The Effect of Prepubertal Diabetes Duration on Diabetes: Microvascular Complications in Early and Late Adolescence

Donaghue, Kim C.; Fung, A. T. W.; Hing, Stephen; Fairchild, Jan; King, Jennie; Chan, Albert; Howard, Neville J.; Silink, Martin

doi:10.2337/diacare.20.1.77

Cited by 99 publications

(75 citation statements)

References 16 publications

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“…These results suggest that the presence of ICAs and IAAs at diagnosis does not influence the development of complications. Rather, known predictors of microvascular complications include longer diabetes duration, especially for the prepubertal years with diabetes and health care utilization (47)(48)(49). The association of higher GAD titer levels at diagnosis with pupillary abnormalities is consistent with the previous report of higher titers at the time of diagnosis of peripheral neuropathy (45).…”

Section: Tpoas and Development Of Thyroid Diseasesupporting

confidence: 81%

“…Celiac disease was confirmed by small-bowel biopsy and was offered to all patients with positive AGA or EMA titers. Screening for microvascular complications was undertaken 3.1-13.4 years after diagnosis at the Children's Hospital at Westmead and included assessments of retinopathy, nephropathy, and autonomic and peripheral neuropathy (47)(48)(49)(50). Retinopathy was defined as the presence of at least one microaneurysm or hemorrhage in at least one eye detected by seven-field stereoscopic fundal photography (48).…”

Section: Research Design and Methods -From A New Southmentioning

confidence: 99%

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The Role of Autoimmunity at Diagnosis of Type 1 Diabetes in the Development of Thyroid and Celiac Disease and Microvascular Complications

et al. 2005

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OBJECTIVE—The purpose of this study was to explore whether the presence of thyroid and endomysial autoantibodies at diagnosis of type 1 diabetes in children predicts development of thyroid and celiac disease, respectively, and whether diabetes-associated autoantibodies at diagnosis predict development of microvascular complications up to 13 years later. RESEARCH DESIGN AND METHODS—Autoantibodies were measured at diagnosis of type 1 diabetes in 173 children aged 0–15 years and included thyroperoxidase antibody (TPOA), endomysial antibody (EMA), islet cell autoantibody, GAD antibody (GADA), and insulin autoantibody. Thyroid disease was defined as thyroid stimulating hormone level ≥5 μU/ml. Celiac disease was confirmed by small-bowel biopsy. Assessment of microvascular complications included stereoscopic fundal photography, pupillometry, thermal threshold, and albumin excretion rate (AER). RESULTS—The incidence rates for thyroid and celiac disease were 0.9 and 0.7 per 100 patient-years, respectively. Within 13 years, 6 of 13 children with positive TPOA tests at diagnosis developed thyroid disease compared with 5 of 139 children with negative TPOA tests (P < 0.001). All four patients with positive EMA titers at diagnosis had biopsy-proven celiac disease. Five of 11 patients who developed thyroid disease and 4 of 8 who developed celiac disease had negative TPOA and EMA tests at diagnosis, respectively. Retinopathy was detected in 39% and elevated AER in 36%. The presence of diabetes-associated autoantibodies at diagnosis did not predict microvascular complications though GADA titer levels predicted pupillary abnormality. CONCLUSIONS—Elevated TPOA and EMA levels at diagnosis of type 1 diabetes predict the development of thyroid and celiac disease, respectively. In children with negative antibody titers at diagnosis, screening at 2-year intervals is recommended.

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Section: Tpoas and Development Of Thyroid Diseasesupporting

confidence: 81%

Section: Research Design and Methods -From A New Southmentioning

confidence: 99%

The Role of Autoimmunity at Diagnosis of Type 1 Diabetes in the Development of Thyroid and Celiac Disease and Microvascular Complications

et al. 2005

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“…This finding is in contrast with some longitudinal studies in which the duration of prepubertal diabetes seemed to have limited effect on longterm complications (32). This study also demonstrated a high prevalence of microalbuminuria, which was higher in the older children, in accordance with other studies (33). There was no correlation between duration of diabetes and occurrence of microalbuminuria.…”

contrasting

confidence: 57%

Survey on Acute and Chronic Complications in Children and Adolescents With Type 1 Diabetes at Muhimbili National Hospital in Dar es Salaam, Tanzania

