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A novel variant in RyR2 causes familiar catecholaminergic polymorphic ventricular tachycardia

Catecholaminergic polymorphic ventricular tachycardia is a rare familial arrhythmogenic disease. It usually occurs in juvenile patients with a structurally normal heart and causes exercise–emotion triggered syncope and sudden cardiac death. The main gene associated with catecholaminergic polymorphic ventricular tachycardia is RyR2, encoding the cardiac ryanodine receptor protein which is involved in calcium homeostasis. After the identification of a 16 year-old man presenting with exercise-induced sudden cardiac death, clinically diagnosed as catecholaminergic polymorphic ventricular tachycardia, we collected the family information and performed a comprehensive genetic analysis using Next Generation Sequencing technology. The initial electrocardiogram in the emergency department revealed ventricular fibrillation. On electrocardiogram monitoring, sinus tachycardia degenerated into bidirectional ventricular and into ventricular fibrillation. Catecholaminergic polymorphic ventricular tachycardia was clinically diagnosed in 5 of the 14 family members evaluated. There were no additional reports of seizures, pregnancy loss, neonatal death, or sudden cardiac death in family members. Genetic analysis of the index case identified only one rare novel variant p.Ile11Ser (c.32T > G) in the RyR2 gene. Subsequent familial analysis identified segregation of the genetic variant with the disease. All current evidence supports that novel p.Ile11Ser variant in the RyR2 gene is a potential disease-causing variant in catecholaminergic polymorphic ventricular tachycardia. To our knowledge, there has been no previous case report of catecholaminergic polymorphic ventricular tachycardia associated to this missense variant

© Forensic Science International, 2017, vol. 270, p. 173-177

Elsevier

Author: Bosch Calero, Cristina
Campuzano Larrea, Oscar
Sarquella Brugada, Georgia
Cesar, Sergi
Pérez Serra, Alexandra
Coll, Monica
Mademont Soler, Irene
Matés Ramírez, Jesús
Olmo, Bernat del
Iglesias, Anna
Brugada Terradellas, Josep
Petersen, Volker
Brugada, Ramon
Date: 2017 January 1
Abstract: Catecholaminergic polymorphic ventricular tachycardia is a rare familial arrhythmogenic disease. It usually occurs in juvenile patients with a structurally normal heart and causes exercise–emotion triggered syncope and sudden cardiac death. The main gene associated with catecholaminergic polymorphic ventricular tachycardia is RyR2, encoding the cardiac ryanodine receptor protein which is involved in calcium homeostasis. After the identification of a 16 year-old man presenting with exercise-induced sudden cardiac death, clinically diagnosed as catecholaminergic polymorphic ventricular tachycardia, we collected the family information and performed a comprehensive genetic analysis using Next Generation Sequencing technology. The initial electrocardiogram in the emergency department revealed ventricular fibrillation. On electrocardiogram monitoring, sinus tachycardia degenerated into bidirectional ventricular and into ventricular fibrillation. Catecholaminergic polymorphic ventricular tachycardia was clinically diagnosed in 5 of the 14 family members evaluated. There were no additional reports of seizures, pregnancy loss, neonatal death, or sudden cardiac death in family members. Genetic analysis of the index case identified only one rare novel variant p.Ile11Ser (c.32T > G) in the RyR2 gene. Subsequent familial analysis identified segregation of the genetic variant with the disease. All current evidence supports that novel p.Ile11Ser variant in the RyR2 gene is a potential disease-causing variant in catecholaminergic polymorphic ventricular tachycardia. To our knowledge, there has been no previous case report of catecholaminergic polymorphic ventricular tachycardia associated to this missense variant
Format: application/pdf
Citation: https://doi.org/10.1016/j.forsciint.2016.12.001
ISSN: 0379-0738
Document access: http://hdl.handle.net/10256/14358
Language: eng
Publisher: Elsevier
Collection: Versió postprint del document publicat a: https://doi.org/10.1016/j.forsciint.2016.12.001
Articles publicats (D-CM)
Is part of: © Forensic Science International, 2017, vol. 270, p. 173-177
Rights: Tots els drets reservats
Subject: Cor -- Malalties
Heart -- Diseases
Cor -- Malalties -- Aspectes genètics
Heart -- Diseases -- Genetic aspects
Mort sobtada
Sudden death
Title: A novel variant in RyR2 causes familiar catecholaminergic polymorphic ventricular tachycardia
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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