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1.
J Tissue Viability ; 29(4): 348-353, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32921549

RESUMEN

BACKGROUND: To characterize the problem of community-acquired pressure injuries (CAPIs) in a work-related spinal cord injury (SCI) population in Canada and assess the benefits of a person-centered solution. Characterization of the problem and a solution, albeit in an insured Worker's Compensation Board of British Columbia (WorkSafeBC) cohort, may inform the supply of solutions in the larger SCI population with disparate access to healthcare. METHODS: For this observational study, data on 244 WorkSafeBC clients, who received an intervention featuring pressure injury (PI) assessment between 2011 and 2015, were used to characterize the problem. Data on observed injuries, risk, referrals, and outcomes were linked to healthcare service claims. Employing an activity-based costing methodology, total expenditures on attributed services were calculated for clients with 1 or more PIs. Intervention cost and benefits from the insurer's perspective are considered. RESULTS: 84 of 244 clients had 1 or more PIs at assessment, with attributed mean cost of $56,092 in 2015 Canadian dollars (CAD). Mean cost by PI severity range from $9580 to $238,736. At an intervention cost of $820,618, detection of less severe injuries provided an opportunity to prevent progression and achieve $3 million in cost avoidance. Follow-up data suggest reasonable returns. Reductions in the incidence, number, and risk of pressure injuries were also observed. CONCLUSIONS: The analysis establishes the cost of CAPIs in a Canadian-based work-related SCI population and suggests preventative and early intervention is not only feasible but also practical. Results are relevant to decisions regarding the use of proactive prevention-based treatment models as opposed to reactive, solutions in the larger SCI population.


Asunto(s)
Úlcera por Presión/etiología , Traumatismos de la Médula Espinal/complicaciones , Adolescente , Adulto , Colombia Británica/epidemiología , Estudios de Cohortes , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Traumatismos Ocupacionales/complicaciones , Traumatismos Ocupacionales/epidemiología , Úlcera por Presión/epidemiología , Traumatismos de la Médula Espinal/epidemiología , Traumatismos de la Médula Espinal/etiología
2.
Blood ; 130(21): 2344-2353, 2017 11 23.
Artículo en Inglés | MEDLINE | ID: mdl-28916584

RESUMEN

Critical clinical questions remain unanswered regarding diagnosis and management of patients with low von Willebrand factor (VWF) levels (30-50 IU/dL). To address these questions, the Low VWF Ireland Cohort (LoVIC) study investigated 126 patients registered with low VWF levels. Despite marginally reduced plasma VWF levels, International Society of Thrombosis and Haemostasis Bleeding Assessment Tool (ISTH BAT) confirmed significant bleeding phenotypes in the majority of LoVIC patients. Importantly, bleeding tendency did not correlate with plasma VWF levels within the 30 to 50 IU/dL range. Furthermore, bleeding phenotypes could not be explained by concurrent hemostatic defects. Plasma factor VIII to VWF antigen (VWF:Ag) ratios were significantly increased in LoVIC patients compared with controls (P < .0001). In contrast, VWF propeptide to VWF:Ag ratios >3 were observed in only 6% of the LoVIC cohort. Furthermore, platelet-VWF collagen binding activity levels were both significantly reduced compared with controls (P < .05). In response to 1-desamino-8-D-arginine vasopressin (DDAVP), peak VWF:Ag levels exceeded 100 IU/dL in 88% of patients and was sustained >100 IU/dL after 4 hours in 72% of subjects. In conclusion, our novel data suggest that low VWF levels can be associated with significant bleeding and are predominantly due to reductions in VWF synthesis and/or constitutive secretion. Although enhanced VWF clearance may contribute to the pathophysiology in some individuals, the absolute reduction in VWF plasma half-life is usually mild and not sufficient to significantly impact upon the duration of DDAVP-induced VWF response. This trial was registered at www.clinicaltrials.gov as #NCT03167320.


Asunto(s)
Hemorragia/patología , Hemorragia/fisiopatología , Factor de von Willebrand/metabolismo , Adolescente , Adulto , Factores de Edad , Anciano , Estudios de Cohortes , Femenino , Hemorragia/sangre , Humanos , Irlanda , Masculino , Persona de Mediana Edad , Fenotipo , Adulto Joven
3.
Spinal Cord ; 56(9): 823-836, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29802393

RESUMEN

STUDY DESIGN: Systematic review. OBJECTIVES: To review the content and effectiveness of skin care self-management interventions for people with SCI. SETTING: International. METHODS: We searched electronic bibliographic databases, trial registers, and relevant reference lists. Eligibility criteria for the reviews of intervention content and effectiveness were identical with the exception of study design. The review of intervention content included non-randomized and randomized controlled trials (RCTs). The review of effectiveness included RCTs. A Behavior Change Technique (BCT) taxonomy of 93 BCTs was used to code intervention content. Intervention effects on outcomes of interest are summarized descriptively. Effect sizes were calculated, and the Cochrane risk of bias tool applied. RESULTS: In all, 15 studies testing 17 interventions were included in the review of intervention content. Interventions in these studies included 28 BCTs. The most common were "instructions on how to perform behavior" (16 interventions), "credible source" (12 interventions), and "social support (unspecified)" (9 interventions). Ten RCTs were included in the review of intervention effectiveness and they measured knowledge, self-efficacy, and skills relating to skin care/pressure ulcer (PU) prevention, skin care behaviors, skin status (PU prevalence, severity, and time to PU), and health-care utilization for skin problems. Evidence to support intervention effects on these outcomes was limited, particularly for clinical outcomes. Risk of bias assessments was often inconclusive due to poor reporting. CONCLUSIONS: There is potential to design SCI skin care interventions that include currently untested BCTs. Further research and better consistency in outcome measurements and reporting are required to synthesize evidence on effectiveness.


