So, we're sitting in the CICU right now. The cath didn't quite go as planned -
Sammy was going in for a cath on Friday to close a fenestration (hole) purposely created during his Fontan surgery last May. This is a fairly straightforward procedure - they go in through an artery or vein and snake a line into his heart. They then deploy a closure device to plug the hole. Since they created the hole with something akin to a hole puncher, it's a nice, neat circle, easily handled with the closure device. (Here's an explanation of it all: http://www.aboutkidshealth.ca/PrinterFriendly.aspx?articleID=10295&categoryID=)
However, when they went in to close the fenestration (which went textbook, btw), they discovered that his body had created a vein between his liver and his heart. This vein was drawing blood away from the Fontan circulation and allowing for much more mixing than should have been - which is why he's been SO blue. They think that the vein was there prior to the Fontan but was too small to see by echo, and that the new Fontan circulation allowed it to grow too large. Typically, these "collaterals" grow between the heart and the lungs, and this hepatic collateral is apparently really rather rare.
They attempted to close this hepatic collateral with a closure device just like the one they used for his fenestration; however, unlike the surgeon-created fenestration, the hepatic vein was created by his body and the outline wasn't so smooth. They chose the best size to use, and the concern was that there might still be some bloodflow through the gaps around the device. Otherwise, he came out of the cath with oxygen saturations (sats) in the 90s.
That night, his sats continued to drop - down into the high 60s. A morning xray showed that the device in his hepatic vein had dislodged and was now in his heart. Further testing showed that it had not only gotten into his heart, but had moved THROUGH his tricuspid valve and into his right ventricle. This was the point where they determined open-heart was necessary - they needed to get in there and retrieve the device and close the hepatic vein by sewing it off.
That was Saturday. Cardiac-wise, he's been doing well. Emotionally, he is very unhappy and I can't blame him.
You can follow updates on my twitter: http://www.twitter.com/erikarenee
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Our thoughts are with you all. Sammy's site is always so uplifting; even with all that you're going through right now you have such a positive energy. I'm sure that is part of the reason that Sammy is such an amazing boy. You'll likely notice an energy increase with the fenestration closed and the collateral removed. Our son was always going full bore but once he had his fenestration closed (at Sick Kids in Toronto, in April) he stepped it up another notch. Sammy is strong - he'll be OK, I believe that 100%. Will follow on twitter. Stay strong.
Posted by: Janet Jaynes at September 28, 2009 11:22 AMErika,
I am sooooo sorry things didn't go as smoothly as planned. Oh how I wish Samson's cath day had been as smooth as Grace's. I just took a look at twitter and what a Praise that he may be moving to the floor! That is one step closer to being home :) We just moved homes and have been without internet for 2 weeks. I was just able to log on today and got your message. Thank you so much for commenting on Grace's blog. I can't wait to sit down and read your blog. Samson and you guys will most definitely be in our prayers!
Furr Family
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Erika and Jay-
Posted by: amy fiorillo at September 28, 2009 7:57 AMWe can't stop thinking about you guys. I'm sure the unexpected surgery has been traumatic for all of you. All of our positive thoughts and prayers are with Sammy and the both of you right now. Hoping that you get to the floor soon and that being able to play will help bring out that smile that you are waiting for.
Many hugs,
Amy and Lou