bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Temporal Variation in Indocyanine Green Administration on Tumor Identification During Fluorescence Guided Breast Surgery
Authors: Kedrzycki Martha S. , Leiloglou Maria , Chalau Vadzim , Chiarini Nicolas , Thiruchelvam Paul T. R. , Hadjiminas Dimitri J. , Hogben Katy R. , Rashid Faiza , Ramakrishnan Rathi , Darzi Ara W. , Elson Daniel S. , Leff Daniel R. 
Published: August 2021

Abstract
Background
On average, 21% of women in the USA treated with Breast Conserving Surgery (BCS) undergo a second operation because of close positive margins. Tumor identification with fluorescence imaging could improve positive margin rates through demarcating location, size, and invasiveness of tumors. We investigated the technique’s diagnostic accuracy in detecting tumors during BCS using intravenous indocyanine green (ICG) and a custom-built fluorescence camera system.

Methods
In this single-center prospective clinical study, 40 recruited BCS patients were sub-categorized into two cohorts. In the first ‘enhanced permeability and retention’ (EPR) cohort, 0.25 mg/kg ICG was injected ~ 25 min prior to tumor excision, and in the second ‘angiography’ cohort, ~ 5 min prior to tumor excision. Subsequently, an in-house imaging system was used to image the tumor in situ prior to resection, ex vivo following resection, the resection bed, and during grossing in the histopathology laboratory to compare the technique’s diagnostic accuracy between the cohorts.

Results
The two cohorts were matched in patient and tumor characteristics. The majority of patients had invasive ductal carcinoma with concomitant ductal carcinoma in situ. Tumor-to-background ratio (TBR) in the angiography cohort was superior to the EPR cohort (TBR = 3.18 ± 1.74 vs 2.10 ± 0.92 respectively, p = 0.023). Tumor detection reached sensitivity and specificity scores of 0.82 and 0.93 for the angiography cohort and 0.66 and 0.90 for the EPR cohort, respectively (p = 0.1051 and p = 0.9099).

Discussion
ICG administration timing during the angiography phase compared with the EPR phase improved TBR and diagnostic accuracy. Future work will focus on image pattern analysis and adaptation of the camera system to targeting fluorophores specific to breast cancer.
OM Forum—A Vision of Responsible Research in Operations Management
Authors: Netessine Serguei 
Published: August 2021

Are we contributing positively to the society at large by research that we conduct in the field of Operations Management? Currently, the answer is probably closer to “no” than to “yes.” We often do not realize it, but there is very real cost of conducting our research nonresponsibly. In this invited OM Forum contribution, which is based on my Manufacturing and Service Operations Management Distinguished Fellow lecture given at the University of Texas at Dallas in 2018, I discuss what I believe it means to conduct research responsibly, I offer some specific steps to improve the relevance of what we do, and I argue that this approach gives our field a new opportunity to make broader impact by expanding the horizon of our work. History: This paper has been accepted for the Manufacturing & Service Operations Management Special Section on Responsible Research in Operations Management.
How do power and hierarchy influence staff safety in maternity services?
Authors: Elliott-Mainwaring Helen 
Published: August 2021

Background There are considerable tensions for healthcare staff between their employee allegiance and contracts, patient safety, and their responsibilities to codes of conduct within professional registration, and the NHS Constitution. Aims The research aim was to identify how power and hierarchy influence staff safety in maternity services and this was achieved by reviewing research papers concerned with personal narratives of staff experiences and perspectives of employment in their profession. Methods This systematic narrative review was based on the approach of a narrative synthesis, with papers coded using Nvivo software. Findings Power and hierarchy influence staff safety in maternity services by creating challenges to staff safety, which appear to essentially derive from poor communication. The workplace adversity described by participants seems to be linked with 1) psychological vulnerability 1.1) anxiety about the job, and 1.2) dysfunctional relationships, alongside 2) working conditions 2.1) poor organisational and structural conditions 2.2) institutional normalisation of dysfunctional relationships and 2.3) interpersonal elements feeding into an obstructive culture. Conclusion The negative influences of the cultural concepts of power and hierarchy on staff safety are significant within maternity services. Disconfirmation findings, those which stood out as different from the rest, evidenced the possibilities that healthy, psychologically safe working conditions could offer for healthcare staff in improving their prevailing culture.
What can we learn from the experiences and expectations of patients on growing waiting lists for planned care in the COVID-19 pandemic?
Authors: Kulkarni Kunal , Shah Rohi , Armaou Maria , Leighton Paul , Mangwani Jitendra , Dias Joseph 
Published: August 2021

