New frameshift mutation found in PKP2 gene in arhythmogenic right ventricular cardiomyopathy/dysplasia: a family case study

Mikhail A. Fedyakov; Olga E. Veleslavova; Olga V. Romanova; Yuriy V. Shubik; Stanislav P. Urazov; Sergey D. Rud; Andrey M. Sarana; Sergey G. Scherbak; Oleg S. Glotov

doi:10.21638/11701/spbu10.2019.101

Authors

Mikhail A. Fedyakov St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation
Olga E. Veleslavova St. Saint-Petersburg State University, University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
Olga V. Romanova St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation
Yuriy V. Shubik St. Saint-Petersburg State University, University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
Stanislav P. Urazov St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation
Sergey D. Rud S. M. Kirov Military Medical Academy, 6, ul. Academika Lebedeva, St. Petersburg, 194044, Russian Federation
Andrey M. Sarana St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation;St. Saint-Petersburg State University, University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
Sergey G. Scherbak St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation ; St. Saint-Petersburg State University, University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
Oleg S. Glotov St. Petersburg State Health Care Facility “City Hospital no. 40”, 9, ul. Borisova, St. Petersburg, Sestroretsk, 197706, Russian Federation ; St. Saint-Petersburg State University, University, 7–9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation;Laboratory of Prenatal Diagnosis, FSBSI “The Research Institute of Obstetrics, Gynecology and Reproductology named after D. O. Ott”, 3, Mendeleevskaya liniya, 3, St. Petersburg, 199034, Russian Federation

DOI:

https://doi.org/10.21638/11701/spbu10.2019.101

Abstract

Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC) is a progressive myocardial disease that primarily affects the right ventricle. It develops predominantly at young age, and the first symptom is often sudden cardiac death (SCD) associated with malignant ventricular arrhythmia. Diagnosis using standard cardiac assessment may be hampered due to slight and nonspecific clinical signs at early stage of the disease, particularly in relatives of the patient. Molecular genetic testing can provide more information for clinical decision making. Here we report a patient with a clinical diagnosis of ARVC who was found to have a new frame shift mutation in the PKP2 gene through molecular genetic testing using Next Generation Sequencing methods. Subsequent family assessment showed that all three of the proband’s children also carried this mutation. The results of molecular diagnostics allowed us to assess the risk of developing ARVC and SCD in relatives of the proband, as well as to set up individual cardiac assessment protocols. Results obtained emphasize the importance of family screening when a pathogenic mutation is detected in the primary patient, and demonstrate the efficiency of genetic testing in cardiological practice.

Keywords:

arrhythmogenic right ventricular cardiomyopathy/dysplasia, sudden cardiac death, Next Generation Sequencing, new frame shift mutation, PKP2 gene, Russian family

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