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A review of the mesotheliogenic potency of cleavage fragments found in talc. Toxicol Ind Health 2024; 40:398-424. [PMID: 38619498 DOI: 10.1177/07482337241246924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
It has long been recognized that amphibole minerals, such as cleavage fragments of tremolite and anthophyllite, may exist in some talc deposits. We reviewed the current state of the science regarding the factors influencing mesotheliogenic potency of cleavage fragments, with emphasis on those that may co-occur in talc deposits, including dimensional and structural characteristics, animal toxicology, and the most well-studied cohort exposed to talc-associated cleavage fragments. Based on our review, multiple lines of scientific evidence demonstrate that inhaled cleavage fragments associated with talc do not pose a mesothelioma hazard.
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Not Dandy Walker variant: a review of prominent retrocerebellar CSF space in children. Clin Radiol 2024; 79:330-337. [PMID: 38429135 DOI: 10.1016/j.crad.2024.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/10/2024] [Accepted: 01/14/2024] [Indexed: 03/03/2024]
Abstract
The prominent retrocerebellar cerebrospinal fluid (CSF) space can be frequently encountered on paediatric neuroimaging studies. In cases involving abnormal vermian development where imaging does not align with the established criteria of Dandy-Walker malformation (DWM), the term "Dandy-Walker variant or continuum" has been historically employed to describe the aberrant posterior fossa development. Instead, the emphasis is on a more elaborate description of the findings in the posterior fossa. Moreover, combining the findings in the supratentorial brain can occasionally predict certain neurogenetic disorders that mimic Dandy-Walker phenotype. The present review demonstrates and differentiates the imaging features of various entities that result in an enlarged retrocerebellar CSF space, such as inferior vermian hypoplasia (IVH) and several neurogenetic conditions.
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Achievement of Target Gain Larger than Unity in an Inertial Fusion Experiment. PHYSICAL REVIEW LETTERS 2024; 132:065102. [PMID: 38394591 DOI: 10.1103/physrevlett.132.065102] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/03/2024] [Indexed: 02/25/2024]
Abstract
On December 5, 2022, an indirect drive fusion implosion on the National Ignition Facility (NIF) achieved a target gain G_{target} of 1.5. This is the first laboratory demonstration of exceeding "scientific breakeven" (or G_{target}>1) where 2.05 MJ of 351 nm laser light produced 3.1 MJ of total fusion yield, a result which significantly exceeds the Lawson criterion for fusion ignition as reported in a previous NIF implosion [H. Abu-Shawareb et al. (Indirect Drive ICF Collaboration), Phys. Rev. Lett. 129, 075001 (2022)PRLTAO0031-900710.1103/PhysRevLett.129.075001]. This achievement is the culmination of more than five decades of research and gives proof that laboratory fusion, based on fundamental physics principles, is possible. This Letter reports on the target, laser, design, and experimental advancements that led to this result.
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Validation of a shortened MR imaging protocol for pediatric spinal pathology. Childs Nerv Syst 2023; 39:3163-3168. [PMID: 36997725 DOI: 10.1007/s00381-023-05940-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
OBJECTIVE Conventional pediatric spine MRI protocols have multiple sequences resulting in long acquisition times. Sedation is consequently required. This study evaluates the diagnostic capability of a limited MRI spine protocol for selected common pediatric indications. METHODS Spine MRIs at CHEO between 2017 and 2020 were reviewed across pediatric patients younger than four years old. Two blinded neuroradiologists reviewed limited scan sequences, and results were independently compared to previously reported findings from the complete imaging series. T2 sagittal sequences from the craniocervical junction to sacrum and T1 axial sequence of the lumbar spine constitute the short protocol, with the outcomes of interest being cerebellar ectopia, syrinx, level of conus, filum < 2 mm, fatty filum, and spinal dysraphism. RESULTS A total of 105 studies were evaluated in 54 male and 51 female patients (mean age 19.2 months). The average combined scan time of the limited sequences was 15 min compared to 35 min for conventional protocols (delta = 20 min). The average percent agreement between full and limited sequences was > 95% in all but identifying a filum < 2 mm, where the percent agreement was 87%. Using limited MR sequences had high sensitivity (> 0.91) and specificity (> 0.99) for the detection of cerebellar ectopia, syrinx, fatty filum, and spinal dysraphism. CONCLUSION This study demonstrates that selected spinal imaging sequences allow for consistent and accurate diagnosis of specific clinical conditions. A limited spine imaging protocol has potential as a screening test to reduce the need for full-sequence MRI scans. Further work is needed to determine utility of selected imaging for other clinical indications.
