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1.
Curr Psychiatry Rep ; 2024 Sep 16.
Article in English | MEDLINE | ID: mdl-39278983

ABSTRACT

PURPOSE OF REVIEW: This paper summarizes the prevalence, impact, and presentation of ageism across multiple mental health care settings including inpatient, outpatient, long-term care, and criminal justice. Strategies for combating ageism are described. RECENT FINDINGS: Ageism is a common form of bias that has deleterious medical and psychosocial consequences for older adults. Ageism manifests in a variety of ways in mental health settings. Clinical, educational, and public policy strategies are recommended to combat ageism in mental health settings. Ageism remains pervasive in society and in mental health care settings. Ageism impacts healthcare trainees, healthcare providers, healthcare systems, and older adults themselves. Age-friendly practices and strategies for combating ageism exist and need broader dissemination.

2.
JAMA ; 332(12): 979-988, 2024 Sep 24.
Article in English | MEDLINE | ID: mdl-39215972

ABSTRACT

IMPORTANCE: Supplementing potassium in an effort to maintain high-normal serum concentrations is a widespread strategy used to prevent atrial fibrillation after cardiac surgery (AFACS), but is not evidence-based, carries risks, and is costly. OBJECTIVE: To determine whether a lower serum potassium concentration trigger for supplementation is noninferior to a high-normal trigger. DESIGN, SETTING, AND PARTICIPANTS: This open-label, noninferiority, randomized clinical trial was conducted at 23 cardiac surgical centers in the United Kingdom and Germany. Between October 20, 2020, and November 16, 2023, patients with no history of atrial dysrhythmias scheduled for isolated coronary artery bypass grafting (CABG) surgery were enrolled. The last study patient was discharged from the hospital on December 11, 2023. INTERVENTIONS: Patients were randomly assigned to a strategy of tight or relaxed potassium control (only supplementing if serum potassium concentration fell below 4.5 mEq/L or 3.6 mEq/L, respectively). Patients wore an ambulatory heart rhythm monitor, which was analyzed by a core laboratory masked to treatment assignment. MAIN OUTCOMES AND MEASURES: The prespecified primary end point was clinically detected and electrocardiographically confirmed new-onset AFACS in the first 120 hours after CABG surgery or until hospital discharge, whichever occurred first. All primary outcome events were validated by an event validation committee, which was masked to treatment assignment. Noninferiority of relaxed potassium control was defined as a risk difference for new-onset AFACS with associated upper bound of a 1-sided 97.5% CI of less than 10%. Secondary outcomes included other heart rhythm-related events, clinical outcomes, and cost related to the intervention. RESULTS: A total of 1690 patients (mean age, 65 years; 256 [15%] females) were randomized. The primary end point occurred in 26.2% of patients (n = 219) in the tight group and 27.8% of patients (n = 231) in the relaxed group, which is a risk difference of 1.7% (95% CI, -2.6% to 5.9%). There was no difference between the groups in the incidence of at least 1 AFACS episode detected by any means or by ambulatory heart rhythm monitor alone, non-AFACS dysrhythmias, in-patient mortality, or length of stay. Per-patient cost for purchasing and administering potassium was significantly lower in the relaxed group (mean difference, $111.89 [95% CI, $103.60-$120.19]; P <.001). CONCLUSIONS AND RELEVANCE: For AFACS prophylaxis, supplementation only when serum potassium concentration fell below 3.6 mEq/L was noninferior to the current widespread practice of supplementing potassium to maintain a serum potassium concentration greater than or equal to 4.5 mEq/L. The lower threshold of supplementation was not associated with any increase in dysrhythmias or adverse clinical outcomes. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04053816.


