bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multicentre study of 4626 patients assesses the effectiveness, safety and burden of two categories of treatments for central retinal vein occlusion: intravitreal anti-vascular endothelial growth factor injections and intravitreal Ozurdex injections
Authors: Gale Richard , Gill Claire , Pikoula Maria , Lee Aaron Y , Hanson Rachel L W , Denaxas Spiros , Egan Catherine , Tufail Adnan , Taylor Paul ,   UK EMR Database Users Group
Published: September 2020

Background/Aims
To assess the effectiveness, burden and safety of two categories of treatment for central retinal vein occlusion (CRVO): intravitreal injections of anti-vascular endothelial growth factor (anti-VEGF) and dexamethasone (Ozurdex).

Methods
A retrospective analysis of Medisoft electronic medical record (EMR) data from 27 National Health Service sites in the UK identified 4626 treatment-naive patients with a single mode of treatment for macular oedema secondary to CRVO. Statistics describing the overall CRVO patient cohort and individual patient subpopulations stratified by treatment type were generated. Mean age at baseline, gender, ethnicity, social deprivation and visual acuity (VA) follow-up was reported. Absolute and change in VA using ETDRS are used to describe treatment effectiveness, the number of injections and visits used to describe treatment burden and endophthalmitis rates as a marker of treatment safety.

Results
Mean VA was 47.9 and 45.3 EDTRS letters in the anti-VEGF and Ozurdex groups, respectively. This changed to 57.9/53.7 at 12 months, 58.3/46.9 at 18 months and 59.4/51.0 at 36 months. Mean number of injections were 5.6/1.6 at 12 months, 6.0/1.7 at 18 months and 7.0/1.8 at 36 months. Endophthalmitis rates were 0.003% (n=4) for the anti-VEGF group and 0.09% (n=1) for the Ozurdex group.

Conclusions
VA improvements were greater and more sustained with anti-VEGF treatment. Lower starting acuity resulted in bigger gains in both groups, while higher starting acuity resulted in higher VA at 36 months. Although treatment burden was greater with anti-VEGF, Ozurdex was associated with higher rates of endophthalmitis.
Potential epidemiological impact of the 2017 American College of Cardiology/American Heart Association high blood pressure guideline on the Chinese population: a cross-sectional study in rural areas of Liaoning Province
Authors: Dong Yuanyuan , Sun Zhaoqing , Li Zhao , Guo Xiaofan , Sun Guozhe , Xie Yanxia , Zheng Jia , Dai Yue , Wang Yali , Guo Rongrong , Zheng Liqiang , Sun Yingxian 
Published: September 2020

ObjectivesThe present study estimated the percentage of rural Chinese adults with hypertension and recommended pharmacological antihypertensive treatment according to the 2017 American College of Cardiology/American Heart Association (ACC/AHA) guideline compared with the 2010 Chinese Guideline for the Management of Hypertension.DesignCross-sectional study.SettingThree counties in rural areas of northeastern China.ParticipantsA total of 11 747 eligible individuals aged ≥35 years from rural areas of northeastern China were selected for the present analysis.Main outcome measuresThe percentage of rural Chinese adults with hypertension and recommended pharmacological antihypertensive treatment according to the 2017 ACC/AHA guideline and the 2010 Chinese Guideline for the Management of Hypertension, and the proportion of rural Chinese adults taking antihypertensive medication with blood pressure (BP) above the 2017 ACC/AHA guideline and the 2010 Chinese guideline treatment goal.ResultsThe mean age of the study population was 53.9±10.8 years and 53.7% of the participants were women. According to the 2017 ACC/AHA guideline and the 2010 Chinese guideline, the crude prevalence of hypertension was 72.2% and 49.8%, respectively, and the percentage of recommended antihypertensive medications for rural Chinese adults was 56.4% and 51.4%, respectively. Among these rural Chinese adults taking antihypertensive medications, 96.7% had above goal BP according to the 2017 ACC/AHA guideline compared with 86.1% with above goal BP according to the 2010 Chinese guideline.ConclusionThe present analysis demonstrated that compared with the 2010 Chinese guideline, the 2017 ACC/AHA hypertension guideline will result in a substantial increase in the percentage of rural Chinese adults defined as having hypertension and a small increase in the percentage of adults who are recommended antihypertensive medications. More intensive management is suggested to improve the control rate of hypertension among rural Chinese adults.
Viral respiratory infections in very low birthweight infants at neonatal intensive care unit: prospective observational study
Authors: Sánchez García Laura , Calvo Cristina , Casas Inmaculada , Pozo Francisco , Pellicer Adelina 
Published: September 2020

