Your son was born through an operation the reason for which, as you have mentioned, is passage of stool which is called meconium inside the uterus only. This is a condition where the baby passes stool in response to some stress, the cause of which may not always be identifiable. When this happens, the baby is likely to take a breath and inhales meconium into the lungs. This, after birth, causes difficulty in breathing, pneumonia and a condition called Persistent pulmonary hypertension of the newborn (PPHN) which means very high blood pressure within lungs. This can be a very critical situation and the baby may require breathing support with the help of a ventilator as is the case with your child. Over a period of time things should improve if the lungs are in a recoverable condition. At times lungs may have suffered a very severe insult where recovery becomes diffcult. I am sure the baby is getting the best of treatment. Have patience and I wish with time things would get better.