Aims COVID-19 has compounded a growing waiting list problem, with over 4.5 million patients now waiting for planned elective care in the UK. Views of patients on waiting lists are rarely considered in prioritization. Our primary aim was to understand how to support patients on waiting lists by hearing their experiences, concerns, and expectations. The secondary aim was to capture objective change in disability and coping mechanisms. Methods A minimum representative sample of 824 patients was required for quantitative analysis to provide a 3% margin of error. Sampling was stratified by body region (upper/lower limb, spine) and duration on the waiting list. Questionnaires were sent to a random sample of elective orthopaedic waiting list patients with their planned intervention paused due to COVID-19. Analyzed parameters included baseline health, change in physical/mental health status, challenges and coping strategies, preferences/concerns regarding treatment, and objective quality of life (EuroQol five-dimension questionnaire (EQ-5D), Generalized Anxiety Disorder 2-item scale (GAD-2)). Qualitative analysis was performed via the Normalization Process Theory. Results A total of 888 patients responded. Better health, pain, and mood scores were reported by upper limb patients. The longest waiters reported better health but poorer mood and anxiety scores. Overall, 82% had tried self-help measures to ease symptoms; 94% wished to proceed with their intervention; and 21% were prepared to tolerate deferral. Qualitative analysis highlighted the overall patient mood to be represented by the terms ‘understandable’, ‘frustrated’, ‘pain’, ‘disappointed’, and ‘not happy/depressed’. COVID-19-mandated health and safety measures and technology solutions were felt to be implemented well. However, patients struggled with access to doctors and pain management, quality of life (physical and psychosocial) deterioration, and delay updates. Conclusion This is the largest study to hear the views of this ‘hidden’ cohort. Our findings are widely relevant to ensure provision of better ongoing support and communication, mostly within the constraints of current resources. In response, we developed a reproducible local action plan to address highlighted issues. Cite this article: Bone Jt Open 2021;2(8):583–593.
Statins and the progression of age-related macular degeneration in the United States
Authors: Ludwig Cassie A. , Vail Daniel , Rajeshuni Nitya A. , Al-Moujahed Ahmad , Rosenblatt Tatiana , Callaway Natalia F. , Veerappan Pasricha Malini , Ji Marco H. , Moshfeghi Darius M. 
Published: August 2021

Purpose
To study the effect of statin exposure on the progression from non-exudative to exudative age-related macular degeneration (AMD).

Methods
Retrospective cohort study of commercially insured patients diagnosed with non-exudative AMD (n = 231,888) from 2007 to 2015. Time-to-event analysis of the association between exposure to lipid-lowering medications and time from non-exudative AMD to exudative AMD diagnosis was conducted. Outcome measures included progression to exudative AMD, indicated by diagnosis codes for exudative AMD or procedural codes for intravitreal injections.

Results
In the year before and after first AMD diagnosis, 11,330 patients were continuously prescribed lipid-lowering medications and 31,627 patients did not take any lipid-lowering medication. Of those taking statins, 21 (1.6%) patients were on very-high-dose lipophilic statins, 644 (47.6%) on high-dose lipophilic statins, and 689 (50.9%) on low-dose lipophilic statins. We found no statistically significant relationship between exposure to low (HR 0.89, 95% CI 0.83 to 1.38) or high-dose lipophilic statins (HR 1.12, 95% CI 0.86 to 1.45) and progression to exudative AMD. No patients taking very-high-dose lipophilic statins converted from non-exudative to exudative AMD, though this difference was not statistically significant due to the subgroup size (p = .23, log-rank test).