Background and objectiveVery low birthweight (VLBW) infants are highly susceptible to respiratory infections. Information about prevalence of viral respiratory infections (VRIs) in neonatal intensive care unit (NICU) is scarce. Recent evidence suggests short-term and long-term impact of VRI in morbidity of VLBW infants. The goal of this study is to conduct a VRI surveillance in VLBW infants during NICU admission to address the prevalence, type of viruses and associated clinical features.MethodsProspective observational cohort study on infants below 32 gestational weeks admitted to a tertiary NICU during a 2-year period. Respiratory virus detection (influenza, parainfluenza, rhinovirus (hRV), enterovirus, respiratory syncytial virus, metapneumovirus, coronavirus, bocavirus and adenovirus) was performed by real time multiplex PCR assays in nasopharyngeal aspirates (NPAs), within the first 72 hours after birth and weekly, until discharge. Additional samples were taken if clinically indicated.Results147 out of 224 eligible infants were enrolled. At least one positive NPA was found in 38% of the study cohort. Main viruses identified were hRV (58%) and adenovirus (31%). Among the 56 infants with positive NPA, 26 showed non-specific respiratory features in 58% (increased respiratory workload, tachypnoea, apnoea) or typical cold features in 38% (rhinorrhea, cough, fever), at least in one episode. Antibiotics were prescribed in 29% of cases. Positive infants showed higher rates of bronchopulmonary dysplasia (BPD), need for supplemental oxygen and mechanical ventilation, and had longer hospital stay. Cox regression analysis found BPD as an independent risk factor for viral infection (p<0.001) and symptomatic VRI (p<0.04).ConclusionsSystematic surveillance in VLBW infants reports VRI is frequent, particularly by hRV. Asymptomatic infection is highly prevalent which is critical in the face of establishing appropriate preventive strategies. Infants with BPD are especially vulnerable to such infections.
How boys and testicles wander to surgery: a nationwide cohort study of surgical delay in Sweden
Authors: Omling Erik , Bergbrant Sanna , Persson Andreas , Björk Jonas , Hagander Lars 
Published: September 2020

BackgroundEarly orchidopexy is recommended for cryptorchidism and the surgery is increasingly centralised. The objectives were to determine the incidence, risk factors and if distance to treating hospital impacted on timely treatment of cryptorchidism.MethodsIn this observational study, all boys born in Sweden from 2001 to 2014 were followed in national registers to determine the incidence of cryptorchidism by levels of birth-related risk factors and social determinants. Travel time to hospital was used as the primary exposure in multivariable survival analysis, with age at surgery as main outcome.ResultsOf 748 678 boys at risk for cryptorchidism, 7351 were treated and evaluated for timing of surgery (cumulative childhood incidence 1.4%, 95% CI 1.3% to 1.5%). The incidence was clearly associated with prematurity and overdue pregnancy (HR for <32 weeks 2.77 (95% CI 2.39 to 3.21); 32–36 weeks HR 1.36 (95% CI 1.24 to 1.49); >41 weeks HR 1.19 (95% CI 1.10 to 1.29)), low birth weight (<1000 g HR 3.94 (95% CI 3.15 to 4.92); 1000–1499 g HR 3.70 (95% CI 3.07 to 4.46); 1500–2500 g HR 1.69 (95% CI 1.52 to 1.88)) and intrauterine growth restriction (small for gestational age HR 2.38 (95% CI 2.14 to 2.65); large for gestational age HR 1.26 (95% CI 1.13 to 1.42)), but not with smoking or maternal age. Each 30 min increase in travel time was associated with a reduced probability of timely treatment (HR for being treated by age 3 adjusted for risk factors and socioeconomic determinants: 0.91 (95% CI 0.88 to 0.95)). Lower income and financial support were also associated with treatment delays (adjusted HR for lowest income quintile 0.82 (95% CI 0.72 to 0.93) and for families with financial support 0.85 (95% CI 0.73 to 0.97)).ConclusionsTravel distance to treating hospital was associated with delayed treatment. ‘Not all those who wander are lost’, but these findings suggest a trade-off between centralisation benefits and barriers of geography also in elective paediatric surgery.
Cross-sectional study of paediatric case mix presenting to an emergency centre in Cape Town, South Africa, during COVID-19
Authors: Akuaake Lembi Magano , Hendrikse Clint , Spittal Graeme , Evans Katya , van Hoving Daniël Jacobus 
Published: September 2020

