I gave birth to 29 weeker twins. My son, twin A, is doing great on his breathing. He is off the cannuella and breathing on his own. My daughter, twin B, has really struggled with her lungs. She started on the vent and then had to be moved to an oscillating vent due to blood gas levels. She went on Si-Pap last week, spent a day on C-Pap and is now back on Si-Pap. She is on a back up rate of 25 breaths per minute and have maxed out pressure settings and her oxygen level is around 40%. The respiratory therapist is talking about putting her back on the vent if they can't get the settings down. She gets breathing treatments twice a day and received 4 rounds of surfactant after birth that did not help. They are going to check for infection today but the doctors just keep saying she has immature lungs with lots of fluid around them. Anyone else go through this and how long did it last? How is your babies' lungs today? We are on day 25. Thanks in advance.