I have a sow with heart failure, never went for further investigation of a scan etc as it wouldnt change yhe outcome- it really is trial and error with meds. From my knowledge usually fortekor is the base heart med and vetmedin will usually be added in later if fortekor alone isnt effective enough- or added at the same time if it is known to support the specific abnormality with the heart, usually a murmur.
My sow is 7 in march, her initial symptoms where seeming off for 2 months until her fluid finally filled with fluid and heart failure was diagnosed after xray. She was started on fortekor and frusemide. Base dose of frusemide wasnt enough so she was put on high end dose to keep fluid under control- this was meant to be temporary but 6 months in and she still requires same dose. The fortekor works from the point of keeping the circulation up, and slowing down any further disease. We added in vetmedin as sometimes there was a VERY faint murmur detected- this made fudge very poorly and it was in her best interest to stop it all together. It just wasnt suitable for her and she couldnt tolerate it.
I managed to bring her back from that very bad spell to become stable again, and she slowly gained non fluid weight. This was due to addition of another diuretic- spironolactone- which i think
Is the only reason fudge is with me today. This should only be added in once high, regular doses of frusemide arent controlling the fluid.
She now weighs only 50g less than her healthy weight, 8 months after initial symptoms started and 6 months after treatment started. She is happy, lively and has a good quality of life.
With frusemide, the recommended dose is 2-4mg every 8-12 hours. If your piggy needs more than 4mg i.e she still has fluid retention, dont increase the dose but increase the frequency (how often you give it). Higher than 4mg wont provide any further effect but can damage the kidneys, a higher risk than the already risky use of diuretics.
The aim is to have them stable
On heart meds so that no fluid builds up and the use of diuretics can stop- this isnt always possible. Fudge is stable, but high end frusemide is what she needs to be stable. Its just the way it is and i would rather have her for a shorter time when she is happy, than longer but miserable. In saying that, not one single vet (specialist included thought she'd last till october.)
Shes had a recent blip due to human error, but she will bounce back.
This isnt a death sentence, fudge is beating the odds. Your piggy will too hopefully, its just a matter of persevering until then xx