Subject(s)
Atrial Fibrillation , Coronary Artery Bypass , Postoperative Complications , Potassium , Aged , Female , Humans , Male , Middle Aged , Atrial Fibrillation/blood , Atrial Fibrillation/epidemiology , Atrial Fibrillation/etiology , Atrial Fibrillation/prevention & control , Coronary Artery Bypass/adverse effects , Dietary Supplements , Postoperative Complications/blood , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/prevention & control , Potassium/administration & dosage , Potassium/blood , United Kingdom/epidemiology , Germany/epidemiology , Prospective Studies , Incidence , Intention to Treat Analysis
3.
Lancet ; 396(10259): 1353-1361, 2020 10 24.
Article in English | MEDLINE | ID: mdl-32896294

ABSTRACT

BACKGROUND: Preoperative anaemia affects a high proportion of patients undergoing major elective surgery and is associated with poor outcomes. We aimed to test the hypothesis that intravenous iron given to anaemic patients before major open elective abdominal surgery would correct anaemia, reduce the need for blood transfusions, and improve patient outcomes. METHODS: In a double-blind, parallel-group randomised trial, we recruited adult participants identified with anaemia at preoperative hospital visits before elective major open abdominal surgery at 46 UK tertiary care centres. Anaemia was defined as haemoglobin less than 130 g/L for men and 120 g/L for women. We randomly allocated participants (1:1) via a secure web-based service to receive intravenous iron or placebo 10-42 days before surgery. Intravenous iron was administered as a single 1000 mg dose of ferric carboxymaltose in 100 mL normal saline, and placebo was 100 mL normal saline, both given as an infusion over 15 min. Unblinded study personnel prepared and administered the study drug; participants and other clinical and research staff were blinded to treatment allocation. Coprimary endpoints were risk of the composite outcome of blood transfusion or death, and number of blood transfusions from randomisation to 30 days postoperatively. The primary analysis included all randomly assigned patients with data available for the primary endpoints; safety analysis included all randomly assigned patients according to the treatment received. This study is registered, ISRCTN67322816, and is closed to new participants. FINDINGS: Of 487 participants randomly assigned to placebo (n=243) or intravenous iron (n=244) between Jan 6, 2014, and Sept 28, 2018, complete data for the primary endpoints were available for 474 (97%) individuals. Death or blood transfusion occurred in 67 (28%) of the 237 patients in the placebo group and 69 (29%) of the 237 patients in the intravenous iron group (risk ratio 1·03, 95% CI 0·78-1·37; p=0·84). There were 111 blood transfusions in the placebo group and 105 in the intravenous iron group (rate ratio 0·98, 95% CI 0·68-1·43; p=0·93). There were no significant differences between the two groups for any of the prespecified safety endpoints. INTERPRETATION: Preoperative intravenous iron was not superior to placebo to reduce need for blood transfusion when administered to patients with anaemia 10-42 days before elective major abdominal surgery. FUNDING: UK National Institute of Health Research Health Technology Assessment Program.


Subject(s)
Abdomen/surgery , Administration, Intravenous , Anemia/drug therapy , Iron/administration & dosage , Preoperative Care , Aged , Double-Blind Method , Elective Surgical Procedures , Female , Humans , Male , Treatment Outcome , United Kingdom
4.
Lancet ; 394(10216): 2263-2270, 2019 12 21.
Article in English | MEDLINE | ID: mdl-31836196

ABSTRACT

BACKGROUND: Irbesartan, a long acting selective angiotensin-1 receptor inhibitor, in Marfan syndrome might reduce aortic dilatation, which is associated with dissection and rupture. We aimed to determine the effects of irbesartan on the rate of aortic dilatation in children and adults with Marfan syndrome. METHODS: We did a placebo-controlled, double-blind randomised trial at 22 centres in the UK. Individuals aged 6-40 years with clinically confirmed Marfan syndrome were eligible for inclusion. Study participants were all given 75 mg open label irbesartan once daily, then randomly assigned to 150 mg of irbesartan (increased to 300 mg as tolerated) or matching placebo. Aortic diameter was measured by echocardiography at baseline and then annually. All images were analysed by a core laboratory blinded to treatment allocation. The primary endpoint was the rate of aortic root dilatation. This trial is registered with ISRCTN, number ISRCTN90011794. FINDINGS: Between March 14, 2012, and May 1, 2015, 192 participants were recruited and randomly assigned to irbesartan (n=104) or placebo (n=88), and all were followed for up to 5 years. Median age at recruitment was 18 years (IQR 12-28), 99 (52%) were female, mean blood pressure was 110/65 mm Hg (SDs 16 and 12), and 108 (56%) were taking ß blockers. Mean baseline aortic root diameter was 34·4 mm in the irbesartan group (SD 5·8) and placebo group (5·5). The mean rate of aortic root dilatation was 0·53 mm per year (95% CI 0·39 to 0·67) in the irbesartan group compared with 0·74 mm per year (0·60 to 0·89) in the placebo group, with a difference in means of -0·22 mm per year (-0·41 to -0·02, p=0·030). The rate of change in aortic Z score was also reduced by irbesartan (difference in means -0·10 per year, 95% CI -0·19 to -0·01, p=0·035). Irbesartan was well tolerated with no observed differences in rates of serious adverse events. INTERPRETATION: Irbesartan is associated with a reduction in the rate of aortic dilatation in children and young adults with Marfan syndrome and could reduce the incidence of aortic complications. FUNDING: British Heart Foundation, the UK Marfan Trust, the UK Marfan Association.


