PMID- 29947763 OWN - NLM STAT- MEDLINE DCOM- 20190916 LR - 20190916 IS - 1532-2092 (Electronic) IS - 1099-5129 (Linking) VI - 20 IP - 12 DP - 2018 Dec 1 TI - A novel LMNA nonsense mutation causes two distinct phenotypes of cardiomyopathy with high risk of sudden cardiac death in a large five-generation family. PG - 2003-2013 LID - 10.1093/europace/euy127 [doi] AB - AIMS: Characterization of the cardiac phenotype associated with the novel LMNA nonsense mutation c.544C>T, p.Q182*, which we have identified in a large five-generation family. METHODS AND RESULTS: A family tree was constructed. Clinical data [arrhythmia, syncope, sudden cardiac death (SCD), New York Heart Association (NYHA) class] were collected from living and deceased family members. DNA of 23 living family members was analysed for mutations in LMNA. Additionally, dilated cardiomyopathy multi-gene-panel testing and whole exome sequencing were performed in some family members to identify potential phenotype-modifiers. In this five-generation family (n = 65), 17 SCDs occurred at 49.3 +/- 10.0 years. Furthermore, we identified eight additional mutation-carriers, seven symptomatic (44 +/- 13 years), and one asymptomatic (44 years). First signs of disease [sinus bradycardia with atrioventricular (AV)-block I degrees ] occurred at 36.5 +/- 8.1 years. Paroxysmal atrial fibrillation (AF) (onset at 41.8 +/- 5.7 years) rapidly progressed to permanent AF (46.2 +/- 9.8 years). Subsequently, AV-conduction worsened, syncope, pacemaker-dependence, and non-sustained ventricular tachycardia (43.3 +/- 8.2 years) followed. Ventricular arrhythmia caused SCD in patients without implantable cardioverter-defibrillator (ICD). Patients protected by ICD developed rapidly progressive heart failure (45.2 +/- 10.6 years). A different phenotype was seen in a sub-family in three patients with early onset of rapidly decompensating heart failure and only minor prior arrhythmia-related symptoms. One patient received high-urgency heart transplantation (HTX) at 32 years, while two died prior to HTX. One of them developed lethal peripartum-associated heart failure. Possible disease-modifiers were identified in this 'heart failure sub-family'. CONCLUSION: The novel LMNA nonsense mutation c.544C>T causes a severe arrhythmogenic phenotype manifesting with high incidence of SCD in most patients; and in one sub-family, a distinct phenotype with fast progressing heart failure, indicating the need for early consideration of ICD-implantation and listing for heart-transplantation. FAU - Glocklhofer, Christina R AU - Glocklhofer CR AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Steinfurt, Johannes AU - Steinfurt J AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Franke, Gerlind AU - Franke G AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Hoppmann, Anselm AU - Hoppmann A AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. AD - Institute of Genetic Epidemiology, Medical Center University of Freiburg, Freiburg, Germany. AD - Genetics and Experimental Bioinformatics, Faculty of Biology, University of Freiburg, Freiburg, Germany. FAU - Glantschnig, Theresa AU - Glantschnig T AD - Division of Cardiology, Medical University of Graz, Graz, Austria. FAU - Perez-Feliz, Stefanie AU - Perez-Feliz S AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Alter, Svenja AU - Alter S AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. AD - Institute of Human Genetics, Medical Center University of Freiburg, Freiburg, Germany. FAU - Fischer, Judith AU - Fischer J AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. AD - Institute of Human Genetics, Medical Center University of Freiburg, Freiburg, Germany. FAU - Brunner, Michael AU - Brunner M AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Rainer, Peter P AU - Rainer PP AD - Division of Cardiology, Medical University of Graz, Graz, Austria. FAU - Kottgen, Anna AU - Kottgen A AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. AD - Institute of Genetic Epidemiology, Medical Center University of Freiburg, Freiburg, Germany. FAU - Bode, Christoph AU - Bode C AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. FAU - Odening, Katja E AU - Odening KE AD - Department of Cardiology and Angiology I, Heart Center University of Freiburg, Hugstetter Str. 55, Freiburg, Germany. AD - Faculty of Medicine, University of Freiburg, Freiburg, Germany. LA - eng PT - Journal Article PL - England TA - Europace JT - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology JID - 100883649 RN - 0 (Codon, Nonsense) RN - 0 (LMNA protein, human) RN - 0 (Lamin Type A) RN - Familial dilated cardiomyopathy SB - IM MH - Adult MH - Arrhythmias, Cardiac/*genetics/mortality/physiopathology/therapy MH - Cardiomyopathy, Dilated/*genetics/mortality/physiopathology/therapy MH - *Codon, Nonsense MH - Death, Sudden, Cardiac/*etiology/prevention & control MH - Defibrillators, Implantable MH - Disease Progression MH - Electric Countershock/instrumentation MH - Female MH - Genetic Predisposition to Disease MH - Heart Transplantation MH - Heredity MH - Humans MH - Lamin Type A/*genetics MH - Male MH - Middle Aged MH - Pedigree MH - Phenotype MH - Prognosis MH - Risk Factors MH - Severity of Illness Index EDAT- 2018/06/28 06:00 MHDA- 2019/09/17 06:00 CRDT- 2018/06/28 06:00 PHST- 2018/02/09 00:00 [received] PHST- 2018/05/09 00:00 [accepted] PHST- 2018/06/28 06:00 [pubmed] PHST- 2019/09/17 06:00 [medline] PHST- 2018/06/28 06:00 [entrez] AID - 5045549 [pii] AID - 10.1093/europace/euy127 [doi] PST - ppublish SO - Europace. 2018 Dec 1;20(12):2003-2013. doi: 10.1093/europace/euy127.