Asunto(s)
Automanejo/métodos , Cuidados de la Piel/métodos , Traumatismos de la Médula Espinal , Humanos , Úlcera por Presión/etiología , Úlcera por Presión/prevención & control , Ensayos Clínicos Controlados Aleatorios como Asunto , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/rehabilitación
5.
Blood ; 114(8): 1658-65, 2009 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-19531655

RESUMEN

Protamine sulfate is a positively charged polypeptide widely used to reverse heparin-induced anticoagulation. Paradoxically, prospective randomized trials have shown that protamine administration for heparin neutralization is associated with increased bleeding, particularly after cardiothoracic surgery with cardiopulmonary bypass. The molecular mechanism(s) through which protamine mediates this anticoagulant effect has not been defined. In vivo administration of pharmacologic doses of protamine to BALB/c mice significantly reduced plasma thrombin generation and prolonged tail-bleeding time (from 120 to 199 seconds). Similarly, in pooled normal human plasma, protamine caused significant dose-dependent prolongations of both prothrombin time and activated partial thromboplastin time. Protamine also markedly attenuated tissue factor-initiated thrombin generation in human plasma, causing a significant decrease in endogenous thrombin potential (41% +/- 7%). As expected, low-dose protamine effectively reversed the anticoagulant activity of unfractionated heparin in plasma. However, elevated protamine concentrations were associated with progressive dose-dependent reduction in thrombin generation. To assess the mechanism by which protamine mediates down-regulation of thrombin generation, the effect of protamine on factor V activation was assessed. Protamine was found to significantly reduce the rate of factor V activation by both thrombin and factor Xa. Protamine mediates its anticoagulant activity in plasma by down-regulation of thrombin generation via a novel mechanism, specifically inhibition of factor V activation.


Asunto(s)
Factor V/antagonistas & inhibidores , Protaminas/farmacología , Trombina/metabolismo , Animales , Anticoagulantes/farmacología , Tiempo de Sangría , Coagulación Sanguínea/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Regulación hacia Abajo/efectos de los fármacos , Evaluación Preclínica de Medicamentos , Sinergismo Farmacológico , Factor V/metabolismo , Factor VIIIa/metabolismo , Heparina/farmacología , Ratones , Ratones Endogámicos BALB C , Proteína C/metabolismo , Proteína C/fisiología , Procesamiento Proteico-Postraduccional/efectos de los fármacos
6.
Child Dev ; 82(1): 379-404, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21291448

RESUMEN

Using data collected up to age 26 in the Chicago Longitudinal Study, this cost-benefit analysis of the Child-Parent Centers (CPC) is the first for a sustained publicly funded early intervention. The program provides services for low-income families beginning at age 3 in 20 school sites. Kindergarten and school-age services are provided up to age 9 (third grade). Findings from a complete cohort of over 1,400 program and comparison group participants indicated that the CPCs had economic benefits in 2007 dollars that exceeded costs. The preschool program provided a total return to society of $10.83 per dollar invested (18% annual return). The primary sources of benefits were increased earnings and tax revenues and averted criminal justice system costs. The school-age program had a societal return of $3.97 per dollar invested (10% annual return). The extended intervention program (4-6 years) had a societal return of $8.24 (18% annual return). Estimates were robust across a wide range of analyses including Monte Carlo simulations. Males, 1-year preschool participants, and children from higher risk families derived greater benefits. Findings provide strong evidence that sustained programs can contribute to well-being for individuals and society.


Asunto(s)
Intervención Educativa Precoz/economía , Educación/economía , Financiación Gubernamental/economía , Pobreza/economía , Logro , Adolescente , Adulto , Chicago , Niño , Protección a la Infancia/economía , Preescolar , Estudios de Cohortes , Análisis Costo-Beneficio/economía , Crimen/economía , Crimen/prevención & control , Educación Especial/economía , Femenino , Humanos , Renta , Estudios Longitudinales , Masculino , Evaluación de Resultado en la Atención de Salud , Estudios Prospectivos , Educación Compensatoria/economía , Investigación Biomédica Traslacional , Adulto Joven
7.
Tree Physiol ; 30(6): 728-40, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20395303

