bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of pirfenidone in idiopathic pulmonary fibrosis according to the autoantibody status: a retrospective cohort study
Authors: Song Myung Jin , Lee Sang Hoon , Jung Ji Ye , Kang Young Ae , Park Moo Suk , Kim Young Sam , Chang Joon , Kim Song Yee
Published: May 2021

Background

Pirfenidone is an anti-fibrotic agent shown to slow the progression of idiopathic pulmonary fibrosis (IPF). However, its effectiveness in association with serological autoimmune features in IPF remains unclear.

Methods

We retrospectively reviewed the medical records of patients with IPF treated at a tertiary care hospital in South Korea. The autoantibody status was defined as positive if we detected autoantibodies meeting the serological domain criteria for interstitial pneumonia with autoimmune features or anti-neutrophil cytoplasmic antibodies.

Results

We included 142 patients with IPF treated with pirfenidone for over six months (93 were autoantibody-positive and 49 were autoantibody-negative). The mean age was 69.5 ± 7.3 years, and 77.5% of the patients were male. The adjusted mean changes over one year were − 34.4 and − 112.2 mL (p = 0.168) in forced vital capacity (FVC), and − 0.53 and − 0.72 mL/mmHg/min (p = 0.356) in the lungs diffusion capacity for carbon monoxide (DLCO) in the autoantibody-negative and autoantibody-positive groups, respectively.

Conclusions

Reductions in FVC and DLCO were similar in autoantibody-positive and autoantibody-negative patients with IPF treated with pirfenidone. Pirfenidone is effective in attenuating the progression of IPF, irrespective of the autoantibody status.
Three‐dimensional‐printed customized prosthesis for pubic defect: clinical outcomes in 5 cases at a mean follow‐up of 24 months
Authors: Zhang Yuqi , Min Li , Lu Minxun , Wang Jie , Wang Yitian , Luo Yi , Zhou Yong , Duan Hong , Tu Chongqi
Published: May 2021

Background

Pubic defects resulting from type III hemipelvectomy are commonly not reconstructed due to the need to preserve the weight-bearing axis. However, the opening of the anterior pelvic ring will inevitably lead to increased pelvic instability. To improve long-term pelvic stability, three-dimensional (3D)-printed customized prostheses were designed to reconstruct pubic defects. This study presents and evaluates the short-term clinical outcomes and complications from the use of this construct.

Methods

Five patients who underwent type III hemipelvectomy and 3D-printed customized prosthesis reconstruction at our institution between 2017 and 2019 were retrospectively analysed. Operation time and blood loss during the operation were recorded. Local and functional recovery was assessed. Prosthetic position and osseointegration were evaluated. Oncology results and complications were recorded.

Results

The prostheses consisted of three with stems and two without. The mean follow-up time was 23.6 months. At the last follow-up, all five patients were alive with no evidence of disease. No deep infections or local recurrence had occurred. The mean blood loss and mean intraoperative time were 1680 ml and 294 min, respectively. The mean functional MSTS score at the final follow-up was 29.8. Fretting wear around the prosthetic stem was found in 3 patients, while bone wear on the normal-side pubis was found in 2 patients. Osseointegration was observed in all patients.

Conclusions

3D-printed customized prostheses for reconstructing pubic bone defects after type III hemipelvectomy showed acceptable early outcomes. The good outcomes were inseparable from the precision prosthesis design, strict surgical procedures, and sensible postoperative management.
Different sterilization and disinfection methods used for human tendons – a systematic review using mechanical properties to evaluate tendon allografts
Authors: Farago Denes , Kozma Blanka , Kiss Rita Maria
Published: May 2021

Background

It is important to know the biomechanical properties of an allograft. This is because when looking to do a transplant of a tendon, the tendon must have very similar biomechanical properties to the original tendon. To use tendon allografts, it is critical to properly sterilize the tendon before implantation. In past decades, several sterilization procedures have been used. This study aimed to systematically evaluate the existing literature to compare the values of failure load/ultimate strength and Young’s modulus of elasticity of different sterilization methods on commonly used tendon allografts. Five major scientific literature databases (Web of Science, Science Direct, Scopus, PLOS ONE, Hindawi) and additional sources were used.

Results

Studies used had to show a particular sterilization method. Studies were identified to meet the following inclusion criteria: is a controlled laboratory study, gamma irradiation (dose reported), and other sterilization methods. Search for publications dated between 1991 and March 31st, 2020. The database search and additional sources resulted in 284 records. Two hundred thirty records eliminated during the screening for various reasons. The number of articles used in the final synthesis was 54.

Conclusions

Identified sterilization methods (gamma irradiation, ethylene oxid, supercritical carbon dioxide (SCCO2), BioCleanse, Electron Beam) are offered as a catalog of potential methods.

