Preoperative Ultrasound Guided Evaluation of SVC-CI and IVC -CI as Predictors of Hypotension After Induction of Anaesthesia in Major Onco-surgery

Patients undergoing major Oncosurgeries are fluid deficit due to preoperative fasting , inadequate intake due to disease hence prone to development of hypotension after induction of general anaesthesia owing to vasodilatory effects of anesthetic induction agents. Investigators plan study to measure ultrasound guided Superior Vena Cava and Inferior Vena Cava collapsibility Index as predictors of hypotension after induction of General anaesthesia.