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1.
Heart Fail Rev ; 29(1): 207-217, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37917192

RESUMEN

Sodium-glucose cotransoporter-2 inhibitors (SGLT-2Is) improve prognosis in heart failure (HF) patients both with reduced ejection fraction (HFrEF) and preserved ejection fraction (HFpEF). However, these drugs can have some side effects. To estimate the relative risk of side effects in HF patients treated with SGLT-2Is irrespective from left ventricular EF and setting (chronic and non-chronic HF). Five randomized controlled trials (RCTs) enrolling patients with HFrEF, 4 RCTs enrolling non-chronic HF, and 3 RCTs enrolling HFpEF were included. Among side effects, urinary infection, genital infection, acute kidney injury, diabetic ketoacidosis, hypoglycemia, hyperkalemia, hypokalemia, bone fractures, and amputations were considered in the analysis. Overall, 24,055 patients were included in the analysis: 9020 (38%) patients with HFrEF, 12,562 (52%) with HFpEF, and 2473 (10%) with non-chronic HF. There were no differences between SGLT-2Is and placebo in the risk to develop diabetic ketoacidosis, hypoglycemia, hyperkalemia, hypokalemia, bone fractures, and amputations. HFrEF patients treated with SGLT-2Is had a significant reduction of acute kidney injury (RR = 0.54 (95% CI 0.33-0.87), p = 0.011), whereas no differences have been reported in the HFpEF group (RR = 0.94 (95% CI 0.83-1.07), p = 0.348) and non-chronic HF setting (RR = 0.79 (95% CI 0.55-1.15), p = 0.214). A higher risk to develop genital infection (overall 2.57 (95% CI 1.82-3.63), p < 0.001) was found among patients treated with SGLT-2Is irrespective from EF (HFrEF: RR = 1.96 (95% CI 1.17-3.29), p = 0.011; HFpEF: RR = 3.04 (95% CI 1.88-4.90), p < 0.001). The risk to develop urinary infections was increased among SGLT-2I users in the overall population (RR = 1.13 (95% CI 1.00-1.28), p = 0.046) and in the HFpEF setting (RR = 1.19 (95% CI 1.02-1.38), p = 0.029), whereas no differences have been reported in HFrEF (RR = 1.05 (95% CI 0.81-1.36), p = 0.725) and in non-chronic HF setting (RR = 1.04 (95% CI 0.75-1.46), p = 0.806). SGLT-2Is increase the risk of urinary and genital infections in HF patients. In HFpEF patients, the treatment increases the risk of urinary infections compared to placebo, whereas SGLT-2Is reduce the risk of acute kidney disease in patients with HFrEF.


Asunto(s)
Lesión Renal Aguda , Cetoacidosis Diabética , Fracturas Óseas , Insuficiencia Cardíaca , Hiperpotasemia , Hipoglucemia , Hipopotasemia , Humanos , Volumen Sistólico , Cetoacidosis Diabética/inducido químicamente , Hiperpotasemia/inducido químicamente , Hiperpotasemia/epidemiología , Glucosa
2.
Heart Fail Rev ; 28(6): 1395-1403, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37380925

RESUMEN

The aim of this study was to assess whether angiotensin receptor/neprilysin inhibitor (ARNI) decreases ventricular arrhythmic burden compared to angiotensin-converting enzyme inhibitors or angiotensin receptor antagonist (ACE-I/ARB) treatment in chronic heart failure with reduced ejection fraction (HFrEF) patients. Further, we assessed if ARNI influenced the percentage of biventricular pacing. A systematic review of studies (both RCTs and observational studies) including HFrEF patients and those receiving ARNI after ACE-I/ARB treatment was conducted using Medline and Embase up to February 2023. Initial search found 617 articles. After duplicate removal and text check, 1 RCT and 3 non-RCTs with a total of 8837 patients were included in the final analysis. ARNI was associated with a significative reduction of ventricular arrhythmias both in RCT (RR 0.78 (95% CI 0.63-0.96); p = 0.02) and observational studies (RR 0.62; 95% CI 0.53-0.72; p < 0.001). Furthermore, in non-RCTs, ARNI also reduced sustained (RR 0.36 (95% CI 0.2-0.63); p < 0.001), non-sustained VT (RR 0.67 (95% CI 0.57-0.80; p = 0.007), ICD shock (RR 0.24 (95% CI 0.12-0.48; p < 0.001), and increased biventricular pacing (2.96% (95% CI 2.25-3.67), p < 0.001). In patients with chronic HFrEF, switching from ACE-I/ARB to ARNI treatment was associated with a consistent reduction of ventricular arrhythmic burden. This association could be related to a direct pharmacological effect of ARNI on cardiac remodeling.Trial registration: CRD42021257977.

