Effect of Preoperative Oral Carbohydrates on the Insulin Resistance of Elderly Patients

Not Applicable

Completed

• Conditions: Old Age
• Interventions: Dietary Supplement: carbohydrate group - carbohydrate (400ml)

• Registration Number: NCT04206189
• Lead Sponsor: Yonsei University

Brief Summary

Postoperative cognitive dysfunction (POCD) is more common in older patients, and increased insulin resistance is an important factor for POCD. Fasting before surgery is performed to reduce the incidence of pulmonary aspiration after anesthesia. However, prolonged fasting increases insulin resistance. Recently, it is recommended to minimize fasting times and consume carbohydrate drinks before surgery. Therefore, the investigators investigate whether preoperative carbohydrate drinks can reduce insulin resistance in the elderly patients. Fifty patients (age\>65 years) scheduled for arthroplasty will be divided into carbohydrate (n=28) and control (n=28) groups. Randomly selected patients of the carbohydrate group are given 400ml of 12.8 g/100 ml carbohydrate beverage 2-3 hours before their scheduled operation. In contrast, patients in the control group are fasted from water 2 h before surgery according to standard protocol.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2019-12-15
• Study First Submitted QC: 2019-12-19
• Study First Posted: 2019-12-20
• Study Start: 2020-04-01
• Primary Completion: 2021-01-13
• Study Completion: 2021-01-18
• Status Verified: 2021-05
• Last Update Submitted: 2021-05-24
• Last Update Posted: 2021-05-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 56

Inclusion Criteria

1. Patients undergoing arthroplasty
2. age>65 years

Exclusion Criteria

1. The subject is a foreigner or illiterate
2. Patients with gastroesophageal reflux disease, gastric emptying disorders, inflammatory bowel disease, or previous treatment for intra-abdominal cancer
3. Patients with chronic renal disease or severe cardiovascular disease
4. HbA1c >69 mmol/mol or BMI >30 kg/m2
5. A duration of ≥5 h between consumption of CHO and initiation of surgery.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Carbohydrate group	carbohydrate group - carbohydrate (400ml)	-

Primary Outcome Measures

Name	Time	Method
Insulin resistance	1 hour after surgery	Insulin resistance index = glucose x insulin/22.5

Secondary Outcome Measures

Name	Time	Method
glycemic variability	10 minutes after admission of recovery room	Coefficient of glucose variability =SD/mean x 100 (%)

Trial Locations

Locations (1)

Department of Anesthesiology and Pain Medicine , Anesthesia and Pain Research Institute, Yonsei University College of Medicine; 🇰🇷 Seoul, Korea, Republic of