bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intracavitary electrocardiography-guided positioning of central vascular access device can spare unnecessary ionizing radiation exposure in pediatric patients
Authors: Raffaele Alessandro , Segal Aviad , Romano Piero , Vatta Fabrizio , Boghen Stella , Bonetti Federico , Parigi Gian Battista , Avolio Luigi 
Published: May 2020

Background: Most hospital protocols—including those of our own institute—require the use of radiography to validate tip position in every central vascular access device placement. This study evaluated whether unnecessary ionizing radiation exposure could be spared in the pediatric population when intracavitary electrocardiography is used to guide catheter placement. Material and methods: Retrospective study of intracavitary electrocardiography-guided central vascular access device placements in our pediatric surgery department between 2013 and 2018. We evaluated the operating time, success in positioning the catheter, and accuracy of final tip position. We also assayed the effects of catheter type and of catheter access point on operating time, success, accuracy, and complications. We applied the chi-square test for statistical analysis. Results: In total, 622 interventions of central vascular access device placements were evaluated; 340 intracavitary electrocardiography-guided central vascular access device placements were included in the study. The electrocardiography method successfully positioned the tip of the catheter in 316/340 (92.94%) of placements. Where intracavitary electrocardiography placement was successful, radiography confirmed accuracy of tip position in 314/316 (99.41%) of placements. Conclusion: When electrocardiography-guided positioning is uneventful and a valid P-Wave pattern is seen, postprocedure radiograph imaging for verification is unnecessary. Any effort should be made to upgrade hospital policies according to evidences and newest guidelines to spare pediatric patients harmful exposure to radiation by limiting the use of radiography only to selected cases.
Steroidal aromatase inhibitors have a more favorable effect on lipid profiles than nonsteroidal aromatase inhibitors in postmenopausal women with early breast cancer: a prospective cohort study
Authors: Wang Xue , Zhu Anjie , Wang Jiayu , Ma Fei , Liu Jing , Fan Ying , Luo Yang , Zhang Pin , Li Qing , Xu Binghe , Yuan Peng 
Published: May 2020

Background: Aromatase inhibitors (AIs) influence blood lipid profiles. However, relatively few studies have directly compared the treatment effects of steroidal and nonsteroidal AIs. Methods: A prospective single-center cohort study was conducted to investigate the effects of steroidal and nonsteroidal AIs on lipid profiles during the first 24 months of endocrine therapy in hormone receptor-positive postmenopausal patients with early breast cancer. The primary endpoint was the cumulative incidence of lipid events, while the secondary endpoints were changes in lipid profiles and lipid event-free survival. Results: Comparison of the lipid profiles of the two groups showed that triglycerides (TGs) and total cholesterol (TC) levels were significantly higher in the nonsteroidal AI group over 24 months ( p < 0.05), whereas low-density lipoprotein cholesterol (LDL-C) was significantly higher only at 3 months ( p = 0.017) and 6 months ( p = 0.026). High-density lipoprotein cholesterol (HDL-C) was significantly lower in the steroidal group at all time points ( p < 0.05), except at 18 months ( p = 0.085). The cumulative incidence of lipid events in the steroidal and nonsteroidal groups at 24 months was 25.3% and 37.0%, respectively. Multivariate analysis results indicated that TG, LDL-C, and steroidal AIs were independently associated with blood lipid events. Conclusion: This trial showed that a significantly higher cumulative incidence of lipid events occurred in the nonsteroidal AI group than in the steroidal AI group, which indicated that steroidal AIs exerted a protective effect against blood lipid events in postmenopausal women receiving an AI as adjuvant therapy for breast cancer. ClinicalTrials.gov identifier: NCT02765373
Variation in the use of pulmonary vasodilators in children and adolescents with pulmonary hypertension: a study using data from the MarketScan® insurance claims database
Authors: O'Byrne Michael L. , Faerber Jennifer A. , Katcoff Hannah , Frank David B. , Davidson Alex , Giglia Therese M. , Avitabile Catherine M. 
Published: May 2020

