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1.
Br J Clin Pharmacol ; 2024 Mar 26.
Article En | MEDLINE | ID: mdl-38532641

AIMS: The potential harm associated with medication errors is widely reported, but data on actual harm are limited. When actual harm has been measured, assessment processes are often poorly described, limiting their ability to be reproduced by other studies. Our aim was to design and implement a new process to assess actual harm resulting from medication errors in paediatric inpatient care. METHODS: Prescribing errors were identified through retrospective medical record reviews (n = 26 369 orders) and medication administration errors through direct observation (n = 5137 administrations) in a tertiary paediatric hospital. All errors were assigned potential harm severity ratings on a 5-point scale. Multidisciplinary panels reviewed case studies for patients assigned the highest three potential severity ratings and determined the following: actual harm occurrence and severity level, plausibility of a link between the error(s) and identified harm(s) and a confidence rating if no harm had occurred. RESULTS: Multidisciplinary harm panels (n = 28) reviewed 566 case studies (173 prescribing related and 393 administration related) and found evidence of actual harm in 89 (prescribing = 22, administration = 67). Eight cases of serious harm cases were found (prescribing = 1, administration = 7) and no cases of severe harm. The panels were very confident in 65% of cases (n = 302) where no harm was found. Potential and actual harm ratings varied. CONCLUSIONS: This harm assessment process provides a systematic method for determining actual harm from medication errors. The multidisciplinary nature of the panels was critical in evaluating specific clinical, therapeutic and contextual considerations including care delivery pathways, therapeutic dose ranges and drug-drug and drug-disease interactions.

2.
Arch Dis Child ; 2024 Jan 18.
Article En | MEDLINE | ID: mdl-38237958

AIMS: Improved behaviour, mood, cognition and HbA1c have been reported with short-term use of continuous subcutaneous insulin infusion (CSII) in youth with type 1 diabetes (T1D). We sought to re-examine these findings in a randomised controlled trial (RCT), with longitudinal follow-up. METHODS: RCT of youth aged 7-15 years with T1D, at two tertiary paediatric centres. Participants were randomised to commence CSII or continue multiple daily injections (MDI). Behaviour, mood, cognition and HbA1c were assessed. Primary outcome was difference in parent-reported behaviour (BASC-2) at 4 months. After the 4-month RCT, MDI participants commenced CSII; outcomes were reassessed at +2 years. RESULTS: Participating youth (n=101) were randomised to CSII (n=56) or MDI (n=45). Significant differences favouring CSII were found at 4 months in parent-reported behaviour problems (Cohen's d 0.41 (95% CI 0.004 to 0.795); p=0.048) and HbA1c (mean (95% CI) difference: 7 (2.3 to 11.7) mmol/mol (0.6% (0.2 to 1.0%); p=0.001)). Improvements from baseline were documented in mood and cognitive outcomes in both study groups over the 4-month RCT; however, no between-group differences were evident at 4 months. Sixteen of 76 (21%) participants completing assessments at +2 years had discontinued CSII. In n=60 still using CSII, measurements of behaviour, mood and HbA1c were comparable to baseline. CONCLUSIONS: Parent-reported behaviour problems and HbA1c, but not mood or neurocognitive outcomes, were clinically significantly lower with CSII, relative to MDI, after 4 months. Observational follow-up indicated no impact of treatment modality at +2 years, relative to baseline levels. Taken together, these data indicate that use of CSII alone does not comprehensively benefit neuropsychological outcomes in childhood T1D.

