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1.
Diabetes Obes Metab ; 25(5): 1203-1212, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36594522

RESUMO

AIMS: To investigate a prebiotic fibre-enriched nutritional formula on health-related quality of life and metabolic control in type 2 diabetes. MATERIALS AND METHODS: This was a 12-week, double-blind, placebo-controlled study with an unblinded dietary advice only comparator arm. Participants were randomized 2:1:1 to a prebiotic fibre-enriched nutritional formula (Active), a placebo fibre-absent nutritional formula (Placebo), or non-blinded dietary advice alone (Diet). Primary endpoint was change in core Type 2 Diabetes Distress Assessment System (cT2-DDAS) at week 12. Glycated haemoglobin (HbA1c) change was a key secondary endpoint. RESULTS: In total, 192 participants were randomized. Mean age was 54.3 years, HbA1c 7.8%, and body mass index 35.9 kg/m2 . At week 12, cT2-DDAS reduced significantly in Active versus Placebo (-0.4, p = .03), and HbA1c was reduced significantly in Active vs Placebo (-0.64%, p = .01). Gut microbiome sequencing revealed that the relative abundance of two species of butyrate-producing bacteria (Roseburia faecis and Anaerostipes hadrus) increased significantly in Active vs. Placebo. CONCLUSIONS: A microbiome-targeting nutritional formula significantly improved cT2-DDAS and HbA1c, suggesting the potential for prebiotic fibre as a complement to lifestyle and/or pharmaceutical interventions for managing type 2 diabetes.


Assuntos
Diabetes Mellitus Tipo 2 , Microbioma Gastrointestinal , Humanos , Pessoa de Meia-Idade , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hemoglobinas Glicadas , Qualidade de Vida , Prebióticos , Método Duplo-Cego , Hipoglicemiantes/uso terapêutico
2.
J Gen Intern Med ; 37(1): 95-103, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34109545

RESUMO

BACKGROUND: Given persistent gaps in coordination of care for medically complex primary care patients, efficient strategies are needed to promote better care coordination. OBJECTIVE: The Coordination Toolkit and Coaching project compared two toolkit-based strategies of differing intensity to improve care coordination at VA primary care clinics. DESIGN: Multi-site, cluster-randomized QI initiative. PARTICIPANTS: Twelve VA primary care clinics matched in 6 pairs. INTERVENTIONS: We used a computer-generated allocation sequence to randomize clinics within each pair to two implementation strategies. Active control clinics received an online toolkit with evidence-based tools and QI coaching manual. Intervention clinics received the online toolkit plus weekly assistance from a distance coach for 12 months. MAIN MEASURES: We quantified patient experience of general care coordination using the Health Care System Hassles Scale (primary outcome) mailed at baseline and 12-month follow-up to serial cross-sectional patient samples. We measured the difference-in-difference (DiD) in clinic-level-predicted mean counts of hassles between coached and non-coached clinics, adjusting for clustering and patient characteristics using zero-inflated negative binomial regression and bootstrapping to obtain 95% confidence intervals. Other measures included care coordination QI projects attempted, tools adopted, and patient-reported exposure to projects. KEY RESULTS: N = 2,484 (49%) patients completed baseline surveys and 2,481 (48%) completed follow-ups. Six coached clinics versus five non-coached clinics attempted QI projects. All coached clinics versus two non-coached clinics attempted more than one project or projects that were multifaceted (i.e., involving multiple components addressing a common goal). Five coached versus three non-coached clinics used 1-2 toolkit tools. Both the coached and non-coached clinics experienced pre-post reductions in hassle counts over the study period (- 0.42 (- 0.76, - 0.08) non-coached; - 0.40 (- 0.75, - 0.06) coached). However, the DiD (0.02 (- 0.47, 0.50)) was not statistically significant; coaching did not improve patient experience of care coordination relative to the toolkit alone. CONCLUSION: Although coached clinics attempted more or more complex QI projects and used more tools than non-coached clinics, coaching provided no additional benefit versus the online toolkit alone in patient-reported outcomes. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT03063294.


Assuntos
Tutoria , Melhoria de Qualidade , Estudos Transversais , Humanos , Avaliação de Resultados da Assistência ao Paciente , Atenção Primária à Saúde
3.
Telemed J E Health ; 27(9): 1003-1010, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33275527

RESUMO

Background: Prior studies have posited poor patient adherence to remote patient monitoring as the reason for observed lack of benefits. Introduction: The purpose of this study was to examine the relationship between average adherence to the daily use of home telehealth (HT) and emergency room (ER) visits in Veterans with heart failure. Materials and Methods: This was a retrospective study using administrative data of Veterans with heart failure enrolled in Veterans Affairs (VA) HT Program in the first half of 2014. Zero-inflated negative binomial regression was used to determine which predictors affect the probability of having an ER visit and the number of ER visits. Results: The final sample size was 3,449 with most being white and male. There were fewer ER visits after HT enrollment (mean ± standard deviation of 1.85 ± 2.8) compared with the year before (2.2 ± 3.4). Patient adherence was not significantly associated with ER visits. Age and being from a racial minority group (not white or black) and belonging to a large HT program were associated with having an ER visit. Being in poorer health was associated with higher expected count of ER visits. Discussion: Subgroups of patients (e.g., with depression, sicker, or from a racial minority group) may benefit from added interventions to decrease ER use. Conclusions: This study found that adherence was not associated with ER visits. Reasons other than adherence should be considered when looking at ER use in patients with heart failure enrolled in remote patient monitoring programs.


