My sister-in-law just had twin boys two weeks ago. She had them vaginally and baby a came out pale and b 7 minutes later was darker. I have little information as the have not spoken much. Baby a is home but baby b is still in NICU. The doctors have been performing tests and ultrasounds and now a ct scan. Baby b has bleeding on the brain and swollen ventricles. The doctors told them today that they need to put in a ventricular shunt to reduce the swelling. Could this be due to Acute TTTS due to a vaginal birth? She has regular check-ups for ttts and was never diagnosed with it.