3.
Children (Basel) ; 10(2)2023 Feb 07.
Article En | MEDLINE | ID: mdl-36832443

This prospective case-cohort study examines the developmental pathway choices of 79 young people (13.25-23.75 years old; 33 biological males and 46 biological females) referred to a tertiary care hospital's Department of Psychological Medicine (December 2013-November 2018, at ages 8.42-15.92 years) for diagnostic assessment for gender dysphoria (GD) and for potential gender-affirming medical interventions. All of the young people had attended a screening medical assessment (including puberty staging) by paediatricians. The Psychological Medicine assessment (individual and family) yielded a formal DSM-5 diagnosis of GD in 66 of the young people. Of the 13 not meeting DSM-5 criteria, two obtained a GD diagnosis at a later time. This yielded 68 young people (68/79; 86.1%) with formal diagnoses of GD who were potentially eligible for gender-affirming medical interventions and 11 young people (11/79; 13.9%) who were not. Follow-up took place between November 2022 and January 2023. Within the GD subgroup (n = 68) (with two lost to follow-up), six had desisted (desistance rate of 9.1%; 6/66), and 60 had persisted on a GD (transgender) pathway (persistence rate of 90.9%; 60/66). Within the cohort as a whole (with two lost to follow-up), the overall persistence rate was 77.9% (60/77), and overall desistance rate for gender-related distress was 22.1% (17/77). Ongoing mental health concerns were reported by 44/50 (88.0%), and educational/occupational outcomes varied widely. The study highlights the importance of careful screening, comprehensive biopsychosocial (including family) assessment, and holistic therapeutic support. Even in highly screened samples of children and adolescents seeking a GD diagnosis and gender-affirming medical care, outcome pathways follow a diverse range of possibilities.

4.
Diabetes Technol Ther ; 25(5): 356-362, 2023 05.
Article En | MEDLINE | ID: mdl-36802246

Objective: To explore the impact of missing data on the accuracy of continuous glucose monitoring (CGM) metrics collected for a 2-week period in a clinical trial. Research Design and Methods: Simulations were conducted to examine the effect of various patterns of missingness on the accuracy of CGM metrics as compared with a "complete" data set. The proportion of missing data, the "block size" in which the data were missing, and the missing mechanism were modified for each "scenario." The degree of agreement between simulated and "true" glycemic measures under each scenario was presented as R2. Results: Under all missing patterns, R2 declined as the proportion of missing data increased, however, as the "block size" of missing data increased, the percentage of missing data had a more pronounced effect on the agreement between measures. For a 14-day CGM data set to be considered representative for percentage time in range (%TIR), at least 70% of CGM data should be available over at least 10 days (R2 > 0.9). Skewed outcome measures, such as percentage time below range and coefficient of variation, were more affected by missing data than the less skewed measures (%TIR, percentage time above range, mean glucose). Conclusions: Both the degree and pattern of missing data impact upon the accuracy of recommended CGM-derived glycemic measures. In planning research, an understanding of patterns of missing data in the study population is required to gauge the likely effects of missing data on outcome accuracy. Trial registration number: Australian New Zealand Clinic Trials Registry ACTRN12616000753459.


Blood Glucose , Diabetes Mellitus, Type 1 , Humans , Glucose , Blood Glucose Self-Monitoring , Benchmarking , Australia
5.
NPJ Digit Med ; 5(1): 179, 2022 Dec 13.
Article En | MEDLINE | ID: mdl-36513770

Electronic medication management (eMM) systems are designed to improve safety, but there is little evidence of their effectiveness in paediatrics. This study assesses the short-term (first 70 days of eMM use) and long-term (one-year) effectiveness of an eMM system to reduce prescribing errors, and their potential and actual harm. We use a stepped-wedge cluster randomised controlled trial (SWCRCT) at a paediatric referral hospital, with eight clusters randomised for eMM implementation. We assess long-term effects from an additional random sample of medication orders one-year post-eMM. In the SWCRCT, errors that are potential adverse drug events (ADEs) are assessed for actual harm. The study comprises 35,260 medication orders for 4821 patients. Results show no significant change in overall prescribing error rates in the first 70 days of eMM use (incident rate ratio [IRR] 1.05 [95%CI 0.92-1.21], but a 62% increase (IRR 1.62 [95%CI 1.28-2.04]) in potential ADEs suggesting immediate risks to safety. One-year post-eMM, errors decline by 36% (IRR 0.64 [95%CI 0.56-0.72]) and high-risk medication errors decrease by 33% (IRR 0.67 [95%CI 0.51-0.88]) compared to pre-eMM. In all periods, dose error rates are more than double that of other error types. Few errors are associated with actual harm, but 71% [95%CI 50-86%] of patients with harm experienced a dose error. In the short-term, eMM implementation shows no improvement in error rates, and an increase in some errors. A year after eMM error rates significantly decline suggesting long-term benefits. eMM optimisation should focus on reducing dose errors due to their high frequency and capacity to cause harm.