Assuntos
Insuficiência Cardíaca , Telemedicina , Veteranos , Serviço Hospitalar de Emergência , Insuficiência Cardíaca/terapia , Humanos , Masculino , Estudos Retrospectivos , Estados Unidos
4.
Nurs Outlook ; 69(2): 159-166, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33279151

RESUMO

BACKGROUND: Daily use of home telehealth (HT) technologies decreases over time. Barriers to continued use are unclear. PURPOSE: To examine predictors of drop-out from HT in Veterans with heart failure. METHODS: Data for Veterans with heart failure enrolled in the Veterans Affairs HT Program were analyzed using a mixed effects Cox regression model to determine risk of dropping-out over a 1-year period. FINDINGS: Older (hazard ratio [HR] 1.01), sicker (prior hospital readmission [HR 1.39]), higher probability of hospital admission/death [HR 1.23], functional impairments [1.14]) and white Veterans (compared to black; HR 1.41) had higher risk of drop-out in HT Programs. Users of VA's online patient portal (HR 0.90) had lower risk of drop-out. DISCUSSION: Older and sicker patients are at most risk of stopping HT use, yet use of a patient portal shows promise in improving continued use. Interventions targeting patients at high risk for HT discontinuation are needed to promote ongoing engagement.


Assuntos
Insuficiência Cardíaca/terapia , Telemedicina/normas , Cooperação e Adesão ao Tratamento/psicologia , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Insuficiência Cardíaca/psicologia , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Telemedicina/instrumentação , Telemedicina/métodos , Cooperação e Adesão ao Tratamento/estatística & dados numéricos , Estados Unidos , United States Department of Veterans Affairs/organização & administração , United States Department of Veterans Affairs/estatística & dados numéricos
5.
Stroke ; 51(10): 2910-2917, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32912091

RESUMO

BACKGROUND AND PURPOSE: Self-management programs may improve quality of life and self-efficacy for stroke survivors, but participation is low. In a randomized controlled trial of a complex, multidisciplinary, team-based secondary stroke prevention intervention, we offered participants Chronic Disease Self-Management Program (CDSMP) workshops in addition to clinic visits and home visits. To enhance participation, workshops were facilitated by community health workers who were culturally and linguistically concordant with most participants and scheduled CDSMP sessions at convenient venues and times. Over time, we implemented additional strategies such as free transportation and financial incentives. In this study, we aimed to determine factors associated with CDSMP participation and attendance. METHODS: From 2014 to 2018, 18 CDSMP workshop series were offered to 241 English and Spanish-speaking individuals (age ≥40 years) with recent stroke or transient ischemic attack. Zero-inflated Poisson regression was used to identify factors associated with participation and attendance (ie, number of sessions attended) in CDSMP. Missing values were imputed using multiple imputation methods. RESULTS: Nearly one-third (29%) of intervention subjects participated in CDSMP. Moderate disability and more clinic/home visits were associated with participation. Participants with higher numbers of clinic and home visits (incidence rate ratio [IRR], 1.06 [95% CI, 1.01-1.12]), severe (IRR, 2.34 [95% CI, 1.65-3.31]), and moderately severe disability (IRR, 1.55 [95% CI, 1.07-2.23]), and who enrolled later in the study (IRR, 1.12 [95% CI, 1.08-1.16]) attended more sessions. Individuals with higher chaos scores attended fewer sessions (IRR, 0.97 [95% CI, 0.95-0.99]). CONCLUSIONS: Less than one-third of subjects enrolled in the SUCCEED (Secondary Stroke Prevention by Uniting Community and Chronic Care Model Teams Early to End Disparities) intervention participated in CDSMP; however, participation improved as transportation and financial barriers were addressed. Strategies to address social determinants of health contributing to chaos and engage individuals in healthcare may facilitate attendance. Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01763203.


Assuntos
Ataque Isquêmico Transitório/prevenção & controle , Qualidade de Vida , Autogestão , Acidente Vascular Cerebral/prevenção & controle , Idoso , Doença Crônica/prevenção & controle , Doença Crônica/psicologia , Feminino , Humanos , Ataque Isquêmico Transitório/psicologia , Masculino , Pessoa de Meia-Idade , Prevenção Secundária , Autoeficácia , Acidente Vascular Cerebral/psicologia
6.
J Gerontol Nurs ; 46(7): 26-34, 2020 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-32597998

RESUMO

The current retrospective cohort study uses Department of Veterans Affairs (VA) clinical and facility data of Veterans with heart failure enrolled in the VA Home Tele-health (HT) Program. General estimating equations with facility as a covariate were used to model percent average adherence at 1, 3, 6, and 12 months post-enrollment. Most HT patients were White, male, and of older age (mean = 71 years). Average adherence increased the longer patients remained in the HT program. Number of weekly reports of HT use, not having depression, and being of older age were all associated with higher adherence. Compared to White Veterans, Black and other non-White Veterans had lower adherence. These findings identify subgroups of patients (e.g., those with depression, of younger age, non-White) that may benefit from additional efforts to improve adherence to HT technologies. [Journal of Gerontological Nursing, 46(7), 26-34.].


