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Hi!
Hoping for some clarification here:
On page 103 of the 3rd edition it states that TOF has “widely split S2, a single S1 and possible a click.” On the table on page 105 it states that TOF has a “Single S2 because PV component absent.”
So which is it for TOF: a widely split S2 OR a single S2???
Any other tips for this section???
Thanks so much!
Sheila
Great question, complicated answer.
S2 is made up of A2/P2.
In Tetralogy of Fallot, there actually is a wide split of S2… BUT, the P2 component is usually so soft that it’s EXTREMELY difficult to hear. Since it’s RARELY audible, you’ll only hear a single S2.
I’ll update the book for the next edition. Thanks for asking.
– AG
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