3.
Osteoporos Int ; 32(2): 353-362, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32793995

RESUMEN

The aim of this study was to evaluate the association of levels of urinary total polyphenols considered as a proxy measure of polyphenol intake, with longitudinal changes of bone properties, in the InCHIANTI study. Dietary intake of polyphenols appears to be associated with future accelerated deterioration of bone health. INTRODUCTION: Polyphenols, micronutrients ingested through plant-based foods, have antioxidant and anti-inflammatory properties and may contribute to osteoporosis prevention. We evaluated associations of high levels of urinary total polyphenols (UTP), a proxy measure of polyphenol intake, with longitudinal changes of bone properties in a representative cohort of free-living participants of the InCHIANTI study. METHODS: The InCHIANTI study enrolled representative samples from the registry list of two towns in Tuscany, Italy. Baseline data were collected in 1998 and follow-up visits in 2001 and 2004. Of the 1453 participants enrolled, 956 consented to donate a 24-h urine sample used to assess UTP, had dietary assessment, a physical examination, and underwent a quantitative computerized tomography (pQCT) of the tibia. From pQCT images, we estimated markers of bone mass (BM), diaphyseal design (DD), and material quality (MQ). Mixed models were used to study the relationship between baseline tertiles of UTP with changes of the bone characteristics over the follow-up. RESULTS: At baseline, higher levels of UTP were positively correlated with markers of BM, DD, and MQ. Compared with lower tertile of UTP, participants in the intermediate and highest tertiles had higher cortical bone area, cortical mineral content, and cortical thickness. However, participants in the intermediate and highest UTP tertiles experienced accelerated deterioration of these same parameters over the follow-up compared with those in the lowest UTP tertile. CONCLUSIONS: Dietary intake of polyphenols estimated by UTP and dietary questionnaire was associated with long-term accelerated deterioration of bone health. Our study does not support the recommendation of increasing polyphenol intake for osteoporosis prevention.


Asunto(s)
Antioxidantes , Polifenoles , Densidad Ósea , Estudios de Cohortes , Dieta , Humanos , Italia/epidemiología , Polifenoles/farmacología
4.
Eur J Neurol ; 27(10): 1887-1894, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32441872

RESUMEN

BACKGROUND AND PURPOSE: The differentiation of Alzheimer's disease (AD) dementia from vascular dementia (VaD) and mixed-type dementia (mixed dementia) requires stepwise analysis and usually occurs late in the disease process. Early diagnosis and therapy monitoring would benefit greatly from the identification of biomarkers of neurodegeneration, especially blood biomarkers. To this end, the aim of the present pilot study was to investigate differences in the distribution of peripheral T-cell populations in patients with AD compared to VaD and mixed dementia. METHODS: Flow cytometry was performed on blood samples from 11 patients with AD, six with VaD and six with mixed dementia, as well as 17 healthy control subjects (HCs). CD4+ and CD8+ T cells were typed for expression of CD45, CD27, CD28, CD25, FoxP3, CCR4 and CCR6; the other leukocytes were also assessed. Functionally, immune cell uptake of the ß-amyloid (Aß) toxic fragment (Aß1-42 ) was also evaluated. RESULTS: A higher proportion of CD4+CD28- memory T cells and a reciprocal reduction of CD4+CD28+CD27+ naïve T lymphocytes was detected in all patient groups relative to controls. Significantly fewer CD4+CD25+FoxP3 regulatory T cells were present in patients with VaD, and significantly more CCR6+ and CCR4+ CD4+ T cells in those with AD. Higher CCR6+ T-cell frequencies were also present in patients with mixed dementia, potentially due to the inflammation and immune cell chemoattraction triggered by Aß. CONCLUSIONS: The present study was a comprehensive investigation comparing different kinds of dementia, revealing differentially expressed peripheral markers that are potentially useful for early AD, VaD and mixed dementia diagnoses, and that would assist in proper treatments for these disparate diseases. Validation is now required.