Conclusions
No statistically significant relationship was found between statin exposure and risk of AMD progression. Interestingly, no patients taking very-high-dose lipophilic statins progressed to exudative AMD, a finding that warrants further exploration.
Attempted suicide and suicide of young Turkish women in Europe and Turkey: A systematic literature review of characteristics and precipitating factors
Authors: van Bergen Diana , Eylem-Van Bergeijk Ozlem , Montesinos Amanda Heredia 
Published: August 2021

Background
The increased risk of suicidal behaviour among Turkish women living in Europe and Turkey is a serious public health problem. This study compares and synthesises the empirical evidence of demographic, social, psychological and interpersonal characteristics and precipitating factors in the suicides and attempted suicides of Turkish women in Europe and Turkey.

Methods
We systematically searched eight databases (PsycINFO, PubMed, Med Line, Web of Science, Smart Cat, Safety Lit, BASE and Ulakbim), using search terms in English, Turkish, German and Dutch, as well as the reference lists of the retrieved papers. We extracted data on countries/regions, population characteristics, sample characteristics, recruitment, method of data collection, type of suicidal behaviour (suicide or attempted suicide) and precipitating factors and characteristics. The results were qualitatively synthesised.

Results
We retrieved nine studies on attempted suicide in Europe (from Germany, Switzerland and the Netherlands), 17 studies on attempted suicide in Turkey and 10 studies on suicide in Turkey (36 in total). Overall, we found similar precipitating factors and characteristics of attempted suicide and suicide in Turkey and Europe, including socio-demographic factors (young age and not being enrolled in the labour market), poverty and, to some extent, mental illness. Moreover, conflicts with family or spouses and violence against women, including so-called honour violence, were particularly common for women living in or originating from traditional areas in Turkey.

Conclusion
The framework of intersectionality is relevant to understanding our results, because structural inequalities in gender roles, gender role expectations as well as power imbalances among socio-economic classes collectively impact the suicidal behaviour of Turkish women. Moreover, the importance of violence against women points to the cultural continuity of the patriarchal and oppressive structures of Europe and Turkey. Suicide prevention efforts should address cultural attitudes underlying violence against women and girls through community education programmes, cultural and gender-sensitive care provision and jurisdiction.
Developing a Natural Language Processing tool to identify perinatal self-harm in electronic healthcare records
Authors: Ayre Karyn , Bittar André , Kam Joyce , Verma Somain , Howard Louise M. , Dutta Rina 
Published: August 2021

Background
Self-harm occurring within pregnancy and the postnatal year (“perinatal self-harm”) is a clinically important yet under-researched topic. Current research likely under-estimates prevalence due to methodological limitations. Electronic healthcare records (EHRs) provide a source of clinically rich data on perinatal self-harm.

Aims
(1) To create a Natural Language Processing (NLP) tool that can, with acceptable precision and recall, identify mentions of acts of perinatal self-harm within EHRs. (2) To use this tool to identify service-users who have self-harmed perinatally, based on their EHRs.

Methods
We used the Clinical Record Interactive Search system to extract de-identified EHRs of secondary mental healthcare service-users at South London and Maudsley NHS Foundation Trust. We developed a tool that applied several layers of linguistic processing based on the spaCy NLP library for Python. We evaluated mention-level performance in the following domains: span, status, temporality and polarity. Evaluation was done against a manually coded reference standard. Mention-level performance was reported as precision, recall, F-score and Cohen’s kappa for each domain. Performance was also assessed at ‘service-user’ level and explored whether a heuristic rule improved this. We report per-class statistics for service-user performance, as well as likelihood ratios and post-test probabilities.

Results
Mention-level performance: micro-averaged F-score, precision and recall for span, polarity and temporality >0.8. Kappa for status 0.68, temporality 0.62, polarity 0.91. Service-user level performance with heuristic: F-score, precision, recall of minority class 0.69, macro-averaged F-score 0.81, positive LR 9.4 (4.8–19), post-test probability 69.0% (53–82%). Considering the task difficulty, the tool performs well, although temporality was the attribute with the lowest level of annotator agreement.