Assuntos
Insuficiência Cardíaca/terapia , Cooperação do Paciente/estatística & dados numéricos , Telemedicina/estatística & dados numéricos , Veteranos/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Serviços de Assistência Domiciliar , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Estados Unidos , United States Department of Veterans Affairs
7.
Cardiovasc Diabetol ; 18(1): 77, 2019 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-31174526

RESUMO

BACKGROUND: Microvascular blood flow (MBF) impairment in patients with lower extremity arterial disease (LEAD) is associated with more severe major adverse limb events (MALE). The contribution of ticagrelor, a P2Y12 antagonist and an adenosine enhancer, on blood viscosity (BV) and BV-dependent MBF in LEAD is unknown. The aim of the trial is to investigate the effects of ticagrelor on BV, and explore the association of BV-dependent MBF in participants with LEAD and type 2 diabetes (T2DM). METHODS: Randomized, double-blind, double-dummy, crossover trial design that compares treatment with aspirin 81 mg/ticagrelor placebo, aspirin 81 mg/ticagrelor 90 mg twice daily and aspirin placebo/ticagrelor 90 mg twice daily on high-shear (300 s-1) and low-shear (5 s-1) BV, and laser Doppler flowmetry (LDF) in the dorsum of the feet of participants with T2DM. RESULTS: We randomized 70 (45% female) participants aged (mean ± SD) 72 ± 9 years. The duration of LEAD was 12.3 ± 10.3 years, and 96.9% reported intermittent claudication symptoms. Use of statins was 93% (high-intensity 43%, moderate intensity 49%), renin-angiotensin-aldosterone system inhibitors (75%) and beta-blockers (61%). Treatment with ticagrelor with or without aspirin reduced high-shear BV by 5%, in both cases, while aspirin monotherapy increased high-shear BV by 3.4% (p < 0.0001). Ticagrelor with or without aspirin reduced low-shear BV by 14.2% and 13.9% respectively, while aspirin monotherapy increased low-shear BV by 9.3% (p < 0.0001). The combination of ticagrelor and aspirin increased MBF in the left foot compared to the other two treatments (p = 0.02), but not in the right foot (p = 0.25). CONCLUSIONS: Ticagrelor should be considered in the treatment of microvascular disease in patients with LEAD and T2DM. Trial registration Registration number: NCT02325466, registration date: December 25, 2014.


Assuntos
Viscosidade Sanguínea/efeitos dos fármacos , Diabetes Mellitus Tipo 2/complicações , Extremidade Inferior/irrigação sanguínea , Microcirculação/efeitos dos fármacos , Doença Arterial Periférica/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Ticagrelor/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Velocidade do Fluxo Sanguíneo , Estudos Cross-Over , Diabetes Mellitus Tipo 2/sangue , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque , Doença Arterial Periférica/sangue , Doença Arterial Periférica/complicações , Doença Arterial Periférica/fisiopatologia , Inibidores da Agregação Plaquetária/efeitos adversos , Fluxo Sanguíneo Regional , Ticagrelor/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
8.
Horm Metab Res ; 50(6): 453-461, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29719879

RESUMO

We previously reported on the lack of utility of the 1 mg overnight dexamethasone (DEX) test in mild and/or periodic Cushing's syndrome, as most patients with the condition suppressed to 1 mg DEX. It is possible that a lower dose of DEX as part of an overnight DEX test might be able to distinguish between mild and/or periodic Cushing's syndrome and those without the condition. The objective of the current study is to determine the sensitivity and specificity of a 0.25 mg overnight DEX suppression test, the standard 1 mg overnight DEX suppression test, and the two-day low-dose (Liddle test) DEX suppression test with and without correction for DEX levels in patients evaluated for mild and/or periodic Cushing's syndrome. Thirty patients determined to have Cushing's syndrome by biochemical testing and 14 patients determined not to have the condition had the 0.25 mg and standard 1 mg overnight DEX suppression test and the two-day low-dose DEX suppression tests. Our results show that morning serum cortisol and cortisol/DEX ratios following an overnight dexamethasone suppression test were similar in patients with Cushing's syndrome and those not having Cushing's syndrome. However, a morning cortisol value above 7.6 µg/dl following a dose of DEX of 0.25 mg was found in 12 patients with Cushing's syndrome and none in those not having Cushing's syndrome, suggesting that a high cortisol value after this low dose of dexamethasone can indicate that further testing for Cushing's syndrome is warranted. Our data suggest that the traditional 1 mg overnight or the 2 mg/2 day DEX suppression testing should no longer be used as a screening test in patients who could have mild and/or periodic Cushing's syndrome, while the 0.25 mg dose of DEX may pick up some patients with mild Cushing's syndrome.


