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 type | Observational |
|---|---|
| Ages | 19 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Seoul National University Hospital Academic / other |
| Locations | 1 site (Seoul) |
| Status | Recruiting |
| Started | May 27, 2026 |
| Main results expected | May 31, 2028 |
| Study ends | May 31, 2028 |
| Registry record updated | June 26, 2026 |
| Trial ID | NCT07385170 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
- Study coordinator: Karam Nam, M.D., Ph.D.
- Email: karamnam@gmail.com
- Phone: +82 2 2072 0643
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Impact of Fast-Track Anesthesia on Postoperative Delirium After Cardiac Surgery
This observational study tests whether fast-track anesthesia, compared with conventional care, is linked to lower rates of delirium after elective cardiac surgery in adults.
-
Sarcopenia in Patients After Cardiac Surgery
This observational study tests how common sarcopenia is after cardiac surgery and whether current care helps improve muscle mass and function.
-
Preoperative functional optimization for adults undergoing major cardiac or abdominal surgery
This study tests a four‑week prehabilitation program to improve fitness before elective major cardiac or abdominal surgery.
-
Oral Extubation Right After Cardiac Surgery
This trial tests whether waking patients and removing the breathing tube in the operating room after elective cardiac surgery helps recovery more quickly without added risk.
-
Frailty and Ultrasound-Guided Catheterization in Adult Cardiac Surgery Patients
This study tests whether frailty and ultrasound measurements taken before surgery can predict how difficult it will be to place an ultrasound-guided internal jugular venous catheter in adults undergoing elective cardiac surgery.
-
Prehabilitation before heart surgery for adults with congenital heart disease
This study is testing whether a tailored, supervised exercise program before heart surgery helps adults with congenital heart disease perform better and improve fitness.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.