Asunto(s)
Enfermedad de Alzheimer , Demencia Vascular , Péptidos beta-Amiloides , Humanos , Fenotipo , Proyectos Piloto
5.
Nano Lett ; 19(2): 652-657, 2019 02 13.
Artículo en Inglés | MEDLINE | ID: mdl-30398889

RESUMEN

Semiconductor nanowires featuring strong spin-orbit interactions (SOI), represent a promising platform for a broad range of novel technologies, such as spintronic applications or topological quantum computation. However, experimental studies into the nature and the orientation of the SOI vector in these wires remain limited despite being of upmost importance. Typical devices feature the nanowires placed on top of a substrate which modifies the SOI vector and spoils the intrinsic symmetries of the system. In this work, we report experimental results on suspended InAs nanowires, in which the wire symmetries are fully preserved and clearly visible in transport measurements. Using a vectorial magnet, the nontrivial evolution of weak antilocalization (WAL) is tracked through all 3D space, and both the spin-orbit length l SO and coherence length lφ are determined as a function of the magnetic field magnitude and direction. Studying the angular maps of the WAL signal, we demonstrate that the average SOI within the nanowire is isotropic and that our findings are consistent with a semiclassical quasi-1D model of WAL adapted to include the geometrical constraints of the nanostructure. Moreover, by acting on properly designed side gates, we apply an external electric field introducing an additional vectorial Rashba spin-orbit component whose strength can be controlled by external means. These results give important hints on the intrinsic nature of suspended nanowire and can be interesting for the field of spintronics as well as for the manipulation of Majorana bound states in devices based on hybrid semiconductors.

7.
J Chem Phys ; 151(4): 044507, 2019 Jul 28.
Artículo en Inglés | MEDLINE | ID: mdl-31370561

RESUMEN

The structural and dynamical properties of hydration water in aqueous solutions of trehalose are studied with molecular dynamics simulation. We simulate the systems in the supercooled region to investigate how the interaction with the trehalose molecules modifies the hydrogen bond network, the structural relaxation, and the diffusion properties of hydration water. The analysis is performed by considering the radial distribution functions, the residence time of water molecules in the hydration shell, the two body excess entropy, and the hydrogen bond water-water and water-trehalose correlations of the hydration water. The study of the two body excess entropy shows the presence of a fragile to strong crossover in supercooled hydration water also found in the relaxation time of the water-water hydrogen bond correlation function, and this is in agreement with predictions of the mode coupling theory and of previous studies of the oxygen-oxygen density correlators [A. Iorio et al., J. Mol. Liq. 282, 617 (2019); Sci. China: Phys., Mech. Astron. 62, 107011 (2019)]. The water-trehalose hydrogen bond correlation function instead evidences a strong to strong crossover in the relaxation time, and this crossover is related to a trehalose dynamical transition. This signals the role that the strong interplay between the soluted molecules and the surrounding solvent has in determining the dynamical transition common to both components of the system that happens upon cooling and that is similar to the well known protein dynamical transition. We connect our results with the cryoprotecting role of trehalose molecules.

8.
Haemophilia ; 24 Suppl 6: 60-67, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29878660

RESUMEN

Since the 1960s, the pace of innovation in haemophilia treatment has been fast and furious and occasionally with unintended consequences. As newer technologies are harnessed to better treat, and potentially cure, haemophilias A and B, an understanding of their underlying scientific principles and their benefits and risks are essential for all stakeholders. This review summarizes the starts and stops of introducing FVIII and FIX transgenes clinically, beginning 20 years ago. Lessons from earlier nonclinical and clinical experiments have been utilized to improve vector selection, vector design, promoter/enhancer cis control regions and codon-optimized transgenes to trigger in vivo clinical FVIII and FIX levels in the near-normal to normal ranges. Many known and unknown questions remain, and some, based upon benefit and risk, should be answered during larger phase 3 clinical trials. Prior clinical outcomes in haemophilia trials have not been standardized, making between-trial comparisons difficult. Going forward, haemophilia gene therapy clinical trials should utilize a standard set of core outcomes, to facilitate comparisons to other gene- and protein-based therapies. These outcomes will be more important as the field moves beyond the first-generation gene therapies into more complex vectors that may address the shortcomings of first-generation vectors and offer greater benefits to the patient.


