Clinical presentation of calmodulin mutations : the International Calmodulinopathy Registry

© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology..

AIMS: Calmodulinopathy due to mutations in any of the three CALM genes (CALM1-3) causes life-threatening arrhythmia syndromes, especially in young individuals. The International Calmodulinopathy Registry (ICalmR) aims to define and link the increasing complexity of the clinical presentation to the underlying molecular mechanisms.

METHODS AND RESULTS: The ICalmR is an international, collaborative, observational study, assembling and analysing clinical and genetic data on CALM-positive patients. The ICalmR has enrolled 140 subjects (median age 10.8 years [interquartile range 5-19]), 97 index cases and 43 family members. CALM-LQTS and CALM-CPVT are the prevalent phenotypes. Primary neurological manifestations, unrelated to post-anoxic sequelae, manifested in 20 patients. Calmodulinopathy remains associated with a high arrhythmic event rate (symptomatic patients, n = 103, 74%). However, compared with the original 2019 cohort, there was a reduced frequency and severity of all cardiac events (61% vs. 85%; P = .001) and sudden death (9% vs. 27%; P = .008). Data on therapy do not allow definitive recommendations. Cardiac structural abnormalities, either cardiomyopathy or congenital heart defects, are present in 30% of patients, mainly CALM-LQTS, and lethal cases of heart failure have occurred. The number of familial cases and of families with strikingly different phenotypes is increasing.

CONCLUSION: Calmodulinopathy has pleiotropic presentations, from channelopathy to syndromic forms. Clinical severity ranges from the early onset of life-threatening arrhythmias to the absence of symptoms, and the percentage of milder and familial forms is increasing. There are no hard data to guide therapy, and current management includes pharmacological and surgical antiadrenergic interventions with sodium channel blockers often accompanied by an implantable cardioverter-defibrillator.

Errataetall:

CommentIn: Eur Heart J. 2023 Aug 12;:. - PMID 37571968

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:44

Enthalten in:

European heart journal - 44(2023), 35 vom: 14. Sept., Seite 3357-3370

Sprache:

Englisch

Beteiligte Personen:

Crotti, Lia [VerfasserIn]
Spazzolini, Carla [VerfasserIn]
Nyegaard, Mette [VerfasserIn]
Overgaard, Michael T [VerfasserIn]
Kotta, Maria-Christina [VerfasserIn]
Dagradi, Federica [VerfasserIn]
Sala, Luca [VerfasserIn]
Aiba, Takeshi [VerfasserIn]
Ayers, Mark D [VerfasserIn]
Baban, Anwar [VerfasserIn]
Barc, Julien [VerfasserIn]
Beach, Cheyenne M [VerfasserIn]
Behr, Elijah R [VerfasserIn]
Bos, J Martijn [VerfasserIn]
Cerrone, Marina [VerfasserIn]
Covi, Peter [VerfasserIn]
Cuneo, Bettina [VerfasserIn]
Denjoy, Isabelle [VerfasserIn]
Donner, Birgit [VerfasserIn]
Elbert, Adrienne [VerfasserIn]
Eliasson, Håkan [VerfasserIn]
Etheridge, Susan P [VerfasserIn]
Fukuyama, Megumi [VerfasserIn]
Girolami, Francesca [VerfasserIn]
Hamilton, Robert [VerfasserIn]
Horie, Minoru [VerfasserIn]
Iascone, Maria [VerfasserIn]
Jiménez-Jaimez, Juan [VerfasserIn]
Jensen, Henrik Kjærulf [VerfasserIn]
Kannankeril, Prince J [VerfasserIn]
Kaski, Juan P [VerfasserIn]
Makita, Naomasa [VerfasserIn]
Muñoz-Esparza, Carmen [VerfasserIn]
Odland, Hans H [VerfasserIn]
Ohno, Seiko [VerfasserIn]
Papagiannis, John [VerfasserIn]
Porretta, Alessandra Pia [VerfasserIn]
Prandstetter, Christopher [VerfasserIn]
Probst, Vincent [VerfasserIn]
Robyns, Tomas [VerfasserIn]
Rosenthal, Eric [VerfasserIn]
Rosés-Noguer, Ferran [VerfasserIn]
Sekarski, Nicole [VerfasserIn]
Singh, Anoop [VerfasserIn]
Spentzou, Georgia [VerfasserIn]
Stute, Fridrike [VerfasserIn]
Tfelt-Hansen, Jacob [VerfasserIn]
Till, Jan [VerfasserIn]
Tobert, Kathryn E [VerfasserIn]
Vinocur, Jeffrey M [VerfasserIn]
Webster, Gregory [VerfasserIn]
Wilde, Arthur A M [VerfasserIn]
Wolf, Cordula M [VerfasserIn]
Ackerman, Michael J [VerfasserIn]
Schwartz, Peter J [VerfasserIn]

Links:

Volltext

Themen:

Calmodulin
Cardiomyopathies
Catecholaminergic polymorphic ventricular tachycardia
Idiopathic ventricular fibrillation
Journal Article
Long QT syndrome
Neurological disorders
Observational Study
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Sudden death

Anmerkungen:

Date Completed 15.09.2023

Date Revised 07.02.2024

published: Print

CommentIn: Eur Heart J. 2023 Aug 12;:. - PMID 37571968

Citation Status MEDLINE

doi:

10.1093/eurheartj/ehad418

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM360284248