Assuntos
Síndrome de Cushing/tratamento farmacológico , Dexametasona/uso terapêutico , Adolescente , Adulto , Síndrome de Cushing/sangue , Dexametasona/sangue , Relação Dose-Resposta a Droga , Feminino , Humanos , Hidrocortisona/sangue , Masculino , Pessoa de Meia-Idade , Adulto Jovem
9.
Cardiovasc Drugs Ther ; 32(5): 443-451, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30074112

RESUMO

BACKGROUND: Lower extremity arterial disease (LEAD) occurs more common in patients with diabetes than without diabetes. Microvascular complications of diabetes contribute to higher rates of adverse limb events in patients with LEAD. Blood flow in the macrocirculation and microcirculation is reduced with increasing low-shear and high-shear blood viscosity. We hypothesize that the adenosine enhancing properties of ticagrelor will reduce low-shear blood viscosity and improve microcirculatory flow in the dorsum of the feet of patients with type 2 diabetes. Ticagrelor is a P2Y12 receptor antagonist with evidence of cardiovascular event reduction in patients with acute coronary syndromes and those with a previous myocardial infarction. In a large multicenter trial of patients with symptomatic LEAD and a history of limb revascularization, ticagrelor was no more effective than clopidogrel in reducing cardiovascular disease events; however, this trial was not designed to investigate microvascular complications of diabetes. DESIGN: Hema-kinesis will evaluate whether ticagrelor monotherapy or ticagrelor combined with aspirin as compared with aspirin monotherapy can reduce blood viscosity-dependent blood flow in the feet of type 2 diabetes patients with LEAD. Eligible study participants will be randomized into a three-arm double-dummy crossover trial design. All subjects will have baseline blood viscosity measurements and determinations of microvascular flow using laser Doppler flowmetry. If the results of Hema-kinesis are positive, ticagrelor should be considered as treatment to reduce microvascular complications of LEAD in patients with type 2 diabetes.


Assuntos
Aspirina/uso terapêutico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Angiopatias Diabéticas/prevenção & controle , Extremidade Inferior/irrigação sanguínea , Doença Arterial Periférica/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Antagonistas do Receptor Purinérgico P2Y/uso terapêutico , Ticagrelor/uso terapêutico , Aspirina/efeitos adversos , Velocidade do Fluxo Sanguíneo , Viscosidade Sanguínea/efeitos dos fármacos , Estudos Cross-Over , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/fisiopatologia , Angiopatias Diabéticas/sangue , Angiopatias Diabéticas/diagnóstico , Angiopatias Diabéticas/fisiopatologia , Método Duplo-Cego , Quimioterapia Combinada , Humanos , Fluxometria por Laser-Doppler , Microcirculação , Doença Arterial Periférica/sangue , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/fisiopatologia , Inibidores da Agregação Plaquetária/efeitos adversos , Estudos Prospectivos , Antagonistas do Receptor Purinérgico P2Y/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto , Fluxo Sanguíneo Regional , Ticagrelor/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
10.
Nephrol Dial Transplant ; 32(7): 1233-1243, 2017 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-27659126

RESUMO

BACKGROUND: Inadequate protein intake and hypoalbuminemia, indicators of protein-energy wasting, are among the strongest mortality predictors in hemodialysis patients. Hemodialysis patients are frequently counseled on dietary phosphorus restriction, which may inadvertently lead to decreased protein intake. We hypothesized that, in hypoalbuminemic hemodialysis patients, provision of high-protein meals during hemodialysis combined with a potent phosphorus binder increases serum albumin without raising phosphorus levels. METHODS: We conducted a randomized controlled trial in 110 adults undergoing thrice-weekly hemodialysis with serum albumin <4.0 g/dL recruited between July 2010 and October 2011 from eight Southern California dialysis units. Patients were randomly assigned to receive high-protein (50-55 g) meals during dialysis, providing 400-500 mg phosphorus, combined with lanthanum carbonate versus low-protein (<1 g) meals during dialysis, providing <20 mg phosphorus. Prescribed nonlanthanum phosphorus binders were continued over an 8-week period. The primary composite outcome was a rise in serum albumin of ≥0.2 g/dL while maintaining phosphorus between 3.5-<5.5 mg/dL. Secondary outcomes included achievement of the primary outcome's individual endpoints and changes in mineral and bone disease and inflammatory markers. RESULTS: Among 106 participants who satisfied the trial entrance criteria, 27% ( n = 15) and 12% ( n = 6) of patients in the high-protein versus low-protein hemodialysis meal groups, respectively, achieved the primary outcome (intention-to-treat P-value = 0.045). A lower proportion of patients in the high-protein versus low-protein intake groups experienced a meaningful rise in interleukin-6 levels: 9% versus 31%, respectively (P = 0.009). No serious adverse events were observed. CONCLUSION: In hypoalbuminemic hemodialysis patients, high-protein meals during dialysis combined with lanthanum carbonate are safe and increase serum albumin while controlling phosphorus.