ObjectiveTo describe and compare the effect of level 5 lockdown measures on the workload and case mix of paediatric patients presenting to a district-level emergency centre in Cape Town, South Africa.MethodsPaediatric patients (<13 years) presenting to Mitchells Plain Hospital were included. The level 5 lockdown period (27 March 2020–30 April 2020) was compared with similar 5-week periods immediately before (21 February 2020–26 March 2020) and after the lockdown (1 May 2020–4 June 2020), and to similar time periods during 2018 and 2019. Patient demographics, characteristics, International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10) diagnosis, disposition and process times were collected from an electronic patient tracking and registration database. The χ2 test and the independent samples median test were used for comparisons.ResultsEmergency centre visits during the lockdown period (n=592) decreased by 58% compared with 2019 (n=1413) and by 56% compared with the 2020 prelockdown period (n=1342). The proportion of under 1 year olds increased by 10.4% (p<0.001), with a 7.4% increase in self-referrals (p<0.001) and a 6.9% reduction in referrals from clinics (p<0.001). Proportionally more children were referred to inpatient disciplines (5.6%, p=0.001) and to a higher level of care (3.9%, p=0.004). Significant reductions occurred in respiratory diseases (66.9%, p<0.001), injuries (36.1%, p<0.001) and infectious diseases (34.1%, p<0.001). All process times were significantly different between the various study periods.ConclusionSignificantly less children presented to the emergency centre since the implementation of the COVID-19 lockdown, with marked reductions in respiratory and infectious-related diseases and in injuries.
International recommendations for a vascular access minimum dataset: a Delphi consensus-building study
Authors: Schults Jessica , Kleidon Tricia , Chopra Vineet , Cooke Marie , Paterson Rebecca , Ullman Amanda J , Marsh Nicole , Ray-Barruel Gillian , Hill Jocelyn , Devrim İlker , Hammarskjold Fredrik , Pedreira Mavilde L , Bertoglio Sergio , Egan Gail , Mimoz Olivier , van Boxtel Ton , DeVries Michelle , Magalhaes Maria , Hallam Carole , Oakley Suzanne , Rickard Claire M 
Published: September 2020

BackgroundData regarding vascular access device use and outcomes are limited. In part, this gap reflects the absence of guidance on what variables should be collected to assess patient outcomes. We sought to derive international consensus on a vascular access minimum dataset.MethodsA modified Delphi study with three rounds (two electronic surveys and a face-to-face consensus panel) was conducted involving international vascular access specialists. In Rounds 1 and 2, electronic surveys were distributed to healthcare professionals specialising in vascular access. Survey respondents were asked to rate the importance of variables, feasibility of data collection and acceptability of items, definitions and response options. In Round 3, a purposive expert panel met to review Round 1 and 2 ratings and reach consensus (defined as ≥70% agreement) on the final items to be included in a minimum dataset for vascular access devices.ResultsA total of 64 of 225 interdisciplinary healthcare professionals from 11 countries responded to Round 1 and 2 surveys (response rate of 34% and 29%, respectively). From the original 52 items, 50 items across five domains emerged from the Delphi procedure.Items related to demographic and clinical characteristics (n=5; eg, age), device characteristics (n=5; eg, device type), insertion (n=16; eg, indication), management (n=9; eg, dressing and securement), and complication and removal (n=15, eg, occlusion) were identified as requirements for a minimum dataset to track and evaluate vascular access device use and outcomes.ConclusionWe developed and internally validated a minimum dataset for vascular access device research. This study generated new knowledge to enable healthcare systems to collect relevant, useful and meaningful vascular access data. Use of this standardised approach can help benchmark clinical practice and target improvements worldwide.
Palliative care from the perspective of cancer physicians: a qualitative semistructured interviews study
Authors: Economos Guillaume , Bonneville-Levard Alice , Djebari Ines , Van Thuynes Kevin , Tricou Colombe , Perceau-Chambard Élise , Filbet Marilene 
Published: September 2020