Subject(s)
Angiotensin II Type 1 Receptor Blockers/administration & dosage , Aorta/diagnostic imaging , Irbesartan/administration & dosage , Marfan Syndrome/drug therapy , Adolescent , Adult , Angiotensin II Type 1 Receptor Blockers/pharmacology , Aorta/drug effects , Child , Double-Blind Method , Drug Administration Schedule , Echocardiography , Female , Humans , Irbesartan/pharmacology , Male , Marfan Syndrome/diagnostic imaging , Treatment Outcome , United Kingdom , Young Adult
5.
Am J Geriatr Psychiatry ; 28(9): 989-992, 2020 09.
Article in English | MEDLINE | ID: mdl-32593495

ABSTRACT

OBJECTIVE: Social isolation and loneliness-common concerns in older adults-are exacerbated by the COVID-19 pandemic. To address social isolation in nursing home residents, the Yale School of Medicine Geriatrics Student Interest Group initiated a Telephone Outreach in the COVID-19 Outbreak (TOCO) Program that implements weekly phone calls with student volunteers. METHODS: Local nursing homes were contacted; recreation directors identified appropriate and interested elderly residents. Student volunteers were paired with elderly residents and provided phone call instructions. RESULTS: Three nursing homes opted to participate in the program. Thirty elderly residents were paired with student volunteers. Initial reports from recreation directors and student volunteers were positive: elderly residents look forward to weekly phone calls and express gratitude for social connectedness. CONCLUSIONS: The TOCO program achieved initial success and promotes the social wellbeing of nursing home residents. We hope to continue this program beyond the COVID-19 pandemic in order to address this persistent need in a notably vulnerable patient population.


Subject(s)
Community-Institutional Relations , Coronavirus Infections/psychology , Nursing Homes , Pneumonia, Viral/psychology , Social Isolation/psychology , Telephone , Volunteers , Aged , Betacoronavirus , COVID-19 , Connecticut , Humans , Pandemics , SARS-CoV-2 , Students, Medical
6.
Curr Opin Neurol ; 30(1): 114-124, 2017 02.
Article in English | MEDLINE | ID: mdl-27898583

ABSTRACT

PURPOSE OF REVIEW: Studies investigating postnatal brain growth disorders inform the biology underlying the development of human brain circuitry. This research is becoming increasingly important for the diagnosis and treatment of childhood neurodevelopmental disorders, including autism and related disorders. Here, we review recent research on typical and abnormal postnatal brain growth and examine potential biological mechanisms. RECENT FINDINGS: Clinically, brain growth disorders are heralded by diverging head size for a given age and sex, but are more precisely characterized by brain imaging, post-mortem analysis, and animal model studies. Recent neuroimaging and molecular biological studies on postnatal brain growth disorders have broadened our view of both typical and pathological postnatal neurodevelopment. Correlating gene and protein function with brain growth trajectories uncovers postnatal biological mechanisms, including neuronal arborization, synaptogenesis and pruning, and gliogenesis and myelination. Recent investigations of childhood neurodevelopmental and neurodegenerative disorders highlight the underlying genetic programming and experience-dependent remodeling of neural circuitry. SUMMARY: To understand typical and abnormal postnatal brain development, clinicians and researchers should characterize brain growth trajectories in the context of neurogenetic syndromes. Understanding mechanisms and trajectories of postnatal brain growth will aid in differentiating, diagnosing, and potentially treating neurodevelopmental disorders.


