儿童 1型糖尿病 30年临床特征及随访观察

目的 分析儿童1型糖尿病（T1DM）的临床特征,探讨该病对儿童生长发育的影响程度及后期并发症发生的情况。方法 对发病年龄在13个月至14．7岁,经实验室检查确诊为T1DM的210例患儿的临床特征进行了回顾性分性,并对99例患儿进行了1～24年的并发症、生长发育、死因随访。结果 因单纯糖尿病人院者47例（22．4％）;伴酮血症入院者69例（32．9％）;伴酮症酸中毒入院者94例（44．7％）,其中农村患儿78例。起病时有诱因者43例,其中自停胰岛素15例。酮症酸中毒患儿住院时间明显比单纯糖尿病患儿长（P〈0．05）。随访的99例中出现各种并发症50例,其中以微血管病变发生率最高。病程长易并发各种并发症（P〈0．05）,病后的监测方法与并发症的发生也明显相关。患儿组身高明显低于对照组（P〈0．05）。结论 酮症酸中毒是儿童糖尿病的基本特征;病程长易并发各种并发症;加强对儿童糖尿病患者的血糖检测和病后教育,将对儿童糖尿病的治疗起重要作用。     

Ketoacidosis at presentation of type 1 diabetes in children in Kuwait: frequency and clinical characteristics

Abdul‐Rasoul M, Al‐Mahdi M, Al‐Qattan H, Al‐Tarkait N, Alkhouly M, Al‐Safi R, Al‐Shawaf F, Mahmoud H. Ketoacidosis at presentation of type 1 diabetes in children in Kuwait: frequency and clinical characteristics. Background: Diabetic ketoacidosis (DKA) has significant morbidity and mortality, and is common at diagnosis in children. Objective: Describe the frequency and severity of DKA at diagnosis of type 1 diabetes mellitus (T1DM) in children in Kuwait. Methods: Hospital records of 677 diabetic children less than 12 yr of age, diagnosed during the period of 2000–2006 were reviewed. DKA was defined as blood glucose > 11 mmol/L, pH < 7.3, and/or bicarbonate < 15 mmol/L with ketonuria. Results: Of all patients diagnosed with T1DM, 255 (37.7%) presented with DKA. The frequency of DKA was constant between 2000 and 2002 (42.7–41.5%), but decreased in the following years to 30.7% in 2006 (p < 0.005). The majority had either mild or moderate DKA (74.1%). Fifty‐one (36.7%) of all children in the 0–4 yr had severe DKA compared to ten (2.9%) in the 5‐ to 8‐yr‐old group, and three (1.5%) in 9‐ to 12‐yr‐old patients (p < 0.0001). Moreover, 83% of children with severe DKA were in the 0–4 yr age group. One child (0.15%) died and twenty‐seven (4%) needed intensive care unit (ICU) care. Conclusion: Our study provides recent data on Middle Eastern population, for whom data are sparse. Although it has significantly decreased, the frequency of DKA at presentation of T1DM in children in Kuwait is still high, secondary to the high prevalence of diabetes in the community. Young children, especially those less than 2 yr old remain at high risk. Increasing the general awareness of the public as well as of pediatricians to the disease may lead to early diagnosis before the development of acidosis.     

Ketoacidosis at onset of type 1 diabetes mellitus in children--frequency and clinical presentation

Abstract: Background: Since 1987, patients with newly diagnosed diabetes mellitus type 1 under 15 yr of age have been registered in Baden‐Wuerttemberg (BW), Germany. Aim: Our aim was to describe the frequency and the clinical presentation of diabetic ketoacidosis (DKA) at onset of type 1 diabetes mellitus in children. Methods: All 31 pediatric departments in BW and one diabetes center participated in this study. Hospital records of 2121 children below 15 yr of age were examined retrospectively. DKA was defined as glucose > 250 mg/dL, pH < 7.30 or bicarbonate < 15 mmol/L and ketonuria. Statistical analysis was done after logarithmic transformation. Results: 26.3% (n = 558) of all patients presented with DKA. The mean age of these patients was 7.9 yr. The frequency of DKA is higher in girls than in boys (28.9 vs. 23.8%; p = 0.0079). Those aged 0–4 yr suffered most frequently (p < 0.0001) from ketoacidosis (36.0%). The percentage of DKA in newly diagnosed cases was constant over 10 yr. 23.3% of all patients with DKA presented with an altered level of consciousness; 10.9% of these had clinical signs of coma. No deaths occurred. The proportion of ketoacidosis does not increase concurrently with the number of diabetes manifestations in winter. Conclusion: The proportion of DKA in children with newly diagnosed diabetes mellitus is significant. In particular, children < 5 yr and girls face an increased risk. DKA may be the result of a particularly aggressive subtype of diabetes.     