As a result of the broadness of the present research, it provides an overview of sterilization methods and their effect on the mechanical properties (failure load and Young’s modulus of elasticity) of tendons. It does not stand for the state-of-the-art of any single process. Based on a systematic literature review, we recommend freezing and gamma irradiation or electron beam at 14.8–28.5 kGy. These methods are effective at keeping or improving the mechanical properties, while fully sterilizing the inside and the outside of the tendon. Other sterilization method (ethylene oxide, supercritical carbon dioxide (SCCO2), BioCleanse) deteriorated the mechanical properties. These methods are not recommended.
A novel surgical approach for hypopharyngeal carcinoma resection via the paraglottic space
Authors: Li Wenming , Wei Dongmin , Qian Ye , Cao Shengda , Liu Dayu , Lei Dapeng , Pan Xinliang
Published: May 2021

Background

Conservative surgery has proven advantageous in controlling hypopharyngeal squamous cell carcinoma (HSCC) and preserving speech and swallowing function in carefully selected patients, typically with early T-stages diseases. A variety of modified surgical procedures or techniques have been proposed.

Methods

In this study, we present a novel surgical approach for hypopharyngeal carcinoma resection utilizing the paraglottic space.

Results

The paraglottic space approach can help expose neoplasms under direct vision and save mucosa during surgery while sufficiently preserving laryngeal function, thus benefiting postoperative swallowing and reducing complications. A large cohort of 426 patients with HSCC underwent surgical treatment at our institution using this approach, demonstrating an overall survival (OS) rate of 52.3% and low incidences of postoperative complications.

Conclusions

This surgical approach can be applied in patients with the lesions that do not involve the paraglottic space.
Clinical significance and risk factors of urethrovesical anastomotic urinary leakage following robot-assisted radical prostatectomy: a multi-institutional study
Authors: Kakutani Shigenori , Takeshima Yuta , Yamada Yuta , Fujimura Tetsuya , Nagamoto Shoichi , Enomoto Yutaka , Hakozaki Yuji , Kimura Naoki , Teshima Taro , Akiyama Yoshiyuki , Sato Yusuke , Kawai Taketo , Yamada Daisuke , Kume Haruki
Published: May 2021

Background

There has been a limited number of reports on the significance and risk factors of urethrovesical anastomotic urinary leakage (AUL) following robot-assisted radical prostatectomy (RARP). We aimed to analyze the clinical significance of AUL and evaluated its risk factors.

Methods

We conducted a multi-institutional study to review patients with prostate cancer undergoing RARP in three centers (The University of Tokyo Hospital, Mitsui Memorial Hospital, and Chiba Tokushukai Hospital). “Positive AUL” was defined as urinary extravasation at the anastomosis detected by post-operative cystogram and was further categorized into minor or major AUL. Univariate and multivariate analyses were performed to identify predictors of AUL. Postoperative continence rates and time to achieve continence were also analyzed.

Results

A total of 942 patients underwent RARP for prostate cancer in 3 centers. Of these patients, a cystogram after the RARP procedure was not performed in 26 patients leaving 916 patients for the final analysis. AUL was observed in 56 patients (6.1%); 34 patients (3.7%) with minor AUL and 22 patients (2.4%) with major AUL. Patients with major AUL exhibited a significantly longer time to achieve continence than those without major AUL. Multivariate analysis demonstrated that longer console time (≥ 184 min) was significantly associated with overall AUL, and higher body mass index (≥ 25 g/kg2) was a significant predictor of both major and overall AUL.

Conclusions

The presence of major AUL was associated with the achievement of urinary continence, suggesting clinical relevance of its diagnosis by postoperative cystogram. A selective cystogram has been proposed for high-risk cases. Furthermore, identification of the risk factors of AUL will lead to optimal application.
Acromegaly and non‐parathyroid hormone‐dependent hypercalcemia: a case report and literature review
Authors: Shi Shaomin , Zhang Lan , Yu Yerong , Wang Chun , Li Jianwei
Published: May 2021

Background

Hypercalcemia associated with acromegaly is mostly parathyroid hormone (PTH)-dependent, being caused by parathyroid hyperplasia or adenoma, which are common in individuals with multiple endocrine adenomatosis-1 (MEN-1). The rare occurrence of non-PTH-dependent hypercalcemia associated with acromegaly is attributable to complex factors involving increased intestinal calcium absorption, enhanced bone calcium release, and reduced urinary calcium elimination. Although patients with acromegaly often have mild hyperphosphatemia and hypercalciuria, clinically significant hypercalcemia is extremely rare.

Case presentation

Here we present a case of non-PTH-dependent hypercalcemia associated with a growth hormone- (GH) and prolactin- (PRL) co-secreting pituitary macroadenoma. A 37-year-old Chinese man presented with a 6-year history of increasing ring and shoe sizes and was referred to the West China Hospital of Sichuan University for treatment of acromegaly. Pituitary magnetic resonance imaging (MRI) showed a 2.0 × 1.7 × 1.9 cm macroadenoma. Laboratory examinations revealed high serum concentrations of GH and PRL with mild hypercalcemia, hyperphosphatemia, hypercalciuria, inhibited PTH concentration, and increased bone turnover markers. Administration of cabergoline together with somatostatin resulted in sharp decreases in his GH, PRL, and serum and urinary calcium concentrations. These values were further reduced 5 months later and his PTH and bone turnover markers gradually returned to within the normal range.