Despite progress in pharmacotherapy in pediatric pulmonary hypertension, real‐world patterns of directed pulmonary hypertension therapy have not been studied in the current era. A retrospective observational study of children (≤18 years) with pulmonary hypertension was performed using data from the MarketScan® Commercial and Medicaid claims databases. Associations between etiology of pulmonary hypertension and pharmaceutical regimen were evaluated, as were the associations between subject social and geographic characteristics (insurance‐type, race, and/or census region) and regimen. Annualized costs of single‐ and multi‐class regimens were calculated. In total, 873 subjects were studied, of which 94% received phosphodiesterase‐5 inhibitors, 31% endothelin receptor antagonist, 9% prostacyclin analogs, and 7% calcium channel blockers. Monotherapy was used in 72% of subjects. Phosphodiesterase‐5 inhibitors monotherapy was the most common regimen (93%). Subjects with idiopathic pulmonary hypertension, congenital heart disease, and unclassified pulmonary hypertension receive more than one agent and were more likely to receive both endothelin receptor antagonist and prostacyclin analogs than other forms of pulmonary hypertension. Compared to recipients of public insurance, subjects with commercial insurance were more likely to receive more intense therapy (p = 0.003), which was confirmed in multivariable analysis (OR: 1.4, p = 0.03). Receipt of commercial insurance was also associated with increased annual costs across all subjects (p < 0.001) and for the most common specific regimens. The majority of children with pulmonary hypertension receive phosphodiesterase monotherapy, followed by phosphodiesterase–endothelin receptor antagonist two drug regimens, and finally the addition of prostacyclin analogs for three‐drug therapy. However, even after adjustment for measurable confounders, commercial insurance was associated with higher intensity care and higher costs (even within specific classes of pulmonary vasodilators). The effect of these associations on clinical outcome cannot be discerned from the current data set, but patterns of treatment deserve further attention.
Pulmonary hypertension with adult respiratory distress syndrome: prevalence, clinical impact, and association with central venous pressure
Authors: Li Dong‐Kai , Mao Jia‐Yu , Long Yun , Liu Da‐Wei , Wang Xiao‐Ting 
Published: May 2020

Pulmonary hypertension (PH) occurs in patients with acute respiratory distress syndrome (ARDS); the most severe form comprises acute cor pulmonale (ACP). Here, we investigated the prevalence of PH in patients with ARDS to evaluate its correlation with ACP risk, ARDS severity and central venous pressure (CVP). We conducted a secondary analysis using data from the MIMIC‐III open‐source clinical database. The prevalence of PH associated with new‐onset ARDS during the first 72 h after intensive care unit admission was investigated; moreover, the association between ACP risk score and PH was validated. We also evaluated the association between elevated CVP (mean CVP > 10 mmHg) and PH and other clinical outcomes. Among 2434 patients who met the ARDS Berlin criteria and underwent echocardiography or pulmonary artery catheterization evaluation, a total of 583 (24.0%) patients were diagnosed with moderate or severe PH, of which 418 had low and 165 had high ACP risk. After adjustment for disease/ARDS severity, ACP risk score, and other demographic variables, elevated CVP was independently associated with the occurrence of PH (odds ratio, 2.239 (1.674, 2.993), p < 0.005). Among patients with PH, higher mean CVP was associated with prolonged hospital stay (13.4 vs. 15.2 days, p = 0.041) and duration of ventilation (116.5 vs. 150.5 h, p = 0.023). Incidence of PH was 24.0% in patients with new‐onset ARDS in this retrospective study. Elevated CVP is relevant with higher incidence of PH and worse clinical outcome; these highlighted the importance of hemodynamic monitoring in the management of ARDS.
The association of diabetes and admission blood glucose with 30-day mortality in patients with acute myocardial infarction complicated by cardiogenic shock
Authors: Thoegersen Michael , Josiassen Jakob , Helgestad Ole KL , Berg Ravn Hanne , Schmidt Henrik , Holmvang Lene , Jensen Lisette Okkels , Møller Jacob Eller , Hassager Christian 
Published: May 2020

Background
Cardiogenic shock is the leading cause of death in patients with acute myocardial infarction, with short-term mortality of approximately 50%. Whether diabetes mellitus and high blood glucose levels are associated with mortality in contemporary patients with acute myocardial infarction complicated by cardiogenic shock is inadequately described.