Assuntos
Doenças Ósseas/tratamento farmacológico , Proteínas Alimentares/administração & dosagem , Hipoalbuminemia/terapia , Lantânio/uso terapêutico , Diálise Renal , Doenças Ósseas/etiologia , Feminino , Humanos , Hipoalbuminemia/complicações , Masculino , Pessoa de Meia-Idade , Fósforo/sangue
12.
J Gen Intern Med ; 31 Suppl 1: 36-45, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26951274

RESUMO

BACKGROUND: The Veterans Health Administration (VA) has invested substantially in evidence-based mental health care. Yet no electronic performance measures for assessing the level at which the population of Veterans with depression receive appropriate care have proven robust enough to support rigorous evaluation of the VA's depression initiatives. OBJECTIVE: Our objectives were to develop prototype longitudinal electronic population-based measures of depression care quality, validate the measures using expert panel judgment by VA and non-VA experts, and examine detection, follow-up and treatment rates over a decade (2000-2010). We describe our development methodology and the challenges to creating measures that capture the longitudinal course of clinical care from detection to treatment. DESIGN AND PARTICIPANTS: Data come from the National Patient Care Database and Pharmacy Benefits Management Database for primary care patients from 1999 to 2011, from nine Veteran Integrated Service Networks. MEASURES: We developed four population-based quality metrics for depression care that incorporate a 6-month look back and 1-year follow-up: detection of a new episode of depression, 84 and 180 day follow-up, and minimum appropriate treatment 1-year post detection. Expert panel techniques were used to evaluate the measure development methodology and results. Key challenges to creating valid longitudinal measures are discussed. KEY RESULTS: Over the decade, the rates for detection of new episodes of depression remained stable at 7-8 %. Follow-up at 84 and 180 days were 37 % and 45 % in 2000 and increased to 56 % and 63 % by 2010. Minimum appropriate treatment remained relatively stable over the decade (82-84 %). CONCLUSIONS: The development of valid longitudinal, population-based quality measures for depression care is a complex process with numerous challenges. If the full spectrum of care from detection to follow-up and treatment is not captured, performance measures could actually mask the clinical areas in need of quality improvement efforts.


Assuntos
Depressão/terapia , Registros Eletrônicos de Saúde/tendências , Vigilância da População , Qualidade da Assistência à Saúde/tendências , United States Department of Veterans Affairs/tendências , Veteranos , Estudos de Coortes , Bases de Dados Factuais/tendências , Árvores de Decisões , Técnica Delphi , Depressão/diagnóstico , Depressão/epidemiologia , Registros Eletrônicos de Saúde/normas , Seguimentos , Humanos , Estudos Longitudinais , Vigilância da População/métodos , Qualidade da Assistência à Saúde/normas , Estados Unidos , United States Department of Veterans Affairs/normas
13.
BMC Med Res Methodol ; 16(1): 143, 2016 10 21.
Artigo em Inglês | MEDLINE | ID: mdl-27769177

RESUMO

BACKGROUND: Stepped wedge designs have gained recognition as a method for rigorously assessing implementation of evidence-based quality improvement interventions (QIIs) across multiple healthcare sites. In theory, this design uses random assignment of sites to successive QII implementation start dates based on a timeline determined by evaluators. However, in practice, QII timing is often controlled more by site readiness. We propose an alternate version of the stepped wedge design that does not assume the randomized timing of implementation while retaining the method's analytic advantages and applying to a broader set of evaluations. To test the feasibility of a nonrandomized stepped wedge design, we developed simulated data on patient care experiences and on QII implementation that had the structures and features of the expected data from a planned QII. We then applied the design in anticipation of performing an actual QII evaluation. METHODS: We used simulated data on 108,000 patients to model nonrandomized stepped wedge results from QII implementation across nine primary care sites over 12 quarters. The outcome we simulated was change in a single self-administered question on access to care used by Veterans Health Administration (VA), based in the United States, as part of its quarterly patient ratings of quality of care. Our main predictors were QII exposure and time. Based on study hypotheses, we assigned values of 4 to 11 % for improvement in access when sites were first exposed to implementation and 1 to 3 % improvement in each ensuing time period thereafter when sites continued with implementation. We included site-level (practice size) and respondent-level (gender, race/ethnicity) characteristics that might account for nonrandomized timing in site implementation of the QII. We analyzed the resulting data as a repeated cross-sectional model using HLM 7 with a three-level hierarchical data structure and an ordinal outcome. Levels in the data structure included patient ratings, timing of adoption of the QII, and primary care site. RESULTS: We were able to demonstrate a statistically significant improvement in adoption of the QII, as postulated in our simulation. The linear time trend while sites were in the control state was not significant, also as expected in the real life scenario of the example QII. CONCLUSIONS: We concluded that the nonrandomized stepped wedge design was feasible within the parameters of our planned QII with its data structure and content. Our statistical approach may be applicable to similar evaluations.