RESUMEN

Western hemlock (Tsuga heterophylla [Raf.] Sarg.) is a major component of temperate rainforests in coastal British Columbia. Forest fertilization can enhance the growth of forest trees, but results are inconsistent for western hemlock. We investigated the relationship between delta13C (foliage and stemwood), growth response and tree nutritional status in this species. To establish a sampling protocol for stemwood, we first assessed spot-to-spot variation around and along the bole, which exceeded 1 per thousand. We utilized the reaction wood (high lignin content) and adjacent normal wood in two curved western hemlock stems to evaluate whether this variation was related to wood composition. There was a consistent 3.43 per thousand difference between lignin and holocellulose, but the isotopic mass balance of whole wood was conserved and, therefore, did not vary with lignin content. Therefore, extraction of cellulose or holocellulose prior to analysis can introduce (not remove) bias. In a detailed study of a third stem, circumferential and longitudinal variation in delta13C was associated with spiral grain indicating limited physiological mixing of isotopic signatures originating from the crown. Wood was subsequently pooled from four cardinal positions around each stem. Eight even-aged western hemlock stands were selected and fertilized with different combinations of nitrogen (N), phosphorous (P) and a blend of S, K, Mg, Zn and Cu. Fertilization was effective in increasing foliar N, P, K and S depending on treatment. At the end of the first growing season after fertilization, the effect of treatments on foliar delta13C was nearly significant (P = 0.054), but did not persist into a second year. Effects on tree-ring delta13C were more obvious and persisted for about 3 years, averaging approximately 0.2-0.4 per thousand over this period, depending on treatment. Combinations of N, P and blend had the greatest effect, consistent with relative increases in basal area increment. Effects of fertilizer additions on delta13C, though clear, were superimposed on larger site and annual weather-related patterns in delta13C. Large tree-to-tree variation in delta13C was positively correlated with basal area increment, both before and after treatment imposition, suggesting that high water-use efficiencies are associated with greater growth.


Asunto(s)
Isótopos de Carbono/metabolismo , Tsuga/metabolismo , Colombia Británica , Dióxido de Carbono/metabolismo , Celulosa/metabolismo , Lignina/metabolismo , Lignina/fisiología , Fotosíntesis , Hojas de la Planta/metabolismo , Análisis de Regresión , Tsuga/crecimiento & desarrollo , Madera/análisis
8.
J Integr Med ; 17(3): 173-180, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30956141

RESUMEN

BACKGROUND: Burnout (encompassing emotional exhaustion, depersonalization and personal accomplishment) in healthcare professionals is a major issue worldwide. Emergency medicine physicians are particularly affected, potentially impacting on quality of care and attrition from the specialty. OBJECTIVE: The aim of this study was to apply an attention-based training (ABT) program to reduce burnout among emergency multidisciplinary team (MDT) members from a large urban hospital. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS: Emergency MDT members were randomized to either a no-treatment control or an intervention group. Intervention group participants engaged in a four session (4 h/session) ABT program over 7 weeks with a practice target of 20 min twice-daily. Practice adherence was measured using a smart phone application together with a wearable Charge 2 device. MAIN OUTCOME MEASURES: The primary outcome was a change in burnout, comprising emotional exhaustion, depersonalization and personal achievement. The secondary outcomes were changes in other psychological and biometric parameters. RESULTS: The ABT program resulted in a significant reduction (P < 0.05; T1 [one week before intervention] vs T3 [follow-up at two months after intervention]) in burnout, specifically, emotional exhaustion, with an effect size (probability of superiority) of 59%. Similar reductions were observed for stress (P < 0.05) and anxiety (P < 0.05). Furthermore, ABT group participants demonstrated significant improvements in heart rate variability, resting heart rate, sleep as well as an increase in pro-inflammatory cytokine expression. CONCLUSION: This study describes a positive impact of ABT on emergency department staff burnout compared to a no-treatment control group. TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT02887300.


Asunto(s)
Agotamiento Profesional/psicología , Médicos/psicología , Adulto , Atención , Servicio de Urgencia en Hospital/estadística & datos numéricos , Emociones , Femenino , Humanos , Hidrocortisona/análisis , Masculino , Persona de Mediana Edad , Saliva/química , Enseñanza , Adulto Joven
9.
Thromb Haemost ; 99(3): 570-5, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18327406

RESUMEN

In addition to their anticoagulant activity, unfractionated heparin (UFH) and low-molecular-weight heparin (LMWH) have important immunomodulatory properties. However, different studies have reported conflicting pro- and anti-inflammatory effects in association with heparin. Moreover, the molecular basis for these heparin effects on inflammation remains unclear. It was the objective of this study to determine how UFH and LMWH regulate lipopolysaccharide (LPS)-induced activation of human mononuclear cells in whole blood, and define the role of lipopolysaccharide-binding protein (LBP) in mediating this effect. Whole blood was pre-treated with UFH or LMWH (0.1-200 IU/ml), prior to stimulation with LPS (10 ng/ml). After six hours, monocyte pro-inflammatory cytokine (interleukin (IL)-1beta, IL-6, IL-8, and TNF-alpha) secretion was determined by plasma ELISA. Parallel experiments using THP-1 cell line and primary monocytes were performed under serum-free conditions, in the presence or absence of LBP (50-100 nM). Under serum-free conditions, heparin demonstrated dose-dependent anti-inflammatory effects, significantly reducing secretion of pro-inflammatory cytokines (IL-1beta, IL-6, IL-8, and TNF-alpha) in response to LPS-stimulation of THP-1 cells and primary monocytes. In contrast, in the presence of LBP, both UFH and LMWH demonstrated dose-dependent pro-inflammatory effects at all heparin concentrations. In ex-vivo whole blood experiments, pro-inflammatory effects (increased IL-1beta and IL-8 following LPS-stimulation) of heparin were also observed, but only at supra-therapeutic doses (10-200 IU/ml). Our data demonstrate that in the absence of LBP, the direct effect of heparin on LPS-stimulated monocytes is anti-inflammatory. However in whole blood, the immunomodulatory effects of heparin are significantly more complex, with either pro- or anti-inflammatory effects dependent upon heparin concentration.