Conclusions

Mild hyperphosphatemia and hypercalciuria are common in individuals with acromegaly and deserve attention because they may contribute to osteoporosis and urolithiasis. However, overt hypercalcemia is rare in such individuals. It is usually attributable to a coexisting parathyroid hyperplasia or adenoma, rarely being non-PTH-dependent. In such cases, the hypercalcemia is attributable to excessive PRL and hypogonadism and reverses with remission of acromegaly.
The use of Oral Health Impact on Daily Living (OHIDL) transition scale in measuring the change in oral health-related quality of life among older adults
Authors: Liu Jian , Wong May Chun Mei , Lo Edward Chin Man
Published: May 2021

Background

This longitudinal study aimed to evaluate the longitudinal validity and reliability of the Oral Health Impact on Daily Living (OHIDL) transition scale and measure the perceived change in oral health-related quality of life (OHRQoL) after dental treatments among older adults.

Methods

OHIDL was administered to older adults who sought dental treatments. Participants were asked to assess changes in impact for each OHIDL item retrospectively compared with that before the treatment. The responsiveness, minimal clinically important difference (MCID), internal consistency and test–retest reliability of the OHIDL transition scale were evaluated. Multiple linear regression was employed to predict the change in oral health impacts after dental treatment. Beta coefficients (β) and 95% confidence intervals (CI) were reported.

Results

One hundred and seventy-six participants were followed-up with upon completing their dental treatments. The follow-up rate was 70.4% (176/250). The OHIDL transition score strongly correlated with the global rating of change (rs = 0.76, P < 0.01). MCID was determined by participants who reported “a little improved” in the perceived oral health impacts, and their mean transition score was 3.3. Cronbach’s alpha of the transition scale was 0.87, and many items had a test–retest correlation of at least 0.60. Patients who perceived more oral health impacts at baseline as measured by the total intensity score (β = 0.32, 95% CI: 0.20, 0.44, P < 0.001) and those who had received endodontic treatment (β = 8.04, 95% CI: 4.36, 11.71, P < 0.001) would have more improvement in perceived oral health impacts.

Conclusions

The OHIDL transition scale has good psychometric properties and is sensitive to change over time. After receiving dental treatment, most of the study’s older adults perceived a lower intensity of OHIDL.

Clinical relevance

The OHIDL transition scale is a valid and reliable instrument to measure the change in OHRQoL after dental treatments.
A bibliometric analysis of global research output on network meta-analysis
Authors: Shi Jiyuan , Gao Ya , Ming Liu , Yang Kelu , Sun Yue , Chen Ji , Shi Shuzhen , Geng Jie , Li Lun , Wu Jiarui , Tian Jinhui
Published: May 2021

Background

Network meta-analysis (NMA) has been widely used in the field of medicine and health, but the research topics and development trends are still unclear. This study aimed to identify the cooperation of countries and institutes and explore the hot topics and future prospects in the field of NMA.

Methods

Data of publications were downloaded from the Web of Science Core Collection. We used CiteSpace V, HistCite 2.1, and Excel 2016 to analyze literature information, including years, journals, countries, institutes, authors, keywords, and co-cited references.

Results

NMA research developed gradually before 2010 and rapidly in the following years. 2846 NMA studies were published in 771 journals in six languages. The PLoS One (110, 3.9%) was the most productive journal, and N Engl J Med (5904 co-citations) was the most co-cited journal. The most productive country was the United States (889, 31%) and the most productive institute was the University of Bristol (113, 4.0%). The active collaborations were observed between developed countries and between productive institutes. Of the top 10 authors, four were from the UK, and among the top 10 co-cited authors, six were from the UK. Randomized evidence, oral anti-diabetic drugs, coronary artery bypass, certolizumab pegol, non-valvular atrial fibrillation, and second-line antihyperglycemic therapy were the hot topics in this field.

Conclusions

NMA studies have significantly increased over the past decade, especially from 2015 to 2017. Compared with developing countries, developed countries have contributed more to these publications and have closer cooperation, indicating that cooperation between developed and developing countries should be further strengthened. The treatment of diabetes, cardiovascular diseases, and immune rheumatism are the main hot topics.
As predicted by theory: choice and competition in a publicly funded and regulated regional health system yield improved access and cost control
Authors: Wohlin Jonas , Fischer Clara , Carlsson Karin Solberg , Korlén Sara , Mazzocato Pamela , Savage Carl , Stalberg Holger , Brommels Mats
Published: May 2021

Background

New Public Management (NPM) has been widely used to introduce competition into public healthcare. Results have been mixed, and there has been much controversy about the appropriateness of a private sector-mimicking governance model in a public service. One voice in the debate suggested that rather than discussing whether competition is “good” or “bad” the emphasis should be on exploring the conditions for a successful implementation.

