Conversation so far:
Where was Thalberg born?
Thalberg was born in Brooklyn.
When was he born?
CANNOTANSWER.
Who were his parents?
William and Henrietta (Haymann).
Did he have any siblings?
CANNOTANSWER.
Where did he attend school?
During his high school years in Brooklyn.
What else is significant during his early years?
Shortly after birth, he was diagnosed with "blue baby syndrome," caused by a congenital disease that limited the oxygen supply to his heart.

Question: What were the effects of this?
Self-contained rewrite: What were the effects of Irving being diagnosed with a congenital disease?