Assuntos
Prática Clínica Baseada em Evidências/normas , Prática Clínica Baseada em Evidências/métodos , Humanos , Estudos Multicêntricos como Assunto , Assistência Centrada no Paciente , Melhoria de Qualidade , Projetos de Pesquisa
14.
Ann Emerg Med ; 67(1): 96-105.e5, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26094105

RESUMO

STUDY OBJECTIVE: We evaluated thromboembolic events after vitamin K antagonist reversal in post hoc analyses of pooled data from 2 randomized trials comparing 4-factor prothrombin complex concentrate (4F-PCC) (Beriplex/Kcentra) with plasma. METHODS: Unblinded investigators identified thromboembolic events, using standardized terms (such as "myocardial infarction," "deep vein thrombosis," "pulmonary embolism," and "ischemic stroke"). A blinded safety adjudication board reviewed serious thromboembolic events, as well as those referred by an independent unblinded data and safety monitoring board. We descriptively compared thromboembolic event and patient characteristics between treatment groups and included detailed patient-level outcome descriptions. We did not power the trials to assess safety. RESULTS: We enrolled 388 patients (4F-PCC: n=191; plasma: n=197) in the trials. Thromboembolic events occurred in 14 of 191 patients (7.3%) in the 4F-PCC group and 14 of 197 (7.1%) in the plasma group (risk difference 0.2%; 95% confidence interval -5.5% to 6.0%). Investigators reported serious thromboembolic events in 16 patients (4F-PCC: n=8; plasma: n=8); the data and safety monitoring board referred 2 additional myocardial ischemia events (plasma group) to the safety adjudication board for review. The safety adjudication board judged serious thromboembolic events in 10 patients (4F-PCC: n=4; plasma: n=6) as possibly treatment related. There were 8 vascular thromboembolic events in the 4F-PCC group versus 4 in the plasma group, and 1 versus 6 cardiac events, respectively. Among patients with thromboembolic events, 3 deaths occurred in each treatment group. All-cause mortality for the pooled population was 13 per group. We observed no relationship between thromboembolic event occurrence and factor levels transiently above the upper limit of normal; there were no notable differences in median factor or proteins C and S levels up to 24 hours postinfusion start in patients with and without thromboembolic events. CONCLUSION: The incidence of thromboembolic events after vitamin K antagonist reversal with 4F-PCC or plasma was similar and independent of coagulation factor levels; small differences in the number of thromboembolic event subtypes were observed between treatment groups.


Assuntos
Fatores de Coagulação Sanguínea/efeitos adversos , Plasma , Tromboembolia/induzido quimicamente , Vitamina K/antagonistas & inibidores , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto
15.
Transfusion ; 55(11): 2722-9, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26135740

RESUMO

BACKGROUND: Plasma is commonly used for vitamin K antagonist (VKA) reversal, but observational studies suggest that it is associated with transfusion-related adverse reactions (e.g., volume overload). However, this issue has not previously been addressed in a randomized controlled trial (RCT). STUDY DESIGN AND METHODS: Factors associated with volume overload were examined using data from two Phase IIIb RCTs comparing plasma with four-factor prothrombin complex concentrate (4F-PCC, Beriplex/Kcentra, CSL Behring) for urgent VKA reversal. VKA-treated patients with major bleeding (NCT00708435) or requiring an urgent surgical or invasive procedure (NCT00803101) were randomly assigned (1:1) to receive either plasma or 4F-PCC, concomitant with vitamin K. Adverse events (AEs) and serious AEs were prospectively captured up to Day 10 and 45, respectively. Volume overload predictors were evaluated on a univariate and multivariate basis. RESULTS: A total of 388 patients (4F-PCC, n = 191; plasma, n = 197) were enrolled. Volume overload occurred in 34 (9%) patients (4F-PCC, n = 9; plasma, n = 25). In univariate analyses, use of plasma (vs. 4F-PCC), use of nonstudy plasma and/or platelets, race, history of congestive heart failure (CHF), and history of renal disease were associated with volume overload. In multivariate analyses, use of plasma (vs. 4F-PCC), history of CHF, and history of renal disease were independent volume overload predictors. In an additional analysis restricted to volume overload events recorded up to Day 7, only use of plasma (vs. 4F-PCC) was an independent volume overload predictor. CONCLUSIONS: After adjusting for other potential risk factors, plasma use was independently associated with a greater risk of volume overload than 4F-PCC in patients requiring urgent VKA reversal.


Assuntos
Vitamina K/antagonistas & inibidores , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/uso terapêutico , Fatores de Coagulação Sanguínea/uso terapêutico , Feminino , Humanos , Coeficiente Internacional Normatizado , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Fatores de Risco
16.
BMC Neurol ; 15: 258, 2015 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-26670300