Asunto(s)
Terapia Genética/métodos , Vectores Genéticos/genética , Hemofilia A/genética , Hemofilia A/terapia , Transgenes/genética , Animales , Factores de Coagulación Sanguínea/genética , Humanos , Resultado del Tratamiento
9.
Haemophilia ; 24(4): e167-e172, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29781145

RESUMEN

BACKGROUND: Gene therapy trial results show potential to cure haemophilia A and haemophilia B. Securing broad access to a cure for a lifelong chronic disease is anticipated to face barriers at the individual and healthcare system levels, which can be partly mitigated by harmonized planning of clinical research studies. The aim of the coreHEM project was to determine the set of outcome measures required to evaluate efficacy, safety, comparative effectiveness and value of gene therapy for haemophilia. METHODS: Modified Delphi consensus process, based on methods adapted from the COMET Initiative. RESULTS: Forty-nine participants (five patients, five clinicians, five researchers, four regulators, three research agencies, six health technology assessors, nine payers and 12 drug developers) took part in the study, with over 90% participation. The frequency of bleeds, factor activity level, duration of expression, chronic pain, healthcare resource use and mental health were identified as the core outcomes to be measured in addition to regulatory-mandated adverse effects. CONCLUSIONS: For the first time in haemophilia, a core outcome set has been developed, with the involvement of representatives of all relevant stakeholder groups. The core set has been expanded to include outcomes supporting assessment of comparative effectiveness and value, with the goal of streamlining regulatory approval, health technology assessment and market access decisions. Patient involvement ensures that outcomes are meaningful and relevant to those living with haemophilia. Active dialogue among drug developers, regulators and payers throughout the process is expected to facilitate broad uptake of the core outcomes in forthcoming clinical trials.


Asunto(s)
Terapia Genética , Hemofilia A/terapia , Hemofilia B/terapia , Evaluación de Resultado en la Atención de Salud , Ensayos Clínicos como Asunto , Técnica Delphi , Terapia Genética/efectos adversos , Hemofilia A/genética , Hemofilia B/genética , Humanos , Seguridad
10.
Int J Phytoremediation ; 20(13): 1354-1361, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30666892

RESUMEN

The remediation of contaminated dredged sediments is necessary to eliminate the risk towards human beings or the environment when there is disposal on land. A greenhouse experiment was carried out to evaluate the chemically assisted phytoextraction to clean up dredged sediment contaminated with Cr, Cu, Pb, and Zn. The ability of castor bean and chicory to absorb, translocate, and accumulate metals from sediment to root and shoot was evaluated by applying EDTA (5 mM), NTA (5 mM), and citric acid (60 mM) to sediment, before the harvest. Citric acid 60 mM was the most effective treatment in increasing Cr, Cu, and Pb in castor bean and chicory shoot. Chicory could accumulate 1730 mg Cr kg-1 in shoot, and had greater values than one for the bioaccumulation and translocation factors when citric acid was added to the sediment. But, the Cr percentages removed per harvest of chicory were 0.05% and were lower for Cu, Pb, and Zn due to low biomass obtained. Citric acid-assisted phytoextraction with chicory can be a promising short time solution to reduce Cr concentration in sediment and reach the Cr level guide for industrial land use only if suitable agronomic practices could be implemented to increase crop yield.


Asunto(s)
Cichorium intybus , Metales Pesados/análisis , Ricinus communis , Contaminantes del Suelo/análisis , Biodegradación Ambiental , Ácido Cítrico , Ácido Edético , Humanos , Ricinus
11.
Haemophilia ; 23(1): e1-e7, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27928881

RESUMEN

BACKGROUND: Haemophilia is a rare disease for which quality of care varies around the world. We propose data-driven indicators as surrogate measures for the provision of haemophilia care across countries and over time. MATERIALS AND METHODS: The guiding criteria for selection of possible indicators were ease of calculation and direct applicability to a wide range of countries with basic data collection capacities. General population epidemiological data and haemophilia A population data from the World Federation of Hemophilia (WFH) Annual Global Survey (AGS) for the years 2013 and 2010 in a sample of 10 countries were used for this pilot exercise. RESULTS: Three indicators were identified: (i) the percentage difference between the observed and the expected haemophilia A incidence, which would be close to null when all of the people with haemophilia A (PWHA) theoretically expected in a country would be known and reported to the AGS; (ii) the percentage of the total number of PWHA with severe disease; and (iii) the ratio of adults to children among PWHA standardized to the ratio of adults to children for males in the general population, which would be close to one if the survival of PWHA is equal to that of the general population. Country-specific values have been calculated for the 10 countries. CONCLUSIONS: We have identified and evaluated three promising indicators of quality of care in haemophilia. Further evaluation on a wider set of data from the AGS will be needed to confirm their value and further explore their measurement properties.