Asunto(s)
Proteínas de Fase Aguda/metabolismo , Proteínas Portadoras/metabolismo , Heparina/farmacología , Factores Inmunológicos/farmacología , Inflamación/metabolismo , Leucocitos Mononucleares/efectos de los fármacos , Lipopolisacáridos/farmacología , Glicoproteínas de Membrana/metabolismo , Línea Celular , Células Cultivadas , Medio de Cultivo Libre de Suero , Relación Dosis-Respuesta a Droga , Heparina de Bajo-Peso-Molecular/farmacología , Humanos , Inflamación/inmunología , Mediadores de Inflamación/metabolismo , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Interleucina-8/metabolismo , Leucocitos Mononucleares/inmunología , Leucocitos Mononucleares/metabolismo , Factores de Tiempo , Factor de Necrosis Tumoral alfa/metabolismo
10.
Blood Coagul Fibrinolysis ; 19(7): 689-92, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18832911

RESUMEN

Low molecular weight heparin (LMWH) is widely regarded as the anticoagulant treatment of choice for the prevention and treatment of venous thromboembolism during pregnancy. However, previous studies have demonstrated that the pharmacokinetic profiles of LMWH vary significantly with increasing gestation. Consequently, it remains unclear whether LMWH regimens recommended for use in nonpregnant individuals can be safely extrapolated to pregnant women. The aims of this study were to assess the safety and the efficacy of tinzaparin sodium (Innohep) administered only once daily during pregnancy. A systematic retrospective review identified a cohort of 37 high-risk pregnancies which had been managed using tinzaparin 175 IU/kg once daily. In 26 cases, the index pregnancy had been complicated by development of an acute venous thromboembolism (17 deep vein thrombosis and nine pulmonary embolism). For each individual, case notes were examined and data extracted using a predetermined questionnaire. No episodes of recurrent venous thromboembolism were identified amongst this cohort of pregnancies managed using once daily LMWH administration. However, two unusual thrombotic complications were observed, including a parietal infarct in one patient, and a postpartum cerebral venous thrombosis in another. Once daily tinzaparin was well tolerated, with no cases of heparin-induced thrombocytopaenia, symptomatic osteoporosis, or foetal malformations. Tinzaparin dose modification based upon peak anti-Xa levels occurred in 45% of the cases examined. The present study is the largest study to have examined the clinical efficacy of once daily LMWH for use in pregnant women at high risk of venous thromboembolism. Our data support the safety and efficacy of antenatal tinzaparin at a dose of 175 IU/kg. In order to determine whether this once daily regimen provides equivalent (or indeed greater) thromboprophylaxis to twice daily LMWH regimens during pregnancy will require highly powered direct comparative studies.


Asunto(s)
Fibrinolíticos/administración & dosificación , Heparina de Bajo-Peso-Molecular/administración & dosificación , Complicaciones Hematológicas del Embarazo/prevención & control , Tromboembolia Venosa/prevención & control , Adulto , Estudios de Cohortes , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Fibrinolíticos/efectos adversos , Fibrinolíticos/sangre , Heparina de Bajo-Peso-Molecular/efectos adversos , Heparina de Bajo-Peso-Molecular/sangre , Humanos , Embarazo , Complicaciones Hematológicas del Embarazo/sangre , Complicaciones Hematológicas del Embarazo/tratamiento farmacológico , Resultado del Embarazo , Embarazo de Alto Riesgo , Estudios Retrospectivos , Tinzaparina , Tromboembolia Venosa/sangre , Tromboembolia Venosa/tratamiento farmacológico , Adulto Joven
11.
Front Plant Sci ; 9: 858, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29988528

