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Published on: June 11, 2012
Dermatological complications of continuous subcutaneous insulin infusion in children and adolescents
Louise S Conwell1, Elena Pope, Ana M Artiles
1Division of Endocrinology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
Insights
Dermatological changes are common in youth with type 1 diabetes using continuous subcutaneous insulin infusion (CSII) therapy. Lower adiposity correlated with more severe skin issues, but these rarely led to stopping treatment.
Area of Science:
- Endocrinology
- Dermatology
- Pediatrics
Background:
- Continuous subcutaneous insulin infusion (CSII) is a key therapy for type 1 diabetes mellitus (T1D).
- Skin complications can arise from CSII, potentially impacting treatment adherence.
Purpose of the Study:
- To characterize dermatological changes in youth with T1D undergoing CSII.
- To investigate associations between these changes and clinical factors like duration of CSII, age, adiposity, glycemic control (HbA1c), insulin dose, and infusion site parameters.
Main Methods:
- A cross-sectional study involved 50 T1D patients using CSII for over 6 months.
- A grading scale assessed dermatological changes; ultrasound was used in a subset of patients.
- Data on patient demographics, diabetes management, and CSII specifics were collected.
Main Results:
- Frequent dermatological findings included small scars (94%), erythema (66%), nodules (62%), and lipohypertrophy (42%).
- Higher severity scores correlated with lower body mass index z-scores (negative correlation).
- Infusion set angle (90 degrees) was linked to lower severity scores; no correlations found with HbA1c or insulin brand.
Conclusions:
- Dermatological complications are prevalent in pediatric CSII users but are not linked to glycemic control.
- Reduced adiposity was associated with increased severity of skin changes.
- Skin issues rarely prompted patients or parents to consider discontinuing CSII therapy.
Objectives:
To describe the dermatological changes associated with continuous subcutaneous insulin infusion (CSII) therapy in youth with type 1 diabetes mellitus (T1D). To assess their association with duration of CSII, age, adiposity, HbA1(c), insulin dose, insulin brand, infusion set or site.
Study Design:
We conducted a cross-sectional study of 50 consecutive patients with T1D who were using CSII for >6 months (26 female; age, 13.3 +/- 3.5 years [mean +/- SD]; CSII duration, 2.8 +/- 1.7 years; HbA1(c), 7.7% +/- 1.1%). A grading scale was devised. Ultrasound scanning was performed in 8 subjects.
Results:
The mean (+/-SD) severity score was 6.3 +/- 3.5 (range, 0-14; maximum possible, 69). Most common were scars <3 mm diameter (94%), erythema not associated with nodules (66%), subcutaneous nodules (62%), and lipohypertrophy (42%). There was a significant negative correlation between severity score and body mass index z-score (r = -0.3, P = .039), but no correlation with HbA1(c), insulin brand or site. Infusion sets inserted at 90 degrees were associated with lower scores (P = .03). Less than 5% of patients and parents considered stopping CSII because of skin concerns. Ultrasound scanning results of CSII sites revealed mild increased echogenicity of the dermis and hypodermis.
Conclusions:
Dermatological changes were frequent, with increased severity associated with lower adiposity. These complications were not associated with glycemic control, nor did they prompt most to consider stopping CSII.
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