The animal will usually be in ICU after the operation, where pain will be controlled. Dehydration will be prevented by using a drip to feed, and to administer medication. Organ functioning will be monitored daily using blood tests. These will also show if there is any bleeding internally and will allow the carers to know if any transfusion of plasma or blood is required.
Once your pet is discharged, you will need to give them antibiotics and pain pills at home. They may eat a diet that is low in fats if you choose to cook for them until they return to their normal diet. Due to the fact that the animal will try to lick its wound, a collar (called an Elizabethan Collar) will be fitted to stop this. You can also use a T-shirt to cover the surgical cut. A follow-up appointment will occur within two weeks after the procedure. This is when chemotherapy (if necessary) will start. The prognosis is excellent and your pet can live a normal life three to four years post-surgery. Spreading of cancer occurs in five percent of cases in dogs.
In cats, if a resectable biliary cystadenoma, is removed, survival is extended. Prognosis is reduced if the tumours grow again. With tumours that are sarcomas or carcinoids, a successful outcome is less achievable due to the fact that most of these tumours are secondary and have spread from another organ.
The lifespan of a dog that has had a tumour removed is improved fifteen times, compared to a dog who does not have a tumour removed. Unremoved tumours of the liver can burst and this becomes dangerous due to bleeding internally. Another aspect of a tumour is that it can push against the primary bile duct, stopping bile drainage which is what causes the yellow appearance called jaundice. Another side effect is that it pressurizes organs or abdominal blood vessels. This is what leads to throwing up or abdominal swelling. Tumours of the liver can make a substance similar to insulin, which will cause blood sugar to be lower than it should be. This is, however, rare.
Bleeding that continues post-operatively (prevalence of less than two percent), can cause death. Other problems after surgery can be an infection, tumour regrowth, or twisting of the lobe of the liver closest to where the tumour was excised. Finally spreading to other parts of the body can occur.