6.
Diabet Med ; 39(9): e14907, 2022 09.
Article En | MEDLINE | ID: mdl-35757899

AIM: Hybrid closed-loop (HCL) therapy improves glycaemic control in adolescents with type 1 diabetes; however, little is known about their lived experience using these systems. The aim of this study was to explore the lived experiences of youth with type 1 diabetes using HCL therapy, and their parents, to provide insight into their lived experiences. METHODS: Adolescents and young adults aged 12-25 years, who used Medtronic MiniMed™ 670G HCL system during a 6-month randomised clinical trial, and their parents, were invited to participate in a semi-structured interview at the end of the study. Open-ended questions were used to explore the lived experiences of families using HCL. The interviews were audio-recorded, transcribed and analysed using thematic analysis to determine the main themes. RESULTS: In all, 17 young people with type 1 diabetes mean ± SD age: 17.5 ± 4.2 years, diabetes duration: 11.0 ± 4.9 years and HbA1c 64 ± 9 mmol/mol (8.0 ± 0.8%) and 10 parents were interviewed. Three themes were identified: (1) 'Developing confidence and trust in the system', (2) 'Reduction in anxiety' and (3) 'Issues with device'. They reported a positive experience using HCL, with improvements in glucose levels and increased independence with diabetes management. However, frustration around the number of alarms and notifications associated with the system were also identified as issues. CONCLUSION: Both youth and parents acknowledged the benefits of this first-generation HCL system in improving glycaemic outcomes and in providing flexibility and independence. These lived experiences provide valuable information in the introduction and provision of targeted education with HCL therapy.


Diabetes Mellitus, Type 1 , Adolescent , Adult , Blood Glucose/analysis , Blood Glucose Self-Monitoring , Diabetes Mellitus, Type 1/drug therapy , Humans , Hypoglycemic Agents/therapeutic use , Insulin/therapeutic use , Insulin Infusion Systems , Young Adult
8.
JAMA Pediatr ; 175(12): 1227-1235, 2021 12 01.
Article En | MEDLINE | ID: mdl-34633418

Importance: Hybrid closed-loop (HCL) therapy has improved glycemic control in children and adolescents with type 1 diabetes; however, the efficacy of HCL on glycemic and psychosocial outcomes has not yet been established in a long-term randomized clinical trial. Objective: To determine the percentage of time spent in the target glucose range using HCL vs current conventional therapies of continuous subcutaneous insulin infusion or multiple daily insulin injections with or without continuous glucose monitoring (CGM). Design, Setting, and Participants: This 6-month, multicenter, randomized clinical trial included 172 children and adolescents with type 1 diabetes; patients were recruited between April 18, 2017, and October 4, 2019, in Australia. Data were analyzed from July 25, 2020, to February 26, 2021. Interventions: Eligible participants were randomly assigned to either the control group for conventional therapy (continuous subcutaneous insulin infusion or multiple daily insulin injections with or without CGM) or the intervention group for HCL therapy. Main Outcomes and Measures: The primary outcome was the percentage of time in range (TIR) within a glucose range of 70 to 180 mg/dL, measured by 3-week masked CGM collected at the end of the study in both groups. Secondary outcomes included CGM metrics for hypoglycemia, hyperglycemia, and glycemic variability and psychosocial measures collected by validated questionnaires. Results: A total of 135 patients (mean [SD] age, 15.3 [3.1] years; 76 girls [56%]) were included, with 68 randomized to the control group and 67 to the HCL group. Patients had a mean (SD) diabetes duration of 7.7 (4.3) years and mean hemoglobin A1c of 64 (11) mmol/mol, with 110 participants (81%) receiving continuous subcutaneous insulin infusion and 72 (53%) receiving CGM. In the intention-to-treat analyses, TIR increased from a mean (SD) of 53.1% (13.0%) at baseline to 62.5% (12.0%) at the end of the study in the HCL group and from 54.6% (12.5%) to 56.1% (12.2%) in the control group, with a mean adjusted difference between the 2 groups of 6.7% (95% CI, 2.7%-10.8%; P = .002). Hybrid closed-loop therapy also reduced the time that patients spent in a hypoglycemic (<70 mg/dL) range (difference, -1.9%; 95% CI, -2.5% to -1.3%) and improved glycemic variability (coefficient of variation difference, -5.7%; 95% CI, -10.2% to -0.9%). Hybrid closed-loop therapy was associated with improved diabetes-specific quality of life (difference, 4.4 points; 95% CI, 0.4-8.4 points), with no change in diabetes distress. There were no episodes of severe hypoglycemia or diabetic ketoacidosis in either group. Conclusions and Relevance: In this randomized clinical trial, 6 months of HCL therapy significantly improved glycemic control and quality of life compared with conventional therapy in children and adolescents with type 1 diabetes. Trial Registration: ANZCTR identifier: ACTRN12616000753459.


