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Molecular assay reagents intended to identify gene variants associated with Romano-Ward syndrome, a heritable form of long QT syndrome. Long QT syndromes are characterized by episodic syncope (i.e., fainting) and a prolonged QT interval on electrocardiogram. Genetic variants at multiple loci have been associated with Romano-Ward syndrome. These reagents are intended to detect various types of genetic changes (e.g., deletions, duplications, insertions, single nucleotide polymorphisms) in multiple Romano-Ward syndrome-associated loci simultaneously.
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