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Measurements of neutrino oscillation parameters from the T2K experiment using 3.6×1021 protons on target. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2023; 83:782. [PMID: 37680254 PMCID: PMC10480298 DOI: 10.1140/epjc/s10052-023-11819-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/10/2023] [Indexed: 09/09/2023]
Abstract
The T2K experiment presents new measurements of neutrino oscillation parameters using 19.7 ( 16.3 ) × 10 20 protons on target (POT) in (anti-)neutrino mode at the far detector (FD). Compared to the previous analysis, an additional 4.7 × 10 20 POT neutrino data was collected at the FD. Significant improvements were made to the analysis methodology, with the near-detector analysis introducing new selections and using more than double the data. Additionally, this is the first T2K oscillation analysis to use NA61/SHINE data on a replica of the T2K target to tune the neutrino flux model, and the neutrino interaction model was improved to include new nuclear effects and calculations. Frequentist and Bayesian analyses are presented, including results on sin 2 θ 13 and the impact of priors on the δ CP measurement. Both analyses prefer the normal mass ordering and upper octant of sin 2 θ 23 with a nearly maximally CP-violating phase. Assuming the normal ordering and using the constraint on sin 2 θ 13 from reactors, sin 2 θ 23 = 0 . 561 - 0.032 + 0.021 using Feldman-Cousins corrected intervals, and Δ m 32 2 = 2 . 494 - 0.058 + 0.041 × 10 - 3 eV 2 using constant Δ χ 2 intervals. The CP-violating phase is constrained to δ CP = - 1 . 97 - 0.70 + 0.97 using Feldman-Cousins corrected intervals, and δ CP = 0 , π is excluded at more than 90% confidence level. A Jarlskog invariant of zero is excluded at more than 2 σ credible level using a flat prior in δ CP , and just below 2 σ using a flat prior in sin δ CP . When the external constraint on sin 2 θ 13 is removed, sin 2 θ 13 = 28 . 0 - 6.5 + 2.8 × 10 - 3 , in agreement with measurements from reactor experiments. These results are consistent with previous T2K analyses.
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What to Do with a Squeaky Wheel? Ventricular Assist Device Use in Children with Mechanical Valves in the Action Database. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Impact of 10-Day Fulbright Specialist Program and Project Pink Blue Education Sessions on Medical Oncology Knowledge Among Physicians Who Treat Cancer in Nigeria. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2023; 38:378-382. [PMID: 35838882 DOI: 10.1007/s13187-021-02130-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/24/2021] [Indexed: 06/15/2023]
Abstract
Despite an estimated population of over 201 million and over 115,950 yearly diagnosed new cases of cancer, Nigeria does not have dedicated medical oncologists. Most oncology care is delivered through surgical and clinical oncologists, who are trained in both radiation and medical oncology and they number fewer than 50 in the country. With a limited number of oncology professionals, cancer patients in Nigeria experience poor health outcomes, with an estimated cancer mortality rate of 75,000 deaths per year. Participants from 15 Nigerian states were selected to attend the medical oncology training. Through the support of Fulbright Specialist Program and Project PINK BLUE, two of the authors delivered 10 days of lectures based on ASCO, ESMO, and NCCN guidelines. Mean scores of both the pre- and post-course tests as well as a 1-year follow-up test were compared using GraphPad Prism 7.0a by paired t-tests. Forty-four clinical oncologists were selected for participation. Twenty-five (57%) completed the pre- and post-course tests. Of the 25 that completed both tests, percentage of correct answers increased from 45 to 59% (2-sided p-value < 0.0001). Improvements were seen in attending doctors 45 to 59% (p = 0.0046) and resident doctors 45 to 59% (0.0007). Eleven doctors responded to the 1-year follow-up test. Although not statistically significant, a numerical pattern for the benefits was maintained 1 year after the program (45% pre-course versus 52% post-course correct answers, Fisher's exact, p = 0.4185). In the short term, the training improved medical oncology knowledge in Nigeria, regardless of the participant's carrier stage. Long-term benefits were not sustained in a small sample of participants, and continuing education strategies are necessary. Similar models may be employed across Africa.
