- βCGMs detected significantly more episodes of high blood sugar compared to traditional finger-prick testing
- βAll 15 patients in the study reported a positive experience wearing the CGM device
- βCGM use was found to be practical and feasible in the lung transplant setting, opening the door for wider use
| Journal | Frontiers in transplantation |
| Year | 2023 |
| PMID | 38993859 |
What This Study Is About
After a lung transplant, between 20% and 40% of patients develop a type of diabetes called Post-Transplant Diabetes Mellitus (PTDM). This condition can increase the risk of organ rejection, infections, heart problems, and even death. Keeping blood sugar under control is critically important for these patients.
What Researchers Did
A team of researchers wanted to find out whether continuous glucose monitors (CGMs) β small wearable devices that track blood sugar levels around the clock β could work well for lung transplant patients. They enrolled 15 lung transplant patients who were already managing high blood sugar with insulin. Each patient wore a CGM for 10 days while also doing traditional finger-prick blood sugar checks. The CGM was set to "blinded" mode so it didn't influence patient behaviour during the study.
What They Found
The CGM was significantly better at detecting high blood sugar (hyperglycemia) compared to traditional self-monitoring. Specifically, CGMs caught meaningfully more instances of blood sugar being dangerously high. For detecting low blood sugar (hypoglycemia), there was no significant difference between the two methods.
Perhaps just as importantly, every single patient reported a positive experience using the CGM device, suggesting it is practical and acceptable for this patient group.
Why This Matters for Patients
If you have had a lung transplant, managing your blood sugar is one of the most important things you can do to protect your new lung and your overall health. Missing episodes of high blood sugar β which finger-prick testing can do if checks aren't frequent enough β can quietly cause damage. A CGM watches your glucose levels continuously, day and night, potentially catching problems before they become serious.
Important Limitations
This was a small pilot study with only 15 patients. Larger studies are needed before CGM use becomes standard care for transplant patients. The study also didn't measure long-term transplant outcomes, so we don't yet know if CGM use leads to better survival or fewer complications.
The Bottom Line
CGMs appear to be both practical and effective for lung transplant patients dealing with high blood sugar. If you or a loved one has had a lung transplant and is managing diabetes or high blood sugar, it's worth asking your transplant team whether a CGM could be right for you.