Multiparametric SCores for Prediction of Myocardial fIbrosis in Patients With MITral vAlve pRolapse

Multiparametric SCores for Prediction of Myocardial fIbrosis in Patients With MITral vAlve pRolapse: the SCIMITAR Trial

This is a multicenter, observational prospective and retrospective study which aims are: 1) to compute a scoring model potentially predictive for the diagnosis of fibrosis by CMR in patients with MVP; 2) to identify specific features that may predispose to ≥ mild VAs or SCD in patients with MVP.

Patients with mitral valve prolapse and non-significant mitral regurgitation generally have a good prognosis. A minority of patients with MVP suffers from ventricular arrhythmias. Different demographic, clinical, and electrocardiographic characteristics, as well as morphological and structural features of the MV were described as potential risk factors for ventricular arrhythmias, among which fibrosis of the left ventricular inferolateral wall and posterior papillary muscle as detected by cardiac magnetic resonance.

As cardiac magnetic resonance has some limitations, it is unknown if and which patients with mitral valve prolapse should undergo cardiac magnetic resonance in routine clinical practice, to search for late gadolinium enhancement as a surrogate for myocardial fibrosis.

Inclusion Criteria:

• age ≥ 18 years
• Echocardiographic diagnosis of mitral valve prolaspe, defined as a systolic displacement of one or both mitral leaflets ≥ 2 mm above the plane of the mitral valve annulus in long-axis views

Exclusion Criteria:

• age< 18 years
• coexistence of other cardiomyopathies or other ≥ moderate valve diseases
• scarce acoustic transthoracic echocardiographic window
• usual contraindications for cardiac magnetic resonance