Hi there, sorry to hear this.
I don't know if this helps at all and I am not giving any advice but happy to share our experiences:
Our 5-6 year old sow Dottie has heart disease, she had an enlarged heart detected on ultrasound, but they also found fluid and they could hear a galloping heart beat. She has never had bloods taken.
- She's on frusol to help reduce/keep the fluid away.
- She has vetmedin which helps the heart pump/contract stronger (I am sure it is more detailed than that, but that's the general idea the vets gave me!).
- these seemed to help her for several months.
- More recently, when some more fluid came back, we added a drug called Cardalis, which contains an ACE inhibitor called benazapril with some spironlactone, which is another diruetic).
- Dottie is under the care of the Royal Veterinary College exotics team and her drugs have all been approved by both the exotic vets and the RVC cardiologist who reviewed her notes- just stating that in case that helps you discuss things at all with your vet (probably not).
Because frusol draws out fluid and can make them 'dry', there is apparently a danger of the kidneys being affected over time, but in our case it's worth her having these meds as the vets are sure her heart disease (which is already progressive, as they all are) would likely be worse without the meds. They have said we should avoid metacam because of the kidney risk, but when we thought or suspect there is any pain involved, they have said we are ok to give her gabapentin instead.
It's also important to keep them hydrated on these heart meds, so we keep an eye on that and make sure she has watery veg (not too much) and obviously access to fresh water which they have anyway.
You can read more about Dottie's case here. Ignore the bit in the title about skin issues - that is not really an issue for her and not related. Her main health issue is her heart disease. It was a year ago when we first stared looking into this and we are learning all the time.
Dottie’s breathing and skin issues She is considered a palliative care piggy now but she still seems happy.
I know some vets are reluctant to try meds out without a clear picture, which I understand, but some will.
All the best
Lucy