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Anaesthesia for vascular emergencies - a state of the art review. Anaesthesia 2023; 78:236-246. [PMID: 36308289 DOI: 10.1111/anae.15899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2022] [Indexed: 01/11/2023]
Abstract
In this state-of-the-art review, we discuss the presenting symptoms and management strategies for vascular emergencies. Although vascular emergencies are best treated at a vascular surgical centre, patients may present to any emergency department and may require both immediate management and safe transport to a vascular centre. We describe the surgical and anaesthetic considerations for management of aortic dissection, aortic rupture, carotid endarterectomy, acute limb ischaemia and mesenteric ischaemia. Important issues to consider in aortic dissection are extent of the dissection and surgical need for bypasses in addition to endovascular repair. From an anaesthetist's perspective, aortic dissection requires infrastructure for massive transfusion, smooth management should an endovascular procedure require conversion to an open procedure, haemodynamic manipulation during stent deployment and prevention of spinal cord ischaemia. Principles in management of aortic rupture, whether open or endovascular treatment is chosen, include immediate transfer to a vascular care centre; minimising haemodynamic changes to reduce aortic shear stress; permissive hypotension in the pre-operative period; and initiation of massive transfusion protocol. Carotid endarterectomy for carotid stenosis is managed with general or regional techniques, and anaesthetists must be prepared to manage haemodynamic, neurological and airway issues peri-operatively. Acute limb ischaemia is a result of embolism, thrombosis, dissection or trauma, and may be treated with open repair or embolectomy, under either general or local anaesthesia. Due to hypercoagulability, there may be higher numbers of acutely ischaemic limbs among patients with COVID-19, which is important to consider in the current pandemic. Mesenteric ischaemia is a rare vascular emergency, but it is challenging to diagnose and associated with high morbidity and mortality. Several peri-operative issues are common to all vascular emergencies: acute renal injury; management of transfusion; need for heparinisation and reversal; and challenging postoperative care. Finally, the important development of endovascular techniques for repair in many vascular emergencies has improved care, and the availability of transoesophageal echocardiography has improved monitoring as well as aids in surgical placement of endovascular grafts and for post-procedural evaluation.
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Obstructive Sleep Apnea Severity is Associated with Abnormal Myocardial 82Rubidium PET Blood Flow Reserve. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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A Pt(IV)-conjugated brain penetrant macrocyclic peptide shows pre-clinical efficacy in glioblastoma. J Control Release 2022; 352:623-636. [PMID: 36349615 PMCID: PMC9881056 DOI: 10.1016/j.jconrel.2022.10.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/29/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Glioblastoma (GBM) is the most aggressive primary malignant brain tumor, with a median survival of approximately 15 months. Treatment is limited by the blood-brain barrier (BBB) which restricts the passage of most drugs to the brain. We previously reported the design and synthesis of a BBB-penetrant macrocyclic cell-penetrating peptide conjugate (M13) covalently linked at the axial position of a Pt(IV) cisplatin prodrug. Here we show the Pt(IV)-M13 conjugate releases active cisplatin upon intracellular reduction and effects potent in vitro GBM cell killing. Pt(IV)-M13 significantly increased platinum uptake in an in vitro BBB spheroid model and intravenous administration of Pt(IV)-M13 in GBM tumor-bearing mice led to higher platinum levels in brain tissue and intratumorally compared with cisplatin. Pt(IV)-M13 administration was tolerated in naïve nude mice at higher dosage regimes than cisplatin and significantly extended survival above controls in a murine GBM xenograft model (median survival 33 days for Pt(IV)-M13 vs 24 days for Pt(IV) prodrug, 22.5 days for cisplatin and 22 days for control). Increased numbers of γH2AX nuclear foci, biomarkers of DNA damage, were observed in tumors of Pt(IV)-M13-treated mice, consistent with elevated platinum levels. The present work provides the first demonstration that systemic injection of a Pt(IV) complex conjugated to a brain-penetrant macrocyclic peptide can lead to increased platinum levels in the brain and extend survival in mouse GBM models, supporting further development of this approach and the utility of brain-penetrating macrocyclic peptide conjugates for delivering non-BBB penetrant drugs to the central nervous system.
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Uterine Artery Occlusion Techniques: Tips and Tricks... and Some Pitfalls. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Antitumor activity of Antibody-Drug Conjugates targeting cancer-expressed EGFR in Preclinical Models. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01028-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Changing Parental Knowledge and Treatment Acceptance for ADHD: A Pilot Study. Clin Pediatr (Phila) 2022; 62:301-308. [PMID: 36171719 PMCID: PMC10108330 DOI: 10.1177/00099228221124676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This pilot study assessed the feasibility and potential effectiveness of a single-session workshop in modifying parental beliefs/knowledge about attention-deficit/hyperactivity disorder (ADHD) in children and impact on treatment acceptance/utilization. Concerns raised by school professionals about lack of treatment follow-through after ADHD diagnosis and parental misinformation about medication usage catalyzed this project. A single-group pre-post quasi-experimental design was used. Sixty-eight parents completed ADHD knowledge/belief scales and stress inventories, and pre-ADHD and post-ADHD information workshop. Follow-up calls were made after the workshop to assess treatment utilization. Parents/caregivers experienced significant knowledge and belief changes regarding medication efficacy, willingness to accept physician treatment recommendations, and rejection of non-empirically based treatments. Follow-up data showed that 41% of contacted participants met with physicians to discuss medication utilization and behavioral treatments. Brief, one-session psycho-educational workshops were feasible and impacted parental beliefs and behaviors regarding scientifically supported interventions for ADHD.
