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Description of microangiopathy in children with type 1 diabetes mellitus: a 19-year retrospective study
B Bouhanick1, H Raguin, V Rohmer
1Adult Department of Diabetology, Service de Medecine B, Angers, France. BeBouhanick@chu-angers.fr
Insights
This study followed type 1 diabetes patients for over 10 years, finding that good glycemic control is key to preventing complications like retinopathy and nephropathy.
Area of Science:
- Endocrinology
- Diabetology
- Ophthalmology
- Nephrology
Background:
- Assesses long-term outcomes for type 1 diabetes patients managed in a university hospital setting.
- Focuses on patient cohorts transitioning from pediatric to adult care.
Purpose of the Study:
- To evaluate the progression of retinopathy and nephropathy in type 1 diabetes patients.
- To identify factors influencing the development and severity of diabetes-related complications.
Main Methods:
- Retrospective analysis of 50 type 1 diabetes patients with a disease duration of 19 +/- 6 years.
- Assessment of retinopathy and nephropathy progression, stability, or improvement.
- Correlation of glycemic control (HbA1c) with complication development.
Main Results:
- 50% of patients developed retinopathy, with proliferative retinopathy linked to higher HbA1c levels (9.7 +/- 1.6%).
- 26% of patients had microalbuminuria, also associated with poorer glycemic control (HbA1c 9.3 +/- 2.1%).
- Glycemic control was similar in patients with non-proliferative retinopathy and those without.
Conclusions:
- Proliferative retinopathy and nephropathy are significantly related to glycemic control levels.
- Maintaining optimal glycemic control is crucial for preventing severe diabetes complications.
Background:
The aim of the study was to estimate the outcome of patients with type 1 diabetes followed in a university hospital in the paediatric department and then in the adult diabetic department for at least 10 years.
Methods:
We made a retrospective analysis of 50 patients (28 women and 22 men) with type 1 diabetes with disease duration of 19 +/- 6 years and analysed whether retinopathy and nephropathy had progressed, had remained unchanged or had improved or normalised.
Results:
The mean age of diabetes onset was 8 +/- 4 years (1-16). Ketoacidosis revealed diabetes in 36% of the children. Mean HbA(1c) was 8.6 +/- 1.8%, and was over 8.5% in 34% of the patients. The mean age at onset of puberty (Tanner stage II) was 12 +/- 1 years in girls and 13 +/- 1 years in boys. Mean HbA(1c) was 7.9 +/- 1.2% during the year before onset of puberty and 8.7 +/- 1.1% in the following 3 years, corresponding to a 10% pubertal increase in HbA(1c). Retinopathy was seen in 50% of the patients at a mean age of 22 +/- 5 years, 15 +/- 6 years after onset of diabetes. Mean HbA(1c) was 9.7 +/- 1.6% in patients with proliferative retinopathy, 9.0 +/- 1.5% in patients with non proliferative retinopathy, and 8.1 +/- 1.3% in those without (p=0.02, proliferative versus no retinopathy, p > 0.05 non proliferative versus no retinopathy). Microalbuminuria was diagnosed in 26% of the patients. Mean HbA(1c) was 9.3 +/- 2.1% in patients with microalbuminuria versus 8.1 +/- 1.3% in those with normoalbuminuria (p=0.02).
Conclusions:
Glycemic control was similar in patients with non proliferative retinopathy and those without. Proliferative retinopathy and nephropathy were both related to the level of glycemic control.
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