Subject(s)
Brain Diseases/genetics , Brain/growth & development , Brain/pathology , Adolescent , Brain Diseases/pathology , Child , Child, Preschool , Gene Expression Regulation , Humans , Infant , Infant, Newborn , Neuroimaging
7.
Bipolar Disord ; 14(4): 432-41, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22524493

ABSTRACT

OBJECTIVES: Convergent evidence supports limbic, anterior paralimbic, and prefrontal cortex (PFC) abnormalities in emotional processing in bipolar disorder (BD) and suggests that some abnormalities are mood-state dependent and others persist into euthymia. However, few studies have assessed elevated, depressed, and euthymic mood states while individuals processed emotional stimuli of varying valence to investigate trait- and state-related neural system responses. Here, regional brain responses to positive, negative, and neutral emotional stimuli were assessed in individuals with BD during elevated, depressed, and euthymic mood states. METHODS: One hundred and thirty-four subjects participated in functional magnetic resonance imaging scanning while processing faces depicting happy, fearful, and neutral expressions: 76 with BD (18 in elevated mood states, 19 depressed, 39 euthymic) and 58 healthy comparison (HC) individuals. Analyses were performed for BD trait- and mood state-related features. RESULTS: Ventral anterior cingulate cortex (VACC), orbitofrontal cortex (OFC), and ventral striatum responses to happy and neutral faces were decreased in the BD group, compared to the HC group, and were not influenced by mood state. Elevated mood states were associated with decreased right rostral PFC activation to fearful and neutral faces, and depression was associated with increased left OFC activation to fearful faces. CONCLUSIONS: The findings suggest that abnormal VACC, OFC, and ventral striatum responses to happy and neutral stimuli are trait features of BD. Acute mood states may be associated with additional lateralized abnormalities of diminished right rostral PFC responses to fearful and neutral stimuli in elevated states and increased left OFC responses to fearful stimuli in depressed states.


Subject(s)
Basal Ganglia/physiopathology , Bipolar Disorder/physiopathology , Facial Expression , Gyrus Cinguli/physiopathology , Prefrontal Cortex/physiopathology , Adult , Affect , Bipolar Disorder/psychology , Case-Control Studies , Female , Functional Neuroimaging , Humans , Magnetic Resonance Imaging , Male , Middle Aged
8.
Psychiatr Clin North Am ; 45(4): 765-777, 2022 12.
Article in English | MEDLINE | ID: mdl-36396278

ABSTRACT

The older adult population in the United States is poised to reach 83.7 million by 2050, and up to 20% will suffer from cognitive and mental illnesses. We do not have the workforce available to meet this need; therefore, general psychiatrists will care for many older psychiatric patients. Enhancing learning opportunities during general medical education and residency could improve the knowledge of general psychiatrists and encourage recruitment into geriatric psychiatry. This article outlines geriatric psychiatry education in medical school, residency, and geriatric psychiatry fellowship with suggestions for recruitment into the field, along with recommendations for enhanced learning for general psychiatrists.


Subject(s)
Internship and Residency , Psychiatry , Students, Medical , Humans , United States , Aged , Geriatric Psychiatry , Psychiatry/education , Workforce
9.
J Pain Symptom Manage ; 62(4): 778-784, 2021 10.
Article in English | MEDLINE | ID: mdl-33587993

ABSTRACT

CONTEXT: Advance care planning remains underutilized. A better understanding of the role of education in promoting engagement is needed. OBJECTIVES: To examine advance care planning knowledge and its relationship to engagement in middle-aged and older adults. METHODS: This cross-sectional study utilized baseline data from 921 participants age ≥55 years enrolled in the STAMP randomized controlled trial, including a knowledge scale consisting of seven questions regarding the purpose and mechanisms of advance care planning and measures of participation. RESULTS: Only 11.9% of participants answered all 7 questions correctly, and 25.6% of participants answered ≤3 correctly (defined as "low knowledge"). Low knowledge was independently associated with male gender (odds ratio [OR] 2.1, 95% confidence interval [CI]: 1.5, 3.0), non-white race (OR 1.5, 95% CI: 1.1, 2.2), older age (OR 2.2, 95% CI: 1.4, 3.4), lower income (OR 1.5, 95% CI: 1.1, 2.1), and lower education level (OR 2.9, 95% CI: 2.0, 4.1). Higher knowledge was independently associated with communicating with a loved one about quality versus quantity of life (OR 1.7, 95% CI: 1.2, 2.4) and with living will completion (OR 1.6, 95% CI: 1.0, 2.5), but not with healthcare agent assignment. Factors including race and education remained associated with engagement after accounting for knowledge. CONCLUSION: Knowledge deficits regarding advance care planning are common and associated with the same sociodemographic factors linked to other healthcare disparities. While improving knowledge is an important component of intervention, it is unlikely sufficient in and of itself to increase engagement.


