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==Causes==
==Causes==
[[Cyanosis]] can be caused by the following mechanisms, systemic arterial oxygen desaturation and increased oxygen extraction by the tissues. Based on these mechanisms, Cyanosis can be either Central or Peripheral. Certain conditions present with bluish purple discoloration of skin or mucous membranes, can mimic cyanosis, are not associated with [[hypoxemia]] or peripheral vasoconstriction and is called Pseudocyanosis.
[[Cyanosis]] can be caused by the following mechanisms, systemic arterial oxygen desaturation and increased oxygen extraction by the tissues. Based on these mechanisms, Cyanosis can be either Central or Peripheral. Certain conditions present with bluish purple discoloration of skin or mucous membranes, can mimic cyanosis, are not associated with [[hypoxemia]] or peripheral vasoconstriction and is called Pseudocyanosis.
===Common Causes===
====Central Cyanosis:====
====Central Cyanosis:====
There following are some of the common causes of central cyanosis:<ref name="pmid1523025">{{cite journal |vauthors=DiMaio AM, Singh J |title=The infant with cyanosis in the emergency room |journal=Pediatr. Clin. North Am. |volume=39 |issue=5 |pages=987–1006 |date=October 1992 |pmid=1523025 |doi= |url= |author=}}</ref> <ref name="pmid2407997">{{cite journal |vauthors=Driscoll DJ |title=Evaluation of the cyanotic newborn |journal=Pediatr. Clin. North Am. |volume=37 |issue=1 |pages=1–23 |date=February 1990 |pmid=2407997 |doi= |url= |author=}}</ref> <ref name="pmid25604592">{{cite journal |vauthors=Frank DB, Hanna BD |title=Pulmonary arterial hypertension associated with congenital heart disease and Eisenmenger syndrome: current practice in pediatrics |journal=Minerva Pediatr. |volume=67 |issue=2 |pages=169–85 |date=April 2015 |pmid=25604592 |pmc=4382100 |doi= |url= |author=}}</ref> <ref name="pmid22482063">{{cite journal |vauthors=Izraelit A, Ten V, Krishnamurthy G, Ratner V |title=Neonatal cyanosis: diagnostic and management challenges |journal=ISRN Pediatr |volume=2011 |issue= |pages=175931 |date= 2011 |pmid=22482063 |pmc=3317242 |doi=10.5402/2011/175931 |url= |author=}}</ref> <ref name="pmid21462449">{{cite journal |vauthors=Serino G, Giacomazzi F |title=[Pulmonary arterial hypertension in adult patients with congenital heart disease] |language=Italian |journal=Pediatr Med Chir |volume=32 |issue=6 |pages=274–9 |date= 2010 |pmid=21462449 |doi= |url= |author=}}</ref> <ref name="pmid7073040">{{cite journal |vauthors=Curry S |title=Methemoglobinemia |journal=Ann Emerg Med |volume=11 |issue=4 |pages=214–21 |date=April 1982 |pmid=7073040 |doi= |url= |author=}}</ref> <ref name="pmid15342970">{{cite journal |vauthors=Ash-Bernal R, Wise R, Wright SM |title=Acquired methemoglobinemia: a retrospective series of 138 cases at 2 teaching hospitals |journal=Medicine (Baltimore) |volume=83 |issue=5 |pages=265–73 |date=September 2004 |pmid=15342970 |doi= |url= |author=}}</ref> <ref name="pmid28722923">{{cite journal |vauthors=Kondamudi NP, Dulebohn SC |title= |journal= |volume= |issue= |pages= |date= |pmid=28722923 |doi= |url= |author=}}</ref>


