Hi Barbs3,Welcome to the GERD/Heartburn forum! Like you, I found this forum shortly before my Nissen surgery. It was a great resource, and the fine members here really helped me through my recovery.
I can't help you with the CAVA filter. I had a blood clot in my leg post foot surgery (when I was kept off that foot for six weeks), there was no mention of installing a CAVA filter. It's the first I've heard this question, but there may be others here with more helpful information on the topic.
Here's a link to my early recovery journal. Hopefully you'll find it helpful. Keep in mind that I had the surgery because of reflux induced asthma/unhealthy lungs. You can disregard the things I've written that are specific to that issue.
www.healingwell.com/community/default.aspx?f=45&m=2183443There is also a thread with lots of posts from others who've had the surgery. Here's the link to that thread:
www.healingwell.com/community/default.aspx?f=45&m=3132073Stick around and ask any questions that come to mind! There are lots of members here who've been through the surgery and recovery. Good luck with your surgery! Be sure to let us know how you're doing.
Happy healing,
Denise