Diabetes Mellitus, Type 1/psychology , Glycemic Control/methods , Psychosocial Functioning , Adolescent , Child , Diabetes Mellitus, Type 1/physiopathology , Female , Humans , Male , Outcome Assessment, Health Care
9.
Pharmacogenomics J ; 21(5): 594-607, 2021 10.
Article En | MEDLINE | ID: mdl-34045667

Recombinant human growth hormone (r-hGH) is used as a therapeutic agent for disorders of growth including growth hormone deficiency (GHD) and Turner syndrome (TS). Treatment is costly and current methods to model response are inexact. GHD (n = 71) and TS patients (n = 43) were recruited to study response to r-hGH over 5 years. Analysis was performed using 1219 genetic markers and baseline (pre-treatment) blood transcriptome. Random forest was used to determine predictive value of transcriptomic data associated with growth response. No genetic marker passed the stringency criteria for prediction. However, we identified an identical set of genes in both GHD and TS whose expression could be used to classify therapeutic response to r-hGH with a high accuracy (AUC > 0.9). Combining transcriptomic markers with clinical phenotype was shown to significantly reduce predictive error. This work could be translated into a single genomic test linked to a prediction algorithm to improve clinical management. Trial registration numbers: NCT00256126 and NCT00699855.


Human Growth Hormone/therapeutic use , Transcriptome/genetics , Child , Female , Gene Expression Profiling/methods , Genetic Markers/genetics , Growth Disorders/drug therapy , Growth Disorders/genetics , Human Growth Hormone/deficiency , Humans , Male , Prospective Studies , Treatment Outcome , Turner Syndrome/drug therapy , Turner Syndrome/genetics
10.
J Paediatr Child Health ; 57(6): 888-893, 2021 06.
Article En | MEDLINE | ID: mdl-33428304

AIM: Paediatric hypoglycaemia often requires specific investigations to determine aetiology. Samples from the time of hypoglycaemia may not be available and a diagnostic fasting test may be required. Additionally, fasting studies can determine safe fasting intervals and prolonged oral glucose challenges can assess hypoglycaemia due to abnormal post-prandial glucose handling. This audit reviewed the current utility and yield of fasting studies, prolonged oral glucose challenges and starch loads. METHODS: Retrospective audit of clinical record to determine purpose and outcome of tests performed at a Tertiary Paediatric Endocrine/Metabolic Testing Unit in Sydney, Australia, from 2013 to 2018 inclusive. RESULTS: One hundred and thirty-eight children (aged 3 weeks-17 years) underwent 170 tests: 122 fasting studies, 20 five-hour OGTTs, 22 uncooked corn starch loads and six modified waxy maize starch (Glycosade) loads. The majority were for diagnostic purposes (n = 113, 66%), with 57 (34%) to guide management in patients with known diagnoses. Following diagnostic studies, 35 (31%) patients received a pathological diagnosis, the most common of which (n = 19, 17%) was accelerated starvation. Hypoglycaemia developed in n = 15/113 (13%) during the diagnostic studies. Management studies helped determine length of safe fast, adjustment of medication or diet and document resolution of pathology. CONCLUSION: Fasting studies remain a safe and effective method to assist with diagnoses, confirm or exclude pathological causes of childhood hypoglycaemia and to guide management of known diagnoses in the paediatric population.