Purpose
To investigate if diabetes mellitus and high admission blood glucose were associated with 30-day mortality in a large, contemporary population with acute myocardial infarction complicated by cardiogenic shock.

Methods
Patients with acute myocardial infarction complicated by cardiogenic shock admitted at two tertiary centres in Denmark from 2010 to 2017 were individually identified through patient charts, resulting in the inclusion of 1716 cardiogenic shock patients. Glucose level at admission to the intensive care unit was available in 1302 patients.

Results
There was no significant difference in 30-day mortality between diabetes mellitus types I and II (63% vs. 62%, NS). Thirty-day mortality was significantly higher in diabetes patients compared to non-diabetes patients (62% vs. 50%, P &lt; 0.001). Increasing admission glucose was associated with increasing 30-day mortality in a dose-dependent manner in diabetes mellitus (4–8 mmol/L, 41%; 8–12 mmol/L, 49%; 12–16 mmol/L, 63%; &gt;16 mmol/L, 67%; P = 0.028) and non-diabetes patients (4–8 mmol/L, 32%; 8–12 mmol/L, 43%; 12–16 mmol/L, 57%; &gt;16 mmol/l; 68%; P &lt; 0.001).

Conclusion
Patients with acute myocardial infarction complicated by cardiogenic shock and concomitant diabetes mellitus type I or II had a significantly higher 30-day mortality in comparison to patients without diabetes mellitus, whereas no difference was found between diabetes mellitus types I and II. High glucose levels on admission to the intensive care unit were associated with increased 30-day mortality in diabetes mellitus and non-diabetes mellitus patients.
Safety and immunogenicity of a seasonal trivalent inactivated split influenza vaccine: a double blind, phase III randomized clinical trial in healthy Serbian adults
Authors: Stevanovic Goran , Obradovic Aleksandar , Ristic Snezana , Petrovic Dragan , Milenkovic Branislava , Mitrovic Danilo , Vignjevic Svetlana Filipovic , Ilic Katarina , Stoiljkovic Vera , Lavadinovic Lidija , Pelemis Mijomir , Petrovic Svetlana , Vidmanic Ana , Popovic Olga , Eremic Natasa , Sparrow Erin , Torelli Guido , Socquet Muriel , Holt Renée , Ilieva-Borisova Yordanka , Tang Yuxiao , Scorza Francesco Berlanda , Flores Jorge , Rathi Niraj 
Published: May 2020

This study was a phase III, multicenter, double-blind, randomized, placebo-controlled trial to evaluate the safety and immunogenicity of a seasonal trivalent split, inactivated influenza vaccine (TIV) in healthy Serbian adults between the ages of 18 and 65 years. This egg-based vaccine was manufactured by the Institute of Virology, Vaccines and Sera, Torlak, Belgrade, Serbia. A total of 480 participants were assigned randomly in a ratio of 2:1 to receive a single intramuscular dose (0.5 ml) of the vaccine (15 µg of hemagglutinin per strain) or placebo (phosphate-buffered saline). Participants were monitored for safety, including solicited and unsolicited adverse events (AEs) and serious adverse events (SAEs). No SAEs related to vaccination were reported. Injection site pain (51.3%), injection site tenderness (40.4%), tiredness (17.0%), and headache (15.1%) were the most commonly reported solicited events in the vaccine group. Incidence of related unsolicited AEs was low (1.3%) among vaccinees. Hemagglutinin inhibition (HAI) titers were measured before and 21 days after vaccination in 151 participants. Overall, HAI seroconversion rates to H1 and H3 were observed in 90.1% and 76.2% of vaccinees, respectively. For B antigen, it was 51.5%, likely due to high pre-vaccination titers. Post-vaccination seroprotection rates were in the range of 78.2–95.0% for the three antigens. Post-vaccination geometric mean titers (GMT) were at least 3.8 times higher than baseline levels for all the three strains among vaccinees. Overall, the study showed that the vaccine was safe and well tolerated, and induced a robust immune response against all three vaccine strains. ClinicalTrials.gov identifier: NCT02935192, October 17, 2016
In vivo optical biopsy of choroidal osteoma: a swept source optical coherence tomography–based tumor characterization
Authors: Azad Shorya Vardhan , Kumar Vinod , Chawla Rohan , Kashyap Bibhuti , Temkar Shreyas , Kumar Atul , Venkatesh Pradeep , Vohra Rajpal , Molla Kabiruddin , Sharma Anu 
Published: May 2020

