Bariatric Surgery, Postoperative Nausea and Vomiting
Conditions
Keywords
Perioperative Nursing, Bariatric Surgery, Postoperative Nausea and Vomiting, Postoperative Recovery, Carbohydrate Feeding
Brief summary
This randomized controlled trial aims to evaluate the effects of preoperative oral administration of 200 ml 12.5% carbohydrate solution on postoperative nausea, vomiting, and recovery in bariatric surgery patients. The intervention group received carbohydrate loading two hours before surgery. Outcomes were measured using the Rhodes Index of Nausea, Vomiting and Retching (RINVR) and the Postoperative Recovery Index (PORI).
Detailed description
This randomized controlled trial was designed to evaluate the effects of preoperative low-volume oral carbohydrate loading on postoperative nausea, vomiting, and recovery in patients undergoing bariatric surgery. A total of 105 adult patients scheduled for bariatric surgery were randomized into two groups: an intervention group (n = 53) and a control group (n = 52). The intervention group received 200 mL of a 12.5% carbohydrate solution orally two hours before surgery, while the control group followed standard preoperative fasting protocols without receiving any carbohydrate supplementation. The primary hypothesis was that preoperative low-volume carbohydrate loading would reduce the frequency and severity of postoperative nausea, vomiting, and retching (PONV), and improve postoperative recovery. Data were collected using validated instruments including the Rhodes Index of Nausea, Vomiting and Retching (RINVR) and the Postoperative Recovery Index (PORI). Outcomes were assessed within 24 hours postoperatively and at postoperative day 30. Randomization was performed using computer-generated block randomization, and outcome assessment was blinded. The intervention was administered by a trained researcher, and standard postoperative nursing care protocols were applied to both groups.
Interventions
DIETARY_SUPPLEMENTLow-Volume Oral Carbohydrate Loading (200 mL of 12.5% solution)
Patients were given Low Volume Oral Carbohydrate feeding (200 mL 12.5% solution) in the preoperative period.
Sponsors
Marmara University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)
Masking description
Due to the nature of the intervention, no blinding was applied to participants or investigators. However, outcome assessors and statisticians were blinded to group allocation to reduce bias during data analysis.
Intervention model description
This study used a randomized, parallel-group design with two arms: an intervention group receiving low-volume oral carbohydrate loading before surgery, and a control group receiving standard care. Participants were allocated using computer-generated block randomization, and each participant received only one type of intervention.
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Age ≥ 18 * Scheduled for bariatric surgery * ASA score ≤ IV * Literate in Turkish and able to provide informed consent
Exclusion criteria
* Use of antiemetics, steroids, or opioids within 24 hours pre-op * Need for ICU post-op * Reoperation
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| RINVR Total Score | Day 1 | RINVR Total Score within 24 hours postoperative |
| PORI Score | Day 30 | PORI Score at discharge and at 30-day follow-up |
Countries
Turkey (Türkiye)
Outcome results
None listed