15 research outputs found

    Predictive Value for Increased Red Blood Cell Distribution Width in Unprovoked Acute Venous Thromboembolism at the Emergency Department

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    Observational StudyAcute venous thromboembolism (VTE) is a common worldwide disease admitted to emergency departments (ED), usually presenting as pulmonary embolism or lower limb deep vein thrombosis (DVT). Due to the lack of typical clinical and biomarker diagnostic features of unprovoked VTE, early identification is challenging and has direct consequences on correct treatment delay. Longitudinal, prospective, observational study. Patients admitted to ED with a suspicion of unprovoked acute VTE between October 2020 and January 2021 were included. Clinical and laboratorial variables were compared between VTE positive and negative diagnoses. Red cell distribution width (RDW) cut point was determinate through a receiver operating characteristic analysis. RDW accuracy, sensitivity, and specificity were calculated. Fifty-eight patients were analyzed. And 82.8% of suspected patients with VTE were diagnosed with an acute thrombotic event confirmed by imaging examination. In patients with VTE, RDW at admission in ED was higher than with other diagnosis, respectively, 14.3% (13.2-15.1) and 13.5% (13.0-13.8). Platelet count was the only additional characteristic that revealed difference between the 2 groups (264×109/L for VTE and 209×109/L for non-VTE). Logistic regression models showed good discriminatory values for RDW≥14%, with an area under the curve (AUC) = 0.685 (95% confidence interval, 0.535-0.834). These findings were more pronounced in isolated DVT, with a sensitivity of 76.9%, specificity 100%, and accuracy 85.7%. Our study demonstrated a significant association between an early high RDW and the diagnosis of acute unprovoked DVT. RDW ≥ 14% has an independent predictor of unprovoked VTE in adult patientsFunding: The present study has been partially financed by Faculdade de Medicina da Universidade do Porto, in the context of the Doctoral Program of Medicine.info:eu-repo/semantics/publishedVersio

    Design and Control of an Omni-Directional Mobile Robot

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    This paper introduces an omni-directional mobile robot for educational purposes. The robot has full omni-directional motion capabilities, thanks to its special Mecanum wheels. The paper provides some information about conventional and special wheels designs, mechanical design aspects of the Mecanum wheel and also electronics and control strategies: remote control, line follow, autonomous strategy

    Design and Control of an Omni-Directional Mobile Robot

    No full text
    This paper introduces an omni-directional mobile robot for educational purposes. The robot has full omni-directional motion capabilities, thanks to its special Mecanum wheels. The paper provides some information about conventional and special wheels designs, mechanical design aspects of the Mecanum wheel and also electronics and control strategies: remote control, line follow, autonomous strategy

    Predictive Value for Increased Red Blood Cell Distribution Width in Unprovoked Acute Venous Thromboembolism at the Emergency Department

    Get PDF
    Acute venous thromboembolism (VTE) is a common worldwide disease admitted to emergency departments (ED), usually presenting as pulmonary embolism or lower limb deep vein thrombosis (DVT). Due to the lack of typical clinical and biomarker diagnostic features of unprovoked VTE, early identification is challenging and has direct consequences on correct treatment delay. Longitudinal, prospective, observational study. Patients admitted to ED with a suspicion of unprovoked acute VTE between October 2020 and January 2021 were included. Clinical and laboratorial variables were compared between VTE positive and negative diagnoses. Red cell distribution width (RDW) cut point was determinate through a receiver operating characteristic analysis. RDW accuracy, sensitivity, and specificity were calculated. Fifty-eight patients were analyzed. And 82.8% of suspected patients with VTE were diagnosed with an acute thrombotic event confirmed by imaging examination. In patients with VTE, RDW at admission in ED was higher than with other diagnosis, respectively, 14.3% (13.2-15.1) and 13.5% (13.0-13.8). Platelet count was the only additional characteristic that revealed difference between the 2 groups (264×10 9 /L for VTE and 209×10 9 /L for non-VTE). Logistic regression models showed good discriminatory values for RDW≥14%, with an area under the curve (AUC) = 0.685 (95% confidence interval, 0.535-0.834). These findings were more pronounced in isolated DVT, with a sensitivity of 76.9%, specificity 100%, and accuracy 85.7%. Our study demonstrated a significant association between an early high RDW and the diagnosis of acute unprovoked DVT. RDW ≥ 14% has an independent predictor of unprovoked VTE in adult patients

    TB and MDR/XDR-TB in European Union and European Economic Area countries: managed or mismanaged?