Subject(s)
Advance Care Planning , Aged , Cross-Sectional Studies , Humans , Living Wills , Male , Middle Aged
10.
Sci Transl Med ; 13(580)2021 02 10.
Article in English | MEDLINE | ID: mdl-33568516

ABSTRACT

Christianson syndrome (CS), an X-linked neurological disorder characterized by postnatal attenuation of brain growth (postnatal microcephaly), is caused by mutations in SLC9A6, the gene encoding endosomal Na+/H+ exchanger 6 (NHE6). To hasten treatment development, we established induced pluripotent stem cell (iPSC) lines from patients with CS representing a mutational spectrum, as well as biologically related and isogenic control lines. We demonstrated that pathogenic mutations lead to loss of protein function by a variety of mechanisms: The majority of mutations caused loss of mRNA due to nonsense-mediated mRNA decay; however, a recurrent, missense mutation (the G383D mutation) had both loss-of-function and dominant-negative activities. Regardless of mutation, all patient-derived neurons demonstrated reduced neurite growth and arborization, likely underlying diminished postnatal brain growth in patients. Phenotype rescue strategies showed mutation-specific responses: A gene transfer strategy was effective in nonsense mutations, but not in the G383D mutation, wherein residual protein appeared to interfere with rescue. In contrast, application of exogenous trophic factors (BDNF or IGF-1) rescued arborization phenotypes across all mutations. These results may guide treatment development in CS, including gene therapy strategies wherein our data suggest that response to treatment may be dictated by the class of mutation.


Subject(s)
Induced Pluripotent Stem Cells , Microcephaly , Ataxia , Epilepsy , Genetic Diseases, X-Linked , Humans , Intellectual Disability , Microcephaly/genetics , Mutation/genetics , Neurons , Ocular Motility Disorders
11.
Schizophr Bull ; 46(6): 1520-1523, 2020 12 01.
Article in English | MEDLINE | ID: mdl-32432706

ABSTRACT

Hallucinations-while often considered an indication of mental illness-are commonly experienced by those without a need for clinical care. These nonclinical voice-hearers offer an opportunity to investigate hallucinations in the absence of confounds inherent to the clinical state. Recent work demonstrates an association between auditory verbal hallucinations (AVH) and structural variability in paracingulate sulcus (PCS) of medial prefrontal cortex in a clinical population. However, before PCS length may be considered a biomarker for clinical hallucination risk, it is necessary to investigate PCS structure in a nonclinical population of voice-hearers with AVH phenomenology similar to those of their clinical counterparts. In the current study, PCS length was measured from T1-weighted structural MRI scans of four groups of participants: (1) voice-hearers with a psychotic disorder (n = 15); (2) voice-hearers without a psychotic disorder (n = 15); (3) nonvoice-hearers with a psychotic disorder (n = 14); and (4) nonvoice-hearers without a psychotic disorder (n = 15). There was a main effect of AVH status-but not psychosis-on right PCS length, with no interaction of AVH and psychosis. Participants with AVH exhibited reduced right PCS length compared to participants without AVH (mean reduction = 8.8 mm, P < 0.05). While past studies have demonstrated decreased PCS length in clinical voice-hearers, ours is the first demonstration that shorter right PCS extends to nonclinical voice-hearers. Our findings support the hypothesis that differences in PCS length are related to the propensity to hear voices and not to illness, consistent with a continuum model of voice-hearing.


