EFFECT OF GUM CHEWING ON RESIDUAL GASTRIC VOLUME IN FASTED OBESE PATIENTS: A RANDOMIZED CONTROLLED TRIAL

Patients will be randomized in one of the two groups i.e. Group CG where patients will chew a sugar free gum for one hour and Group NG where no gum will be chewed. All patients will be assessed for Baseline residual gastric volume using point-of-care gastric ultrasound (POCUS-G) (V0), Quality of Recovery-15 (QoR-15), Anxiety using Amsterdam peri-operative anxiety scale (APAIS) at the beginning of the study in the preoperative room as baseline. Thirst score and Hunger score will be recorded as baseline. Thereafter, they will be asked to chew a sugar-free gum for an hour. After one hour, the gum will be removed and residual gastric volume will be assessed at the end of 1st hr and then at the end of 2nd hr. After the second residual gastric volume assessment, anxiety assessment using APAIS will be done along with Thirst score and Hunger score before the patient is wheeled in the OT. In the postoperative period, PONV score at 1st, 4th, 6th, 12th and 24th hour, QoR-15 score at the end of day1 will be assessed.

The primary outcome will be residual gastric volume at the end of 1st hour. The secondary outcomes will be residual gastric volume at the end of 2nd hour,  APAIS Baseline and at 2nd hour of gum chewing, PONV score at the end of 1st, 4th, 6th and 12th and 24th hour post-operatively, Thirst score and Hunger score at baseline and at the end of 2nd hour,  QoR – 15 score at baseline and at day one  Sore throat and Hoarseness at day one**.**