Hospitals, Pediatric , Hypoglycemia , Australia , Blood Glucose , Child , Humans , Hypoglycemia/diagnosis , Hypoglycemia/etiology , Retrospective Studies
11.
Front Psychol ; 11: 582688, 2020.
Article En | MEDLINE | ID: mdl-33510668

The current study examines patterns of attachment/self-protective strategies and rates of unresolved loss/trauma in children and adolescents presenting to a multidisciplinary gender service. Fifty-seven children and adolescents (8.42-15.92 years; 24 birth-assigned males and 33 birth-assigned females) presenting with gender dysphoria participated in structured attachment interviews coded using dynamic-maturational model (DMM) discourse analysis. The children with gender dysphoria were compared to age- and sex-matched children from the community (non-clinical group) and a group of school-age children with mixed psychiatric disorders (mixed psychiatric group). Information about adverse childhood experiences (ACEs), mental health diagnoses, and global level of functioning was also collected. In contrast to children in the non-clinical group, who were classified primarily into the normative attachment patterns (A1-2, B1-5, and C1-2) and who had low rates of unresolved loss/trauma, children with gender dysphoria were mostly classified into the high-risk attachment patterns (A3-4, A5-6, C3-4, C5-6, and A/C) (χ2 = 52.66; p < 0.001) and had a high rate of unresolved loss/trauma (χ2 = 18.64; p < 0.001). Comorbid psychiatric diagnoses (n = 50; 87.7%) and a history of self-harm, suicidal ideation, or symptoms of distress were also common. Global level of functioning was impaired (range 25-95/100; mean = 54.88; SD = 15.40; median = 55.00). There were no differences between children with gender dysphoria and children with mixed psychiatric disorders on attachment patterns (χ2 = 2.43; p = 0.30) and rates of unresolved loss and trauma (χ2 = 0.70; p = 0.40). Post hoc analyses showed that lower SES, family constellation (a non-traditional family unit), ACEs-including maltreatment (physical abuse, sexual abuse, emotional abuse, neglect, and exposure to domestic violence)-increased the likelihood of the child being classified into a high risk attachment pattern. Akin to children with other forms of psychological distress, children with gender dysphoria present in the context of multiple interacting risk factors that include at-risk attachment, unresolved loss/trauma, family conflict and loss of family cohesion, and exposure to multiple ACEs.

12.
J Paediatr Child Health ; 56(5): 742-745, 2020 05.
Article En | MEDLINE | ID: mdl-31849136

AIM: To examine the impact of changes to the endocrine/diabetes after-hours service model of care at a major tertiary children's hospital in Australia. The model aimed to enhance the independence of families and reduce dependency on after-hours calls to health professionals. METHODS: The after-hours activity was captured prospectively using an iPad with a customised FileMaker database. Data were collected for 9 months prior to and for 8 months after the implementation of a modified model of service. Questionnaires gathered information from endocrine junior medical officers (JMOs) and other hospital staff. Data on emergency department visits were analysed for presentations before and after the implementation of the service changes. RESULTS: Changes to the after-hours service resulted in a significant reduction in median calls from 9 (range 0-39) to 2 (range 0-7) per shift. The number of shifts with no calls increased from 2 to 24% and the number of shifts with <3 calls increased from 8 to 60%. Disturbed nights (calls between 10 pm and 6 am) decreased from 75 to 29%. Junior medical officer experience was positive and there was no perceivable increase in workload from in-hospital staff. The number of endocrine patients presenting to the emergency department did not change significantly following the implementation of the new after-hours service. CONCLUSION: This is the only Australian study to prospectively gather accurate on-call data in order to elucidate the impact of changing a hospital's after-hours endocrine/diabetes service to a model that enhanced family empowerment and independence. Historical 24-h on-call service models are not indispensable, and changes can improve sustainability without compromising patient care.