RESUMEN

Given the habitat moisture (air humidity or soil moisture) preferences of many forest bryophytes, we explored whether the depth-to-water (DTW) index, derived from remotely sensed Light Detection and Ranging (LiDAR) data, was related to fine-scale patterns of spatial variation in bryophyte abundance, diversity, and composition. The goal was to assess the utility of the topographic DTW index as a tool to decipher trends in bryophyte assemblages along a site wetness gradient in the boreal mixedwood forest. Discrete Airborne Laser Scanning (ALS) data were acquired over the entire Ecosystem Management Emulating Natural Disturbance (EMEND) experimental site located in northwestern Alberta, Canada (56° 46' 13″ N, 118° 22' 28″ W), based on which we calculated a mathematical index of approximate depth to water at or below the soil surface at 1 m resolution using the Wet-Areas Mapping model. Bryophytes (mosses and liverworts) were sampled in permanent sample plots in unmanaged forest stands of varying dominant canopy tree composition. The relationships between DTW and bryophyte cover, richness, diversity, and composition in broadleaf (deciduous)-, mixed, and conifer-dominated boreal forest stands were analyzed using linear mixed-effect models and multivariate analyses. Bryophyte cover was highest in conifer-dominated forest, which occupied the wetter end of the DTW gradient, followed by mixed forest, whereas broadleaf forest, which occupied the drier end of the DTW gradient, had the lowest cover but highest bryophyte diversity. Bryophyte cover in conifer-dominated forests was positively related to site moisture (negatively related to the DTW index). In contrast, bryophyte species richness and diversity were negatively related to site moisture (increased at higher DTW values) in all forest types. DTW explained significant variation in bryophyte species composition in mixed forests, while indicator species analysis identified species with preferences for wet, moist, and dry site conditions in each forest type. Our results corroborate the importance of site moisture as a driver of bryophyte assemblages but, interestingly, there were important differences among forest types, which themselves are distributed across a gradient of site moisture. Our study demonstrates the utility of the topographic DTW index for understanding fine-scale (plot-level) variation in bryophyte assemblages in forested landscapes.

12.
BMJ Open ; 8(9): e020685, 2018 09 24.
Artículo en Inglés | MEDLINE | ID: mdl-30249626

RESUMEN

OBJECTIVES: Rates of burnout and stress in healthcare practitioners are steadily increasing. Emergency department (ED) staff are particularly susceptible to such poor outcomes. Mantra meditation (MM) may contribute to increased well-being. The primary aim of this study was to obtain indepth qualitative feedback on ED staff's experience of a MM programme. A secondary objective was to harness staff's perception of the ED working environment. DESIGN: Qualitative study. SETTING: ED in St James' Hospital, Dublin, Ireland. PARTICIPANTS: Doctors, nurses, allied health professionals and administrative staff (n=10, eight women, mean age 35.6 years) working in the ED who attended a MM programme. METHODS: Semistructured interviews were conducted by a trained independent researcher. Interviews were transcribed and thematically analysed. RESULTS: Five main themes and six subthemes were identified: work pressure and perceived stress; perceived benefits of meditation (with subthemes of increased attention/awareness, improved emotion regulation and new coping mechanisms, relaxation and sleep quality); conflicting attitudes to practice; barriers to meditation practice (with subthemes of schedule, length of practice and individual differences); and facilitators to practice. CONCLUSION: ED staff in this study described the demands of their work and voiced a need for a workplace well-being programme. Our findings suggest that MM might represent a viable tool to develop attention and awareness, improve emotion regulation and improve their capacity to cope with stress, which may impact their workplace well-being, wider health service, patient safety and quality of care. Support from the organisation is considered to be integral to embedding of a workplace well-being programme, such as the practice of meditation into their daily lives.


Asunto(s)
Agotamiento Profesional/prevención & control , Servicio de Urgencia en Hospital , Meditación/métodos , Personal de Hospital/psicología , Adaptación Psicológica , Adulto , Atención , Actitud del Personal de Salud , Inteligencia Emocional , Femenino , Humanos , Entrevistas como Asunto , Masculino , Investigación Cualitativa , Relajación , Sueño , Carga de Trabajo/psicología , Lugar de Trabajo/psicología
13.
Spine (Phila Pa 1976) ; 43(14): 999-1006, 2018 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-29189573

RESUMEN

STUDY DESIGN: National, multicenter, cross-sectional study. OBJECTIVE: The goal of this study was to provide overall quality of life (QOL) and health utility (HU) values for patients with traumatic spinal cord injury (SCI) stratified by injury level and neurological status. SUMMARY OF BACKGROUND DATA: Traumatic SCI is a leading cause of disability. Varying injury level and severity generate a spectrum of neurological dysfunction and reduction in long-term QOL. METHODS: The Canadian SCI Community Survey was sent to Canadians living in the community after SCI. The impact of demographics, complications, and SCI classification on QOL was assessed using Analysis of variance, multiple linear regressions and ordinal logistic regression analyses. RESULTS: There were 1109 respondents with traumatic SCI. american spinal injury association impairment scale (AIS) grade was reported to be cervical motor complete in 20%, cervical motor incomplete in 28%, thoracolumbar motor complete in 32%, thoracolumbar motor incomplete in 16%, and normal (any level) in 1%. Injury level or AIS grade had no impact on either HU or QOL. The physical component of health-related quality of life (HRQOL) was significantly affected by the neurological level, but not the social or mental components. With a mean health utility score of 0.64 ±â€Š0.12, SCI patients living in the community reported having HRQOL similar to patients after total knee arthroplasty or lumbar spinal stenosis decompression. CONCLUSION: QOL or HU measured by generic HRQOL outcome tools should not be used as outcomes to assess the effectiveness of interventions targeting neurological function in traumatic SCI. A disease-specific instrument that captures the nuances specific to spinal cord injury patients is required. LEVEL OF EVIDENCE: 1.