There following are some of the common causes of central cyanosis:<ref name="pmid1523025">{{cite journal |vauthors=DiMaio AM, Singh J |title=The infant with cyanosis in the emergency room |journal=Pediatr. Clin. North Am. |volume=39 |issue=5 |pages=987–1006 |date=October 1992 |pmid=1523025 |doi= |url= |author=}}</ref> <ref name="pmid2407997">{{cite journal |vauthors=Driscoll DJ |title=Evaluation of the cyanotic newborn |journal=Pediatr. Clin. North Am. |volume=37 |issue=1 |pages=1–23 |date=February 1990 |pmid=2407997 |doi= |url= |author=}}</ref> <ref name="pmid25604592">{{cite journal |vauthors=Frank DB, Hanna BD |title=Pulmonary arterial hypertension associated with congenital heart disease and Eisenmenger syndrome: current practice in pediatrics |journal=Minerva Pediatr. |volume=67 |issue=2 |pages=169–85 |date=April 2015 |pmid=25604592 |pmc=4382100 |doi= |url= |author=}}</ref> <ref name="pmid22482063">{{cite journal |vauthors=Izraelit A, Ten V, Krishnamurthy G, Ratner V |title=Neonatal cyanosis: diagnostic and management challenges |journal=ISRN Pediatr |volume=2011 |issue= |pages=175931 |date= 2011 |pmid=22482063 |pmc=3317242 |doi=10.5402/2011/175931 |url= |author=}}</ref> <ref name="pmid21462449">{{cite journal |vauthors=Serino G, Giacomazzi F |title=[Pulmonary arterial hypertension in adult patients with congenital heart disease] |language=Italian |journal=Pediatr Med Chir |volume=32 |issue=6 |pages=274–9 |date= 2010 |pmid=21462449 |doi= |url= |author=}}</ref> <ref name="pmid7073040">{{cite journal |vauthors=Curry S |title=Methemoglobinemia |journal=Ann Emerg Med |volume=11 |issue=4 |pages=214–21 |date=April 1982 |pmid=7073040 |doi= |url= |author=}}</ref> <ref name="pmid15342970">{{cite journal |vauthors=Ash-Bernal R, Wise R, Wright SM |title=Acquired methemoglobinemia: a retrospective series of 138 cases at 2 teaching hospitals |journal=Medicine (Baltimore) |volume=83 |issue=5 |pages=265–73 |date=September 2004 |pmid=15342970 |doi= |url= |author=}}</ref> <ref name="pmid28722923">{{cite journal |vauthors=Kondamudi NP, Dulebohn SC |title= |journal= |volume= |issue= |pages= |date= |pmid=28722923 |doi= |url= |author=}}</ref>
*'''Conditions associated with decreased concentration of inspired oxygen (FiO2):'''
*'''Conditions associated with decreased concentration of inspired oxygen (FiO2):'''
**[[Smoke inhalation]] most commonly from house fires
**[[Smoke inhalation]] most commonly from house fires

Revision as of 21:38, 21 February 2018


Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Chandrakala Yannam, MD [2]

Causes

Cyanosis can be caused by the following mechanisms, systemic arterial oxygen desaturation and increased oxygen extraction by the tissues. Based on these mechanisms, Cyanosis can be either Central or Peripheral. Certain conditions present with bluish purple discoloration of skin or mucous membranes, can mimic cyanosis, are not associated with hypoxemia or peripheral vasoconstriction and is called Pseudocyanosis.

Central Cyanosis:

There following are some of the common causes of central cyanosis:[1] [2] [3] [4] [5] [6] [7] [8]

Peripheral Cyanosis:

There following are some of the Common causes of Peripheral Cyanosis: [9] [10]

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.



  1. DiMaio AM, Singh J (October 1992). "The infant with cyanosis in the emergency room". Pediatr. Clin. North Am. 39 (5): 987–1006. PMID 1523025.
  2. Driscoll DJ (February 1990). "Evaluation of the cyanotic newborn". Pediatr. Clin. North Am. 37 (1): 1–23. PMID 2407997.
  3. Frank DB, Hanna BD (April 2015). "Pulmonary arterial hypertension associated with congenital heart disease and Eisenmenger syndrome: current practice in pediatrics". Minerva Pediatr. 67 (2): 169–85. PMC 4382100. PMID 25604592.
  4. Izraelit A, Ten V, Krishnamurthy G, Ratner V (2011). "Neonatal cyanosis: diagnostic and management challenges". ISRN Pediatr. 2011: 175931. doi:10.5402/2011/175931. PMC 3317242. PMID 22482063.
  5. Serino G, Giacomazzi F (2010). "[Pulmonary arterial hypertension in adult patients with congenital heart disease]". Pediatr Med Chir (in Italian). 32 (6): 274–9. PMID 21462449.
  6. Curry S (April 1982). "Methemoglobinemia". Ann Emerg Med. 11 (4): 214–21. PMID 7073040.
  7. Ash-Bernal R, Wise R, Wright SM (September 2004). "Acquired methemoglobinemia: a retrospective series of 138 cases at 2 teaching hospitals". Medicine (Baltimore). 83 (5): 265–73. PMID 15342970.
  8. Kondamudi NP, Dulebohn SC. PMID 28722923. Missing or empty |title= (help)
  9. Fardoun MM, Nassif J, Issa K, Baydoun E, Eid AH (2016). "Raynaud's Phenomenon: A Brief Review of the Underlying Mechanisms". Front Pharmacol. 7: 438. doi:10.3389/fphar.2016.00438. PMC 5110514. PMID 27899893.
  10. Das S, Maiti A (November 2013). "Acrocyanosis: an overview". Indian J Dermatol. 58 (6): 417–20. doi:10.4103/0019-5154.119946. PMC 3827510. PMID 24249890.