Suffering from Cirrhosis of liver, recurrent fluid accumulation causing intense pain, TIPS procedure recommended. Safe?

HI ! My mother is suffering from Cirrhosis of liver ! Its been three months that she has been suffering from acute pain in her back due to ascetic fluid accumulations. She cannot sleep at night due to pain and uneasyness in her abdomen and back. Her 80% liver has been scarred as per the doc and inspite of all the possible tests the main cause has not been found as in why her liver is self destructing ! We have extracted fluid for some relief but it accumulates again in couple of days and the entire process of pain restarts. Now the doc have suggested TIPS procedure and this symptomatic treatment will help fluid not to accumulate and the fluid will pass via urine in a normal way. I want to know a)What are the side effects of this TIPS procedure which are bound to happen?? b)And as the fluid will pass via urine then will she lose protein contents severely?? c)Is it life threatning procedure?? d)Once its done is it possible that the fluid accumulation can start once again ?? e)Will the stent be placed permanently and if yes then will it cause discomfort f)How will it effect the day to day activity g)what are the post treatment cautions or caring required?? I am sorry to have asked numerous but apt questions which comes to my mind immediately..i will be glad if these are answered in details so that i can take necessary decision around it. Thanks for understanding and wish you all keep helping people like us on a daily basis. regrds Anand