86 Yogasundaram Yogasundaram H H Paterson Paterson ID ID Graham Graham M M Sergi Sergi C C Oudit Oudit GY GY Glycogen Storage Disease Because of a PRKAG2 Mutation Causing Severe Biventricular Hypertrophy and High-Grade Atrio-Ventricular Block Glycogen Storage Disease Because of a PRKAG2 Mutation Causing Severe Biventricular Hypertrophy and High-Grade Atrio-Ventricular Block Circ Heart Fail Circ Heart Fail 2016 2016 9 9 8 8 e003367 e003367 10.1161/CIRCHEARTFAILURE.116.003367 10.1161/CIRCHEARTFAILURE.116.003367 27496753 27496753. The gene discussed is PRKAG2; the disease is disorder of glycogen metabolism.