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__NOTOC__
__NOTOC__
{{Noonan syndrome}}
{{Noonan syndrome}}
{{CMG}}; {{AE}} Serge Korjian
{{CMG}}; {{AE}} [[User:Sergekorjian|Serge Korjian]], [[User:YazanDaaboul|Yazan Daaboul]]


==Overview==
==Overview==
The most important part of the patient history is a detailed family history of cardio-facial syndromes associated with short stature and developmental delays. Other important questions include history of bleeding tendency, feeding difficulty, and developmental delays.


==History and Symptoms==
==History and Symptoms==
''Patients with Noonan syndrome have different presentations due to the variable expression of the disorder, although certain findings on history are common in most cases:''<ref name="pmid22973420">{{cite journal| author=| title=Erratum. | journal=Therap Adv Gastroenterol | year= 2012 | volume= 5 | issue= 5 | pages= 371 | pmid=22973420 | doi=10.1177/1756283X10363751 | pmc=PMC3437532 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22973420 }} </ref><ref name="pmid3895929">{{cite journal| author=Mendez HM, Opitz JM| title=Noonan syndrome: a review. | journal=Am J Med Genet | year= 1985 | volume= 21 | issue= 3 | pages= 493-506 | pmid=3895929 | doi=10.1002/ajmg.1320210312 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3895929 }} </ref><ref name="doi10.1007/BF00441408">{{cite journal| author=Ranke MB,
Heidemann P, Knupfer C, Enders H, Schmaltz AA, Bierich JA| title=Noonan syndrome: growth and clinical manifestations in 144 cases| journal=Eur J Ped | year= 1988 | volume= 148 | issue= 3 | pages= 220-7 | pmid= | doi=10.1007/BF00441408 | pmc= | url=http://link.springer.com/article/10.1007/BF00441408 }} </ref><ref name="pmid23312968">{{cite journal| author=Roberts AE, Allanson JE, Tartaglia M, Gelb BD| title=Noonan syndrome. | journal=Lancet | year= 2013 | volume= 381 | issue= 9863 | pages= 333-42 | pmid=23312968 | doi=10.1016/S0140-6736(12)61023-X | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23312968 }} </ref>
* '''Family history''' is crucial in patients with suspicion of Noonan syndrome as the disease is transmitted by autosomal dominant inheritance. Family members with cardio-facial congenital disorders could aid in establishing the diagnosis.
* '''Feeding difficulty''' and '''failure to thrive''' is common in patients with Noonan syndrome especially in the first 15 months. Twenty five percent of patients have prolonged feeding time, recurrent vomiting, or poor suck and often require tube feeding.
* '''Bleeding diathesis''' and '''easy bruisability''' can be seen in 65% of patients.
* Some form of '''social, academic, or emotional impairment''' is usually present in approximately one third of patients.


==References==
==References==

Latest revision as of 02:17, 15 November 2013

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Serge Korjian, Yazan Daaboul

Overview

The most important part of the patient history is a detailed family history of cardio-facial syndromes associated with short stature and developmental delays. Other important questions include history of bleeding tendency, feeding difficulty, and developmental delays.

History and Symptoms

Patients with Noonan syndrome have different presentations due to the variable expression of the disorder, although certain findings on history are common in most cases:[1][2][3][4]

  • Family history is crucial in patients with suspicion of Noonan syndrome as the disease is transmitted by autosomal dominant inheritance. Family members with cardio-facial congenital disorders could aid in establishing the diagnosis.
  • Feeding difficulty and failure to thrive is common in patients with Noonan syndrome especially in the first 15 months. Twenty five percent of patients have prolonged feeding time, recurrent vomiting, or poor suck and often require tube feeding.
  • Bleeding diathesis and easy bruisability can be seen in 65% of patients.
  • Some form of social, academic, or emotional impairment is usually present in approximately one third of patients.

References

  1. "Erratum". Therap Adv Gastroenterol. 5 (5): 371. 2012. doi:10.1177/1756283X10363751. PMC 3437532. PMID 22973420.
  2. Mendez HM, Opitz JM (1985). "Noonan syndrome: a review". Am J Med Genet. 21 (3): 493–506. doi:10.1002/ajmg.1320210312. PMID 3895929.
  3. Ranke MB, Heidemann P, Knupfer C, Enders H, Schmaltz AA, Bierich JA (1988). "Noonan syndrome: growth and clinical manifestations in 144 cases". Eur J Ped. 148 (3): 220–7. doi:10.1007/BF00441408. line feed character in |author= at position 10 (help)
  4. Roberts AE, Allanson JE, Tartaglia M, Gelb BD (2013). "Noonan syndrome". Lancet. 381 (9863): 333–42. doi:10.1016/S0140-6736(12)61023-X. PMID 23312968.

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