RESUMO

BACKGROUND: Parkinson's disease, the second most common neurodegenerative disease, is diagnostically defined by motor impairments, but also includes often under-recognized impairments in cognition, mood, sleep, and the autonomic nervous system. These problems can severely affect individuals' quality of life. In our prior research, we have developed indicators to measure the quality of care delivered to patients with Parkinson's disease, and we identified gaps in delivering evidence-based treatments for this population. Effective strategies to close these gaps are needed to improve patient quality of life. METHODS/DESIGN: Building on prior research we developed a multi-faceted proactive implementation program called Care Coordination for Health Promotion and Activities in Parkinson's Disease (CHAPS). To be eligible, patients had to have at least two visits with a primary diagnosis of idiopathic Parkinson's disease (ICD-9 code: 332.0) at one of five Veterans Affairs Medical Centers in the southwestern United States from 2010 to 2014. The program consists of telephone assessments, evidence-based protocols, and tools to enhance patient self-management, care planning, and coordination of care across providers, including an electronic database to support and track coordination of care. Our mixed-methods study employs a randomized, controlled trial design to test whether the CHAPS intervention improves performance in 38 quality measures among an analytic sample of 346 patients. The 38 quality measures are categorized into overarching areas of communication, education, and continuity; regulatory reporting; diagnosis; periodic assessment; medication use; management of motor and non-motor symptoms; use of non-pharmacological approaches and therapies; palliative care; and health maintenance. Secondary outcomes are patient health-related quality of life, self-efficacy, and perceptions of care quality. We are also evaluating the extent of the CHAPS Program implementation and measuring program costs and impacts on health services utilization, in order to perform a analysis of the CHAPS program from the perspective of the Veterans Health Administration (VA). Outcomes are assessed by interviewer-administered surveys collected at baseline and at 6, 12, and 18 months, and by medical record chart abstractions. Analyses will be intention-to-treat. DISCUSSION: The CHAPS Program is poised for dissemination within the VA National Parkinson's Disease Research, Education, and Clinical Center Consortium if demonstrated efficacious. TRIAL REGISTRATION: ClinicalTrials.gov NCT01532986; registered on January 13, 2012.


Assuntos
Protocolos Clínicos , Gerenciamento Clínico , Promoção da Saúde/métodos , Avaliação de Resultados em Cuidados de Saúde , Doença de Parkinson/reabilitação , Qualidade da Assistência à Saúde , Adulto , Humanos , Estudos Multicêntricos como Assunto , Doença de Parkinson/diagnóstico
17.
J Pediatr ; 165(5): 915-20, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25130571

RESUMO

OBJECTIVE: To evaluate whether premature infants who received an exclusive human milk (HM)-based diet and a HM-derived cream supplement (cream) would have weight gain (g/kg/d) at least as good as infants receiving a standard feeding regimen (control). STUDY DESIGN: In a prospective noninferiority, randomized, unmasked study, infants with a birth weight 750-1250 g were randomly assigned to the control or cream group. The control group received mother's own milk or donor HM with donor HM-derived fortifier. The cream group received a HM-derived cream supplement if the energy density of the HM tested <20 kcal/oz using a near infrared HM analyzer. Infants were continued on the protocol until 36 weeks postmenstrual age. Primary outcomes included growth velocities and amount of donor HM-derived fortifier used. The hypothesis of noninferiority was established if the lower bound of the one-sided 95% CI for the difference in weight velocities exceeded -3 g/kg/day. RESULTS: There were no differences between groups in baseline demographics for the 78 infants studied except racial distribution (P = .02). The cream group (n = 39) had superior weight (14.0 ± 2.5 vs 12.4 ± 3.0 g/kg/d, P = .03) and length (1.03 ± 0.33 vs 0.83 ± 0.41 cm/wk, P = .02) velocity compared with the control group (n = 39). There were no significant differences in amount of fortifier used between study groups. The 1-sided 95% lower bound of the CI for the difference in mean velocity (cream-control) was 0.38 g/kg/d. CONCLUSIONS: Premature infants who received HM-derived cream to fortified HM had improved weight and length velocity compared with the control group. HM-derived cream should be considered an adjunctive supplement to an exclusive HM-based diet to improve growth rates in premature infants.


Assuntos
Alimentos Fortificados , Recém-Nascido Prematuro/crescimento & desenvolvimento , Recém-Nascido de muito Baixo Peso/crescimento & desenvolvimento , Leite Humano/fisiologia , Aumento de Peso/fisiologia , Peso ao Nascer , Peso Corporal , Suplementos Nutricionais , Feminino , Humanos , Lactente , Masculino , Estudos Prospectivos
18.
Am J Physiol Regul Integr Comp Physiol ; 306(2): R118-23, 2014 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-24305063

RESUMO

Whether exogenous testosterone is proatherogenic remains controversial. We assessed the effects of graded doses of testosterone on serum markers of oxidative stress, chemotaxis, adhesion, and inflammation in healthy younger and older men. In a double-blind, randomized trial, 121 eugonadal men (n = 61, 18-35 years of age and n = 60, 60-75 years of age) were randomized to one of five groups to receive weekly injections of 25, 50, 125, 300, or 600 mg of testosterone enanthate for 20 wk, respectively, along with a long-acting gonadotropin-releasing hormone (GnRH) agonist. Energy and protein intakes were standardized and no resistance training was allowed. We measured plasma levels of the atherogenic biomarkers monocyte chemotactic protein-1 (MCP-1), soluble intracellular adhesion molecule-1 (sICAM-1), 8-isoprostane-PGF(2α) (8-iso-PGF(2α)), and high-sensitivity C-reactive protein (hs-CRP) before and after the intervention. Administration of increasing doses of testosterone led to reduction in total 8-iso-PGF(2α) in the younger (p-trend(Younger) = 0.01), but not older (p-trend(Older) = 0.79) men. No significant linear associations were observed between testosterone dose and MCP-1, sICAM-1, or hs-CRP (all p-trend >0.20). In apparently healthy men, over a wide dose range, testosterone did not adversely affect atherogenic biomarkers. Long-term studies with larger sample sizes are warranted to determine whether testosterone supplementation affects atherosclerosis progression and cardiovascular risk.