Methods

We report a longitudinal case study of the introduction of patient choice and allowing private providers to enter a publicly funded market. Patients in need of hip or knee replacement surgery are allowed to choose provider, and those are paid a fixed reimbursement for the full care episode (bundled payment). Providers are financially accountable for complications. Data on number of patients, waiting lists and times, costs to the public purchaser, and complications were collected from public registries. Providers were interviewed at three points in time during a nine-year follow-up period. Time-series of the quantitative data were exhibited and the views of actors involved were explored in a thematic analysis of the interviews.

Results

The policy goals of improving access to care and care quality while controlling total costs were achieved in a sustained way. Six themes were identified among actors interviewed and those were consistent over time. The design of the patient choice model was accepted, although all providers were discontent with the level of reimbursement. Providers felt that quality, timeliness of service and staff satisfaction had improved. Public and private providers differed in terms of patient-mix and developed different strategies to adjust to the reimbursement system. Private providers were more active in marketing and improving operation room efficiency. All providers intensified cooperation with referring physicians. Close attention was paid to following the rules set by the purchaser.

Discussion and conclusions

The sustained cost control was an effect of bundled payment. What this study shows is that both public and private providers adhere long-term to regulations by a public purchaser that also controls entrance to the market. The compensation was fixed and led to competition on quality, as predicted by theory.
Digitalisation of municipal healthcare collaboration with volunteers: a case study applying normalization process theory
Authors: Fredriksen Erica , Thygesen Elin , Moe Carl E. , Martinez Santiago
Published: May 2021

Background

Increasing use of volunteers in healthcare requires structured collaboration between healthcare services and volunteers. The aim of this research was to explore critical issues and strategies in the implementation process of a digital solution for collaboration with and coordination of volunteers in municipal healthcare services.

Methods

Qualitative data collection was used to study implementation of a digital system for collaboration with volunteers in three Norwegian municipalities. Three rounds of interviews were conducted with healthcare employees from a volunteer centre and from municipality healthcare units in three municipalities: before implementation, and 6 and 12 months after deployment. Observations of healthcare employees training and use of the system were also done.

Results

An inductive analysis resulted in eleven themes that were grouped based on the four constructs of the normalisation process theory (NPT), plus two themes that fall outside those constructs. Coherence (understanding of the intervention) was high among the employees prior to the intervention. They expected the system to meet several of their needs and increase efficiency, structure and overview. In addition, they expected the system to benefit recruitment strategies along with their matching processes. Cognitive participation (engagement and commitment towards the intervention): employees from two of the municipalities reported absence of leadership and management guidance during the process, management of expectations and clarification of their roles. In the third, there was high engagement and management involvement in the implementation process. Collective action (whether the intervention is carried out): the employees reported time-consuming preparations. Engagement varied between the municipalities. There was a lack of commitment in two due to ongoing reorganisation, in these, the system was partly or not implemented. The third municipality implemented and fully piloted the system. Reflexive monitoring (appraisal towards the system and its impact on practice): the employees learned throughout testing of the system and realised that there were several benefits that could improve their working routines.

Conclusion

Crucial aspects for implementation of the digital tool for collaboration with volunteers include having structure “in place”, establishing policies for involving volunteers, defining clear roles and expectations and involving management and key people (“champions”) to drive the implementation.
Molecular engineering improves antigen quality and enables integrated manufacturing of a trivalent subunit vaccine candidate for rotavirus
Authors: Dalvie Neil C. , Brady Joseph R. , Crowell Laura E. , Tracey Mary Kate , Biedermann Andrew M. , Kaur Kawaljit , Hickey John M. , Kristensen D. Lee , Bonnyman Alexandra D. , Rodriguez-Aponte Sergio A. , Whittaker Charles A. , Bok Marina , Vega Celina , Mukhopadhyay Tarit K. , Joshi Sangeeta B. , Volkin David B. , Parreño Viviana , Love Kerry R. , Love J. Christopher
Published: May 2021

Background

Vaccines comprising recombinant subunit proteins are well-suited to low-cost and high-volume production for global use. The design of manufacturing processes to produce subunit vaccines depends, however, on the inherent biophysical traits presented by an individual antigen of interest. New candidate antigens typically require developing custom processes for each one and may require unique steps to ensure sufficient yields without product-related variants.

Results

We describe a holistic approach for the molecular design of recombinant protein antigens—considering both their manufacturability and antigenicity—informed by bioinformatic analyses such as RNA-seq, ribosome profiling, and sequence-based prediction tools. We demonstrate this approach by engineering the product sequences of a trivalent non-replicating rotavirus vaccine (NRRV) candidate to improve titers and mitigate product variants caused by N-terminal truncation, hypermannosylation, and aggregation. The three engineered NRRV antigens retained their original antigenicity and immunogenicity, while their improved manufacturability enabled concomitant production and purification of all three serotypes in a single, end-to-end perfusion-based process using the biotechnical yeast Komagataella phaffii.

