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[Arrhythmogenic right ventricular myocardiopathy. A study of a family group]
1Divisione di Cardiologia, Ospedale di Massa.
Insights
This study details four male patients with familial right-ventricular dysplasia, highlighting its genetic inheritance and severe clinical features in extensive forms. Early onset and worsening symptoms are noted, with dominant autosomal inheritance observed.
Area of Science:
- Cardiology
- Genetics
- Medical Diagnostics
Context:
- Familial occurrence of right-ventricular dysplasia (RVD) presents diagnostic and prognostic challenges.
- Understanding the inheritance patterns and clinical spectrum of RVD is crucial for patient management.
Purpose:
- To report and analyze cases of familial right-ventricular dysplasia in male patients.
- To characterize the clinical, electrocardiographic, echocardiographic, and scintigraphic features of RVD.
- To investigate the inheritance pattern and progression of the disease.
Summary:
- Four male patients with familial right-ventricular dysplasia were diagnosed using comprehensive clinical and diagnostic criteria.
- Patients exhibited ventricular arrhythmias with left bundle branch block and sinus arrhythmias; two had sustained ventricular tachycardia.
- The most severe clinical manifestations were associated with extensive disease involving the right atrium and left ventricle, appearing early and progressing over time.
Impact:
- Identifies dominant autosomal inheritance, predominantly affecting males, in right-ventricular dysplasia.
- Correlates disease severity with the extent of cardiac involvement (right atrium and left ventricle).
- Emphasizes early onset and progressive nature of severe clinical features in familial RVD.
Abstract:
In this paper, we report the cases of 4 male patients (mean age 32.7 yr) with right-ventricular dysplasia, that occurred in familial form. Diagnosis was possible according to the clinical features and to the electrocardiographic, echocardiographic and scintigraphic criteria; at Holter monitoring recorded ventricular arrhythmias with left bundle branch block configuration, associated to sinus arrhythmias (sino-auricular block). In two patients a sustained ventricular tachycardia was recorded. The patients are living and a fourteen-year-old subject is without heart disease. From our data we conclude that: the most serious clinical features occur in extensive form with right atrial and left-ventricle involvement; the clinical features were manifested at a young age and then got worse. A dominant autosomic inheritance is observed (only males were affected).