Bilateral metabolic cataracts in 10-yr-old boy with newly diagnosed type 1 diabetes mellitus

Abstract:  Classic symptoms of diabetes mellitus in childhood prompting parents to seek medical attention include polydipsia, polyuria, polyphagia, weight loss and kussmal breathing. Cataracts with juvenile diabetes usually occur in patients with long-standing, poorly controlled diabetes (1, 2) . We describe a child in whom the acute loss of vision secondary to lenticular opacities was the initial sign of insulin-dependent diabetes mellitus.     

胰岛素泵治疗儿童1型糖尿病酮症酸中毒32例临床分析

目的 观察胰岛素泵持续皮下注射胰岛素对儿童1型糖尿病酮症酸中毒(DKA)的疗效.方法 将2005-2008年收治的1型DKA患儿64例分为治疗组32例和对照组32例.治疗组予胰岛素泵治疗,对照组予小剂量胰岛素持续静脉滴注治疗.比较两组患儿血精变化、DKA纠正时间及住院时间.结果 治疗组血糖下降相对稳定,酸中毒纠正时间治疗组[(16.91±4.223)h]短于对照组[(23.31±3.797)h](P<0.001),且无反复.治疗过程中治疗组未出现低血糖,对照组出现1例.住院时间治疗组[(15.63±2.458)d]短于对照组[(20.88±3.348)d](P<0.001).结论 胰岛素泵持续皮下注射胰岛索治疗儿童1型糖尿病酮症酸中毒安全有效.     

IgA bovine serum albumin antibodies are increased in newly diagnosed patients with insulin-dependent diabetes mellitus, but the increase is not an independent risk factor for diabetes

We studied the significance of antibodies to bovine serum albumin (BSA) as a risk factor for insulin-dependent diabetes mellitus (IDDM) in a case-control setting. IgA and IgG antibodies to BSA and ovalbumin were measured from sera of 104 patients with newly diagnosed IDDM and of 111 matched controls by enzyme-linked immunosorbent assay. Patients with diabetes had significantly higher levels of IgA antibodies to BSA ( p = 0.003); IgG antibodies also tended to be higher ( p = 0.08). Levels of IgA antibodies to ovalbumin were similar in the patients and controls, but IgG antibodies were higher in controls ( p = 0.02). When antibodies to BSA, β-lactoglobulin, whole cow's milk and islet cell antibodies were studied as risk determinants of IDDM in a multivariate, logistic regression analysis, IgA antibodies to β-lactoglobulin and to cow's milk were independently associated with the risk ( p = 0.037 and 0.048, respectively), while antibodies to BSA were not a significant risk factor. The results question the role of BSA as a cross-reacting antigen with pancreatic β-cell surface proteins in the aetiology of IDDM.     

Clinical presentation of type 1 diabetes

OBJECTIVE: To identify the presenting features of type 1 diabetes in a national incident cohort aged under 15 yr, the duration of symptoms, the occurrence of diabetic ketoacidosis (DKA) at presentation, and the frequency of a family history of diabetes. METHODS: A prospective study was undertaken of incident cases of type 1 diabetes using an active monthly reporting card system from January 1, 1997 to December 31, 1998 in the Republic of Ireland. Follow-up questionnaires were distributed to pediatricians nationally. RESULTS: Two hundred and eighty-three incident cases were identified. Polyuria, polydipsia and weight loss were the main presenting symptoms in all age categories. Nocturnal enuresis was reported in 19% under 5 yr and in 31% aged 5-9.99 yr. Constipation was noted in five patients and in 10.4% under 5 yr of age. The median duration of symptoms was highest in the youngest (under 2 yr) and oldest (10-14.99 yr) age categories. Presentation in moderate/severe DKA occurred in 25% overall and six of nine of those aged under 2 yr. A family history of type 1 diabetes in a first-degree relative was found in 10.2%. CONCLUSIONS: This study confirms the abrupt onset of type 1 diabetes, the absence of a family history, and the importance of the classical symptoms of polyuria, polydipsia, and weight loss in the majority of cases. It reveals secondary enuresis as an important symptom, especially in those under 10 yr, and constipation in the under 5 yr age group. The very young (under 2 yr) are more difficult to diagnose, have more variability of symptom duration, and are more likely to present in moderate/severe DKA. A high index of suspicion aids early diagnosis.     