Diabetes Mellitus , Emergency Service, Hospital , Australia , Child , Diabetes Mellitus/therapy , Hospitals, Pediatric , Humans , Tertiary Care Centers
13.
Diabetes Res Clin Pract ; 159: 107989, 2020 Jan.
Article En | MEDLINE | ID: mdl-31866529
14.
Horm Res Paediatr ; 92(1): 1-14, 2019.
Article En | MEDLINE | ID: mdl-31514194

The Growth Hormone Research Society (GRS) convened a Workshop in March 2019 to evaluate the diagnosis and therapy of short stature in children. Forty-six international experts participated at the invitation of GRS including clinicians, basic scientists, and representatives from regulatory agencies and the pharmaceutical industry. Following plenary presentations addressing the current diagnosis and therapy of short stature in children, breakout groups discussed questions produced in advance by the planning committee and reconvened to share the group reports. A writing team assembled one document that was subsequently discussed and revised by participants. Participants from regulatory agencies and pharmaceutical companies were not part of the writing process. Short stature is the most common reason for referral to the pediatric endocrinologist. History, physical examination, and auxology remain the most important methods for understanding the reasons for the short stature. While some long-standing topics of controversy continue to generate debate, including in whom, and how, to perform and interpret growth hormone stimulation tests, new research areas are changing the clinical landscape, such as the genetics of short stature, selection of patients for genetic testing, and interpretation of genetic tests in the clinical setting. What dose of growth hormone to start, how to adjust the dose, and how to identify and manage a suboptimal response are still topics to debate. Additional areas that are expected to transform the growth field include the development of long-acting growth hormone preparations and other new therapeutics and diagnostics that may increase adult height or aid in the diagnosis of growth hormone deficiency.


Growth Disorders , Human Growth Hormone , Child , Growth Disorders/diagnosis , Growth Disorders/genetics , Growth Disorders/pathology , Growth Disorders/therapy , Human Growth Hormone/deficiency , Human Growth Hormone/therapeutic use , Humans
15.
J Paediatr Child Health ; 55(9): 1029-1037, 2019 Sep.
Article En | MEDLINE | ID: mdl-31257692

Prader-Willi syndrome (PWS) is a rare genetic condition with multi-system involvement. The literature was reviewed to describe neurodevelopment and the behavioural phenotype, endocrine and metabolic disorders and respiratory and sleep functioning. Implications for child and family quality of life were explored. Challenging behaviours contribute to poorer well-being and quality of life for both the child and caregiver. Recent evidence indicates healthy outcomes of weight and height can be achieved with growth hormone therapy and dietary restriction and should be the current target for all individuals with PWS. Gaps in the literature included therapies to manage challenging behaviours, as well as understanding the effects of growth hormone on respiratory and sleep function. New knowledge regarding the transition of children and families from schooling and paediatric health services to employment, accommodation and adult health services is also needed. Developing a national population-based registry could address these knowledge gaps and inform advocacy for support services that improve the well-being of individuals with PWS and their families.


Family/psychology , Personal Satisfaction , Prader-Willi Syndrome/physiopathology , Quality of Life , Adolescent , Child , Child, Preschool , Humans , Hyperphagia
16.
Diabetes Care ; 42(8): 1489-1495, 2019 08.
Article En | MEDLINE | ID: mdl-31167891

