raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:45452

Idiopathic neonatal atrial flutter

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Infancy, Neonatal
Status
active

Idiopathic neonatal atrial flutter (AFL) is a rare rhythm disorder, characterized by sustained tachycardia in newborns and infants with an atrial rate often at around 440 beats/minute (range 340-580). AFL may manifest as asymptomatic tachycardia, congestive heart failure or hydrops.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIdiopathic neonatal atrial flutter
frFlutter auriculaire idiopathique du nouveau-né
deVorhofflattern, idiopathisches neonatales
esFlutter auricular neonatal idiopáticoAleteo atrial idiopático neonatal
itFlutter atriale idiopatico neonatale
nlIdiopathische neonatale atriumflutterIdiopathisch neonataal boezemfladderen
ptFlutter auricular neonatal idiopático
plIdiopatyczne niemowlęce trzepotanie przedsionków
csIdiopatický novorozenecký síňový flutter
ukІдіопатичне тріпотіння передсердь у новонароджених
zh特发性新生儿房扑
trYenidoğanın idiyopatik atriyal flutter

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10P29.1NTBTattributedvalidated
ICD-11BC81.20NTBTindexvalidated
MONDO0018684Evalidated
UMLSC4275090Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0001.5 / 100 000EuropeValue and classValidated[EXPERT]_23551862[PMID]
Prevalence at birth1-9 / 100 0002.1 / 100 000United KingdomValue and classValidated23551862[PMID]
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

15 annotations · validated 2021-01-14
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003115Abnormal EKG
HP:0005150Abnormal atrioventricular conduction
HP:0011675Arrhythmia
HP:0004755Supraventricular tachycardia
Frequent (79-30%)
HP:0025074Abnormal QRS complex
HP:0005162Abnormal left ventricular function
HP:0004763Paroxysmal supraventricular tachycardia
HP:0012664Reduced left ventricular ejection fraction
HP:0002789Tachypnea
Occasional (29-5%)
HP:0008872Feeding difficulties in infancy
HP:0025116Fetal distress
HP:0001789Hydrops fetalis
HP:0001520Large for gestational age
HP:0009800Maternal diabetes
HP:0002098Respiratory distress

Run the differential on the 4 obligate / very frequent terms

Annotation source: 29706767 [PMID]_263874[PMID]_9616850[PMID]_30511544[PMID]_32366806[PMID]

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Sources for this card