......the only real answer is contact the airline and get EVERYTHING in writing!! Then consult with your doctor and get the OK in writing and in ENGLISH (just in case remember the sob story on the Turkish board?!). Then make sure you carry ALL the documents in your handluggage.

Don't get me wrong I don't think it is a good idea because you are simply too far from really good help in the event of an emergancy BUT if you have a REALLY good reason for having to go and the Dr. is happy with your wifes condition and the airline is willing to fly you then it is your decision....