Assuntos
Envelhecimento , Androgênios/farmacologia , Aterosclerose/induzido quimicamente , Testosterona/análogos & derivados , Adolescente , Adulto , Idoso , Androgênios/administração & dosagem , Relação Dose-Resposta a Droga , Método Duplo-Cego , Humanos , Masculino , Pessoa de Meia-Idade , Testosterona/administração & dosagem , Testosterona/farmacologia , Adulto Jovem
19.
Ethn Dis ; 24(2): 195-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24804366

RESUMO

OBJECTIVE: To evaluate community screening using HbA1c levels in high risk African Americans and Latinos in those not known to have diabetes. DESIGN: HbA1c levels were measured in 1542 African Americans and Latinos aged > or = 40 years with one or more of the following risk factors: family history in first degree relatives, waist circumference > or = 40 inches in males or > or = 35 inches in females, and hypertension, either treatment for or a measured BP of > or = 140/ 90 mm Hg. Oral glucose tolerance tests (OGTT) were offered to those meeting the HbA1c criterion for pre-diabetes. SETTING: Churches, community health fares, senior citizen sites. PARTICIPANTS: People without known diabetes. MAIN OUTCOME MEASURES: Proportion of people meeting the HbA1c criteria for prediabetes (5.8-6.4%) and diabetes (> or = 6.5%). RESULTS: 32% had one, 50% had two and 18% had three risk factors. By HbA1c criteria, 40% had pre-diabetes and 25% had diabetes. Increased waist circumference was the most common risk factor followed by a positive family history, and lastly, hypertension. Each individual risk factor was significantly (P < .001) and progressively more common as glycemia increased. Each additional risk factor increased the odds of pre-diabetes or diabetes by 2- to 4-fold. In individuals with pre-diabetes who underwent an OGTT, 59% were normal, 35% had pre-diabetes and only 6% had diabetes. CONCLUSIONS: Community screening of high risk African Americans and Latinos with HbA1c levels identifies a large proportion of people with pre-diabetes and diabetes. Those identified with pre-diabetes are unlikely to meet the OGTT criteria for diabetes.


Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Diabetes Mellitus Tipo 2/diagnóstico , Hispânico ou Latino/estatística & dados numéricos , Estado Pré-Diabético/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Serviços de Saúde Comunitária , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/etnologia , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Hipertensão , Masculino , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Estado Pré-Diabético/sangue , Estado Pré-Diabético/epidemiologia , Estado Pré-Diabético/etnologia , Fatores de Risco , Estados Unidos/epidemiologia , Circunferência da Cintura
20.
Nutrients ; 16(8)2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38674897

RESUMO

An exclusive human milk diet (EHMD) and standardized feeding protocols are two critical methods for safely feeding very low birth weight (VLBW) infants. Our institution initiated a standardized feeding protocol for all VLBW infants in 2018. In this protocol, a human milk fat modular was used only reactively when an infant had poor weight gain, fluid restriction, or hypoglycemia. As part of our NICU quality improvement program, internal utilization review data revealed a potential opportunity to improve growth and reduce costs. While maintaining the EHMD, a simple feeding guideline process change could provide cost savings without sacrificing caloric density or growth. We examined this process change in pre-post cohorts of VLBW infants. METHODS: Our revised feeding protocol, established in October 2021, called for a human milk fat modular (Prolact CR) to be added to all infant feeding when parenteral nutrition (PN) and lipids were discontinued. The human milk fat modular concentration is 4 mL per 100 mL feed, providing approximately an additional 2 kcal/oz. We tracked data to compare (1) the use of the human milk fat modular, (2) the use of the human milk +8 fortifier, (3) overall growth before and after feeding protocol changes, and (4) cost differences between protocols. RESULTS: Thirty-six VLBW infants were followed prospectively upon the introduction of the revised feeding protocol. In the revised era, the need for human milk +8 fortifier decreased from 43% to 14%. The decrease in the cost of a more costly fortifier provided a cost savings of USD 2967.78 on average per infant. Overall growth improved from birth to discharge, with severe malnutrition declining from 3.3% to 2.7% and moderate malnutrition declining from 37% to 8%. CONCLUSIONS: With the proactive use of a human milk fat modular in a standardized feeding protocol, our VLBW infants showed improved growth, lower malnutrition rates, and decreased use of higher caloric fortifiers.


Assuntos
Fenômenos Fisiológicos da Nutrição do Lactente , Recém-Nascido de muito Baixo Peso , Unidades de Terapia Intensiva Neonatal , Leite Humano , Humanos , Recém-Nascido , Recém-Nascido de muito Baixo Peso/crescimento & desenvolvimento , Masculino , Feminino , Aumento de Peso , Nutrição Parenteral , Gorduras na Dieta/administração & dosagem , Recém-Nascido Prematuro/crescimento & desenvolvimento
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