Asunto(s)
Aceptación de la Atención de Salud/psicología , Calidad de Vida/psicología , Traumatismos de la Médula Espinal/epidemiología , Traumatismos de la Médula Espinal/psicología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Canadá/epidemiología , Vértebras Cervicales/lesiones , Estudios Transversales , Femenino , Humanos , Vértebras Lumbares/lesiones , Masculino , Persona de Mediana Edad , Traumatismos de la Médula Espinal/diagnóstico , Vértebras Torácicas/lesiones , Adulto Joven
14.
Blood Adv ; 2(14): 1784-1791, 2018 07 24.
Artículo en Inglés | MEDLINE | ID: mdl-30042144

RESUMEN

Gynecological bleeding is frequently reported in women with von Willebrand disease (VWD). Low von Willebrand factor (VWF) may be associated with significant bleeding phenotype despite only mild plasma VWF reductions. The contribution of gynecological bleeding to this phenotype has yet to be described. The optimal clinical bleeding assessment tool (BAT) to evaluate bleeding remains unclear. Using a standardized approach to phenotypic assessment, we evaluated gynecological bleeding and directly compared the Condensed Molecular and Clinical Markers for the Diagnosis and Management of type 1 VWD (Condensed MCMDM-1 VWD) and International Society on Thrombosis and Haemostasis (ISTH) BAT scores in 120 women enrolled in the Low von Willebrand in Ireland Cohort study. Heavy menstrual bleeding (HMB) was reported in 89% of female participants; 45.8% developed iron deficiency. Using identical data, Condensed MCMDM-1 VWD menorrhagia domain scores were significantly lower than ISTH BAT scores (2 vs 3; P < .0001), the discrepant results related to 40% of women not seeking medical consultation for HMB, reducing the sensitivity of the Condensed score. For those who reported HMB to physicians, the low VWF diagnosis was not expedited (age at diagnosis 34.2 vs 33.4 years in women failing to present; P = .7). Postpartum hemorrhage (PPH) was self-reported in 63.5% of parous women (n = 74); 21.6% required transfusion, critical care, radiological, or surgical intervention. Our data demonstrate that gynecological bleeding is frequently reported in women with low VWF; despite pregnancy-related increases in plasma VWF levels, these women may experience PPH. Defining the optimal management approach for these patients requires further research. This trial was registered at www.clinicaltrials.gov as #NCT03167320.


Asunto(s)
Menorragia/sangre , Hemorragia Posparto/sangre , Factor de von Willebrand/metabolismo , Adolescente , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Embarazo
15.
Thromb Haemost ; 98(6): 1188-92, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18064312

RESUMEN

This retrospective survey of haemophilia A patients from multiple treatment centres in Ireland assessed the development of inhibitors following a switch in the prescribed treatment from recombinant factor VIII (rFVIII) produced by Chinese hamster ovary (CHO) cells (rFVIII-CHO) to rFVIII produced by baby hamster kidney (BHK) cells (rFVIII-BHK). Ninety-four patients participated in the survey. Most patients (89.4%) had severe haemophilia. One of 77 (1.3%) patients with no inhibitor history developed an inhibitor. This was a patient with moderate haemophilia. A who developed a transient, low-titre (1 BU) de novo inhibitor following surgery. Recurrent inhibitors were detected in three of 17 patients with an inhibitor history during the 20-month post-switch study period. All patients continued on rFVIII-BHK therapy, and all tested negative for inhibitors at the time of their last inhibitor assay during the observation period. These results are consistent with the low levels of inhibitor formation demonstrated in phase III studies of previously treated patients receiving BHK-produced rFVIII and support the low risk of inhibitor formation following a change from rFVIII-CHO to rFVIII-BHK.


Asunto(s)
Inhibidores de Factor de Coagulación Sanguínea/sangre , Células CHO/metabolismo , Coagulantes/metabolismo , Coagulantes/uso terapéutico , Factor VIII/biosíntesis , Factor VIII/uso terapéutico , Hemofilia A/tratamiento farmacológico , Riñón/metabolismo , Adolescente , Adulto , Animales , Niño , Cricetinae , Cricetulus , Factor VIII/genética , Encuestas de Atención de la Salud , Humanos , Irlanda , Riñón/citología , Proteínas Recombinantes/biosíntesis , Proteínas Recombinantes/uso terapéutico , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
16.
Nutr J ; 6: 40, 2007 Nov 12.
Artículo en Inglés | MEDLINE | ID: mdl-17997845