Objective: To study tumor characteristics of choroidal osteoma by swept source optical coherence tomography. Methods: A retrospective case series done at tertiary referral center in northern India. All patients diagnosed with choroidal osteoma examined on swept source optical coherence tomography were included. Swept source optical coherence tomography images were analyzed for integrity of retinal layers—intraretinal layers, outer retinal layers (photoreceptor), retinal pigment epithelium, and contour abnormalities. Choroidal changes assessed were tumor attributes such as shape, depth of choroidal involvement, tumor mass reflectivity pattern, tumor vascularity, and evolutionary structural abnormalities such as deossification, focal depressions, or choroidal neovascular membrane. Results: A total of 15 eyes of 11 patients were analyzed. Seven of 11 patients were females. Mean age of presentation was approximately 26 years. Tumor was large in nine cases (>7.5 mm). Deossification was seen in 12 eyes. Inner and outer retinal integrity was maintained in 7 and 2 eyes, respectively. Most common internal tumor reflectivity pattern seen was a lamellar appearance (12/15). Increased signal transmission to choroid and focal area of deep excavation was present in 11 and 4 eyes, respectively. Osteoclastic activity was noted in 12 eyes. Choroidal neovascular membrane was seen in 6 eyes. Small lesions showed lamellar pattern of tumor reflectivity with preservation of retinal pigment epithelium and overlying retina. Larger tumors were deossified with 6 irregular tumor contour, disorganization of the outer retina, increased signal transmission to choroid, and areas of osteoclastic activity. Conclusion: Swept source optical coherence tomography was helpful in assessing tumor attributes and predicting the different timelines in tumor evolution.
Paediatric cohort studies on lower respiratory diseases and their reporting quality: systematic review of the year 2018
Authors: Ardura-Garcia Cristina , Mozun Rebeca , Pedersen Eva S.L. , Otth Maria , Mallet Maria Christina , Goutaki Myrofora , Kuehni Claudia E. 
Published: May 2020

The paediatric respiratory research community uses cohort studies extensively. However, the landscape of these studies and their quality of reporting has not been assessed.We performed a systematic review of publications on cohort studies reporting on paediatric lower respiratory problems published in 2018. We searched MEDLINE and Embase and extracted data on study and journal characteristics. We assessed the number of items of the Strengthening the Reporting of Observational studies in Epidemiology (STROBE) checklist that a random sample (100 papers) reported. We analysed factors associated with the STROBE score and with the most poorly reported items, using Poisson and logistic regression.Of the 21 319 records identified, 369 full-text articles met our inclusion criteria. Most papers studied asthma aetiology through birth cohorts and were based in Europe or North America. The reporting quality was insufficient: 15% reported the 22 STROBE items; median (interquartile range) score 18 (16–21). The most poorly reported items were sources of bias, sample size, statistical methods, descriptive results and generalisability. None of the study or journal factors were associated with the STROBE score.We need a joint effort of editors, reviewers and authors to improve the reporting quality of paediatric cohort studies on respiratory problems.
A helper-dependent adenoviral vector rescues CFTR to wild-type functional levels in cystic fibrosis epithelial cells harbouring class I mutations
Authors: Cao Huibi , Ouyang Hong , Laselva Onofrio , Bartlett Claire , Zhou Zhichang Peter , Duan Cathleen , Gunawardena Tarini , Avolio Julie , Bear Christine E. , Gonska Tanja , Hu Jim , Moraes Theo J. 
Published: May 2020

