Haddad syndrome
MeSH: C536209ORPHA: 99803
Overview
Haddad syndrome is a rare congenital disorder in which congenital central hypoventilation syndrome (CCHS), or Ondine syndrome, occurs concurrently with Hirschsprung disease (see these terms)
Available Treatments (0)
No treatments linked yet
Clinical trials or compassionate use may be available — consult a specialist.
Clinical Presentation
Signs and symptoms associated with Haddad syndrome, sourced from HPO and Orphanet clinical annotations.
StrabismusFailure to thriveSmall for gestational ageAganglionic megacolonBreathing dysregulationCentral hypoventilationCentral sleep apneaAbnormal autonomic nervous system physiologyIntellectual disabilitySeizureHypotoniaGastroesophageal refluxSensorineural hearing impairmentDecreased fetal movementPolyhydramniosOligohydramniosGanglioneuromaNeuroblastoma
Classification & Codes
MeSH Code
C536209Orphanet Code
ORPHA:99803Haddad syndrome
| MeSH | C536209 |
| Orphanet | ORPHA:99803 |
| Treatments | 0 drug(s) |
| Symptoms on record | 18 signs |
| Status | published |
Factual Authority
Last Updated3/20/2026
Clinical DataHPO · Orphanet
Drug DataFDA · EMA · CDSCO