5366 research outputs found
Sort by
COVID-19 in children and adolescents in Europe: a multinational, multicentre cohort study.
BACKGROUND
To date, few data on paediatric COVID-19 have been published, and most reports originate from China. This study aimed to capture key data on children and adolescents with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection across Europe to inform physicians and health-care service planning during the ongoing pandemic.
METHODS
This multicentre cohort study involved 82 participating health-care institutions across 25 European countries, using a well established research network-the Paediatric Tuberculosis Network European Trials Group (ptbnet)-that mainly comprises paediatric infectious diseases specialists and paediatric pulmonologists. We included all individuals aged 18 years or younger with confirmed SARS-CoV-2 infection, detected at any anatomical site by RT-PCR, between April 1 and April 24, 2020, during the initial peak of the European COVID-19 pandemic. We explored factors associated with need for intensive care unit (ICU) admission and initiation of drug treatment for COVID-19 using univariable analysis, and applied multivariable logistic regression with backwards stepwise analysis to further explore those factors significantly associated with ICU admission.
FINDINGS
582 individuals with PCR-confirmed SARS-CoV-2 infection were included, with a median age of 5·0 years (IQR 0·5-12·0) and a sex ratio of 1·15 males per female. 145 (25%) had pre-existing medical conditions. 363 (62%) individuals were admitted to hospital. 48 (8%) individuals required ICU admission, 25 (4%) mechanical ventilation (median duration 7 days, IQR 2-11, range 1-34), 19 (3%) inotropic support, and one (<1%) extracorporeal membrane oxygenation. Significant risk factors for requiring ICU admission in multivariable analyses were being younger than 1 month (odds ratio 5·06, 95% CI 1·72-14·87; p=0·0035), male sex (2·12, 1·06-4·21; p=0·033), pre-existing medical conditions (3·27, 1·67-6·42; p=0·0015), and presence of lower respiratory tract infection signs or symptoms at presentation (10·46, 5·16-21·23; p<0·0001). The most frequently used drug with antiviral activity was hydroxychloroquine (40 [7%] patients), followed by remdesivir (17 [3%] patients), lopinavir-ritonavir (six [1%] patients), and oseltamivir (three [1%] patients). Immunomodulatory medication used included corticosteroids (22 [4%] patients), intravenous immunoglobulin (seven [1%] patients), tocilizumab (four [1%] patients), anakinra (three [1%] patients), and siltuximab (one [<1%] patient). Four children died (case-fatality rate 0·69%, 95% CI 0·20-1·82); at study end, the remaining 578 were alive and only 25 (4%) were still symptomatic or requiring respiratory support.
INTERPRETATION
COVID-19 is generally a mild disease in children, including infants. However, a small proportion develop severe disease requiring ICU admission and prolonged ventilation, although fatal outcome is overall rare. The data also reflect the current uncertainties regarding specific treatment options, highlighting that additional data on antiviral and immunomodulatory drugs are urgently needed.
FUNDING
ptbnet is supported by Deutsche Gesellschaft für Internationale Zusammenarbeit
Challenges and outcomes for bariatric surgery in patients with paraplegia: Case series and systematic review.
INTRODUCTION
Obesity contributes to a plethora of significant chronic diseases. Bariatric surgery has been demonstrated to be the most cost-effective treatment for severe obesity and significantly reduces morbidity and mortality from metabolic syndrome. Patients with paraplegia have significantly impaired mobility and are therefore at a much higher risk of developing severe obesity and its sequelae. Bariatric surgery may bring significant improvements to mobility, morbidity and quality of life for patients with paraplegia, but evidence in the literature is poor for this group of patients.
METHODS
A systematic review was conducted conforming to PRISMA guidelines. The MEDLINE and Cochrane databases were searched for all articles published prior to April 2019 matching all of the keywords 'bariatric', 'paraplegia' and 'spinal cord'. Articles were assessed for relevance and full texts reviewed. In addition, clinical records were reviewed for three patients who underwent bariatric surgery at a single UK private institution. Non-identifiable demographic, clinical, operative and outcome data were obtained from electronic records.
RESULTS
Twenty seven articles were retrieved from the initial database search, of which nine eligible full texts were reviewed. Eight articles were case reports or case series and the final article was a systematic review. All cases reported had positive outcomes with significant weight loss, improvement in mobility and increased quality of life. Outcomes from the three diversely aged patients in our case series were similarly positive, with no significant post-operative complications.
DISCUSSION
Patients with obesity and paraplegia may significantly benefit from bariatric surgery. There is a need for multi-centre cohort studies to evaluate outcomes and the choice of bariatric intervention. UK guidelines do not include criteria based on mobility or neurological deficit, resulting in a potential missed opportunity to offer a cost-effective treatment that can significantly improve quality of life for patients with severe obesity and paraplegia
COVID-19: to be or not to be; that is the diagnostic question.