Conclusions

This study demonstrates that molecular engineering of subunit antigens using advanced genomic methods can facilitate their manufacturing in continuous production. Such capabilities have potential to lower the cost and volumetric requirements in manufacturing vaccines based on recombinant protein subunits.
Some lessons for malaria from the Global Polio Eradication Initiative
Authors: González-Silva Matiana , Rabinovich N. Regina
Published: May 2021

The Global Polio Eradication Initiative (GPEI) was launched in 1988 with the aim of completely clearing wild polio viruses by 2000. More than three decades later, the goal has not been achieved, although spectacular advances have been made, with wild polio virus reported in only 2 countries in 2019. In spite of such progress, novel challenges have been added to the equation, most importantly outbreaks of vaccine-derived polio cases resulting from reversion to neurovirulence of attenuated vaccine virus, and insufficient coverage of vaccination. In the context of the latest discussions on malaria eradication, the GPEI experience provides more than a few lessons to the malaria field when considering a coordinated eradication campaign. The WHO Strategic Advisory Committee on Malaria Eradication (SAGme) stated in 2020 that in the context of more than 200 million malaria cases reported, eradication was far from reach in the near future and, therefore, efforts should remain focused on getting back on track to achieve the objectives set by the Global Technical Strategy against Malaria (2016–2030). Acknowledging the deep differences between both diseases and the stages they are in their path towards eradication, this paper draws from the history of GPEI and highlights relevant insights into what it takes to eradicate a pathogen in fields as varied as priority setting, global governance, strategy, community engagement, surveillance systems, and research. Above all, it shows the critical need for openness to change and adaptation as the biological, social and political contexts vary throughout the time an eradication campaign is ongoing.
The spatiotemporal distribution of historical malaria cases in Sweden: a climatic perspective
Authors: Chen Tzu Tung , Ljungqvist Fredrik Charpentier , Castenbrandt Helene , Hildebrandt Franziska , Ingholt Mathias Mølbak , Hesson Jenny C. , Ankarklev Johan , Seftigen Kristina , Linderholm Hans W.
Published: May 2021

Background

Understanding of the impacts of climatic variability on human health remains poor despite a possibly increasing burden of vector-borne diseases under global warming. Numerous socioeconomic variables make such studies challenging during the modern period while studies of climate–disease relationships in historical times are constrained by a lack of long datasets. Previous studies have identified the occurrence of malaria vectors, and their dependence on climate variables, during historical times in northern Europe. Yet, malaria in Sweden in relation to climate variables is understudied and relationships have never been rigorously statistically established. This study seeks to examine the relationship between malaria and climate fluctuations, and to characterise the spatio-temporal variations at parish level during severe malaria years in Sweden 1749–1859.

Methods

Symptom-based annual malaria case/death data were obtained from nationwide parish records and military hospital records in Stockholm. Pearson (rp) and Spearman’s rank (rs) correlation analyses were conducted to evaluate inter-annual relationship between malaria data and long meteorological series. The climate response to larger malaria events was further explored by Superposed Epoch Analysis, and through Geographic Information Systems analysis to map spatial variations of malaria deaths.

Results

The number of malaria deaths showed the most significant positive relationship with warm-season temperature of the preceding year. The strongest correlation was found between malaria deaths and the mean temperature of the preceding June–August (rs = 0.57, p < 0.01) during the 1756–1820 period. Only non-linear patterns can be found in response to precipitation variations. Most malaria hot-spots, during severe malaria years, concentrated in areas around big inland lakes and southern-most Sweden.

Conclusions

Unusually warm and/or dry summers appear to have contributed to malaria epidemics due to both indoor winter transmission and the evidenced long incubation and relapse time of P. vivax, but the results also highlight the difficulties in modelling climate–malaria associations. The inter-annual spatial variation of malaria hot-spots further shows that malaria outbreaks were more pronounced in the southern-most region of Sweden in the first half of the nineteenth century compared to the second half of the eighteenth century.
Resilience and pain catastrophizing among patients with total knee arthroplasty: a cohort study to examine psychological constructs as predictors of post-operative outcomes
Authors: Nwankwo Vesta C. , Jiranek William A. , Green Cynthia L. , Allen Kelli D. , George Steven Z. , Bettger Janet Prvu
Published: May 2021

Background

Patients’ psychological health may influence recovery and functional outcomes after total knee arthroplasty (TKA). Pain catastrophizing, known to be associated with poor function following TKA, encompasses rumination, magnification, and helplessness that patients feel toward their pain. Resilience, however, is an individual's ability to adapt to adversity and may be an important psychological construct that supersedes the relationship between pain catastrophizing and recovery. In this study we sought to identify whether pre-operative resilience is predictive of 3-month postoperative outcomes after adjusting for pain catastrophizing and other covariates.