Increased incidence and severity of diabetic ketoacidosis among uninsured children with newly diagnosed type 1 diabetes mellitus

OBJECTIVES: (a) To determine the incidence and severity of diabetic ketoacidosis (DKA) and (b) to stratify according to insurance status at the initial diagnosis of type 1 diabetes (T1DM). RESEARCH DESIGN AND METHODS: Subjects included children <18 yr who presented with new-onset T1DM from January 2002 to December 2003 and were subsequently followed at the Barbara Davis Center. Insurance status and initial venous pH were obtained. RESULTS: Overall, 383 subjects presented with new-onset T1DM and 359 (93.7%) were enrolled. Forty-three (12.0%) of these children were uninsured and 40 (11.1%) had Medicaid. One hundred and two (28.4%) subjects presented with DKA. When compared to the insured subjects, uninsured subjects had a significantly increased risk of presenting with DKA [odds ratios (OR): 6.19, 95% CI 3.04-12.60, p < 0.0001], as well as presenting with severe DKA, defined as venous pH <7.10 (OR: 6.09, 95% CI 3.21-11.56, p < 0.0001). There were no differences, however, between the insured and Medicaid subjects in their probability of presenting with DKA or severe DKA. The risk of presenting with DKA (as well as with severe DKA) was the highest among patients <4 yr old. CONCLUSIONS: At the time of initial diagnosis, uninsured patients were more likely to present with DKA than insured patients. Furthermore, when the uninsured subjects presented with DKA, the condition tended to be more severe and life-threatening. A potential explanation is that uninsured subjects may delay seeking timely medical care, thereby presenting more critically ill, whereas insured subjects may have their T1DM diagnosed earlier.     

Clinical presentation of childhood type 1 diabetes mellitus in the Al-Madina region of Saudi Arabia

AIM: To describe the clinical pattern and the laboratory characteristics at presentation of childhood type 1 diabetes mellitus in the Al-Madina region of the north-west province of Saudi Arabia. METHODS: The clinical and laboratory data of a total of 230 children who presented with diabetes during a 10-year period (1992-2001) were retrospectively analyzed based on hospital records. RESULTS: Polyuria and polydipsia were by far the most frequent symptoms at presentation (96%); three quarters of the children (76.6%) had weight loss at presentation. One hundred and twenty-seven children (55.2%) of 230 presented with ketoacidosis. The mean age at diagnosis was 6.9 yr. The average duration of presenting symptoms before the hospital encounter was 17.1 d ranging from 3.0 to 45.0 d, with an average of 16.2 d in boys and 17.7 d in girls, a difference which was not significant. CONCLUSION: Polyuria, polydipsia, and weight loss are the most common symptoms at presentation of childhood diabetes mellitus in our region. The frequency of diabetic ketoacidosis was relatively high. The commonly recognized symptoms of diabetes were present in most of the children for a relatively long duration before the diagnosis. This calls for a collaboration of efforts for the early recognition of symptoms by patients and physicians to avoid the more severe types of presentation.     

25-羟维生素D与儿童1型糖尿病及酮症酸中毒的相关性研究

目的探讨血清25-羟维生素D[25-(OH)D]水平与儿童1型糖尿病(T1DM)及酮症酸中毒(DKA)的相关性。方法选取2006年1月—2009年12月期间152例住院患儿,其中52例为首次发病的T1DM患儿,包括酮症酸中毒(DKA组)21例,以及非酮症酸中毒(非DKA组)31例,其余100例为非T1DM组。检测并比较三组患儿的血清25-(OH)D水平,分析血清25-(OH)D水平与儿童T1DM及DKA的相关性。结果 DKA组患儿的血清25-(OH)D平均为(53.6±27.8)nmol/L,显著低于非DKA组的(69.7±27.9)nmol/L和非T1DM组的(81.8±28.3)nmol/L(P<0.05);非DKA组患儿的血清25-(OH)D水平显著低于非T1DM组(P<0.05)。结论 T1DM患儿的血清25-(OH)D水平低,尤以DKA患儿最为明显,维生素D在儿童T1DM发病中的潜在保护效应值得关注。     

