First, I’m so, so sorry you had to do that
Next, and finally, please don’t beat yourself up. Almost 13 years ago I ended up with the real JB on the table at NSCU. They discovered 8-9’ of large intestine was dead due to a strangulating lipoma, same as yours. He was 20 at the time. They guessimated about a 20% chance of a quality of life after a resection of that sort, at his age. I opted to have him PTS right there on the table If he’d have been 10 I wouldn’t have blinked - would have said go for it. Even at 15 I might done the surgery, and at 15 maybe his chances of good life after might have been better than 20%.
But at 20, to deal with a recovery like that, with a good chance of adhesions and other complications and potentially a really long time of a diet he didn’t really like (ie probably no hay or grass for a long time), I couldn’t do that to him.
Your vet said 50% chance of living a year. That doesn’t mean it would be a qualify of life, and let me tell you, recovering from a resection is not what a horse would consider quality living. Not only would you have to deal with the normal potential post-surgery complications, there are all sorts of issues that can crop up related to the resection.
You definitely did not fail him. He never had any concept of the future in that context. A resection is not to be taken lightly. There’s little value in having an animal alive if it takes work to keep him alive. Please trust that Buddy is or was in no way sad, betrayed, or confused. He simply could not feel those things in that situation.
All he COULD feel is knowing you would help take the pain away, and you did that. He had no concept that would mean there was nothing after that.
I had JB for 15 years and he taught me immensely important things about horses, about being a horsewoman, and more. I totally felt some guilt for not doing the surgery for a few weeks - what IF he’d been one of the 20%, what IF things had been the sunny day scenario in his recovery and return to a normal life, what IF.
But the odds were really not in his favor, not for an uneventful recover, not for a long happy life, and once I came to grips with that, really evaluated it, I knew I’d feel even more guilt if I had “saved” him just to consign him to future colics from adhesions or the wrong food or all the things that could have caused him trouble.
At 20, with all he’d done for me, given me, he’d been and done enough, and that became enough to be ok with my decision.
I still miss him a LOT, crying right now remembering that decision and those days. But mostly I remember all the fun, and have enjoyed, very much, his occasional visits in my dreams
I hope you can get to that place too. You are not alone, you did not make the wrong decision. I promise