RESUMEN

BACKGROUND: Metabolic rate is known to rise above basal levels after eating, especially following protein consumption. Yet, this postprandial rise in metabolism appears to vary among individuals. This study examined changes in energy expenditure in response to ingestion of a high protein, high fat (HPHF) meal versus an isocaloric high protein, low fat (HPLF) meal in underweight, normal weight, or overweight females (n = 21) aged 19-28 years. METHODS: Energy expenditure, measured using indirect calorimetry, was assessed before and every 30 minutes for 3.5 hours following consumption of the meals on two separate occasions. Height and weight were measured using standard techniques. Body composition was measured using bioelectrical impedance analysis. RESULTS: Significant positive correlations were found between body mass index (BMI) and baseline metabolic rate (MR) (r = 0.539; p = 0.017), between body weight and baseline MR (r = 0.567; p = 0.011), between BMI and average total change in MR (r = 0.591; p = 0.008), and between body weight and average total change in MR (r = 0.464; p = 0.045). Metabolic rate (kcal/min) was significantly higher in the overweight group than the normal weight group, which was significantly higher than the underweight group across all times and treatments. However, when metabolic rate was expressed per kg fat free mass (ffm), no significant difference was found in postprandial energy expenditure between the overweight and normal groups. Changes in MR (kcal/min and kcal/min/kg ffm) from the baseline rate did not significantly differ in the underweight (n = 3) or in the overweight subjects (n = 5) following consumption of either meal at any time. Changes in MR (kcal/min and kcal/min/kg ffm) from baseline were significantly higher in normal weight subjects (n = 11) across all times following consumption of the HPHF meal versus the HPLF meal. CONCLUSION: There is no diet-induced thermogenic advantage between the HPHF and HPLF meals in overweight and underweight subjects. In contrast, in normal weight subjects, ingestion of a HPHF meal significantly increases MR (69.3 kcal/3.5 hr) versus consumption of a HPLF meal and provides a short-term metabolic advantage.


Asunto(s)
Grasas de la Dieta/administración & dosificación , Proteínas en la Dieta/administración & dosificación , Metabolismo Energético/efectos de los fármacos , Sobrepeso/metabolismo , Delgadez/metabolismo , Adulto , Metabolismo Basal/fisiología , Composición Corporal/fisiología , Índice de Masa Corporal , Calorimetría Indirecta , Estudios Cruzados , Relación Dosis-Respuesta a Droga , Metabolismo Energético/fisiología , Femenino , Humanos , Periodo Posprandial , Factores de Tiempo
17.
J Neurotrauma ; 34(20): 2892-2900, 2017 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-28791891

RESUMEN

Secondary complications of spinal cord injury (SCI) are a burden to affected individuals and the rest of society. There is limited evidence of the economic burden or cost of complications in SCI populations in Canada, however, which is necessary for comparative economic analyses and decision analytic modeling of possible solutions to these common health problems. Comparative economic analyses can inform resource allocation decisions, but the outputs are only as good as the inputs. In this article, new evidence of the excess or incremental costs of urinary tract infection (UTI) and pressure ulceration (PU) in acute traumatic SCI from an exploratory case series analysis of admissions to a Level I specialized Canadian spine facility (2008-2013) is presented. Participants in a national SCI registry were case-control matched (1:1) on the predicted probability of experiencing UTI or PU during initial acute SCI admission. The excess costs of UTI and PU are estimated as the mean of the differences in total direct acute SCI admission costs (length of stay, accommodation, nursing, pharmacy) from the perspective of the admitting facility between participants matched or paired on demographic and SCI characteristics. Even relatively minor UTI and PU, respectively, added an average of $7,790 (standard deviation [SD] $6,267) and $18,758 (SD $27,574) to the direct cost of acute SCI admission in 2013 Canadian dollars (CAD). This case series analysis established evidence of the excess costs of UTI and PU in acute SCI admissions, which will support decision-informing analyses in SCI.


Asunto(s)
Úlcera por Presión/etiología , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/economía , Infecciones Urinarias/etiología , Adulto , Canadá , Estudios de Casos y Controles , Costo de Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Úlcera por Presión/economía , Infecciones Urinarias/economía
18.
J Neurotrauma ; 34(20): 2924-2933, 2017 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-28745934

RESUMEN

Timely access and ongoing delivery of care and therapeutic interventions is needed to maximize recovery and function after traumatic spinal cord injury (tSCI). To ensure these decisions are evidence-based, access to consistent, reliable, and valid sources of clinical data is required. The Access to Care and Timing Model used data from the Rick Hansen SCI Registry (RHSCIR) to generate a simulation of healthcare delivery for persons after tSCI and to test scenarios aimed at improving outcomes and reducing the economic burden of SCI. Through model development, we identified knowledge gaps and challenges in the literature and current health outcomes data collection throughout the continuum of SCI care. The objectives of this article were to describe these gaps and to provide recommendations for bridging them. Accurate information on injury severity after tSCI was hindered by difficulties in conducting neurological assessments and classifications of SCI (e.g., timing), variations in reporting, and the lack of a validated SCI-specific measure of associated injuries. There was also limited availability of reliable data on patient factors such as multi-morbidity and patient-reported measures. Knowledge gaps related to structures (e.g., protocols) and processes (e.g., costs) at each phase of care have prevented comprehensive evaluation of system performance. Addressing these knowledge gaps will enhance comparative and cost-effectiveness evaluations to inform decision-making and standards of care. Recommendations to do so were: standardize data element collection and facilitate database linkages, validate and adopt more outcome measures for SCI, and increase opportunities for collaborations with stakeholders from diverse backgrounds.


