Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality

Objectives: This study aimed to diversify the spectrum of PRKAG2 variants and explore its clinical features in a Chinese Han population with hypertrophic cardiomyopathy (HCM). Methods: Whole-exome sequencing was performed on 200 patients diagnosed with HCM, and four causative PRKAG2 variants were id...

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Autors principals: Xue-Jie Li, Nian-Wei Zhou, Hui-Lin Xie, Wen Liu, Cui-Zhen Pan, Xian-Hong Shu
Format: Article
Idioma:English
Publicat: Wolters Kluwer Health/LWW 2021-01-01
Col·lecció:Cardiology Plus
Matèries:
Accés en línia:http://www.cardiologyplus.org/article.asp?issn=2470-7511;year=2021;volume=6;issue=2;spage=132;epage=140;aulast=Li
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author Xue-Jie Li
Nian-Wei Zhou
Hui-Lin Xie
Wen Liu
Cui-Zhen Pan
Xian-Hong Shu
author_facet Xue-Jie Li
Nian-Wei Zhou
Hui-Lin Xie
Wen Liu
Cui-Zhen Pan
Xian-Hong Shu
author_sort Xue-Jie Li
collection DOAJ
description Objectives: This study aimed to diversify the spectrum of PRKAG2 variants and explore its clinical features in a Chinese Han population with hypertrophic cardiomyopathy (HCM). Methods: Whole-exome sequencing was performed on 200 patients diagnosed with HCM, and four causative PRKAG2 variants were identified in the probands and their relatives using Sanger sequencing. Their clinical manifestations, laboratory examinations, therapeutic methods, and outcomes were documented and analyzed. Results: Four variants were identified in six probands and seven of their relatives. Left ventricular hypertrophy was present in all probands. Five probands had sinus bradycardia, three had implanted pacemakers (PM), one developed heart failure, two had ventricular preexcitation, and one had atrial fibrillation. Conclusions: PRKAG2 cardiac syndrome (PCS) is a rare autosomal dominant disease characterized by ventricular hypertrophy, preexcitation, and progressive conduction defects, resulting in a high incidence of PM implantation. Genetic testing provides robust information for distinguishing PCS from sarcomeric HCM, which will be beneficial in guiding therapy and improving prognosis.
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spelling doaj.art-3dc5f89ce25e4fb486a3bd67b51f23f12022-12-22T04:33:58ZengWolters Kluwer Health/LWWCardiology Plus2470-75112470-752X2021-01-016213214010.4103/2470-7511.320319Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationalityXue-Jie LiNian-Wei ZhouHui-Lin XieWen LiuCui-Zhen PanXian-Hong ShuObjectives: This study aimed to diversify the spectrum of PRKAG2 variants and explore its clinical features in a Chinese Han population with hypertrophic cardiomyopathy (HCM). Methods: Whole-exome sequencing was performed on 200 patients diagnosed with HCM, and four causative PRKAG2 variants were identified in the probands and their relatives using Sanger sequencing. Their clinical manifestations, laboratory examinations, therapeutic methods, and outcomes were documented and analyzed. Results: Four variants were identified in six probands and seven of their relatives. Left ventricular hypertrophy was present in all probands. Five probands had sinus bradycardia, three had implanted pacemakers (PM), one developed heart failure, two had ventricular preexcitation, and one had atrial fibrillation. Conclusions: PRKAG2 cardiac syndrome (PCS) is a rare autosomal dominant disease characterized by ventricular hypertrophy, preexcitation, and progressive conduction defects, resulting in a high incidence of PM implantation. Genetic testing provides robust information for distinguishing PCS from sarcomeric HCM, which will be beneficial in guiding therapy and improving prognosis.http://www.cardiologyplus.org/article.asp?issn=2470-7511;year=2021;volume=6;issue=2;spage=132;epage=140;aulast=Lihypertrophic cardiomyopathy; prkag2 protein; whole-exome sequencing
spellingShingle Xue-Jie Li
Nian-Wei Zhou
Hui-Lin Xie
Wen Liu
Cui-Zhen Pan
Xian-Hong Shu
Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
Cardiology Plus
hypertrophic cardiomyopathy; prkag2 protein; whole-exome sequencing
title Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
title_full Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
title_fullStr Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
title_full_unstemmed Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
title_short Differential diagnosis of PRKAG2 Cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
title_sort differential diagnosis of prkag2 cardiac syndrome in hypertrophic cardiomyopathy patients of han nationality
topic hypertrophic cardiomyopathy; prkag2 protein; whole-exome sequencing
url http://www.cardiologyplus.org/article.asp?issn=2470-7511;year=2021;volume=6;issue=2;spage=132;epage=140;aulast=Li
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