Methods

Patients undergoing TKA between January 2019 and November 2019 were included in this longitudinal cohort study. Demographics and questionnaires [Brief Resilience Scale (BRS), Pain Catastrophizing Scale (PCS), Knee injury and Osteoarthritis Outcome Score, Junior (KOOS, JR.) and Patient-Reported Outcomes Measurement Information System Physical and Mental Health (PROMIS PH and MH, respectively)] were collected preoperatively and 3 months postoperatively. Multivariable regression was used to test associations of preoperative BRS with postoperative outcomes, adjusting for PCS and other patient-level sociodemographic and clinical characteristics.

Results

The study cohort included 117 patients with a median age of 67.0 years (Q1–Q3: 59.0–72.0). Fifty-three percent of patients were women and 70.1% were white. Unadjusted analyses identified an association between resilience and post-operative outcomes and the relationship persisted for physical function after adjusting for PCS and other covariates; in multivariable linear regression analyses, higher baseline resilience was positively associated with better postoperative knee function (β = 0.24, p = 0.019) and better general physical health (β = 0.24, p = 0.013) but not general mental health (β = 0.04, p = 0.738).

Conclusions

Our prospective cohort study suggests that resilience predicts postoperative knee function and general physical health in patients undergoing TKA. Exploring interventions that address preoperative mental health and resilience more specifically may improve self-reported physical function outcomes of patients undergoing TKA.
Prognostic value of the C-reactive protein to albumin ratio in colorectal cancer: an updated systematic review and meta-analysis
Authors: Liao Chun-Kai , Yu Yen-Lin , Lin Yueh-Chen , Hsu Yu-Jen , Chern Yih-Jong , Chiang Jy-Ming , You Jeng-Fu
Published: May 2021

Backgrounds

The inflammatory biomarker “C-reactive protein to albumin ratio (CAR)” has been reported to significantly correlate to a variety of human cancers. However, there are conflicting results regarding the prognostic value of CAR in colorectal cancer. Previous studies mainly assessed patients in Eastern countries, so their findings may not be applicable to the Western population. Therefore, this updated meta-analysis aimed to investigate the prognostic value of pre-treatment CAR and outcomes of patients with colorectal cancer.

Methods

We conducted a systematic search for eligible literature until October 31, 2020, using PubMed and Embase databases. Studies assessing pre-treatment CAR and outcomes of colorectal cancer were included. Outcome measures included overall survival, disease-free survival, progression-free survival, and clinicopathological features. The pooled hazard ratios (HR) with 95% confidence intervals (CI) were used as effective values.

Results

A total of 15 studies involving 6329 patients were included in this study. The pooled results indicated that a high pre-treatment CAR was associated with poor overall survival (HR 2.028, 95% CI 1.808−2.275, p < 0.001) and poor disease-free survival/progression-free survival (HR 1.768, 95% CI 1.321–2.365, p < 0.001). Subgroup analysis revealed a constant prognostic value of the pre-treatment CAR despite different study regions, sample size, cancer stage, treatment methods, or the cut-off value used. We also noted a correlation between high pre-treatment CAR and old age, male sex, colon cancer, advanced stage (III/IV), large tumor size, poor differentiation, elevated carcinoembryonic antigen levels, neutrophil-to-lymphocyte ratio, and the modified Glasgow prognostic score.

Conclusions

High pre-treatment CAR was associated with poor overall survival, disease-free survival, and progression-free survival in colorectal cancer. It can serve as a prognostic marker for colorectal cancer in clinical practice.
Uganda’s response to sexual harassment in the public health sector: from “Dying Silently” to gender-transformational HRH policy
Authors: Newman Constance , Nayebare Alice , Neema Stella , Agaba Allan , Akello Lilian Perry
Published: May 2021

Introduction

Sexual harassment is a ubiquitous problem that prevents women’s integration and retention in the workforce. Its prevalence had been documented in previous health sector studies in Uganda, indicating that it affected staffing shortages and absenteeism but was largely unreported. To respond, the Ministry of Health needed in-depth information on its employees’ experiences of sexual harassment and non-reporting.

Methods

Original descriptive research was conducted in 2017 to identify the nature, contributors, dynamics and consequences of sexual harassment in public health sector workplaces and assess these in relation to available theories. Multiple qualitative techniques were employed to describe experiences of workplace sexual harassment in health employees’ own voices. Initial data collection involved document reviews to understand the policy environment, same-sex focus group discussions, key informant interviews and baseline documentation. A second phase included mixed-sex focus group discussions, in-depth interviews and follow up key informant interviews to deepen and confirm understandings.

Results

A pattern emerged of men in higher-status positions abusing power to coerce sex from female employees throughout the employment cycle. Rewards and sanctions were levied through informal management/ supervision practices requiring compliance with sexual demands or work-related reprisals for refusal. Abuse of organizational power reinforced vertical segregation, impeded women’s productive work and abridged their professional opportunities. Unwanted sexual attention including non-consensual touching, bullying and objectification added to distress. Gender harassment which included verbal abuse, insults and intimidation, with real or threatened retaliation, victim-blaming and gaslighting in the absence of organizational regulatory mechanisms all suppressed reporting. Sexual harassment and abuse of patients by employees emerged inadvertently.