ObjectiveIntegrated palliative care for populations with cancer is now highly recommended. However, numerous physicians working in cancer care are still reluctant to refer patients to specialist palliative care teams. This study explores their perceptions of palliative care and factors influencing reasons to refer to specialist palliative care.MethodsWe used a qualitative methodology based on semistructured interviews with physicians working in cancer care, in two tertiary hospitals and one comprehensive cancer centre with access to a specialist palliative care team. Forty-six physicians were invited and 18 interviews were performed until data saturation. Participants were mainly men, licensed in cancer care, 37.9 years old on average and had 13 years of professional experience. The length of interviews was on average 34 min (SD=3). Analysis was performed accordingly with the thematic analysis.ResultsThe data analysis found four themes: symptom management as a trigger, psychosocial support, mediation provided by interventions, and the association with terminal care or death. Palliative care integrated interventions were mainly perceived as holistic approaches that offered symptom management expertise and time. They were valued for helping in consolidating decision-making from a different or external perspective, or an ‘outside look’. Several barriers were identified, often due to the confusion between terminal care and palliative care. This was further highlighted by the avoidance of the words ‘palliative care’, which were associated with death.ConclusionsNational policies for promoting palliative care seemed to have failed in switching oncologists' perception of palliative care, which they still consider as terminal care.
Cultural adaptation and content validity of a Chinese translation of the ‘Person-Centered Primary Care Measure’: findings from cognitive debriefing
Authors: Tse Emily Tsui Yee , Lam Cindy Lo Kuen , Wong Carlos King Ho , Chin Weng Yee , Etz Rebecca S , Zyzanski Stephen J , Stange Kurt C 
Published: September 2020

ObjectivesTo develop an equivalent Chinese translation of the Person-Centered Primary Care Measure (PCPCM) and to establish its cultural adaptability and content validity through cognitive debriefing.DesignThe original English PCPCM was first translated into Chinese by double forward-translation by professional translators. The reconciliated Chinese version was then doubly back-translated into English by two other professional translators blinded to the forward-translation. On affirmation on its linguistic equivalence with the developers of the original English PCPCM, the reconciliated Chinese PCPCM was sent for cognitive debriefing with 20 Chinese-speaking primary care subjects by a trained interviewer using structured probing questions to collect their opinions on the clarity, comprehensibility and relevance of each item and response option in the Measure.SettingSubjects were invited from a primary care clinic in Hong Kong to undergo the cognitive debriefing interviews. The interviews were divided into four groups chronologically to allow revision of the items to be made in between.ParticipantsTen males and 10 females above the age of 18 completed the cognitive interviews. They were all Cantonese-speaking Chinese recruited by convenience sampling. Subjects with cognitive impairment, could not read Chinese, too old or too sick to complete the interviews were excluded from the study.ResultsAn average of 3.3 min (range 3–4 min) was required for the subjects to self-complete the Measure. All items were generally perceived to be easily understood and relevant. Modifications were made to items with the content validity index (CVI) on clarity or understanding <0.8 in each round of the interviews or if a majority of the subjects suggested rewording. Revisions were made to two items in the Chinese PCPCM throughout the whole cognitive debriefing process before the final version was confirmed. The average CVI on clarity of the Chinese PCPCM items ranged from 0.75 to 1. The average CVI on understanding ranged from 0.7 to 1. The average CVI on relevance ranged from 0.55 to 1.ConclusionsThe content validity of the PCPCM was ascertained in terms of its clarity, understandability and relevance to allow further testing of its psychometric properties in a larger Chinese population.
Leadership in healthcare: a bibliometric analysis of 100 most influential publications
Authors: Bhulani Nizar , Miao Timothy L , Norbash Alexander , Castillo Mauricio , Khosa Faisal 
Published: September 2020

AimWe analysed the 100 most influential articles on leadership in healthcare via a bibliometric analysis to better understand categories and topics in leadership science and their relationship to healthcare. Leadership in healthcare is ever evolving and needs to be robust like any another profession.MethodsA bibliometric analysis was performed. Articles were ranked by citation counts and three independent reviewers screened the abstracts for inclusion. Common themes were categorised.ResultsCitations for articles ranged from 53 to 487 and were published across 50 journals. Articles focused primarily on three leadership subjects: team building, quality improvement and healthcare delivery. Of healthcare provider groups, articles were directed to or concerning primarily: nursing, academic medicine and critical care medicine.ConclusionsWe identified gaps in healthcare leadership development literature. There is an opportunity to effectively identify areas of interest and demand for organised leadership education and training.
Multicentre retrospective cohort study assessing the incidence of serious infections in patients with lupus nephritis, compared with non-renal systemic lupus erythematosus
Authors: Yates Drew Joseph , Mon Saw Yu , Oh Yumi , Okano Satomi , Manickam Valli , Soden Muriel , Kubler Paul , Ranganathan Dwarakanathan 
Published: September 2020

