obsolete_Jervell and Lange-Nielsen syndrome true Surdo Cardiac Syndrome Cardioauditory Syndrome of Jervell and Lange Nielsen Jervell and Lange-Nielsen Syndrome Jervell Lange Nielsen Syndrome 2.32 true Cardioauditory Syndrome of Jervell and Lange-Nielsen use 'http://www.orpha.net/ORDO/Orphanet_90647' instead. New Label : Jervell and Lange-Nielsen syndrome Deafness, Congenital, and Functional Heart Disease http://purl.bioontology.org/ontology/MSH/D029593 Surdo-Cardiac Syndromes Jervell and Lange Nielsen Syndrome Surdo-Cardiac Syndrome http://www.orpha.net/ORDO/Orphanet_90647 Syndrome, Surdo-Cardiac Syndrome, Jervell-Lange Nielsen Prolonged QT Interval in EKG and Sudden Death JLNS A form of long QT syndrome that is associated with congenital deafness. It is characterized by abnormal cardioelectrophysiology involving the VOLTAGE-GATED POTASSIUM CHANNEL. It results from mutation of KCNQ1 gene (Subtype 1 or JLN1) or the KCNE1 gene (Subtype 2 or JLN2).