Cystic fibrosis (CF) is a genetic disorder affecting multiple organs, including the pancreas, hepatobiliary system and reproductive organs; however, lung disease is responsible for the majority of morbidity and mortality. Management of CF involves CF transmembrane conductance regulator (CFTR) modulator agents including corrector drugs to augment cellular trafficking of mutant CFTR as well as potentiators that open defective CFTR channels. These therapies are poised to help most individuals with CF, with the notable exception of individuals with class I mutations where full-length CFTR protein is not produced. For these mutations, gene replacement has been suggested as a potential solution.In this work, we used a helper-dependent adenoviral vector (HD-CFTR) to express CFTR in nasal epithelial cell cultures derived from CF subjects with class I CFTR mutations.CFTR function was significantly restored in CF cells by HD-CFTR and reached healthy control functional levels as detected by Ussing chamber and membrane potential (FLIPR) assay. A dose–response relationship was observed between the amount of vector used and subsequent functional outcomes; small amounts of HD-CFTR were sufficient to correct CFTR function. At higher doses, HD-CFTR did not increase CFTR function in healthy control cells above baseline values. This latter observation allowed us to use this vector to benchmarkin vitroefficacy testing of CFTR-modulator drugs.In summary, we demonstrate the potential for HD-CFTR to informin vitrotesting and to restore CFTR function to healthy control levels in airway cells with class I or CFTR nonsense mutations.
Persistence of chronic cough in a community-based population
Authors: Lätti Anne M. , Pekkanen Juha , Koskela Heikki O. 
Published: May 2020

Chronic cough causes significant impairment in the quality of life and is often immune to treatment. Previous studies about its persistence have focused on patients managed in special cough clinics. Little is known about the persistence of chronic cough in unselected populations. In this prospective follow-up study, we investigated factors that predict the persistence of cough at 12-month follow-up in a community-based study of subjects with chronic cough.The first e-mail survey in 2017 included a questionnaire about current cough and its risk factors. The 264 subjects who reported chronic cough were sent a follow-up questionnaire 12 months later.The response rate was 77.7% (205 subjects), of whom 165 subjects (80.5%) still had cough in 2018. In multivariate analysis, the following baseline factors predicted the persistence of cough at 12 months; gastro-oesophageal reflux disease (adjusted OR (aOR) 5.02 (95% CI 1.10–22.83)), presence of a chemical trigger (aOR 2.88 (95% CI (1.20–7.00)), duration of cough more than 1 year (aOR 2.80 (95% CI 1.27–6.22)), frequent somatic symptoms (aOR 1.31 (95% CI 1.07–1.59)), and low number of family members (aOR 0.71 (95% CI 0.52–0.98)).In conclusion, most patients with chronic cough still suffer from cough 1 year later. The presence of gastro-oesophageal reflux disease is the main predictor for the persistence of cough.
Poverty and health-related quality of life: a cross-sectional study in rural China
Authors: Li Zhong , Zhang Liang 
Published: May 2020

Abstract
Background
The association between poverty and health has been widely assessed. However, whether the association between poverty and health-related quality of life (HRQOL) holds among different groups is unknown. This study aimed to 1) assess the association between poverty and HRQOL among rural residents in China and 2) examine whether the association holds among different populations, thereby supporting policy-making and implementation.

Methods
A multistage, stratified, random household survey was conducted with self-administered questionnaires. Matched samples were generated by the censored exact matching method to reduce selection bias between the poverty and comparison groups. We applied Tobit and ordinal logit regression models to evaluate the association between poverty and HRQOL measured by the EQ-5D-3 L among different groups.

Results
The health utility score of the poverty group was 6.1% lower than that of comparison group (95% CI = − 0.085, − 0.037), with anxiety/depression being most common (95% CI = 1.220, 1.791). The association between poverty and HRQOL was significantly stronger among residents from central China, males, people who were middle-aged, elderly, highly educated, married, or widowed, those living far from healthcare facilities, and those without chronic disease. Male and highly educated subjects reported worse mobility, self-care, usual activities, pain/discomfort and anxiety/depression dimensions than the other respondents. Middle-aged (95% CI = 1.692, 2.851) and married respondents (95% CI = 1.692, 2.509) and respondents with chronic diseases (95% CI = 1.770, 2.849) were most affected in the anxiety/depression.

Conclusions
The HRQOL of individuals living in poverty is lower than that of the general population, and the mental health dimension is most affected by poverty among respondents who are middle-aged or married and respondents with chronic diseases. The identification of populations that are more affected by poverty is critical to improve their HRQOL. Various associations have indicated the need for integrated policies and specific decision-making.