) 2. Ventricular 10 beat burst at 400ms (150bpm) 3. Atrial 10 beat burst at 500ms (120bpm) 4. Atrial 10 beat burst at 400ms (150bpm).
Locations(20)
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NCT06188689