Presence of neuropathy in children and adolescents with type 1 diabetes evaluated with bedside modalities

AIMS: To investigate the prevalence of diabetic polyneuropathy (DPN), cardiac autonomic neuropathy (CAN) and sudomotor dysfunction in children and adolescents with type 1 diabetes using bedside modalities. Secondly, to evaluate the co-existence of these types of diabetes neuropathies. METHODS: Cross-sectional study including 221 children and adolescents with type 1 diabetes. DPN was assessed by vibration sensation threshold and sural nerve conductance, CAN by cardiac reflex tests and sudomotor function by electrochemical skin conductance. RESULTS: Median (interquartile range) age was 14.2 (11.9, 16.5) years, diabetes duration 4.8 (2.7, 7.7) years and Hba1c 7.1 (6.6, 7.9) %, (54: 49, 63 mmol/mol). Three had retinopathy; all had normal albuminuria. DPN was present in 40 %, early CAN in 17 %, established CAN in 3 % and sudomotor dysfunction in the feet in 5 %. Of these, 60 % had one type of neuropathy, while 35 % had two types. Only 1 participant manifested all three types of neuropathies. CONCLUSIONS: Bedside modalities demonstrated a high prevalence of neuropathy in children and adolescents with type 1 diabetes, despite good glycemic outcome, short diabetes duration and absence of complications. A lack of co-existing neuropathies was shown, underscoring the need for multiple screening modalities.