Discussion/conclusions

Sex-based harassment was pervasive in Ugandan public health workplaces, corrupted management practices, silenced reporting and undermined the achievement of human resources goals, possibilities overlooked in technical discussions of support supervision and performance management. Harassment of both health system patients and employees appeared normative and similar to “sextortion.” The mutually reinforcing intersections of sex-based harassment and vertical occupational segregation are related obstacles experienced by women seeking leadership positions. Health systems leaders should seek organizational and sectoral solutions to end sex-based harassment and make gender equality a human resource for health policy priority.
Characterization and distribution of medicine vendors in 2 states in Nigeria: implications for scaling health workforce and family planning services
Authors: Daini Babajide Oluseyi , Okafor Emeka , Baruwa Sikiru , Adeyanju Oluwafunmito , Diallo Rodio , Anyanti Jennifer
Published: May 2021

Background

In 2014, Nigeria issued the task-shifting/sharing policy for essential health services, which aimed to fill the human resource gap and improve the delivery of health services across the country. This study focuses on the characteristics, spread, and family planning (FP) stocking practices of medicine vendors in Lagos and Kaduna, assessing the influence of medical training on the provision and stocking of FP services and commodities by vendors.

Methods

We conducted a census of all Patent Medicines stores (PMS) followed up with a facility assessment among 10% of the mapped shops, utilizing an interviewer-administered questionnaire. Bivariate analysis was conducted using the Chi-square test, and multiple logistic regression was used to estimate the adjusted odds ratio (OR) and confidence intervals (CI) for the test of significance in the study.

Results

A total of 8318 medicine shops were enumerated (76.2% urban). There were 39 shops per 100,000 population in both states on average. About half (50.9%) were manned by a medicine vendor without assistance, 25.7% claimed to provide FP services to > 2 clients per week, and 11.4% were not registered with the regulatory body or any professional association. Also, 28.2% of vendors reported formal medical training, with 56.3% of these medically trained vendors relatively new in the business, opening within the last 5 years. Vendors utilized open drug markets as the major source of supply for FP products. Medical training significantly increased the stocking of FP products and inhibited utilization of open drug markets.

Conclusion

Patent and Proprietary Medicines Vendor (PPMVs) have continued to grow progressively in the last 5 years, becoming the most proximal health facility for potential clients for different health services (especially FP services) across both Northern and Southern Nigeria, now comprising a considerable mass of medically trained personnel, able to deliver high-quality health services and complement existing healthcare infrastructure, if trained. However, restrictions on services within the PPMV premise and lack of access to quality drugs and commodities have resulted in poor practices among PPMVs. There is therefore a need to identify, train, and provide innovative means of improving access to quality-assured products for this group of health workers.
Barriers and facilitators to conducting economic evaluation studies of Gulf Cooperation Council (GCC) countries: a survey of researchers
Authors: Almazrou Saja H. , Alaujan Shiekha S. , Al-Aqeel Sinaa A.
Published: May 2021

Background

The number of published economic evaluations of Gulf Cooperation Council (GCC) countries is notably scarce. Limited local evidence could have a major impact on the implementation of economic evaluation recommendations in the decision-making process in GCC countries. Little is known about the factors affecting researchers who seek to conduct economic evaluations. Therefore, we aimed to assess researcher barriers and facilitators in conducting such studies of GCC countries.

Methods

A cross-sectional survey of health economic researchers working in GCC countries was conducted online between January and February 2020. The survey instrument collected researchers’ perceived barriers and facilitators and demographic information. For barriers, respondents rated their agreement on a 5-point Likert scale ranging from “strongly disagree” to “strongly agree”. For facilitators, respondents rated the importance of each facilitator on a six-point scale ranging from “extremely important” to “not very important”. Then, participants were asked to select the three most important barriers and facilitators from the lists. The data collected were examined using descriptive analysis.

Results

Fifty-one researchers completed the survey (37% response rate). The majority of participants (more than 80%) agreed that lack of quality of effectiveness data and restricted access to unit cost data are the main barriers to conducting economic research. Availability of relevant local data was reported as an important facilitator, followed by collaboration between health economic researchers, policy-makers and other stakeholders.

Conclusions

The results of this study provide an exploratory view of the issues faced by health economics researchers in GCC countries. Recommendations to GCC countries based on international experiences, such as to use real-world data in economic evaluation research, were provided.
Agenda setting for essential medicines policy in sub-Saharan Africa: a retrospective policy analysis using Kingdon’s multiple streams model
Authors: Mhazo Alison T. , Maponga Charles C.
Published: May 2021

Background

Lack of access to essential medicines presents a significant threat to achieving universal health coverage (UHC) in sub-Saharan Africa. Although it is acknowledged that essential medicines policies do not rise and stay on the policy agenda solely through rational deliberation and consideration of technical merits, policy theory is rarely used to direct and guide analysis to inform future policy implementation. We used Kingdon’s model to analyse agenda setting for essential medicines policy in sub-Saharan Africa during the formative phase of the primary healthcare (PHC) concept.