Since the first cases in December 2019, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly spread across the globe, resulting in the COVID-19 pandemic. Early clinical experiences have demonstrated the wide spectrum of SARS-CoV-2 presentations, including various reports of atypical presentations of COVID-19 and possible mimic conditions.This article summarises the current evidence surrounding atypical presentations of COVID-19 including neurological, cardiovascular, gastrointestinal, otorhinolaryngology and geriatric features. A case from our hospital of pneumocystis pneumonia initially suspected to be COVID-19 forms the basis for a discussion surrounding mimic conditions of COVID-19. The dual-process model of clinical reasoning is used to analyse the thought processes used to make a diagnosis of COVID-19, including consideration of the variety of differential diagnoses.While SARS-CoV-2 is likely to remain on the differential diagnostic list for a plethora of presentations for the foreseeable future, clinicians should be cautious of ignoring other potential diagnoses due to availability bias. An awareness of atypical presentations allows SARS-CoV-2 to be a differential so that it can be appropriately investigated. A knowledge of infectious mimics prevents COVID-19 from overshadowing other diagnoses, hence preventing delayed diagnosis or even misdiagnosis and consequent adverse outcomes for patients
Reply to Torgrim Tandstad. The New Standard Adjuvant Treatment for High-risk Stage 1 Nonseminoma: Reducing the Treatment Burden and Maximizing Long-term Survival. Eur Urol 2020;77:352-3.
Machine perfusions in liver transplantation: The evidence-based position paper of the italian society of organ and tissue transplantation.
BACKGROUND AND AIMS
The use of machine perfusion in liver transplantation is spreading worldwide but its efficacy has not been demonstrated and its proper clinical use far to be implemented. The Italian Society of Organ and Tissue Transplantation (SITO) promoted the development of an evidence-based position paper.
METHODS
A three-step approach has been adopted to develop this position paper. Firstly, the Society appointed a Chair and a co-Chair who then assembled a Working Group with specific experience of machine perfusion in liver transplantation. The Guideline Development Group framed the clinical questions into a Patient/Intervention/Control/Outcome (PICO) format, extracted and analyzed available literature, ranked the quality of evidence, prepared and graded the recommendations. Recommendations were then discussed by all the members of the SITO and voted by Delphi round by an Internal Review Board and finally evaluated and scored by a panel of external reviewers.
RESULTS
All available literature was analyzed, and its quality ranked. Eighteen recommendations regarding the use and the efficacy of ex-situ hypothermic and normothermic machine perfusion and sequential normothermic regional perfusion and ex-situ machine perfusion were prepared and graded according to the GRADE method.
CONCLUSION
A critical and scientific approach is required for the safe implementation of this new technology
Reducing the risk of venous thromboembolism following superficial endovenous treatment: A UK and Republic of Ireland consensus study.
OBJECTIVES
Venous thromboembolism is a potentially fatal complication of superficial endovenous treatment. Proper risk assessment and thromboprophylaxis could mitigate this hazard; however, there are currently no evidence-based or consensus guidelines. This study surveyed UK and Republic of Ireland vascular consultants to determine areas of consensus.
METHODS
A 32-item survey was sent to vascular consultants via the Vascular and Endovascular Research Network (phase 1). These results generated 10 consensus statements which were redistributed (phase 2). 'Good' and 'very good' consensus were defined as endorsement/rejection of statements by >67% and >85% of respondents, respectively.
RESULTS
Forty-two consultants completed phase 1. This generated seven statements regarding risk factors mandating peri-procedural pharmacoprophylaxis and three statements regarding specific pharmacoprophylaxis regimes. Forty-seven consultants completed phase 2. Regarding venous thromboembolism risk factors mandating pharmacoprophylaxis, 'good' and 'very good' consensus was achieved for 5/7 and 2/7 statements, respectively. Regarding specific regimens, 'very good' consensus was achieved for 3/3 statements.
CONCLUSIONS
The main findings from this study were that there was 'good' or 'very good' consensus that patients with any of the seven surveyed risk factors should be given pharmacoprophylaxis with low-molecular-weight heparin. High-risk patients should receive one to two weeks of pharmacoprophylaxis rather than a single dose
Treatment-resistant hypertension in the hemodialysis population: a 44-h ambulatory blood pressure monitoring-based study.
BACKGROUND
Uncontrolled hypertension notwithstanding the use of at least three drugs or hypertension controlled with at least four drugs, the widely accepted definition of treatment-resistant hypertension (TRH), is considered as a common problem in the hemodialysis population. However, to date there is no estimate of the prevalence of this condition in hemodialysis patients.
METHOD
We estimated the prevalence of TRH by 44-h ambulatory BP monitoring (ABPM) in 506 hemodialysis patients in 10 renal units in Europe included in the registry of the European Renal and Cardiovascular Medicine (EURECAm,), a working group of the European Association, European Dialysis and Transplantation Association (ERA EDTA). In a sub-group of 114 patients, we tested the relationship between fluid overload (Body Composition monitor) and TRH.
