Table 8.
Consensus statement on CMR | Symbol | Ref |
---|---|---|
CMR should be performed in all AMVP patients who survived a cardiac arrest or experienced sustained VA, beforea implanting an ICD for secondary prevention. | 155,157 | |
CMR should be performed in all patients when echocardiography does not provide accurate assessment of LV and RV function and/or evaluation of structural changes. | Expert consensus | |
CMR should be performed in all MVP patients with a history of unexplained syncope and/or NSVT. | Expert consensus | |
CMR should include assessment of LV size and function, assessment of MR severity, leaflet length/thickness measurement, MAD characterization and curling, and LGE assessment. | Expert consensus | |
CMR may be useful in patients with AMVP and at least 1 phenotypic risk featureb. |
CMR should not unduly delay the implantation of a defibrillator.
Phenotypic risk features—palpitations, T-wave inversion in the inferior leads, repetitive documented polymorphic PVCs, MAD phenotype, redundant MV leaflets, enlarged left atrium or ejection fraction ≤ 50%.
AMVP, arrhythmic mitral valve prolapse; CMR, cardiac magnetic resonance; ICD, implantable cardioverter defibrillator; LGE, late gadolinium enhancement; LV, left ventricular; MAD, mitral annular disjunction; MR, mitral regurgitation; RV, right ventricle; VA, ventricular arrhythmia.