28 research outputs found

    Determinación de procesos de fractura sobre huesos frescos: un sistema de análisis de los ángulos de los planos de fracturación como discriminador de agentes bióticos

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    The breakage planes of bones have diversely been used to classify breakage patterns. However, no diagnosis seems to be currently valid to differentiate between humans and carnivores as the main breaking agents. This work presents the results of experimentation focused on the analysis of the angles of each plane between the cortical and medullary surfaces resulting from breakage. It is shown that this approach can be fairly resolutive since both types of agents break bones through different physical processes (percussion and pression) which produce different angles in each fracture episode, as a result of the use of dynamic and static loading processes.Los paños de fractura de los huesos siempre se han prestado a diversos análisis de clasificación, pero con menor éxito se ha podido averiguar el (los) agente(s) responsable( s) de su ruptura. De los diversos atributos utilizados, uno de ellos (los ángulos de los planos de fractura) se ha sometido a exhaustivo análisis, con los resultados que se ofrecen en el presente trabajo. Se concluye que dichos ángulos, en su consideración global en una muestra pueden ser resolutivos ya que los diversos agentes bióticos que rompen huesos (humanos y carnívoros) lo hacen por procesos físicos distintos (percusión y presión) que provocan diagnosis diferenciadas en el modo en que los huesos aparecen fracturados

    Neuromyelitis optica spectrum disorders. Comparison according to the phenotype and serostatus

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    Objective: To (1) determine the value of the recently proposed criteria of neuromyelitis optica (NMO) spectrum disorder (NMOSD) that unify patients with NMO and those with limited forms (NMO/LF) with aquaporin-4 immunoglobulin G (AQP4-IgG) antibodies; and (2) investigate the clinical significance of the serologic status in patients with NMO. Methods: This was a retrospective, multicenter study of 181 patients fulfilling the 2006 NMO criteria (n = 127) or NMO/LF criteria with AQP4-IgG (n = 54). AQP4-IgG and myelin oligodendrocyte glycoprotein immunoglobulin G (MOG-IgG) antibodies were tested using cell-based assays. Results: Patients were mainly white (86%) and female (ratio 6.5:1) with median age at onset 39 years (range 10-77). Compared to patients with NMO and AQP4-IgG (n = 94), those with NMO/LF presentedmore often with longitudinally extensive transverse myelitis (LETM) (p<0.001), and had lower relapse rates (p = 0.015), but similar disability outcomes. Nonwhite ethnicity and optic neuritis presentation doubled the risk for developing NMO compared with white race (p = 0.008) or LETM presentation (p = 0.008). Nonwhite race (hazard ratio [HR] 4.3, 95% confidence interval [CI] 1.4-13.6) and older age at onset were associated with worse outcome (for every 10-year increase, HR 1.7, 95% CI 1.3-2.2). Patients with NMO and MOG-IgG (n = 9) had lower female: male ratio (0.8:1) and better disability outcome than AQP4-IgG-seropositive or double-seronegative patients (p<0.001). Conclusions: In patients with AQP4-IgG, the similar outcomes regardless of the clinical phenotype support the unified term NMOSD; nonwhite ethnicity and older age at onset are associated with worse outcome. Double-seronegative and AQP4-IgG-seropositive NMO have a similar clinical outcome. The better prognosis of patients with MOG-IgG and NMO suggests that phenotypic and serologic classification is useful

    Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

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    Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

    Effectiveness of an intervention for improving drug prescription in primary care patients with multimorbidity and polypharmacy:Study protocol of a cluster randomized clinical trial (Multi-PAP project)

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    This study was funded by the Fondo de Investigaciones Sanitarias ISCIII (Grant Numbers PI15/00276, PI15/00572, PI15/00996), REDISSEC (Project Numbers RD12/0001/0012, RD16/0001/0005), and the European Regional Development Fund ("A way to build Europe").Background: Multimorbidity is associated with negative effects both on people's health and on healthcare systems. A key problem linked to multimorbidity is polypharmacy, which in turn is associated with increased risk of partly preventable adverse effects, including mortality. The Ariadne principles describe a model of care based on a thorough assessment of diseases, treatments (and potential interactions), clinical status, context and preferences of patients with multimorbidity, with the aim of prioritizing and sharing realistic treatment goals that guide an individualized management. The aim of this study is to evaluate the effectiveness of a complex intervention that implements the Ariadne principles in a population of young-old patients with multimorbidity and polypharmacy. The intervention seeks to improve the appropriateness of prescribing in primary care (PC), as measured by the medication appropriateness index (MAI) score at 6 and 12months, as compared with usual care. Methods/Design: Design:pragmatic cluster randomized clinical trial. Unit of randomization: family physician (FP). Unit of analysis: patient. Scope: PC health centres in three autonomous communities: Aragon, Madrid, and Andalusia (Spain). Population: patients aged 65-74years with multimorbidity (≥3 chronic diseases) and polypharmacy (≥5 drugs prescribed in ≥3months). Sample size: n=400 (200 per study arm). Intervention: complex intervention based on the implementation of the Ariadne principles with two components: (1) FP training and (2) FP-patient interview. Outcomes: MAI score, health services use, quality of life (Euroqol 5D-5L), pharmacotherapy and adherence to treatment (Morisky-Green, Haynes-Sackett), and clinical and socio-demographic variables. Statistical analysis: primary outcome is the difference in MAI score between T0 and T1 and corresponding 95% confidence interval. Adjustment for confounding factors will be performed by multilevel analysis. All analyses will be carried out in accordance with the intention-to-treat principle. Discussion: It is essential to provide evidence concerning interventions on PC patients with polypharmacy and multimorbidity, conducted in the context of routine clinical practice, and involving young-old patients with significant potential for preventing negative health outcomes. Trial registration: Clinicaltrials.gov, NCT02866799Publisher PDFPeer reviewe

    Safety study of umbilical single-port laparoscopic radical prostatectomy with a new duorotate system

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    Laparoendoscopic single-site (LESS) radical prostatectomy (RP) has been performed through different approaches. A new DuoRotate manual system developed by Richard Wolf (KeyPort; Richard Wolf GmbH, Knittlingen, Germany) can be applied to RP. Our aim was to describe the surgical technique and report early outcomes of KeyPort LESS-RP to determine if this procedure is feasible and safe. Prospective study performed between October 2011 and January 2012 to standardize LESS-RP. A total of 31 procedures were performed (10 with and 21 without neurovascular preservation, 8 with and 23 without pelvic lymph node dissection).13.938 JCR (2014) Q1, 1/76 Urology & nephrologyUE

    Umbilical Single-Port Pyelolithectomy on Horseshoe Kidney: a New Indication

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    Laparoscopic surgery through a single port is an evolution of laparoscopic surgery, possible after recent technological development of new access systems. It is an established minimally invasive technique, although its indications in the field of Urology1.144 JCR (2012) Q4, 57/73 Urology & nephrolog

    Current state of single-port transumbilical surgery in urology: challenges and applications

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    La cirugía laparoscópica en urología ha supuesto un avance importante, aunque no está exenta de cierta morbilidad asociada al empleo de múltiples trocares y de forma particular a la extracción del espécimen. Con intención de disminuir esta morbilidad y de mejorar la estética se están desarrollado otras técnicas, como la cirugía laparoendoscópica a través de orificios naturales (NOTES) y la cirugía laparoendoscópica a través de puerto único (LESS). Se pretende revisar el estado actual de la cirugía laparoendoscópica por puerto único en urología.1.148 JCR (2013) Q4, 57/75 Urology & nephrolog
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