Asunto(s)
Neurología/normas , Sistema de Registros , Traumatismos de la Médula Espinal , Continuidad de la Atención al Paciente/normas , Humanos , Evaluación de Resultado en la Atención de Salud/normas
19.
Can J Pain ; 1(1): 183-190, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-35005353

RESUMEN

Background: Optimal management of neuropathic pain (NP) is essential to enhancing health-related quality of life for individuals living with spinal cord injury (SCI). A key strategic priority for the Ontario Neurotrauma Foundation (ONF) and Rick Hansen Institute (RHI) is optimizing NP management after SCI. Aims: A National Canadian Summit, sponsored by ONF and RHI, was held to develop a strategic plan to improve NP management after SCI. Methods: In a one-day meeting held in Toronto, Ontario, a multidisciplinary panel of 18 Canadian stakeholders utilized a consensus workshop methodology to (1) describe the current state of the field, (2) create a long-term vision, and (3) identify steps for moving into action. Results: A review of the current state of the field identified strengths including rigourously developed evidence syntheses and practice landscape documentation. Identified gaps included limited evidence on NP hindering recommendation development in evidence syntheses, absence of a national strategy, care silos with limited cross-continuum connections, limited consumer involvement, and limited practice standard implementation. The panel identified key themes for a long-term vision to improve the management of SCI NP in Canada, including establishing an integrated collaborative network; standardized care and outcome evaluation; education; advocacy; and directing resources to innovative solutions. The panel identified the next step as prioritization of areas that will have the greatest impact in a 5-year time frame. Conclusion: A strategic plan outlining a long-term vision to improve management of NP after SCI in Canada was developed and will inform future activities of the sponsors.


Contexte: La gestion optimale de la douleur neuropathique est essentielle à l'amélioration de la qualité de vie liée à la santé des personnes vivant avec une lésion de la moelle épinière. L'une des priorités stratégiques de la Fondation ontarienne de neurotraumatologie et de l'Institut Rick Hansen est l'optimisation de la prise en charge de la douleur neuropathique après une lésion de la moelle épinière.Buts: Un sommet national canadien parrainé par la Fondation ontarienne de neurotraumatologie et l'Institut Rick Hansen a été tenu afin d'élaborer un plan stratégique pour l'amélioration de la gestion de la douleur neuropathique après une lésion de la moelle épinière.Méthodes: Dans le cadre d'une rencontre d'une journée tenue à Toronto, Ontario, un panel multidisciplinaire composé de 18 parties prenantes canadiennes a eu recours à la méthodologie de l'atelier consensuel pour (1) décrire la situation actuelle dans le domaine, (2) définir une vision à long terme et (3) déterminer les étapes à suivre pour passer à l'action.Résultats: Une revue de la situation actuelle dans le domaine a permis d'en répertorier les forces, parmi lesquelles on compte des synthèses de données probantes élaborées avec rigueur et la documentation des pratiques. Les lacunes suivantes ont été répertoriées: des données probantes limitées en ce qui concerne la formulation de recommandations pour empêcher la douleur neuropathique dans les synthèses de données probantes; l'absence de stratégie nationale; un mode de prestation des soins en silos, où les liens entre les continuums sont limités; une participation du consommateur limitée et une mise en œuvre limitée des normes de pratique. Le panel a répertorié les grands thèmes pour élaborer une vision à long terme afin d'améliorer la prise en charge de la douleur neuropathique occasionnée par une lésion de la moelle épinière au Canada, parmi lesquels on compte: l'établissement d'un réseau de collaboration intégré; la normalisation des soins et l'évaluation des résultats; l'éducation; le plaidoyer; et l'attribution de ressources aux solutions novatrices. Le panel a déterminé que la prochaine étape consisterait à prioriser les domaines qui auront le plus de répercussions au cours des cinq prochaines années.Conclusion: Un plan stratégique définissant une vision à long terme pour améliorer la prise en charge de la douleur neuropathique après une lésion de la moelle épinière a été élaboré. Ce plan servira de base aux prochaines activités des promoteurs.

20.
J Neurotrauma ; 33(15): 1422-7, 2016 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-27002855

RESUMEN

We sought to determine the economic burden of autonomic dysreflexia (AD) from the perspective of the Canadian healthcare system in a case series of individuals with spinal cord injury (SCI) presenting to emergency care. In doing so, we sought to illustrate the potential return on investments in the translation of evidence-informed practices and developments in the prevention, diagnosis, and management of AD. Activity-based costing methodology was employed to estimate the direct healthcare or hospitalization costs of AD following presentation to the emergency department. Differences in trends were noted between patients who were promptly diagnosed, managed, and discharged, and patients whose experience followed a less direct or ideal path to discharge. We recorded 29 emergency room visits for conditions ultimately diagnosed as AD. Overall, median length of stay was 3 days (interquartile range [IQR] = 1.25-5.75), but extended up to 103 consecutive days. Cost analysis revealed median healthcare costs of $5029 (IQR = $2397-9522) for hospital admissions for AD, with the highest estimated hospital cost for a single admission > $190,000. Emergency room admissions resulting from AD can result in dramatic healthcare costs. Delayed diagnosis and inefficient management of AD may lead to further complications, adding to the strain on already limited healthcare resources. Prompt recognition of AD; broader translation of evidence-informed practices; and novel diagnosis, self-management, and/or therapeutic/pharmaceutical applications may prove to mitigate the burden of AD and improve patient well-being.


Asunto(s)
Disreflexia Autónoma/economía , Disreflexia Autónoma/etiología , Traumatismos de la Médula Espinal/complicaciones , Canadá , Costo de Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad
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