Asunto(s)
Hemofilia A/terapia , Adolescente , Adulto , Niño , Preescolar , Demografía , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Calidad de la Atención de Salud , Adulto Joven
12.
Haemophilia ; 23(1): 89-97, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27599642

RESUMEN

INTRODUCTION: Haemophilia management in China needs to be further developed. To further improve the quality of life (QoL) of people with haemophilia (PWH) in China, it is important to investigate the peculiarities of China as compared to other countries. AIM: The primary objective of the Haemophilia Experiences, Results and Opportunities (HERO) project was to quantify the impact of key psychosocial factors affecting PWH. This article presents the demographics, treatment characteristics, and QoL of adult PWH in China as compared with the results of the other nine countries participating in the HERO study. METHODS: This was a web- (except in Algeria) and questionnaire-based survey conducted in 10 countries. RESULTS: A total of 110 adult PWH from China and 565 from other countries completed the questionnaire. Compared with other countries, respondents in China reported: lower rate of employment (45.6% vs. 63.1%); lower percentages of being treated by prophylaxis (4.1% vs. 36.8%), being treated always at home (27.8% vs. 54.3%) and following treatment recommendation as instructed (6.2% vs. 40.5%); greater difficulty in obtaining replacement factor products (97.3% vs. 29.6%) and visiting their treatment centre (60.9% vs. 26.4%); more annual bleeds requiring treatment (mean: 29.4/year vs. 15.4/year); lower mean self-evaluated disease control score (5.5 vs. 7.7), EQ-5D index (0.71 vs. 0.75) and visual analogue scale (7.1 vs. 7.5) scores. Employed PWH in China had a better self-reported generic QoL than those unemployed. CONCLUSIONS: The study suggests that there is a major need for further improvement of both medical care and ongoing psychosocial support for PWH in China.


Asunto(s)
Hemofilia A/epidemiología , Adulto , China , Femenino , Hemofilia A/terapia , Humanos , Masculino , Calidad de Vida , Encuestas y Cuestionarios
13.
Haemophilia ; 23(3): 408-416, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28233383

RESUMEN

INTRODUCTION: Recombinant factor VIII (rFVIII) products with extended half-lives have the potential to improve adherence and outcomes in haemophilia beyond the results obtained with conventional rFVIII products. AIM: In the absence of head-to-head comparisons, annualized bleed rates (ABRs) and weekly factor consumption with rFVIII Fc fusion protein (rFVIIIFc) and conventional rFVIII products were indirectly compared using studies of continuous prophylaxis. METHODS: A systematic literature review was conducted to identify studies of rFVIII products for comparison with rFVIIIFc in the continuous prophylactic treatment of previously treated adolescents and adults with moderate and severe haemophilia A. Mean ABRs were compared between rFVIIIFc and individual rFVIII studies and between rFVIIIFc and a pooled measure for rFVIII estimated by meta-analysis. Comparisons of factor consumption were based on mean or median weekly factor consumption. RESULTS: Results from seven studies of conventional rFVIII products (injections 2-4 times week-1 ) were compared with rFVIIIFc (injections 1.4-2.4 times week-1 ). The pooled mean ABR for rFVIII products was significantly higher compared with rFVIIIFc (difference = 2.0; P = 0.007). Compared with most rFVIII studies, the reported weekly factor consumption was lower with rFVIIIFc [mean differences = 15.5-21.8 IU kg-1 week-1 (17-26%); median differences = 12.7-29.8 IU kg-1 week-1 (16-37%)]. In one comparison, mean weekly factor consumption with rFVIII was significantly lower but mean ABR was significantly higher than rFVIIIFc. CONCLUSION: Prophylaxis with rFVIIIFc may be associated with improved bleeding rates and lower weekly factor consumption than more frequently injected rFVIII products. Relative to rFVIII products with similar bleeding rates, results indicate that rFVIIIFc is associated with reduced weekly factor consumption while requiring fewer prescribed injections.


