FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

long QT syndrome

ID (Ontology)

DOID:2843 (Human Disease)

Definition

An autosomal genetic disease that is characterized by delayed repolarization of the heart following a heartbeat increases the risk of episodes of torsade de pointes (TDP, a form of irregular heartbeat that originates from the ventricles).

Also Known As

"long Q-T syndrome" ; "LQT"

Comment

Links to External Ontologies

DO.org

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	HUMAN_DISEASE_INTERACTIONS
Human Disease Models (FBhh)	DOID	1 (maintenance)

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Genes	Human Disease Models
long QT syndrome
model of \| long QT syndrome		--	--

Spanning Tree (Parents/Children)

  cardiomyopathy
   |__intrinsic cardiomyopathy
       |__long QT syndrome  23 rec.
           |__Andersen-Tawil syndrome 1 rec.
           |__Jervell-Lange Nielsen syndrome 1 rec.
           |__long QT syndrome 1 2 rec.
           |__long QT syndrome 2 3 rec.
           |__long QT syndrome 3 2 rec.
           |__long QT syndrome 4
           |__long QT syndrome 5
           |__long QT syndrome 6
           |__long QT syndrome 8 1 rec.
           |__long QT syndrome 9
           |__long QT syndrome 10
           |__long QT syndrome 11 1 rec.
           |__long QT syndrome 12 1 rec.
           |__long QT syndrome 13 2 rec.
           |__long QT syndrome 14 8 rec.
           |__long QT syndrome 15 8 rec.
           |__long QT syndrome 16 8 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	intrinsic cardiomyopathy
Part of
Synonyms & Secondary IDs
Synonyms
	"long Q-T syndrome" EXACT "LQT" EXACT OMO:0003012 "Romano-Ward syndrome" NARROW
Secondary IDs

External Crossreferences & Linkouts
	GARD:6922 ICD10CM:I45.81 ICD9CM:426.82 MESH:D008133 MIM:PS192500 NCI:C34786 ORDO:768 SNOMEDCT_US_2025_09_01:9651007 UMLS_CUI:C0023976