10% Carbohydrate Drink for Preventing Post-operative Nausea and Vomiting (PONV) After Spinal Morphine
|Nausea and Vomiting, Postoperative||Dietary Supplement: 10% carbohydrate drink||Phase 1|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Prevention
|Official Title:||Oral Rehydration Therapy With 10% Carbohydrate Drink for Preventing Postoperative Nausea and Vomiting (PONV) After Low Dose of Spinal Morphine in Patients Undergoing Total Knee Replacement|
- The incidence of postoperative nausea and vomiting after TKR [ Time Frame: 24 hours ]Compare the incidence, severity and rescue therapy of PONV in control (fast)group a group and the study (carbohydrate drink) group
- Incidence of hyperglycemia during perioperative period [ Time Frame: 24 hours ]Regarding to the perioperative stress and carbohydrate drinking, we also measure blood sugar before and postoperation and compare their values between groups
|Study Start Date:||February 2011|
|Study Completion Date:||June 2012|
|Primary Completion Date:||June 2012 (Final data collection date for primary outcome measure)|
No Intervention: control
patient receive nothing
Experimental: carbohydrate drink
Dietary Supplement: 10% carbohydrate drink
In the study group, 10% carbohydrate drink 400 ml will be given between 18-24 hr the night before surgery and another 400 ml will be drunk at 6-7 hr in the morning of surgery.
Other Name: Green mate (orange favor)
We enroll patients who are undergoing TKR under spinal anesthesia with 0.5% heavy bupivacaine 10-15 mg (2.0-3.0 ml)+ intrathecal morphine 0.2 mg+ femoral nerve block with 0.25% bupivacaine 20 ml.
The enrolled patients will fast after midnight and in the morning they are allowed to drink 10% carbohydrate drink or not to drink (according to their randomization). 400 ml of 10% carbohydrate drink is drunk between evening and midnight and extra water if needed in the study group. In the control group, the patients are allowed to drink until midnight. Total of water consumption between 18.00-24.00 will be recorded in both groups. In the morning, the study group will drink another 400 ml of 10% carbohydrate drink between 6 - 7 am. The premedications should not include sedation or GI mobility drugs. Before starting anesthesia, the patients will be asked some questions about thirsty, hungry, anxiety and nausea and weigh their feeling from 0-10.
The surgery and pain therapy will be tha same in both groups and the PONV (incidence, severity and rescue therapy) at recovery room and 24 hours postoperative period will be recorded.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01301404
|Bangkok, Thailand, 10700|
|Principal Investigator:||Manee Raksakietisak, MD||Mahidol University|