Asunto(s)
Factor VIII/farmacología , Hemofilia A/prevención & control , Fragmentos Fc de Inmunoglobulinas/genética , Proteínas Recombinantes de Fusión/farmacología , Adulto , Relación Dosis-Respuesta a Droga , Factor VIII/uso terapéutico , Femenino , Hemofilia A/complicaciones , Hemofilia A/tratamiento farmacológico , Hemorragia/complicaciones , Humanos , Masculino , Proteínas Recombinantes de Fusión/uso terapéutico , Resultado del Tratamiento
14.
Haemophilia ; 23(3): e170-e179, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28345268

RESUMEN

BACKGROUND: Prophylactic replacement with factor concentrate is the optimal treatment for persons with severe haemophilia to avoid or minimize bleeding. This ultimately prevents or reduces joint disease and improves life expectancy and quality of life towards values matching those in the normal population. However, uncertainty still exists around the optimal regimens to be prescribed for prophylaxis. An increasing number of treating physicians and patients are showing interest in patient-tailored approaches to prophylaxis, which aim to harmonize the prophylaxis regimen with the patients' bleeding phenotype, levels of physical activity and a variety of other variables. METHODS: A modified Delphi technique was adopted to generate consensus. The expert panel met in person to set the objectives, be trained on the Delphi technique and agree on the desired level of consensus. Three iterations were used to identify the targets, the scenarios and their combinations. RESULTS: Twenty-eight scenarios and eight target levels were identified and used to issue recommendations. The panel reached the desired level of consensus on positive or negative recommendations. Areas where consensus was not reached were identified and proposed as areas for future research. Prospective assessment of the validity of most of the proposed targets is recommended. CONCLUSIONS: We have generated, by expert consensus, target plasma levels of factor concentrate to be used to tailor treatment for persons with haemophilia.


Asunto(s)
Consenso , Técnica Delphi , Factor IX/metabolismo , Factor VIII/metabolismo , Hemofilia A/sangre , Hemofilia A/terapia , Medicina de Precisión , Testimonio de Experto , Humanos , Encuestas y Cuestionarios
15.
Haemophilia ; 23(2): 255-263, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28205285

RESUMEN

BACKGROUND: Development of inhibitors is the most serious complication in haemophilia A treatment. The assessment of risk for inhibitor formation in new or modified factor concentrates is traditionally performed in previously treated patients (PTPs). However, evidence on risk factors for and natural history of inhibitors has been generated mostly in previously untreated patients (PUPs). The purpose of this study was to examine cases of de novo inhibitors in PTPs reported in the scientific literature and to the EUropean HAemophilia Safety Surveillance (EUHASS) programme, and explore determinants and course of inhibitor development. METHODS: We used a case series study design and developed a case report form to collect patient level data; including detection, inhibitor course, treatment, factor VIII products used and events that may trigger inhibitor development (surgery, vaccination, immune disorders, malignancy, product switch). RESULTS: We identified 19 publications that reported 38 inhibitor cases and 45 cases from 31 EUHASS centres. Individual patient data were collected for 55/83 (66%) inhibitor cases out of 12 330 patients. The median (range) peak inhibitor titre was 4.4 (0.5-135.0), the proportion of transient inhibitors was 33% and only two cases of 12 undergoing immune tolerance induction failed this treatment. In the two months before inhibitor development, surgery was reported in nine (22%) cases, and high intensity treatment periods reported in seven (17%) cases. CONCLUSIONS: By studying the largest cohort of inhibitor development in PTPs assembled to date, we showed that inhibitor development in PTPs, is on average, a milder event than in PUPs.


