Clinical trial Recruiting at 1 site Observational Ages 19 and up

Dexcom G7 glucose monitor accuracy in cardiac surgery patients

Official title: Evaluation of Perioperative Continuous Glucose Monitoring Accuracy in Patients Undergoing Cardiac Surgery

Run by Seoul National University Hospital · NCT07385170 · Data updated 2026-11-12

This study tests whether the Dexcom G7 continuous glucose monitor provides accurate readings for adults undergoing cardiac surgery.

Quick facts

Study typeObservational
Ages19 Years and up
SexAll
Enrollment100 (estimated)
SponsorSeoul National University Hospital
Academic / other
Locations1 site (Seoul)
StatusRecruiting
StartedMay 27, 2026
Main results expectedMay 31, 2028
Study endsMay 31, 2028
Registry record updatedJune 26, 2026
Trial IDNCT07385170 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 19 years and older undergoing cardiac surgery without skin disease at the sensor site.

Probably not a fit

Patients with skin conditions at the sensor site or those not undergoing cardiac surgery may not benefit from CGM data.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study evaluates the accuracy of the Dexcom G7 continuous glucose monitoring system in patients scheduled for cardiac surgery. Participants will be adults 19 or older without skin conditions at the sensor site. Data will be collected during the perioperative period to compare CGM readings with standard glucose measurements. No interventions beyond passive monitoring are described, and the study is led by Seoul National University Hospital. The goal is to determine whether CGM data can reliably reflect patients’ glucose levels during the perioperative phase.

Why it matters

Potential benefit: If accurate, the Dexcom G7 could offer real-time glucose data to guide management in cardiac surgery.

How similar studies have gone: Previous studies have explored CGM accuracy in perioperative settings, with mixed results across devices.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients aged 19 years or older scheduled for cardiac surgery

Exclusion Criteria:

* Skin disease at the sensor application site (proximal arm)

Where it's running

  • Seoul National University Hospital
    Seoul, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.