Majaliwa

Ramaiya

et al. 2007

Diabetes Care

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OBJECTIVE -The purpose of this study was to assess glycemic control and complications of type 1 diabetes in children and adolescents in Tanzania. RESEARCH DESIGN AND METHODS -This demographic and clinical survey in-cluded 99 children aged between 5 and 18 years attending Muhimbili National Hospital Clinic for Diabetes. A structured questionnaire was used for evaluating socioeconomic data and for estimation of the prevalence of acute complications occurring over the last 6 months. The prevalences of retinopathy and diabetic nephropathy were determined by fundus ophthalmoscopy and by microalbuminuria, respectively.RESULTS -All of these children were treated with a conventional insulin regimen. The mean Ϯ SD duration of diabetes was 4.76 Ϯ 3.58 years. Only 1 child (1%) had good glycemic control (A1C Ͻ7.5%), 60 children (60.6%) had moderate glycemic control (A1C 7.5-10%), 14 children (14.1%) had poor glycemic control (A1C Ͼ10 -12.5%), and 24 children (24.2%) had very poor glycemic control (A1C Ͼ12.5%). At onset of diabetes, 75% of children presented with diabetic ketoacidosis (DKA); 89 children (89.80%) had at least one episode of DKA, and 55 children (55.67%) had symptomatic hypoglycemic episodes. Microalbuminuria was present in 29 (29.3%) and retinopathy in 22 (22.68%) children.CONCLUSIONS -Although there are some methodological limitations, this survey highlights the difficulties of achieving good metabolic control and the high prevalence of acute and chronic complications in Tanzanian children with type 1 diabetes. These results clearly show that major efforts are needed to improve quality of care in children with type 1 diabetes in Tanzania. Diabetes Care 30:2187-2192, 2007T ype 1 diabetes is one of the most frequent chronic disease in children and represents a public health challenge globally. Its burden is huge in developing countries owing to the lack of a basic means for reaching reasonable glycemic control. Because of the unavailability of reliable epidemiological data, the natural history of type 1 diabetes, including its complications, is largely unknown (1). With the few data available on subSaharan African children, incidence in Tanzania was estimated to be 1.5/ 100,000 (2), and an increase in incidence in Sudan from 9.5/100,000 in 1991 to 10.3/100,000 in 1995 has been reported (3). The prevalence is higher in Western countries (4,5), suggesting the possibility of missed diagnosis in sub-Saharan Africa. In fact, the problem of missed diagnosis of childhood diabetes, although not unique to developing countries (6), is certainly much more common than in developed countries (7). In a Sudanese study, it was reported that 10% of children were not admitted at the time of diagnosis, being admitted only after they developed diabetic ketoacidosis (DKA) or hypoglycemia (3). This situation contributes to omission of patients in the registry as well as to the possibility of death before diagnosis, especially for those aged Ͻ5 years. In sub-Saharan Africa, most children present with DKA at the time of diagnosis (8,...

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“…Retinopathy has been reported to be present with diabetes duration of 1-2 years (171,172); however, it usually is not recognized before 5-10 years of diabetes duration (80,(172)(173)(174). Although retinopathy is most commonly described after the onset of puberty, retinopathy can occur in prepubertal children (175).…”

Section: Retinopathymentioning

confidence: 99%

Care of Children and Adolescents With Type 1 Diabetes

Klingensmith²,

et al. 2005

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The Effect of Prepubertal Diabetes Duration on Diabetes: Microvascular Complications in Early and Late Adolescence

Abstract: Prepubertal subjects with diabetes did not have less retinopathy or elevated albumin excretion compared with pubertal subjects of the same age. Prepubertal diabetes duration is significantly related to the presence of retinopathy in adolescents.

Cited by 99 publications

References 16 publications

The Role of Autoimmunity at Diagnosis of Type 1 Diabetes in the Development of Thyroid and Celiac Disease and Microvascular Complications

The Role of Autoimmunity at Diagnosis of Type 1 Diabetes in the Development of Thyroid and Celiac Disease and Microvascular Complications

Survey on Acute and Chronic Complications in Children and Adolescents With Type 1 Diabetes at Muhimbili National Hospital in Dar es Salaam, Tanzania

Care of Children and Adolescents With Type 1 Diabetes

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