ObjectivesThe incidence of serious infections is poorly defined in patients with lupus nephritis (LN). It is also unclear if LN influences risk of serious infections in a longitudinal analysis. The aim of this study was to determine the incidence of serious infections in patients with SLE and LN, compared with patients with SLE without LN.MethodsA multicentre retrospective cohort study was conducted. Patients with LN identified at two tertiary centres were matched where possible with age and gender-matched patients with SLE without LN.Any infection requiring inpatient admission, occurring in the 6 months following index clinical visit, was considered serious. Cox regression was employed to investigate the association between risk of serious infection and LN status, and other relevant covariates.ResultsA total of 173 patients were included within the analysis (n=87 LN, n=86 SLE only). A total of 9.2% (n=8) of patients with LN experienced at least one serious infection within the study period, compared with 5.8% (n=5) of patients without LN, equivalent to 19.5 and 12.0 infections per 100 patient-years with and without LN, respectively. Univariable and multivariable analyses found no significant increased risk of serious infection in patients with LN versus controls (HR 1.61; 95% CI 0.53 to 4.92 and adjusted HR (aHR) 0.91; 95% CI 0.27 to 3.06, respectively). Increased prednisone dose and modified SLE comorbidity index were strongly associated with serious infection (aHR (per 5 mg) 1.21; 95% CI 1.07 to 1.37; p=0.003 and aHR 1.13; 95% CI 1.02 to 1.25; p=0.018, respectively).ConclusionsIn this cohort, adjusting for cofactors, the presence of LN alone does not appear to increase the risk of serious infections compared with patients with SLE without LN. However, increased prednisone dose at baseline visit and increasing comorbidity were independently associated with the incidence of serious infection.
Cutaneous vasculitis in SLE
Authors: Kallas Romy , Goldman Daniel , Petri Michelle A 
Published: September 2020

ObjectivesWe determined the temporal association between clinical and serological disease manifestations and development of cutaneous small vessel vasculitis in a large prospective multiethnic cohort.MethodsPatients with SLE diagnosed according to the Systemic Lupus International Collaborating Clinics (SLICC) classification criteria or the revised classification criteria as defined by the American College of Rheumatology (ACR) were enrolled in the Hopkins Lupus Cohort. Cutaneous small vessel vasculitis was determined as a component of the Systemic Lupus Erythematosus Disease Activity Index. SLE-associated cutaneous small vessel vasculitis lesions were reported clinically. They presented as punctate lesions, palpable purpura, tender erythematous plaques or macules with or without necrosis. No histopathological diagnosis was pursued to confirm the diagnosis of vasculitis or to differentiate it from other causes of digital lesions in patients with SLE. Disease manifestations that preceded the first occurrence of cutaneous small vessel vasculitis lesions were analysed using Kaplan-Meier. Cox regression analysis was used to assess the relationship between baseline clinical and immunological manifestations and the development of cutaneous small vessel vasculitis. We adjusted for gender, race and age at SLE diagnosis.ResultsA total of 2580 patients were studied: 52.4% were Caucasian and 39.4% were African-American. The mean age of the cohort was 45.5±14.5 years. The mean years of cohort follow-up was 7.9±7.6. Cutaneous small vessel vasculitis was observed in 449 (17.3%). The mean time to cutaneous vasculitis after SLE diagnosis was 4.78 years (95% CI 3.96 to 5.60). At least 159 (35%) patients had recurrences of cutaneous vasculitis lesions. Discoid rash, Raynaud’s phenomenon, myositis, anaemia, Coombs’ positivity, leucopenia, anti-Smith and anti-RNP (Ribonucleoprotein) were significantly associated with the development of cutaneous vasculitis. The SLICC/ACR Damage Index score was higher in patients with cutaneous vasculitis compared with those without cutaneous vasculitis.ConclusionsCutaneous vasculitis is frequent (17.3%) and often recurrent (35%). African-Americans are at higher risk of developing cutaneous small vessel vasculitis than Caucasians. Clinical presentations such as myositis and haematological manifestations are predictors of cutaneous vasculitis development. The presence of cutaneous vasculitis is associated with increased organ damage.