BACKGROUND: The efficacy of short-term professional continuous glucose monitoring (CGM) for glycemic control in patients with diabetes remains unclear. METHODS: We performed a 3-month study to evaluate the benefits of CGM in 64 patients. RESULTS: The overall glycemic control of patients who underwent CGM improved significantly; however, that of patients maintaining the same medications did not improve overall. Thirty-one patients with unchanged medications were divided into improved (n = 12) versus nonimproved (n = 19) groups. In the improved group, baseline hemoglobin A1c (HbA1c) levels were higher than in the nonimproved group (P = 0.0066) despite mean blood glucose levels remaining the same (P = 0.3406). The improved group also exhibited lower glucose variability. CONCLUSIONS: Patients with lower than expected mean glucose levels, based on HbA1c values, and patients with lower glucose level variability during CGM may be able to improve their glycemic control after lifestyle change without treatment modification.
BACKGROUND: The efficacy of short-term professional continuous glucose monitoring (CGM) for glycemic control in patients with diabetes remains unclear. METHODS: We performed a 3-month study to evaluate the benefits of CGM in 64 patients. RESULTS: The overall glycemic control of patients who underwent CGM improved significantly; however, that of patients maintaining the same medications did not improve overall. Thirty-one patients with unchanged medications were divided into improved (n = 12) versus nonimproved (n = 19) groups. In the improved group, baseline hemoglobin A1c (HbA1c) levels were higher than in the nonimproved group (P = 0.0066) despite mean blood glucose levels remaining the same (P = 0.3406). The improved group also exhibited lower glucose variability. CONCLUSIONS:Patients with lower than expected mean glucose levels, based on HbA1c values, and patients with lower glucose level variability during CGM may be able to improve their glycemic control after lifestyle change without treatment modification.