The most common cause of neonate cyanosis? - USMLE Forums
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Old 10-05-2012
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Heart The most common cause of neonate cyanosis?

the most common cause of cyanosis in first few weeks of life is
a) TGV
B) TOF
C) TAPVR
D) Tricuspid atresia
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Old 10-05-2012
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Default B

TOF...............................
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Old 10-05-2012
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answer is a) TGV: usually cyanosis at birth. While TOF cyanosis at 3 months.
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Old 10-05-2012
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yah i also read the same thing:
1)cyanosis at birth is TGF
2)CYANOSIS later in life is TOF
BUT ANSWER IS TOF?????
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Old 10-05-2012
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Quote:
Originally Posted by rupesh View Post
the most common cause of cyanosis in first few weeks of life is
a) TGV
B) TOF
C) TAPVR
D) Tricuspid atresia
B. TOF its MCC of cynosis
others can cause cyanosis to but i think not as common as TOF.
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Old 10-05-2012
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Quote:
Originally Posted by koolkiller88 View Post
B. TOF its MCC of cynosis
others can cause cyanosis to but i think not as common as TOF.
I agree.. I think it's cause TOF is the commonest acyanotic congenital heart disease.
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Old 10-05-2012
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i remember reading it somewhere mostly from uworld--that only TOF and TGV are the only congenital heart diseases with early cyanosis------although both can be presented it is TOF most common one.....so TOF the better choice
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Quote:
Originally Posted by venky2600 View Post
i remember reading it somewhere mostly from uworld--that only TOF and TGV are the only congenital heart diseases with early cyanosis------although both can be presented it is TOF most common one.....so TOF the better choice
all the 5 congenital heart defects that starts with "T" cause early cyanosis but TOF is most common of all. TGV is not compatible with life due to severe hypoxia at birth unless it coexist with other anomalies that allow shunting of oxygenated bld
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Old 10-05-2012
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Default TGV

I think transposition of great vessels is the most common cause of early cyanosis.I think I have read it somewhere
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In newborns its TGV after neonatal period is TOF...here's the link..http://www.hawaii.edu/medicine/pedia...xt/s07c03.html
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TGA is the most common cause of cyanosis in newborns, and a very significant percentage die. Therefore, the second most common cause of cyanosis becomes the most common after 3 months, that being TOF
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Old 10-06-2012
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Quote:
Originally Posted by Baphomet View Post
TGA is the most common cause of cyanosis in newborns, and a very significant percentage die. Therefore, the second most common cause of cyanosis becomes the most common after 3 months, that being TOF


Yes........agree with the above mentioned opinion..........though TGV is a cause of cyanosis which becomes evident immediate after birth if there is presence of shunting of blood......but in most cases baby dies from hypoxia. So the commonest cause of cyanosis in newborn is TOF.
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