I took Yogi in for admission for his colonoscopy this afternoon..
It was with a vet who has a very high reputation in this area
Our consultation lasted very nearly an hour and he asked me to recap on the case history, then did a physical exam. He mentioned Yogi had a lowish heart rate (nothing serious) and explained about the colonocopy, but said he did not think it was the next stage, as he suspected the problems are being caused by a perinela hernia. He drew a very helpful diagram to explain it. Basically there is some muscle wastage on both (more pronounced on one) sides of the rectum and this has caused a pouch to develop into which fecal matter accumulates. When there is sufficient accumulation, Yogi tries to pass it but because it's not normal shape and very impacted, this causes difficulties and straining and sometimes blockage. He has admitted Yogi for further tests overnight and is going to have the soft tissue specialist take a look and is also testing for Addison's, just in case. Apparently perineal hernia is not uncommon in middle agd intact males, especially collies (often associated with prostate enlargement, which I don't think is the case with Yogi). As soon as he explained it, I immediatly felt he was right as it all seemed to fit with the symptoms. It can be surgically corrected so that is a relief. I will have to wait until about 3pm tomorrow to hear what is going to happen next, but for the first time this began, I acatually think we are getting somewhere.
It was horrible having to leave Yogi behined and I am thinking about him all the time, but he's quite laid back about this kind of thing so hopefully will take it in his stride. I had thought that the colonoscopy was the only diagnostic option left but now I am hopeful he will not have to endure this.
I'm feeling optimistic and worrying at the same time, which is odd and can't wait for tomorrow afternoon to come!