How will you proceed with anaesthesia for a child, 15 yrs old, weighing 102kg and height 165cms with BMI 37.5,with post traumatic Pan Hypopituitarism on Ventriculo-Peritoneal shunt, developed a intra-abdominal cyst related with V-P shunt posted for Laparotomy for drainage of cyst and readjustment of V-P shunt. His Hb=15.3gm% ; RBS - 93mg% ; S.Creatinine - 0.65mg/dl ; S.Na - 141mmols/L: S-K -4.1mmols/L ; S-Cl - 101mmols/L.
He is on Tab.Prednisolone 10mg twice daily; Somatotropin 1.6mg s/c six days a week; intra nasal desmopressin twice daily. Please give your suggestions regarding perianaesthetic problems and its management.