IVIC syndrome
Other namesInstituto Venezolano de Investigaciónes Científicas syndrome, Radial ray defects, hearing impairment, external ophthalmoplegia, and thrombocytopenia, oculootoradial syndrome, OORS.[1]
SpecialtyMedical genetics
SymptomsRadial ray defects, motor disturbances, and bilateral congenital hearing loss
Usual onsetBirth
DurationLife-long
CausesGenetic mutation
Risk factorsHaving a parent with the condition
Diagnostic methodPhysical evaluation, radiographies, and genetic testing
Preventionnone
PrognosisGood
FrequencyVery rare, only 3 families with the disorder have been described in medical literature

IVIC syndrome, also known as Instituto Venezolano de Investigaciónes Científicas syndrome or oculo-oto-radial syndrome is a very rare autosomal dominant limb malformation genetic disorder that is characterized by upper limb and ocular abnormalities and congenital hearing loss on both ears.[2][3]

Presentation

People with this disorder often have the following symptoms:[4]

Etymology

This disorder was first discovered in 1980 by Arias et al., when he described a Venezuelan family of Caucasian descent where 19 of its members exhibited the symptoms mentioned above. When the family tree was revised, it was found that the family's ancestors emigrated from the Canary Islands to Venezuela 140 years before, more specifically somewhere in the 1800s, the mutation causing the disorder seemed to have come into existence in a member belonging to the 6th generation of the family. Afterwards, two more affected families were reported in medical literature, one from Italy[5][6] and the other from Turkey.[7]

This disorder is named after the institute where Arias et al. (whose real name was Sergio Arias Cazorla) worked as a geneticist; the Instituto Venezolano de Investigaciónes Científicas (English: Venezuelan Institute for Scientific Research), Arias was also a zoology professor at the Escuela de Capacitación Forestal de El Junquito (English: Forest Capacitation School El Junquito) from 1952 to 1953, then from 1970 to 1975 he was a biology professor at the Universidad Simón Bolívar (English: Simón Bolívar University), then from 1975 to 1996 he was a human genetics professor (presumably at the same university)[8]

It was later discovered in 2007 by Arias and Paradisi et al. through the original Venezuelan family with IVIC syndrome that the cause of the disorder is an autosomal dominant genetic mutation in the SALL4 gene, in chromosome 20.[9][10][11]

References

  1. ↑ "IVIC syndrome". 16 June 2022.
  2. ↑ RESERVED, INSERM US14-- ALL RIGHTS. "Orphanet: IVIC syndrome". www.orpha.net. Retrieved 2022-05-15.{{cite web}}: CS1 maint: numeric names: authors list (link)
  3. ↑ "IVIC syndrome - About the Disease - Genetic and Rare Diseases Information Center". rarediseases.info.nih.gov. Retrieved 2022-05-15.
  4. ↑ Bissonnette, Bruno; Luginbuehl, Igor; Marciniak, Bruno; Dalens, Bernard J. (2006), "IVIC Syndrome", Syndromes: Rapid Recognition and Perioperative Implications, New York, NY: The McGraw-Hill Companies, retrieved 2022-05-15
  5. ↑ Arias, S.; Penchaszadeh, V. B.; Pinto-Cisternas, J.; Larrauri, S. (1980). "The IVIC syndrome: a new autosomal dominant complex pleiotropic syndrome with radial ray hypoplasia, hearing impairment, external ophthalmoplegia, and thrombocytopenia". American Journal of Medical Genetics. 6 (1): 25–59. doi:10.1002/ajmg.1320060105. ISSN 0148-7299. PMID 7395922.
  6. ↑ Sammito, V.; Motta, D.; Capodieci, G.; Sanfilippo, S.; Neri, G. (April 1988). "IVIC syndrome: report of a second family". American Journal of Medical Genetics. 29 (4): 875–881. doi:10.1002/ajmg.1320290419. ISSN 0148-7299. PMID 3400733.
  7. ↑ Elçioğlu, N.; Berry, A. C. (1997). "Monozygotic twins discordant for the oculo-oto-radial syndrome (IVIC syndrome)". Genetic Counseling (Geneva, Switzerland). 8 (3): 201–206. ISSN 1015-8146. PMID 9327262.
  8. ↑ Bissonnette, Bruno; Luginbuehl, Igor; Engelhardt, Thomas (2019), "IVIC Syndrome", Syndromes: Rapid Recognition and Perioperative Implications (2 ed.), New York, NY: McGraw-Hill Education, retrieved 2022-05-15
  9. ↑ "OMIM Entry - # 147750 - IVIC SYNDROME; IVIC". www.omim.org. Retrieved 2022-05-15.
  10. ↑ Paradisi, Irene; Arias, Sergio (2007-02-15). "IVIC syndrome is caused by a c.2607delA mutation in the SALL4 locus". American Journal of Medical Genetics. Part A. 143 (4): 326–332. doi:10.1002/ajmg.a.31603. ISSN 1552-4825. PMID 17256792. S2CID 22880350.
  11. ↑ www.malacards.org https://www.malacards.org/card/ivic_syndrome. Retrieved 2022-05-15. {{cite web}}: Missing or empty |title= (help)
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