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Author12 Posts
  #1

hey mash what is the difference b/w persistent truncus arteriosis and patent ductus arteriosis?

  #2

A persistant truncus is when the aorta is the only outflow tract for both the left and right side of the heard, whereas the PDA is when the ductus arteriosus doesn't close and you have a direct communication between the aorta and the pulmonary artery, and these patients will present with late cyanosis.

___________________
"If He takes you to it, He'll take you through it."

  #3

so rida this means in persistent truncus arteriosis the shunt is right to left.
but in PDA shunt is from left to right but i think later on due to pressure right to left.
am i right rida? :roll:

  #4

Yes santaclara, you are absolutely right smiling face

___________________
"If He takes you to it, He'll take you through it."

  #5

Santa Clara,

There are 3 phases for PDA:

Fetal Life: R-->L shunt
Neonatal: L-->R shunt
Later on: R-->L shunt

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La vita e bella!

  #6

Okk, question for you santaclara....

What is the anatomic problem in persistent truncus arteriosus and what is the disease a/w it?

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La vita e bella!

  #7

Another one...

What are the conditions that need an opened PDA to ensure that pt won't die?

___________________
La vita e bella!

  #8

What is the anatomic problem in persistent truncus arteriosus and what is the disease a/w it?
well bela the reply of this Q is there is a partial developement os AP SHUNT.this result in condition only one large vessel leaves the heart and receive the blood from both right and left ventricles.and also this causes right to left shunt which resultant in cynosis.this defect also associated with VSD.

i think this reply is right anf if u find any mistake let me know.
thanx.

  #9

What are the conditions that need an opened PDA to ensure that pt won't die?
prostaglandin E is the main treatment but i m confused we have to maintain oxygen or not.
i think we have to.
well mash and rida pls correct me. :roll:

  #10

Santa Clara,
Di George's syndrome is a/w Persistent Truncus. U're right...it's a failure of aorticopulm septum to form and it's neurocrest in origin.

Conditions that require opened PDA/VSD/foramen ovale, are the R-->L shunts. Look at FA page 225.

___________________
La vita e bella!

  #11

ok thanx bela as i m going through first reveiw so i m not touching the FA in my sec reveiw i wll probably go for it.
any ways thanx.

  #12

transposition of the great arteries require a pda or asd or vsd for life.







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