Preoperative Maltodextrin's Effect on Cardiac Function in Cardiac Surgery

NCT ID: NCT05188222

Last Updated: 2025-02-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE4

Total Enrollment

70 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-01

Study Completion Date

2027-03-01

Brief Summary

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A randomized, controlled, double-blinded clinical trial evaluating the effect of the administration of a Maltodextrin solution on cardiac function in patients presenting for coronary artery bypass grafting surgery with a reduced left ventricular ejection fraction.

Detailed Description

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This randomized, double-blinded clinical trial will test the primary hypothesis that patients receiving preoperative maltodextrin will have an improved intraoperative left ventricular ejection fraction (LVEF), as measured by three-dimensional echocardiography, compared to patients who receive a placebo drink. Seventy patients will be recruited and randomized to each group in a 1:1 ratio.

The second hypothesis is that administering preoperative Maltodextrin to cardiac surgery patients enhances the quality of recovery, as measured by the Quality of Recovery-15 score. Each patient will undergo this questionnaire 48 hours after surgery.

The third hypothesis is that Maltodextrin improves cardiac function by its effect on myocardial glycogen content. This will be evaluated in two ways. First, a separate group of 20 patients will undergo the hyperinsulinemic-normoglycemic clamp (HNC) to have a high-insulin level during surgery with these patients randomized to Maltodextrin or placebo. In addition, 20 patients from the main study will undergo myocardial biopsies to assess the glycogen content in the Maltodextrin and the placebo groups.

Pre-defined subgroups:

* Need for vasopressors or inotropes during measures of cardiac function vs no need
* Male versus female
* Diabetic versus non-diabetic
* Sarcopenic versus non-sarcopenic
* Malnourished versus non-malnourished

Conditions

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Left Ventricular Dysfunction Quality of Recovery Right Ventricular Dysfunction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Patients will be assigned to the intervention or control group based on a computer-generated 1:1 stratified block randomization by procedure type in blocks of 4, stratified by sex.
Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Packets of the study drug will be prepared by Enhanced Medical Nutrition and look identical. The placebo has been formulated to taste the same as Maltodextrin as well

Study Groups

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Intervention Group

Patients in the intervention group will receive an oral preparation of 50 grams of Maltodextrin solution mixed in 400 millilitres (mL) of water twice the night before surgery and within 2-3 hours before surgery. The entire drink is meant to be consumed within 15 minutes.

Group Type EXPERIMENTAL

Maltodextrin solution

Intervention Type DRUG

The oral preparation of 50 grams of Maltodextrin solution mixed in 400 mL of water

Placebo Group

Patients in the intervention group will receive a placebo in 400 millilitres (mL) of water twice the night before surgery and within 2-3 hours before surgery. The entire drink is meant to be consumed within 15 minutes.

Group Type PLACEBO_COMPARATOR

Placebo solution

Intervention Type DRUG

Specifically formulated placebo to provide a similar taste and texture to Maltodextrin, without the same carbohydrate characteristics

Interventions

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Maltodextrin solution

The oral preparation of 50 grams of Maltodextrin solution mixed in 400 mL of water

Intervention Type DRUG

Placebo solution

Specifically formulated placebo to provide a similar taste and texture to Maltodextrin, without the same carbohydrate characteristics

Intervention Type DRUG

Other Intervention Names

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Intervention group Placebo

Eligibility Criteria

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Inclusion Criteria

* 18 years of age or older
* Presenting for coronary artery bypass grafting surgery
* Preoperative left ventricular ejection fraction \< 50%
* First case of the day (7:30am start time)

Exclusion Criteria

* Dysphagia, gastroparesis
* Cannot tolerate oral intake
* Celiac disease
* Type 1 diabetes
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jewish General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Matthew Cameron, MDCM MPH

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Matthew Cameron, MDCM, MPH

Role: PRINCIPAL_INVESTIGATOR

McGill University

Locations

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Jewish General Hospital

Montreal, Quebec, Canada

Site Status

Countries

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Canada

Central Contacts

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Matthew Cameron, MDCM, MPH

Role: CONTACT

514-340-8222 ext. 25701

Mirana Rakotoarivony

Role: CONTACT

Other Identifiers

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MP-05-2022-3112

Identifier Type: -

Identifier Source: org_study_id

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