Obsgynaecritcare

You are the anaesthetic consultant on call and you are woken (again) at 2am on a Saturday night by your registrar. They tell you they have been asked by the obstetric team to see a pregnant woman who has just arrived in the hospital contracting with ruptured membranes at 30 weeks gestation and is telling everyone "I only have half a heart"! The registrar tells you they have had a look through what they describe as a very large set of patient notes. They tell you it appears that they have been seen by a lot of specialists in the antenatal period but no-one in the overnight team is exactly sure what the plan is for this woman. She is starting to get quite uncomfortable and is asking for some pain relief. The patient herself is not the greatest help - she has told your registrar that she too is confused and that a final decision on how she is going to give birth hasn't been made yet - but everyone seems to be really worried about it! What is the Fontan circulation and what implications does this have for pregna