Conclusions
It is feasible to develop an NLP tool that identifies, with acceptable validity, mentions of perinatal self-harm within EHRs, although with limitations regarding temporality. Using a heuristic rule, it can also function at a service-user-level.
Mental health among healthcare workers and other vulnerable groups during the COVID-19 pandemic and other coronavirus outbreaks: A rapid systematic review
Authors: Uphoff Eleonora P. , Lombardo Chiara , Johnston Gordon , Weeks Lauren , Rodgers Mark , Dawson Sarah , Seymour Catherine , Kousoulis Antonis A. , Churchill Rachel 
Published: August 2021

Introduction
Although most countries and healthcare systems worldwide have been affected by the COVID-19 pandemic, some groups of the population may be more vulnerable to detrimental effects of the pandemic on mental health than others. The aim of this systematic review was to synthesise evidence currently available from systematic reviews on the impact of COVID-19 and other coronavirus outbreaks on mental health for groups of the population thought to be at increased risk of detrimental mental health impacts.

Materials and methods
We conducted a systematic review of reviews on adults and children residing in a country affected by a coronavirus outbreak and belonging to a group considered to be at risk of experiencing mental health inequalities. Data were collected on symptoms or diagnoses of any mental health condition, quality of life, suicide or attempted suicide. The protocol for this systematic review was registered in the online PROSPERO database prior to commencing the review (https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=194264).

Results
We included 25 systematic reviews. Most reviews included primary studies of hospital workers from multiple countries. Reviews reported variable estimates for the burden of symptoms of mental health problems among acute healthcare workers, COVID-19 patients with physical comorbidities, and children and adolescents. No evaluations of interventions were identified. Risk- and protective factors, mostly for healthcare workers, showed the importance of personal factors, the work environment, and social networks for mental health.

Conclusions
This review of reviews based on primary studies conducted in the early months of the COVID-19 pandemic shows a lack of evidence on mental health interventions and mental health impacts on vulnerable groups in the population.
Epidemiology of fractures and their treatment in Malawi: Results of a multicentre prospective registry study to guide orthopaedic care planning
Authors: Schade Alexander Thomas , Mbowuwa Foster , Chidothi Paul , MacPherson Peter , Graham Simon Matthew , Martin Claude , Harrison William James , Chokotho Linda 
Published: August 2021

Importance
Injuries cause 30% more deaths than HIV, TB and malaria combined, and a prospective fracture care registry was established to investigate the fracture burden and treatment in Malawi to inform evidence-based improvements.

Objective
To use the analysis of prospectively-collected fracture data to develop evidence-based strategies to improve fracture care in Malawi and other similar settings.

Design
Multicentre prospective registry study.

Setting
Two large referral centres and two district hospitals in Malawi.

Participants
All patients with a fracture (confirmed by radiographs)—including patients with multiple fractures—were eligible to be included in the registry.

Exposure
All fractures that presented to two urban central and two rural district hospitals in Malawi over a 3.5-year period (September 2016 to March 2020).

Main outcome(s) and measure(s)
Demographics, characteristics of injuries, and treatment outcomes were collected on all eligible participants.

Results
Between September 2016 and March 2020, 23,734 patients were enrolled with a median age of 15 years (interquartile range: 10–35 years); 68.7% were male. The most common injuries were radius/ulna fractures (n = 8,682, 36.8%), tibia/fibula fractures (n = 4,036, 17.0%), humerus fractures (n = 3,527, 14.9%) and femoral fractures (n = 2,355, 9.9%). The majority of fractures (n = 21,729, 91.6%) were treated by orthopaedic clinical officers; 88% (20,885/2,849) of fractures were treated non-operatively, and 62.7% were treated and sent home on the same day. Open fractures (OR:53.19, CI:39.68–72.09), distal femoral fractures (OR:2.59, CI:1.78–3.78), patella (OR:10.31, CI:7.04–15.07), supracondylar humeral fractures (OR:3.10, CI:2.38–4.05), ankle fractures (OR:2.97, CI:2.26–3.92) and tibial plateau fractures (OR:2.08, CI:1.47–2.95) were more likely to be treated operatively compared to distal radius fractures.

