Term Name:	Lodder-Merla syndrome type 1 with impaired intellectual development and cardiac arrhythmia
Synonyms:	GNB5-related intellectual disability-cardiac arrhythmia syndrome, intellectual developmental disorder with cardiac arrhythmia
Definition:	A syndrome that is characterized by delayed psychomotor development, severe intellectual disability with poor or absent speech, and bradycardia and/or cardiac sinus arrhythmias and that has_material_basis_in homozygous or compound heterozygous mutation in the GNB5 gene on chromosome 15q21.
Ontology:	Human Disease [DOID:0081008]   ( DOID:0081008 )