OBJECTIVE: This study compared bone health in youth with type 1 diabetes and celiac disease (CD) versus type 1 diabetes alone. RESEARCH DESIGN AND METHODS: This was a case-control study of 42 youth with coexisting type 1 diabetes and CD and 40 with type 1 diabetes matched for age, sex, diabetes duration, and HbA1c. Bone mineral density (BMD), bone mineral content (BMC), and BMC-to-lean tissue mass (LTM) ratio were measured using DXA and reported as z-scores for height. Total, trabecular, and cortical bone and muscle parameters were measured using peripheral quantitative computed tomography (pQCT) and reported as z-scores for age. RESULTS: Mean age at assessment was 14.3 ± 3.1 years; diabetes duration, 8.0 ± 3.5 years; HbA1c, 8.2 ± 1.5% (66 ± 5 mmol/mol); and 25-hydroxy vitamin D, 71 ± 21 nmol/L. Comparing youth with coexisting CD versus type 1 diabetes alone, DXA showed lower BMC-to-LTM ratio (0.37 ± 1.12 vs. 0.73 ± 2.23, P = 0.007) but no difference in total BMD. Youth with coexisting CD also had lower BMC-to-LTM ratio versus the general population (P = 0.04). Radial pQCT showed lower total BMC (-0.92 ± 1.40 vs. -0.26 ± 1.23, P = 0.03) despite similar bone and muscle cross-sectional area. In multivariable linear regression, lower BMC was associated with higher insulin dose (P = 0.03) but not HbA1c. CONCLUSIONS: Youth with both type 1 diabetes and CD have lower BMC relative to LTM and lower BMC, indicating abnormal trabecular and cortical bone development despite similar bone and muscle size. These findings suggest that the two conditions confer a lower bone turnover state. We recommend further examination of bone health in this population; future research should examine early interventions to improve bone health.


Bone Density/physiology , Cancellous Bone/physiopathology , Celiac Disease/physiopathology , Cortical Bone/physiopathology , Diabetes Mellitus, Type 1/physiopathology , Absorptiometry, Photon , Adolescent , Cancellous Bone/diagnostic imaging , Case-Control Studies , Celiac Disease/blood , Celiac Disease/complications , Child , Cortical Bone/diagnostic imaging , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/complications , Female , Humans , Linear Models , Male , Tomography, X-Ray Computed , Vitamin D/analogs & derivatives , Vitamin D/blood
17.
Diabetes Technol Ther ; 21(1): 28-34, 2019 01.
Article En | MEDLINE | ID: mdl-30585769

BACKGROUND: The Predictive Low-Glucose Management (PLGM) system suspends basal insulin when hypoglycemia is predicted and reduces hypoglycemia. The aim of this analysis was to explore the characteristics of automated insulin suspension and sensor glucose (SG) responses following PLGM-initiated pump suspension. RESEARCH DESIGN AND METHODS: Children and adolescents with type 1 diabetes used the Medtronic MiniMed™ 640G pump as part of a randomized controlled trial. Data collected on a subgroup of participants on PLGM (suspend before low enabled) from CareLink® Therapy Management Software were analyzed to explore the time and duration of PLGM-initiated pump suspension. Day and nighttime were defined as 06:00 am to 10:00 pm and 10:00 pm to 6:00 am, respectively. RESULTS: There were 20,183 suspend before low events in 8523 days (2.37 events/day). The mean suspend duration was 55.0 ± 32.7 min (day 50.0 ± 30.1, night 71.7 ± 35.1; P < 0.001). Although a 2-h pump suspension was more frequent at night (day 5%, night 18%), a patient-initiated resumption occurred more during day (day 34%, night 12%). SG values did not reach <3.5 and <3 mmol/L in 79% and 91% of the events, respectively. The 2-h SG following pump resumption was higher following autoresumption during the day (day vs. night 9.3 mmol/L vs. 8.4 mmol/L; P < 0.001). CONCLUSIONS: Longer suspends and fewer glycemic excursions occur at night compared with day. The higher glycemic daytime excursions could be due to carbohydrate consumption to increase glucose levels and highlights the need for health care professionals to educate patients about carbohydrate intake around pump suspension.