Conclusions and relevance
The current model of fracture care in Malawi is such that trained orthopaedic surgeons manage fractures operatively in urban referral centres whereas orthopaedic clinical officers mainly manage fractures non-operatively in both district and referral centres. We recommend that orthopaedic surgeons should supervise orthopaedic clinical officers to manage non operative injuries in central and district hospitals. There is need for further studies to assess the clinical and patient reported outcomes of these fracture cases, managed both operatively and non-operatively.
Risk factor analysis of fragility fractures in rheumatoid arthritis: A 3-year longitudinal, real-world, observational, cohort study
Authors: Lin Po-Heng , Yu Shan-Fu , Chen Jia-Feng , Chen Ying-Chou , Lai Han-Ming , Chiu Wen-Chan , Hsu Chung-Yuan , Wang Yu-Wei , He Hsiao-Ru , Chen You-Yin , Cheng Chu-Yin , Cheng Tien-Tsai 
Published: August 2021

Objectives
To explore the risk factors for fragility fractures in rheumatoid arthritis (RA) patients using a 3-year longitudinal, observational cohort study.

Methods
This RA registry study included consecutive RA patients in the outpatient clinic of Chang Gung Memorial Hospital since September 1, 2014. The demographics, clinical characteristics, lifestyle, evidence of previous fracture, risk factors according to the Fracture Risk Assessment Tool (FRAX®), and the FRAX score of each participant were recorded. The participants were categorized into the new incident fracture (group A) and no incident fracture (group B) groups based on evidence or absence of new incident fractures and propensity score matching (age and gender, 1:2).

Results
Overall, 477 participants completed the 3-year observation period. After matching, 103 and 206 participants were allocated to groups A and B, respectively. The non-adjusted model revealed, presented as hazard ratio (HR) (95% confidence interval [CI]), that the presence of co-morbidity (1.80 [1.17–2.78], p = 0.008), Health Assessment Questionnaire Disability Index (1.35 [1.07–1.69], p = 0.010), lower baseline hip bone mineral density (0.11 [0.02–0.48], p = 0.004), longer disease duration (1.02 [1.00–1.04], p = 0.026), higher FRAX score of major fracture (1.03 [1.02–1.04], p<0.001) or hip fracture (1.03 [1.02–1.04], p<0.001), and previous fracture history (2.65 [1.79–3.94], p<0.001) were associated with new incident fracture. After adjustment, it was disclosed that a previous fracture is an independent risk factor for fragility fractures in RA patients (2.17 [1.20–3.90], p = 0.010).

Conclusions
In addition to aging and disease-related factors, previous fracture history is the most important risk factor for fragility fractures in RA patients.
Economic analysis of the costs associated with Hidradenitis suppurativa at a German University Hospital
Authors: Frings Verena Gerlinde , Schöffski Oliver , Goebeler Matthias , Presser Dagmar 
Published: August 2021

Background and objectivesHidradenitis suppurativa (HS) significantly affects the patient`s quality of life and leads to multiple medical consultations. Aim of this study was to assess the utilization of medical care of HS patients.Patients and methodsAll patients presenting in 2017 for an outpatient, day patient and / or inpatient treatment with leading claim type HS at the Department of Dermatology, University Hospital Würzburg, were included. Primary outcome was the economic burden of HS patients, measured by resource utilization in €.ResultsThe largest share of the direct medical costs for HS were the inpatient costs with a leading surgical diagnosis-related group (DRG). Antiseptics were the predominant topical prescription. While doxycycline was the most frequently prescribed systemic therapy, adalimumab was the main cost driver. The difference between in-patient (€ 110.25) and outpatient (€ 26.34) direct non-medical costs was statistically significant (p < 0.001). With regards to indirect medical costs, a statistically significantly higher loss of gross value added (inpatient mean € 1,827.00; outpatient mean € 203.00) and loss of production (inpatient mean € 1,026.00; outpatient mean € 228.00) could be noted (p < 0.001), respectively.ConclusionsThe present study on disease-specific costs of HS confirms that the hospital care of patients with this disease is cost-intensive. However, the primary goal of physicians is not and should not be to save costs regarding their patients`treatment, but rather the premise to utilize the existing resources as efficient as possible. Reducing the use of costly therapeutics and inpatient stays therefore requires more effective therapy options with an improved cost-benefit profile.