Subject(s)
Hallucinations/pathology , Prefrontal Cortex/pathology , Psychotic Disorders/pathology , Adult , Hallucinations/diagnostic imaging , Humans , Magnetic Resonance Imaging , Prefrontal Cortex/diagnostic imaging , Psychotic Disorders/diagnostic imaging
13.
Resuscitation ; 115: 185-191, 2017 06.
Article in English | MEDLINE | ID: mdl-28174052

ABSTRACT

BACKGROUND: Wide variation exists in inter-hospital survival from out-of-hospital cardiac arrest (OHCA). Regionalisation of care into cardiac arrest centres (CAC) may improve this. We report a pilot randomised trial of expedited transfer to a CAC following OHCA without ST-elevation. The objective was to assess the feasibility of performing a large-scale randomised controlled trial. METHODS: Adult witnessed ventricular fibrillation OHCA of presumed cardiac cause were randomised 1:1 to either: (1) treatment: comprising expedited transfer to a CAC for goal-directed therapy including access to immediate reperfusion, or (2) control: comprising current standard of care involving delivery to the geographically closest hospital. The feasibility of randomisation, protocol adherence and data collection of the primary (30-day all-cause mortality) and secondary (cerebral performance category (CPC)) and in-hospital major cardiovascular and cerebrovascular events (MACCE) clinical outcome measures were assessed. RESULTS: Between November 2014 and April 2016, 118 cases were screened, of which 63 patients (53%) met eligibility criteria and 40 of the 63 patients (63%) were randomised. There were no protocol deviations in the treatment arm. Data collection of primary and secondary outcomes was achieved in 83%. There was no difference in baseline characteristics between the groups: 30-day mortality (Intervention 9/18, 50% vs. Control 6/15, 40%; P=0.73), CPC 1/2 (Intervention: 9/18, 50% vs. Control 7/14, 50%; P>0.99) or MACCE (Intervention: 9/18, 50% vs. Control 6/15, 40%; P=0.73). CONCLUSIONS: These findings support the feasibility and acceptability of conducting a large-scale randomised controlled trial of expedited transfer to CAC following OHCA to address a remaining uncertainty in post-arrest care.


Subject(s)
Hospitals, Special , Out-of-Hospital Cardiac Arrest/therapy , Patient Transfer , Ventricular Fibrillation/therapy , Aged , Cardiopulmonary Resuscitation , Case-Control Studies , Feasibility Studies , Female , Humans , Intention to Treat Analysis , Male , Middle Aged , Out-of-Hospital Cardiac Arrest/etiology , Out-of-Hospital Cardiac Arrest/mortality , Outcome and Process Assessment, Health Care , Pilot Projects , Time Factors , Ventricular Fibrillation/complications
15.
Neurotherapeutics ; 12(3): 553-71, 2015 Jul.
Article in English | MEDLINE | ID: mdl-26105128

ABSTRACT

Autism spectrum disorder (ASD) is a group of highly genetic neurodevelopmental disorders characterized by language, social, cognitive, and behavioral abnormalities. ASD is a complex disorder with a heterogeneous etiology. The genetic architecture of autism is such that a variety of different rare mutations have been discovered, including rare monogenic conditions that involve autistic symptoms. Also, de novo copy number variants and single nucleotide variants contribute to disease susceptibility. Finally, autosomal recessive loci are contributing to our understanding of inherited factors. We will review the progress that the field has made in the discovery of these rare genetic variants in autism. We argue that mutation discovery of this sort offers an important opportunity to identify neurodevelopmental mechanisms in disease. The hope is that these mechanisms will show some degree of convergence that may be amenable to treatment intervention.


Subject(s)
Autism Spectrum Disorder/genetics , Mutation , Neurodevelopmental Disorders/genetics , Autism Spectrum Disorder/physiopathology , Brain/metabolism , Brain/physiopathology , Genetic Predisposition to Disease , Humans , Neurodevelopmental Disorders/physiopathology
16.
Health Technol Assess ; 18(26): 1-210, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24780450

