Evaluating the Dexcom G7 glucose monitoring after heart surgery

Accuracy of the Dexcom G7 Continuous Glucose Monitoring System Following Cardiac Surgery

Not applicable Interventional The Cleveland Clinic · NCT06338748

This study is testing how well the Dexcom G7 glucose monitor works compared to regular blood tests for patients recovering from heart surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment28 (estimated)
Ages18 Years and up
SexAll
SponsorThe Cleveland Clinic Academic / other
Locations1 site (Cleveland, Ohio)
Trial IDNCT06338748 on ClinicalTrials.gov

What this trial studies

This study aims to assess the accuracy of the Dexcom G7 Continuous Glucose Monitoring System compared to traditional blood glucose monitoring methods in patients following cardiac surgery. Participants will have their blood glucose levels measured every 1-3 hours using both the Dexcom G7 and standard methods in the Cardiovascular Intensive Care Unit (CVICU) and on regular floors. The study will analyze the agreement and correlation between the two monitoring systems, as well as any errors that may occur. The Dexcom G7 will be applied by qualified medical personnel upon the patient's arrival in the CVICU.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older who are scheduled for cardiothoracic surgery and will be admitted to the CVICU.

Not a fit: Patients with allergies to the materials used in the continuous glucose monitoring systems or those with certain skin conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance glucose monitoring accuracy for patients recovering from cardiac surgery, potentially improving their overall care.

How similar studies have performed: Previous studies have shown promise in the use of continuous glucose monitoring systems in various settings, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18 years old and above
* Planned cardiothoracic surgery
* Planned admission to Cleveland Clinic Main Campus building J5 or J6 or Q5 cardiovascular intensive care unit (CVICU) followed by transfer to the step down unit
* With or without known diabetes (as 75% of patients entering the CVICU have hyperglycemia requiring intravenous insulin infusion)
* If with known diagnosis of diabetes, diabetes can be type 1, type 2, or secondary (such as due to glucocorticoids or pancreatitis

Exclusion Criteria:

* Allergy to the material of the continuous glucose monitoring systems (CGMS) or the adhesive to be used
* Skin conditions precluding the use of the CGMS
* Pregnancy
* Other conditions that the investigators deem inappropriate for the study
* Patients receiving mechanical circulatory assist devices

Where this trial is running

Cleveland, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Continuous Glucose Monitoring
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.