RESULTS
The prevalence of hypertension with 44-h ABPM criteria was estimated at 85.6% (434 out of 506 patients). Of these, 296 (58%) patients were classified as uncontrolled hypertensive patients by 44-h ABPM criteria (≥130/80 mmHg). Two hundred and thirteen patients had uncontrolled hypertension while on treatment with less than three drugs and 210 patients were normotensive while on drug therapy (n = 138) or off drug treatment (n = 72). The prevalence of TRH was 24% (93 among 386 treated hypertensive patients). The prevalence of predialysis fluid overload was 33% among TRH patients, 34% in uncontrolled hypertensive patients and 26% in normotensive patients. The vast majority (67%) of hemodialysis patients with TRH had no fluid overload.
CONCLUSION
TRH occurs in about one in four treated hypertensive patients on hemodialysis. Fluid overload per se only in part explains TRH and the 67% of these patients show no fluid overload
An Audit of the Measurement and Reporting of Male Testosterone Levels in UK Clinical Biochemistry Laboratories.
INTRODUCTION
A number of guidance documents have been published in recent years for diagnosis and management of hypogonadism (HG). Laboratory practice has a major role in supporting guidelines with accurate and precise total serum testosterone (TT) methods and standardised pre- and post-analytical protocols. Our study investigated whether laboratory practice currently supports the management guidelines for HG.
METHODS
An internet-based questionnaire-survey of senior laboratory biochemists (UK/Republic of Ireland) was conducted (April-May 2018). Questions reflected sampling, laboratory practice, reference ranges and reporting of results. The results were analysed in conjunction with data obtained from the UK National External Quality Assurance Service (UK NEQAS) on assay performance.
RESULTS
Analyses of 96 laboratory surveys returned the following: 74 laboratories stated that optimal sampling time was communicated to users; 81 laboratories used immunoassays; 76 laboratories included reference ranges for adult men (31 had dual/multiple age-related intervals). Wide variability in lower/upper limits was evident in the common immunoassays; the majority of reference ranges were from manufacturers (50.0%) or historical (18.8%). Action limits based on TT levels were used by 64 laboratories, but 63 did not report a borderline range as suggested by guidelines. Protocols for cascading tests based on TT were evident in 58 laboratories, with 50 laboratories offering estimated free testosterone; Interpretative comments were provided by 67 laboratories, but no references were made to management guidelines. Data from UK NEQAS demonstrated considerable variation in testosterone assay performance.
CONCLUSIONS
Our survey has highlighted inconsistencies that could lead to HG (and other conditions requiring TT measurement) not being managed appropriately. The results from this survey and from UK NEQAS reinforce the requirement for action to be considered regarding the standardisation of testosterone assays and harmonisation of laboratory practice
Defining Myocardial Abnormalities Across the Stages of Chronic Kidney Disease: A Cardiac Magnetic Resonance Imaging Study.
OBJECTIVES
A proof of concept cross-sectional study investigating changes in myocardial abnormalities across stages of chronic kidney disease (CKD). Characterizing noninvasive markers of myocardial fibrosis on cardiac magnetic resonance, echocardiography, and correlating with biomarkers of fibrosis, myocardial injury, and functional correlates including exercise tolerance.
BACKGROUND
CKD is associated with an increased risk of cardiovascular death. Much of the excess mortality is attributed to uremic cardiomyopathy, defined by increased left ventricular hypertrophy, myocardial dysfunction, and fibrosis. The prevalence of these abnormalities across stages of CKD and their impact on cardiovascular performance is unknown.
METHODS
A total of 134 nondiabetic, pre-dialysis subjects with CKD stages 2 to 5 without myocardial ischemia underwent cardiac magnetic resonance (1.5-T) including; T mapping (biomarker of diffuse fibrosis), T mapping (edema), late gadolinium enhancement, and assessment of aortic distensibility. Serum biomarkers including collagen turnover (P1NP, P3NP), troponin T, and N-terminal pro-B-type natriuretic peptide were measured. Cardiovascular performance was quantified by bicycle cardiopulmonary exercise testing and echocardiography.
RESULTS
Native myocardial T times increased incrementally from stage 2 to 5 (966 ± 21 ms vs. 994 ± 33 ms; p < 0.001), independent of hypertension and aortic distensibility. Left atrial volume, E/e', N-terminal pro-B-type natriuretic peptide, P1NP, and P3NP increased with CKD stage (p < 0.05), while effort tolerance (% predicted VOPeak, %VOVT) decreased (p < 0.001). In multivariable linear regression models, estimated glomerular filtration rate was the strongest predictor of native myocardial T time (p < 0.001). Native myocardial T time, left atrial dilatation, and high-sensitivity troponin T were independent predictors of % predicted VOPeak (p < 0.001).
CONCLUSIONS
Imaging and serum biomarkers of myocardial fibrosis increase with advancing CKD independent of effects of left ventricular afterload and might be a key intermediary in the development of uremic cardiomyopathy. Further studies are needed to determine whether these changes lead to the increased rates of heart failure and death in CKD. (Left Ventricular Fibrosis in Chronic Kidney Disease [FibroCKD]; NCT03176862)