Methods

We retrospectively analysed 49 published articles and 11 policy documents. We used selected search terms in EMBASE and MEDLINE electronic databases to identify relevant published studies. Policy documents were obtained through hand searching of selected websites. We also reviewed the timeline of essential medicines policy milestones contained in the Flagship Report, Medicines in Health Systems: Advancing access, affordability and appropriate use, released by WHO in 2014. Kingdon’s model was used as a lens to interpret the findings.

Results

We found that unsustainable rise in drug expenditure, inequitable access to drugs and irrational use of drugs were considered as problems in the mid-1970s. As a policy response, the essential drugs concept was introduced. A window of opportunity presented when provision of essential drugs was identified as one of the eight components of PHC. During implementation, policy contradictions emerged as political and policy actors framed the problems and perceived the effectiveness of policy responses in a manner that was amenable to their own interests and objectives.

Conclusion

We found that effective implementation of an essential medicines policy under PHC was constrained by prioritization of trade over public health in the politics stream, inadequate systems thinking in the policy stream and promotion of economic-oriented reforms in both the politics and policy streams. These lessons from the PHC era could prove useful in improving the approach to contemporary UHC policies.
Exploring physicians and patients’ perspectives for current interventions on thyroid nodules using a MCDA method
Authors: Karrer Linda , Zhang Shixuan , Kühlein Thomas , Kolominsky-Rabas Peter L.
Published: May 2021

Background

The detection of thyroid cancer has rapidly increased over last few decades without an increase in disease specific mortality. Several studies claim that the diagnose of thyroid nodules through routine ultrasound imaging is often the trigger for cascade effects leading to unnecessary follow-up over many years or to invasive treatment. The objective of this study was to explore physicians’ and patients’ insights and preferences regarding the current interventions on thyroid nodules.

Methods

An online survey was developed using a comprehensive multi-criteria decision analysis (MCDA) framework, the EVIdence based Decision-Making (EVIDEM). The EVIDEM core model used in this study encompassed 13 quantitative criteria and four qualitative criteria. Participants were asked to provide weights referring to what matters most important in general for each criterion, performance scores for appraising the interventions on thyroid nodules and their consideration of impact of contextual criteria. Normalized weights and standardized scores were combined to calculate a value contribution across all participants, additionally differences across physicians and patients’ group were explored.

Results

48 patients and 31 physicians were included in the analysis. The value estimate of the interventions on thyroid nodules reached 0.549 for patients’ group and 0.5 was reported by the physicians’ group, compared to 0.543 for all participants. The highest value contributor was ‘Comparative effectiveness’ (0.073 ± 0.020). For the physicians’ group, ‘Comparative safety’ (0.050 ± 0.023) was given with higher value. And for the patients’ group, ‘Type of preventive benefits’ (0.059 ± 0.022) contributed more positively to the value estimation. 51% participants considered ‘Population priorities and access’ having a negative impact on the interventions of nodules.66% participants thought that the ‘system capacity’ had a negative impact.

Conclusion

Our study shows participants’ preferences on each criterion, i.e., physician indicated keeping the interventions safe and effective more important, patients indicated quality of life after receiving interventions more important. Through comparison among participants, differences have been highlighted, which can make better communication between physicians and patients. This study provides a supportive decision-making for healthcare providers when they explored the interventions on thyroid nodules.
Genetic analysis using targeted next-generation sequencing of sporadic Chinese patients with idiopathic dilated cardiomyopathy
Authors: Li Mingmin , Xia Shuang , Xu Lan , Tan Hong , Yang Junqing , Wu Zejia , He Xuyu , Li Liwen
Published: May 2021

Background

Inherited dilated cardiomyopathy (DCM) contributes to approximately 25% of idiopathic DCM cases, and the proportion is even higher in familial DCM patients. Most studies have focused on familial DCM, whereas the genetic profile of sporadic DCM in Chinese patients remains unknown.

Methods

Between June 2018 and September 2019, 24 patients diagnosed with idiopathic DCM without a family history were included in the present study. All patients underwent genetic screening for 80 DCM-related genes using targeted next-generation sequencing.

Results

By in silico analysis, 10 of 99 detected variants were considered pathogenic or likely-pathogenic, including sevenTTNtruncating variants (TTNtv), one in-frame deletion inTNNT2, one missense mutation inRBM20,and one frameshift deletion variant inFLNC. Of these variants, eight are reported for the first time.

Conclusions

Using targeted next-generation sequencing, potential genetic causes of idiopathic DCM were identified. Sarcomere mutations remained the most common genetic cause of inherited DCM in this cohort of sporadic Chinese DCM.