Asunto(s)
Historia Natural/métodos , Adulto , Hemofilia A/tratamiento farmacológico , Humanos , Persona de Mediana Edad , Factores de Riesgo
16.
Haemophilia ; 22 Suppl 3: 17-22, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27348397

RESUMEN

BACKGROUND: Rigorous and transparent methods are necessary to develop clinically relevant and evidence-based practice guidelines. We describe the development of the National Hemophilia Foundation-McMaster Guideline on Care Models for Haemophilia Management, which addresses best practices in haemophilia care delivery. METHODS: We assembled a Panel of persons with haemophilia (PWH), parents of PWH, clinical experts and guideline methodologists. Conflicts of interest were disclosed and managed throughout. Panel members and key stakeholders were surveyed to develop the guideline questions and identify patient-important outcomes. Systematic reviews of the literature were conducted for all factors important in decision-making: benefits and harms; patient values and preferences; resource implications; acceptability; equity; and feasibility. We used the GRADE approach to create evidence profiles to evaluate the evidence and present key results. Evidence to Decision frameworks were created to guide the Panel in making evidence-based recommendations. When evidence was very low quality or not available, evidence from other chronic disease populations was presented to the Panel to inform the recommendations. Additionally, we systematically pooled observations from experts, and conducted qualitative interviews exploring key stakeholder experiences and perspectives. The Panel made recommendations for each guideline question and elaborated on research priorities, implementation considerations, and monitoring. Final recommendations were circulated for public and peer review. CONCLUSIONS: Despite the paucity of high-quality evidence typical of a rare condition such as haemophilia, we successfully applied a rigorous and transparent methodology based on GRADE to develop an evidence-based clinical practice guideline.


Asunto(s)
Atención a la Salud/métodos , Manejo de la Enfermedad , Hemofilia A/terapia , Atención a la Salud/normas , Medicina Basada en la Evidencia , Guías como Asunto , Humanos
17.
Haemophilia ; 22 Suppl 3: 23-30, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27348398

RESUMEN

INTRODUCTION: Care for persons with haemophilia (PWH) is most commonly delivered through the integrated care model used by Hemophilia Treatment Centers (HTCs). Although this model is widely accepted as the gold standard for the management of haemophilia; there is little evidence comparing different care models. AIM: We performed a qualitative study to gain insight into issues related to outcomes, acceptability, equity and feasibility of different care models operating in the US. METHODS: We used a qualitative descriptive approach with semi-structured interviews. Purposive sampling was used to recruit individuals with experience providing or receiving care for haemophilia in the US through either an integrated care centre, a specialty pharmacy or homecare company, or by a specialist in a non-specialized centre. Persons with haemophilia, parents of PWH aged ≤18, healthcare providers, insurance company representatives and policy developers were invited to participate. RESULTS AND CONCLUSIONS: Twenty-nine interviews were conducted with participants representing 18 US states. Participants in the study sample had experience receiving or providing care predominantly within an HTC setting. Integrated care at HTCs was highly acceptable to participants, who appreciated the value of specialized, expert care in a multidisciplinary team setting. Equity and feasibility issues were primarily related to health insurance and funding limitations. Additional research is required to document the impact of care on health and psychosocial outcomes and identify effective ways to facilitate equitable access to haemophilia treatment and care.


Asunto(s)
Atención a la Salud/normas , Manejo de la Enfermedad , Hemofilia A/terapia , Personal de Salud , Humanos , Seguro de Salud , Entrevistas como Asunto , Aceptación de la Atención de Salud , Percepción , Investigación Cualitativa , Estados Unidos
18.
Haemophilia ; 22 Suppl 3: 41-50, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27348400

RESUMEN

BACKGROUND: Integrated care models have been adopted for individuals with chronic conditions and for persons with rare diseases, such as haemophilia. OBJECTIVE: To summarize the evidence from reviews for the effects of integrated multidisciplinary care for chronic conditions in adults and to provide an example of using this evidence to make recommendations for haemophilia care. SEARCH METHODS: We searched MEDLINE, EMBASE, CINAHL and Cochrane Database of Systematic Reviews up to January 2016, and reviewed reference lists of retrieved papers. SELECTION CRITERIA: Systematic reviews of at least one randomized study, on adults with non-communicable chronic conditions. DATA COLLECTION AND ANALYSIS: Two investigators independently assessed eligibility and extracted data. Quality of reviews was assessed using ROBIS, and the evidence assessed using GRADE. RESULTS: We included seven reviews reporting on three chronic conditions. We found low to high quality evidence. Integrated care results in a reduction in mortality; likely a reduction in emergency visits and an improvement in function; little to no difference in quality of life, but shorter hospital stays; and may result in little to no difference in missed days of school or work. No studies reported educational attainment, or patient adherence and knowledge. When used for haemophilia, judgment about the indirectness of the evidence was driven by disease, intervention or outcome characteristics. CONCLUSION: This overview provides the most up to date evidence on integrated multidisciplinary care for chronic conditions in adults, and an example of how it can be used for guidelines in rare diseases.


