ArticleOrphanet journal of rare diseases2025
Genotype and cardiac outcome in patients with cardiocutaneous syndrome (Naxos disease variant: Carvajal syndrome).
Article in Orphanet journal of rare diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Clinical and Genetic Characteristics of Hereditary Arrhythmias and Cardiomyopathies in the Middle East.Mayo Clinic proceedings. Innovations, quality & outcomes · 2026Review
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Abstract
backgroundNaxos disease variant (Carvajal syndrome) is a cardiocutaneous genetic disease caused by Plakoglobin and Desmoplakin gene mutation, and usually manifests with woolly hair, palmoplantar keratoderma, and cardiomyopathy, and are found to have a high risk for uncontrolled arrhythmia.
methodsAn observational retrospective cohort study was conducted at King Faisal Specialist Hospital & Research Center in Riyadh, Saudi Arabia, a tertiary care hospital, which included 10 Saudi pediatric patients with clinical manifestations that indicate Naxos disease variant. The medical records of the patients were analyzed such as Echocardiography parameters (for ventricular function assessment), electrocardiography (ECG), 24-h Holter (for arrhythmias), and genetic analysis results were collected to confirm the medical diagnosis.
resultWe report 10 Saudi pediatric patients with Naxos disease variant who presented with severe dilated cardiomyopathy manifestation. All the patients had woolly hair, and half had palmoplantar keratoderma. They all had severely dilated and depressed left ventricular systolic function, and nine of them also had depressed right ventricular systolic function. Frequent premature ventricular tachycardias (PVCs) were reported in nine cases, and an implantable cardioverter defibrillator (ICD) was implanted in 3 patients for uncontrolled ventricular tachycardias. Moreover, four patients underwent heart transplantation, and three died suddenly while waiting for a heart donation. Finally, in 8 patients, genetic studies were homozygous for Desmoplakin gene (DSP), confirming the diagnosis.
conclusionNaxos disease variant is accompanied by high risk of arrhythmia and sudden cardiac deaths, so family members of proband need an extensive genetic workup for identification of gene carriers for counseling, especially in our Arab countries where consanguineous marriage is common. Moreover, hair and skin phenotypes in a child should alert for signs of cardiomyopathy manifestation.
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