Blood Glucose/drug effects , Diabetes Mellitus, Type 1/drug therapy , Hypoglycemic Agents/administration & dosage , Insulin Infusion Systems , Insulin/administration & dosage , Adolescent , Blood Glucose Self-Monitoring , Child , Diabetes Mellitus, Type 1/blood , Female , Humans , Hypoglycemia/chemically induced , Hypoglycemia/prevention & control , Hypoglycemic Agents/adverse effects , Insulin/adverse effects , Male , Treatment Outcome
18.
Intern Med J ; 48(8): 999-1002, 2018 08.
Article En | MEDLINE | ID: mdl-30133980

Growth hormone (GH) replacement therapy was recently recommended by the Pharmaceutical Benefits Advisory Committee (PBAC) for listing on the Pharmaceutical Benefits Scheme for adults with severe GH deficiency and impaired quality of life. This approval was significant for two reasons. First, the application was initiated and coordinated by a health professional working group, who prepared a 'public interest' submission to PBAC. Second, it resulted in a recommendation to subsidise therapy for a rare disease after two prior rejections on the basis of uncertainty about efficacy and cost effectiveness. There are important lessons to learn about the power of professional groups to drive health policy and attain funding for rare diseases.


Cost-Benefit Analysis/economics , Hormone Replacement Therapy/economics , Human Growth Hormone/deficiency , Insurance, Pharmaceutical Services/economics , Rare Diseases/drug therapy , Rare Diseases/economics , Adult , Cost-Benefit Analysis/trends , Dwarfism, Pituitary/drug therapy , Dwarfism, Pituitary/economics , Hormone Replacement Therapy/trends , Humans , Insurance, Pharmaceutical Services/trends , Rare Diseases/epidemiology
19.
J Diabetes Sci Technol ; 12(3): 592-598, 2018 05.
Article En | MEDLINE | ID: mdl-29332422

BACKGROUND: Continuous glucose monitoring can improve glycemic outcomes in individuals with type 1 diabetes. However, the constant exposure to real-time glucose levels can sometimes lead the individual to make some risky choices to address the glycemic excursions. Hence, the purpose of this study was to explore the aberrant management behaviors of youth with type 1 diabetes on sensor-augmented pump therapy (SAPT). METHODS: Participants in a clinical trial using SAPT on Medtronic MiniMed™ 640G pump who experienced deteriorating glycemic control or unexplained hypoglycemia were identified by the health care professional. The pump and/or sensor data uploaded to CareLink™ Therapy Management Software were reviewed in these participants. RESULTS: Uncharacteristic management behaviors were identified in five adolescent males. Continuous exposure to high glucose levels resulted in obsessive behaviors displaying a perfectionistic attitude in two participants. Multiple boluses were delivered frequently as uneaten carbohydrates in participant 1 while participant 2 resorted to delivery of extra insulin by cannula fills. In contrast, participant 3 chose to remain hyperglycemic to avoid weight gain while participant 4 trusted the system and used sensor glucose readings for calibrations, with resultant deterioration in glycemic control in both participants. On the other hand, participant 5, due to mistrust in the pump suspend function, consumed carbohydrates with downward glucose trends with rebound hyperglycemia. CONCLUSIONS: Constant exposure to real-time data can lead to unsafe management responses in adolescents with the behavior influenced by trust or mistrust in the system. Adolescents should be empowered with problem-solving strategies for safe management.


Blood Glucose Self-Monitoring/psychology , Diabetes Mellitus, Type 1/drug therapy , Insulin Infusion Systems/psychology , Adolescent , Blood Glucose Self-Monitoring/methods , Humans , Male
20.
J Health Psychol ; 23(10): 1332-1342, 2018 09.
Article En | MEDLINE | ID: mdl-27338629

Managing type 1 diabetes mellitus is an ongoing and challenging process; we investigated children's experience of different treatment regimens. Interviews with 17 children (7-15 years) at two time points were analysed using the grounded theory approach. Illness phase and treatment regimen shaped how bodily cues were interpreted. Insulin pump therapy allowed children to listen to and trust their bodily cues rather than override. Shame was a barrier to support engagement. Different internalised and externalised views of type 1 diabetes mellitus emerged. Overall, children were insightful experts of their own experiences. Recommendations for psychological interventions would benefit from empirical testing.


Diabetes Mellitus, Type 1/psychology , Insulin Infusion Systems , Needles , Adolescent , Child , Clinical Protocols , Female , Grounded Theory , Humans , Interviews as Topic , Male , Qualitative Research
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