Asunto(s)
Manejo de la Enfermedad , Enfermedades Raras/terapia , Adulto , Enfermedad Crónica , Bases de Datos Factuales , Atención a la Salud , Tratamiento de Urgencia , Hemofilia A/mortalidad , Hemofilia A/patología , Hemofilia A/terapia , Humanos , Tiempo de Internación , Calidad de Vida , Enfermedades Raras/patología
19.
Haemophilia ; 22 Suppl 3: 31-40, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27348399

RESUMEN

BACKGROUND: Haemophilia care is commonly provided via multidisciplinary specialized management. To date, there has been no systematic assessment of the impact of haemophilia care delivery models on patient-important outcomes. OBJECTIVE: To conduct a systematic review of published studies assessing the effects of the integrated care model for persons with haemophilia (PWH). SEARCH METHODS: We searched MEDLINE, EMBASE and CINAHL up to April 22, 2015, contacted experts in the field, and reviewed reference lists. SELECTION CRITERIA: Randomized and non-randomized studies of PWH or carriers, focusing mainly on the assessment of care models on delivery. DATA COLLECTION AND ANALYSIS: Two investigators independently screened title, abstract, and full text of retrieved articles for inclusion. Risk of bias and overall quality of evidence was assessed using Cochrane's ACROBAT-NRSI tool and GRADE respectively. Relative risks, mean differences, proportions, and means and their variability were calculated as appropriate. RESULTS: 27 non-randomized studies were included: eight comparative and 19 non-comparative studies. We found low- to very low-quality evidence that in comparison to other models of care, integrated care may reduce mortality, hospitalizations and emergency room visits, may lead to fewer missed days of school and work, and may increase knowledge seeking. CONCLUSION: Our comprehensive review found low- to very low-quality evidence from a limited number of non-randomized studies assessing the impact of haemophilia care models on some patient-important outcomes. While the available evidence suggests that adoption of the integrated care model may provide benefit to PWH, further high-quality research in the field is needed.


Asunto(s)
Manejo de la Enfermedad , Hemofilia A/terapia , Modelos de Enfermería , Ensayos Clínicos como Asunto , Bases de Datos Factuales , Atención a la Salud/métodos , Atención a la Salud/normas , Hemofilia A/mortalidad , Hemofilia A/patología , Humanos , Tiempo de Internación
20.
Haemophilia ; 22 Suppl 3: 6-16, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27348396

RESUMEN

This guideline was developed to identify evidence-based best practices in haemophilia care delivery, and discuss the range of care providers and services that are most important to optimize outcomes for persons with haemophilia (PWH) across the United States. The guideline was developed following specific methods described in detail in this supplement and based on the GRADE (Grading of Recommendations, Assessment, Development and Evaluation approach). Direct evidence from published literature and the haemophilia community, as well as indirect evidence from other chronic diseases, were reviewed, synthesized and applied to create evidence-based recommendations. The Guideline panel suggests that the integrated care model be used over non-integrated care models for PWH (conditional recommendation, moderate certainty in the evidence). For PWH with inhibitors and those at high risk for inhibitor development, the same recommendation was graded as strong, with moderate certainty in the evidence. The panel suggests that a haematologist, a specialized haemophilia nurse, a physical therapist, a social worker and round-the-clock access to a specialized coagulation laboratory be part of the integrated care team, over an integrated care team that does not include all of these components (conditional recommendation, very low certainty in the evidence). Based on available evidence, the integrated model of care in its current structure, is suggested for optimal care of PWH. There is a need for further appropriately designed studies that address unanswered questions about specific outcomes and the optimal structure of the integrated care delivery model in haemophilia.


Asunto(s)
Manejo de la Enfermedad , Hemofilia A/terapia , Autoanticuerpos/sangre , Atención a la Salud/métodos , Atención a la Salud/organización & administración , Atención a la Salud/normas , Medicina Basada en la Evidencia , Hemofilia A/patología , Humanos , Investigación , Factores de Riesgo
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