Low levels of vitamin D in North Indian children with newly diagnosed type 1 diabetes

Borkar VV, Devidayal, Verma S, Bhalla AK. Low levels of vitamin D in North Indian children with newly diagnosed type 1 diabetes. Background: To find out whether vitamin D levels are lower in children with newly diagnosed type 1 diabetes (T1D) as compared to non‐diabetic subjects. Methods: Plasma levels of vitamin D (25‐OHD) were measured by high performance liquid chromatography (HPLC) in 50 children aged between 6 and 12 yr within a week of diagnosis of T1D, and in 50 healthy children. Results: The mean levels of vitamin D were significantly lower in patients as compared to their controls [20.02 ± 10.63 ng/mL (50.05 ± 26.57 mmol/L) vs. 26.16 ± 12.28 ng/mL (65.4 ± 30.7 mmol/L), p‐value 0.009]. Twenty‐nine (58%) children in the study group were vitamin D deficient (25‐OHD level < 20 ng/mL or < 50 mmol/L) as compared to only 16 (32%) in the control group. Overall, 43 (86%) diabetic and 38 (76%) healthy children were either vitamin D deficient or insufficient. Conclusion: These results suggest that vitamin D levels are low at the onset of T1D, and they strongly support the need for further clinical studies to prospectively evaluate the effect of vitamin D supplementation on T1D rates in this patient population.     

Prevalence of coeliac disease and longitudinal follow-up of antigliadin antibody status in children and adolescents with type 1 diabetes mellitus

Coeliac disease (CD) is more prevalent in individuals with type 1 diabetes mellitus (DM), and when untreated is associated with a number of medical complications, including poor glycaemic control. Identification of patients with CD has been facilitated in recent years by serological screening, including the use of antigliadin antibodies (AGAs) and endomysial antibodies (EMAs). The aim of this study was to assess the prevalence of CD in a clinic-based paediatric population with type 1 DM, and to study longitudinal changes in AGA status. Two-hundred-and-eighty-one children and adolescents with type 1 DM aged 9.9 +/- 3.8 yr were screened using AGAs of immunoglobulin A (IgA) and immunoglobulin G (IgG) classes (AGA-IgA and AGA-IgG). Thirty-five patients had both antibodies positive and underwent gastro-duodenoscopy and multiple biopsies. Fifteen of the 35 patients had histological evidence of CD, and the overall clinic prevalence of CD was 5.7%. A number of patients did not exhibit florid symptoms, and recurrent unexplained hypoglycaemia was a significant finding. Patients who perceived themselves to be asymptomatic had more problems with compliance with a gluten-free diet (GFD). Ninety-seven patients had follow-up AGAs performed after 2.5 +/- 1.5 yr. One patient with initially normal AGAs developed positive antibodies and histological findings of CD. Antibody status has fluctuated in other patients. CD is common in patients with DM, and diagnosis is important to detect to minimize long-term morbidity related to both disorders. Initial normal screening does not exclude CD and repeat screening is indicated.     

Sulfonylurea challenge test in subjects diagnosed with type 1 diabetes mellitus

Background: Patients with early onset diabetes because of defects in glucose‐stimulated insulin secretion (GSIS) may respond better to sulfonylureas than insulin treatment. Such patients include those with monogenic disorders, who can be differentiated from autoimmune type 1 diabetes mellitus (T1DM) by genetic testing. Genetic testing is expensive and unknown defects in GSIS would not be diagnosed. Aims: We propose a sulfonylurea challenge test to identify patients who have been clinically diagnosed with T1DM, but those who maintain a preferentially sulfonylurea‐responsive insulin secretion. Materials & Methods: A total of 3 healthy controls, 2 neonatal diabetes mellitus (NDM) subjects, 3 antibody‐positive (Ab+T1DM), and 12 antibody‐negative (Ab?T1DM) subjects with type 1 diabetes, were given an intravenous bolus of glucose followed by an oral dose of glipizide. Results: Healthy controls showed a robust C‐peptide increase after both glucose and glipizide, but NDM subjects showed a large increase in C‐peptide only following glipizide. As expected, 2 of 3 Ab+T1DM, as well as 11 of 12 Ab?T1DM showed no response to either glucose or glipizide. However, 1 Ab?T1DM and 1 Ab+T1DM showed a small C‐peptide response to glucose and a marked positive response to glipizide, suggesting defects in GSIS rather than typical autoimmune diabetes. Discussion: These data demonstrate the feasibility of the sulfonylurea challenge test, and suggest that responder individuals may be identified. Conclusions: We propose that this sulfonylurea challenge test should be explored more extensively, as it may prove useful as a clinical and scientific tool.     

