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The aim of this study is to compare the effect of preoperative carbohydrate load versus the fasting protocol in patients undergoing major abdominal operations.
The surgical patients are influenced by many stressors during operation such as the prolonged fasting hours. Importantly, these stressors are iatrogenic and have been shown to disturb homeostasis with little benefit. Surgery itself, induces an endocrine and inflammatory stress response and contributes to postoperative insulin resistance (PIR) which increased also by Preoperative fasting.
Postoperative insulin resistance is a state of reduced insulin-mediated glucose uptake in skeletal muscles and adipose tissue, with an increased glucose release due to hepatic gluconeogenesis and hyperglycemia.
Strategies to reduce the postoperative stress response and postoperative insulin resistance include shortening the preoperative fasting time via preoperative carbohydrate oral drink administration (carbohydrate load). Preoperative fasting is the first step in postoperative insulin resistance development. The traditional fasting time of 6-8 h before elective surgery to prevent pulmonary aspiration usually extends up to 12 h in anesthetic practice. Overnight fasting is a physiological state of reduced insulin sensitivity due to the normal hormonal diurnal rhythm. If patients undergo surgery in the prolonged fasted state, insulin resistance may begin even before surgery.
A preoperative carbohydrate drink acts as a morning meal, may improve insulin sensitivity and propel the patient's metabolic state towards anabolism. The rationale of this study is to compare the differences between preoperative CHO loading and a conventional fasting protocol on the postoperative insulin resistance, Glasgow prognostic score (GPS), subjective patient well-being and surgical clinical outcome.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Fast (Control) group | Placebo Comparator | Patients were instructed to be fasting for 6 hours before surgery and received only placebo drink (200 ml clear water) two hours before surgery |
|
| Carbohydrate group | Experimental | Patients were given a meal of cup of yogurt (100 ml) with 2 spoonful of honey (42 gm) at midnight before surgery and 200 ml of a clear carbohydrate drink on the day of surgery, 2 h before anesthesia induction. This drink consisted of 200 ml water in which two spoonful of honey were dissolved. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Placebo drink | Other | Patients were instructed to be fasting for 6 hours before surgery and received only placebo drink (200 ml clear water) two hours before surgery |
|
| Measure | Description | Time Frame |
|---|---|---|
| The metabolic response | The patient was also subjected to further assessment by bioelectrical impedence analysis for measuring of the basal body muscle mass preoperatively and 5 days postoperatively. | 5 days postoperatively |
| Measure | Description | Time Frame |
|---|---|---|
| The postoperative inflammatory response | Postoperative inflammatory response was assessed at 6 o'clock A.M on the day of surgery (T1, basal value), 6 h after surgery (T2), at 6 o'clock A.M on postoperative day 1 (T3) . | First day postoperative |
| Complications |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Eman M AboOmar, Master | Contact | 00201090822808 | emantaher6669@gmail.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Tanta University | Recruiting | Tanta | El-Gharbia | 31527 | Egypt |
The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
After the end of study for one year.
The data will be available upon a reasonable request from the corresponding author.
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| ID | Term |
|---|---|
| D005215 | Fasting |
| ID | Term |
|---|---|
| D005247 | Feeding Behavior |
| D001519 | Behavior |
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| ID | Term |
|---|---|
| D002241 | Carbohydrates |
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| Carbohydrate | Dietary Supplement | Patients were given a meal of cup of yogurt (100 ml) with 2 spoonful of honey (42 gm) at midnight before surgery and 200 ml of a clear carbohydrate drink on the day of surgery, 2 h before anesthesia induction. This drink consisted of 200 ml water in which two spoonful of honey were dissolved. |
|
Complications such as nausea and vomiting were assessed preoperatively and at intervals 4, 8, 12, and 24 hours postoperatively |
| 24 hours postoperatively |
| Time of independent ambulation | Time of independent ambulation will be recorded. | 27 days postoperatively |
| Postoperative discharge day | Postoperative discharge day will be recorded. | 27 days postoperatively |