I'm apx 10 weeks pregnant and have congestive heart failure, buergers disease and a pacemaker. is it possible to have a full term pregnancy?

Yes, but high risk: Due to these conditions, yours will be seen as high risk and ALL your Dr(s) - OBGYN, cardios, etc need to work together. QUIT SMOKING if you still do! The rare disease you name is even more rare in females so risks will be unknown but w/ good care and your full compliance it's probably possible - but prepared to have lots of help for perhaps a few years. Good luck! Best wishes.