Portal hypertension the condition shared by all TIPS patients regardless of etiology generally causes compensatory hypertrophy of the hepatic artery and a decreased reliance of the liver upon the portal vein for its oxygenation.
2.
This response is considered cellular regeneration ( a form of compensatory hypertrophy ) where the function and mass of the liver is regenerated through the proliferation of existing mature hepatic cells ( mainly hepatocytes ), but the exact morphology of the liver is not regained.
3.
In fact, losing one kidney usually does not impact kidney function ( people can donate a kidney for transplant or have a kidney removed to treat cancer ); the remaining kidney undergoes something called " compensatory hypertrophy " to make up for the absent kidney.