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    In spite of the growing awareness of emerging drug-resistant Mycobacterium tuberculosis, the extent of inappropriate tuberculosis (TB) case management may be underestimated, even in Europe. We evaluated TB case management in the European Union/European Economic Area countries, with special focus on multidrug-resistant (MDR) and extensively drug-resistant (XDR)-TB, using a purposely developed, standardised survey tool. National reference centres in five countries representing different geographical, socioeconomic and epidemiological patterns of TB in Europe were surveyed. 40 consecutive, original clinical TB case records (30 MDR/XDR-TB cases) were reviewed in each of the five countries. The findings were recorded and, through the survey tool, compared with previously agreed and identified international standards. Deviations from international standards of TB care were observed in the following areas: surveillance (no information available on patient outcomes); infection control (lack of respiratory isolation rooms/procedures and negative-pressure ventilation rooms); clinical management of TB, MDR-TB and HIV co-infection (inadequate bacteriological diagnosis, regimen selection and treatment duration); laboratory support; and diagnostic/treatment algorithms. Gaps between present international standards of care and the management of MDR/XDR-TB patients were identified. Training, increased awareness, promotion of standards and allocation of appropriate resources are necessary to ensure appropriate care and management as well as to prevent further emergence of drug resistance.</br

    Availability of anti-tuberculosis drugs in Europe

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    The emergence of multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) represents a major threat to TB control globally and, specifically, in Europe. MDR-/XDR-TB is at large due to clinical mismanagement of drug-susceptible and drug-resistant TB cases as well as to transmission of resistant strains [1–3]. Continuous availability of quality-controlled drugs is a prerequisite to ensure correct clinical management of TB patients. Comprehensive and updated information on the availability and registration procedures of first-line (FLD) and second-line (SLD) anti-TB drugs is not available, neither in Europe nor elsewhere. Anecdotal evidence suggested that in most European Union (EU) countries, where TB has a low incidence, procurement procedures are decentralised (not through Global Drug Facility, GDF), and with no specific responsibility for TB drug procurement available at the ministerial level. Despite high costs of SLD, registration procedures are strong enough to potentially prevent marketing and prescription of poor quality drugs. FLD and SLD are usually available (with mechanisms to prevent stock-outs), although the low number of drug doses sold can create challenges in assuring their continuous availability

    TB and M/XDR-TB infection control in European TB reference centres: the Achilles’ heel?

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    The emergence of multidrug-resistant (MDR) tuberculosis (TB), defined as in vitro resistance to isoniazid and rifampicin, and extensively drug-resistant (XDR)-TB, defined as in vitro drug resistance to isoniazid and rifampicin plus any fluoroquinolone and at least one of the injectable drugs (amikacin, capreomycin or kanamycin), represents a major threat to TB control at the global level. XDR-TB is a manmade product, resulting, in essence, from clinical mismanagement of newly diagnosed susceptible and resistant TB cases. Moreover, existing MDR/XDR-TB cases must be promptly detected and treated, and the transmission from infectious source cases has to be prevented, particularly in nosocomial settings. The World Health Organization (WHO), in its Stop TB Strategy and its recent Policy on Infection Control, clearly underlines the importance of implementing effective measures of infection control in clinical facilities managing TB and MDR-TB patients. At present, no international study is available to investigate how infection control measures are implemented in healthcare facilities managing TB patients. The aim of the present study was to document how infection control measures are implemented in selected settings in the European Union, focusing on national MDR/XDR-TB reference centres. A standardised and comprehensive survey tool was developed, as discussed previously. In summary, the tool consisted of items covering the key areas that a panel of experts considered adequate to evaluate TB infection control in the selected countries.</br
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