Prognosis of portocaval shunt depends on all Except -
"Originally used to assess mortality related to porto-systemic shunts, the Child's score also predicts mortality in patients with cirrhosis after hepatic resection"- CSDT
Prognosis of portocaval shunt depends on Child's criteria
Child's Criteria:

Serum bilirubin
Serum albumin
Ascites - (Presence & degree of ascites)
Neurological disorder
Prothrombin time
Serum bilirubin
Serum albumin
Refractory ascitis
Type of shunt