ABSTRACT

BACKGROUND: Early research in adults admitted to intensive care suggested that tight control of blood glucose during acute illness can be associated with reductions in mortality, length of hospital stay and complications such as infection and renal failure. Prior to our study, it was unclear whether or not children could also benefit from tight control of blood glucose during critical illness. OBJECTIVES: This study aimed to determine if controlling blood glucose using insulin in paediatric intensive care units (PICUs) reduces mortality and morbidity and is cost-effective, whether or not admission follows cardiac surgery. DESIGN: Randomised open two-arm parallel group superiority design with central randomisation with minimisation. Analysis was on an intention-to-treat basis. Following random allocation, care givers and outcome assessors were no longer blind to allocation. SETTING: The setting was 13 English PICUs. PARTICIPANTS: Patients who met the following criteria were eligible for inclusion: ≥ 36 weeks corrected gestational age; ≤ 16 years; in the PICU following injury, following major surgery or with critical illness; anticipated treatment > 12 hours; arterial line; mechanical ventilation; and vasoactive drugs. Exclusion criteria were as follows: diabetes mellitus; inborn error of metabolism; treatment withdrawal considered; in the PICU > 5 consecutive days; and already in CHiP (Control of Hyperglycaemia in Paediatric intensive care). INTERVENTION: The intervention was tight glycaemic control (TGC): insulin by intravenous infusion titrated to maintain blood glucose between 4.0 and 7.0 mmol/l. CONVENTIONAL MANAGEMENT (CM): This consisted of insulin by intravenous infusion only if blood glucose exceeded 12.0 mmol/l on two samples at least 30 minutes apart; insulin was stopped when blood glucose fell below 10.0 mmol/l. MAIN OUTCOME MEASURES: The primary outcome was the number of days alive and free from mechanical ventilation within 30 days of trial entry (VFD-30). The secondary outcomes comprised clinical and economic outcomes at 30 days and 12 months and lifetime cost-effectiveness, which included costs per quality-adjusted life-year. RESULTS: CHiP recruited from May 2008 to September 2011. In total, 19,924 children were screened and 1369 eligible patients were randomised (TGC, 694; CM, 675), 60% of whom were in the cardiac surgery stratum. The randomised groups were comparable at trial entry. More children in the TGC than in the CM arm received insulin (66% vs. 16%). The mean VFD-30 was 23 [mean difference 0.36; 95% confidence interval (CI) -0.42 to 1.14]. The effect did not differ among prespecified subgroups. Hypoglycaemia occurred significantly more often in the TGC than in the CM arm (moderate, 12.5% vs. 3.1%; severe, 7.3% vs. 1.5%). Mean 30-day costs were similar between arms, but mean 12-month costs were lower in the TGC than in CM arm (incremental costs -£3620, 95% CI -£7743 to £502). For the non-cardiac surgery stratum, mean costs were lower in the TGC than in the CM arm (incremental cost -£9865, 95% CI -£18,558 to -£1172), but, in the cardiac surgery stratum, the costs were similar between the arms (incremental cost £133, 95% CI -£3568 to £3833). Lifetime incremental net benefits were positive overall (£3346, 95% CI -£11,203 to £17,894), but close to zero for the cardiac surgery stratum (-£919, 95% CI -£16,661 to £14,823). For the non-cardiac surgery stratum, the incremental net benefits were high (£11,322, 95% CI -£15,791 to £38,615). The probability that TGC is cost-effective is relatively high for the non-cardiac surgery stratum, but, for the cardiac surgery subgroup, the probability that TGC is cost-effective is around 0.5. Sensitivity analyses showed that the results were robust to a range of alternative assumptions. CONCLUSIONS: CHiP found no differences in the clinical or cost-effectiveness of TGC compared with CM overall, or for prespecified subgroups. A higher proportion of the TGC arm had hypoglycaemia. This study did not provide any evidence to suggest that PICUs should stop providing CM for children admitted to PICUs following cardiac surgery. For the subgroup not admitted for cardiac surgery, TGC reduced average costs at 12 months and is likely to be cost-effective. Further research is required to refine the TGC protocol to minimise the risk of hypoglycaemic episodes and assess the long-term health benefits of TGC. TRIAL REGISTRATION: Current Controlled Trials ISRCTN61735247. FUNDING: This project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 18, No. 26. See the NIHR Journals Library website for further project information.


Subject(s)
Cost-Benefit Analysis , Hyperglycemia/drug therapy , Hypoglycemic Agents/economics , Insulin/economics , Intensive Care Units, Pediatric/economics , Adolescent , Child , Child, Preschool , England , Female , Health Care Costs/statistics & numerical data , Humans , Hyperglycemia/economics , Hypoglycemic Agents/therapeutic use , Infant , Insulin/therapeutic use , Male , Outcome Assessment, Health Care , Surveys and Questionnaires
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