Clinical features at the onset of childhood type 1 diabetes mellitus in Shenyang,China

Aim: To describe the clinical picture and laboratory features of Chinese children with newly diagnosed type 1 diabetes mellitus. Methods: The clinical and laboratory data of a total of 203 children who presented with newly diagnosed type 1 diabetes mellitus during a 5‐year period (2004–2008) were retrospectively analysed based on hospital records. Results: There were 88 boys (43.3%) and 115 girls (56.7%) with a median age of 8.3 years. The age distribution was categorised as 0–4 years: 52 (25.6%), 5–9 years: 57 (28.1%) and 10–14 years: 94 (46.3%). We found a peak incidence rate in the older age group. No significant seasonality was observed. The most common symptoms were polydipsia, polyuria and weight loss. Eighty‐five (41.9%) of all patients presented with diabetic ketoacidosis (DKA). The average duration of presenting symptoms before the hospital encounter was 24.5 days. Young age group children had shorter duration (17.1 days, P= 0.03) and significantly lower levels of C‐peptide (P= 0.003) and haemoglobin A1c (P= 0.049) than the other groups. Children with DKA had a higher incidence of preceding infections (P= 0.032), lower free triiodothyronine and free thyroxine levels (P= 0.035, 0.046), and higher white blood cell counts (P= 0.000) than the non‐DKA group. Conclusion: The duration between the onset of the symptoms and diagnosis was long, and the proportion of DKA in children with newly diagnosed diabetes mellitus was high. These findings call for a collaborative effort for the early recognition of symptoms by patients and physicians in order to avoid more severe types of presentation.     

Chromium levels in healthy and newly diagnosed type 1 diabetic children

Background: The aim of this study was to compare the chromium levels of plasma (PCL), erythrocyte (ECL) and urine (UCL) in type 1 diabetics and healthy subjects and to review the relation between metabolic parameters. Methods: We evaluated 165 subjects who were: newly diagnosed type 1 diabetics (group 1 [n= 29]); previously diagnosed type 1 diabetics (group 2 [n= 18]); non‐diabetic control subjects who were admitted and treated for any reason in hospital (group 3 [n= 21]); and two other groups of control subjects from two schools that have different socioeconomic levels (group 4 [n= 48] and group 5 [n= 49]). Results: PCL in group 1 and group 2 subjects (7.21 ± 4.78 and 10.94 ± 3.04 mcg/L, respectively) was significantly lower than in all control groups (21.84 ± 7.87, 16.11 ± 7.44, 17.25 ± 8.58 mcg/L, respectively) (P < 0.05). A significant difference in PCL between the group 1 and group 2 subjects was present (7.21 ± 4.78 and 10.94 ± 3.04, respectively) (P= 0.021). ECL (as tissue chromium) in group 1 and group 2 subjects (13.99 ± 11.37 and 19.64 ± 12.58, respectively) was significantly lower than in all control groups (28.20 ± 7.34.25, 49 ± 12.47, 26.37 ± 9.77 mcg/L, respectively) (P= 0.05). UCL in group 1 and group 2 subjects (11.44 ± 6.88 and 15.68 ± 6.75 mcg/L, respectively) was significantly lower than in group 3 subjects (28.83 ± 9.37mcg/L) (P < 0.05). There were significant correlations between length, bodyweight and PCL in the group 1 subjects (r = 0.42, P= 0.22 and r = 0.53, P= 0.03, respectively). There was a negative correlation between plasma glucose and UCL, which was not statistically significant in group 2 subjects (r =?0.4, P= 0.061). Conclusion: There was a negative chromium balance in type 1 diabetics. This negative balance may affect the insulin function badly. If this negative balance should be confirmed by recent studies we suggest that chromium supplementation with insulin is necessary for type 1 diabetes.