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QUAD #22: What is CHARGE syndrome? with Dr. Catherine Hart

Video Published 2024-11-26 Updated 2026-08-01

Timestops (3)

0:00
The acronym stands for coloboma
The acronym stands for coloboma, heart defects, atresia of the coina, retardation of growth and development, genital and…
0:28
It's the C's coloboma
It's the C's coloboma, quanal atresia, or cleft palate, characteristic ear abnormalities, and cranial nerve abnormalitie…
0:55
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Topic Overview

A brief educational segment defining CHARGE syndrome, a congenital disorder whose acronym stands for coloboma, heart defects, choanal atresia, retardation of growth and development, genital/urinary anomalies, and ear malformations. The discussants explain that while CHARGE is caused by CHD7 mutation on chromosome 8, clinical diagnosis is possible without genetic confirmation. Diagnostic criteria require either three major plus one minor feature, or two major plus two minor features; major criteria include coloboma, choanal atresia or cleft palate, characteristic ear abnormalities, and cranial nerve abnormalities.

Key Takeaways

  • CHARGE syndrome is caused by CHD7 mutation on chromosome 8, but some patients test negative and require clinical diagnosis. (0:11)
  • Clinical diagnosis requires 3 major + 1 minor feature, or 2 major + 2 minor features, even without genetic confirmation. (0:24)
  • Four major criteria: coloboma, choanal atresia/cleft palate, characteristic ear abnormalities, cranial nerve abnormalities. (0:28)

Inside this episode

Kai, the Library's AI content creator, listened to this episode and mapped who's speaking, the chapters, key claims, and cases. Every item links to the exact moment in the recording.

AI-enriched

Who's speaking

  • Speaker 1 — guest
  • Dr. Catherine Hart — guest
  • Speaker 3 — host

Chapters

  • 0:00CHARGE Syndrome Definition and Diagnostic Criteria — Overview of CHARGE syndrome acronym, genetic basis via CHD7 mutation, and clinical diagnostic criteria requiring combinations of major and minor features.

Key claims

  • 0:00CHARGE acronym stands for coloboma, heart defects, atresia of the choana, retardation of growth and development, genital and/or urinary anomalies, and ear malformations — Speaker 1
  • 0:11CHARGE syndrome is caused by a CHD7 mutation on chromosome 8 — Dr. Catherine Hart
  • 0:11A population of children with CHARGE syndrome will have a negative test for CHD7 — Dr. Catherine Hart
  • 0:20CHARGE syndrome can be diagnosed based on clinical criteria even without CHD7 mutation — Dr. Catherine Hart
  • 0:24Diagnosis requires at least two major criteria — Speaker 1
  • 0:28Major criteria are coloboma, choanal atresia or cleft palate, characteristic ear abnormalities, and cranial nerve abnormalities — Speaker 1
  • 0:41Definitive clinical diagnosis requires either 3 major features and at least 1 minor feature, or 2 major features and 2 minor features, or CHD7 mutation — Dr. Catherine Hart
This episode was analyzed and enriched by Kai, the Library's AI content creator. Every item links to the moment it comes from — click a timestamp to listen in context.

CHARGE Syndrome: Clinical Diagnosis When Genetic Testing Is Negative

The essential version of this episode — what it covers, the points that matter most, and what it changes for you. Written by Kai from the episode transcript and reviewed before publishing.

For specialists · Core brief · AI-written, human-reviewed

Genetic basis and diagnostic reality

CHARGE syndrome results from a CHD7 mutation on chromosome 8 0:11. However, a substantial proportion of affected children test negative for CHD7 0:11, making clinical diagnostic criteria essential 0:20.

Diagnostic criteria

The acronym stands for coloboma, heart defects, atresia of the choanae, retardation of growth and development, genital and/or urinary anomalies, and ear malformations 0:00. The major criteria are coloboma, choanal atresia or cleft palate, characteristic ear abnormalities, and cranial nerve abnormalities 0:28.

Definitive clinical diagnosis requires one of three patterns: three major features plus at least one minor feature, two major features plus two minor features, or confirmed CHD7 mutation 0:41. At minimum, two major criteria must be present 0:24.

Clinical implication

CHARGE can be diagnosed on phenotype alone when genetic testing is uninformative 0:20. The clinical criteria exist precisely because CHD7 testing misses a meaningful subset of cases 0:11. When you see the constellation — particularly the major features — the diagnosis stands independent of molecular confirmation.

Takeaways from this story

  • CHD7 testing misses a substantial proportion of CHARGE cases; clinical criteria are diagnostic, not provisional.
  • Definitive diagnosis requires 3 major + 1 minor, or 2 major + 2 minor features, or CHD7 mutation.
  • Major criteria: coloboma, choanal atresia/cleft palate, characteristic ear abnormalities, cranial nerve abnormalities.

Keywords

CHARGE syndrome coloboma heart defects choanal atresia cleft palate growth retardation developmental retardation genital anomalies urinary anomalies ear malformations cranial nerve abnormalities

Hashtags

#chargesyndrome #chd7 #geneticdisorder #cincinnatichildrens #rare disease #globalcastmd #pediatricsurgery #PediatricENT #AerodigestiveMedicine #CongenitalAnomalies #PediatricGenetics

Transcript

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