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Evaluation of volatile organic compound (VOC) emissions from memory foam mattresses and potential implications for consumer health risk. CHEMOSPHERE 2022; 303:134945. [PMID: 35588879 DOI: 10.1016/j.chemosphere.2022.134945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/02/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Chemical emissions from two new memory foam mattresses were evaluated in a simulated consumer use environment over the course of 32 days. Passive 12- and 24-h samples (n = 62) were collected for various VOCs. Airborne concentrations of chemicals associated with the mattresses (2-propanol, acetone, chloromethane, toluene, and ΣVOC) peaked during the first day after installation and progressively decayed over the course of the following 31 days. Emission rates were derived using a two-phase, double exponential source decay model paired with a one-compartment generalized indoor air quality model; short- and long-term emission half-lives for individual chemicals were on the order of hours (approximately 4 or 12 h) and days (approximately 24 days), respectively. Model-estimated average ΣVOC concentrations for the 32-day period of the study were approximately 20 and 33 μg/m3 for Mattress 1 and 2, respectively, while the modeled one-year average concentrations were 2.7 and 4.2 μg/m3, respectively. First-year trends for both mattresses were qualitatively similar, with the sum of 2-propanol, acetone, chloromethane, and toluene contributing to approximately 81% and 95% of the first-year ΣVOC concentration of Mattress 1 and 2, respectively. The airborne concentrations of individual chemicals and ΣVOC measured and modeled in this study were well below available health-based benchmarks for individual chemicals and within available indoor air quality recommendations for ΣVOC, suggesting that it is unlikely that the use of the models of mattresses evaluated in this study would pose a health risk to consumers.
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EP05.01-021 Radiation Dose to Cardiac Substructures and the Incidence of Cardiac Events in Patients with Stage III NSCLC Receiving CCRT. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Lawson Criterion for Ignition Exceeded in an Inertial Fusion Experiment. PHYSICAL REVIEW LETTERS 2022; 129:075001. [PMID: 36018710 DOI: 10.1103/physrevlett.129.075001] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
For more than half a century, researchers around the world have been engaged in attempts to achieve fusion ignition as a proof of principle of various fusion concepts. Following the Lawson criterion, an ignited plasma is one where the fusion heating power is high enough to overcome all the physical processes that cool the fusion plasma, creating a positive thermodynamic feedback loop with rapidly increasing temperature. In inertially confined fusion, ignition is a state where the fusion plasma can begin "burn propagation" into surrounding cold fuel, enabling the possibility of high energy gain. While "scientific breakeven" (i.e., unity target gain) has not yet been achieved (here target gain is 0.72, 1.37 MJ of fusion for 1.92 MJ of laser energy), this Letter reports the first controlled fusion experiment, using laser indirect drive, on the National Ignition Facility to produce capsule gain (here 5.8) and reach ignition by nine different formulations of the Lawson criterion.
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Abstract
For the first time in a decade, both the number of candidates added to the waiting list and the number of lung transplants performed decreased from the year prior; the number of lung donors also declined. This slowing of transplant activities in 2020 was associated with a modest increase in waitlist mortality. The year 2020 was notable for the global outbreak of the COVID-19 pandemic, which undoubtedly influenced all trends noted in lung transplantation. Time to transplant continued to decrease, with a median time to transplant of 1.4 months across all waitlist candidates. Posttransplant survival remained stable, with 89.4% of transplant recipients surviving to 1 year, 74.8% to 3 years, and 61.2% to 5 years.
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Immune responses in the injured olfactory and gustatory systems: a role in olfactory receptor neuron and taste bud regeneration? Chem Senses 2022; 47:bjac024. [PMID: 36152297 PMCID: PMC9508897 DOI: 10.1093/chemse/bjac024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Sensory cells that specialize in transducing olfactory and gustatory stimuli are renewed throughout life and can regenerate after injury unlike their counterparts in the mammalian retina and auditory epithelium. This uncommon capacity for regeneration offers an opportunity to understand mechanisms that promote the recovery of sensory function after taste and smell loss. Immune responses appear to influence degeneration and later regeneration of olfactory sensory neurons and taste receptor cells. Here we review surgical, chemical, and inflammatory injury models and evidence that immune responses promote or deter chemosensory cell regeneration. Macrophage and neutrophil responses to chemosensory receptor injury have been the most widely studied without consensus on their net effects on regeneration. We discuss possible technical and biological reasons for the discrepancy, such as the difference between peripheral and central structures, and suggest directions for progress in understanding immune regulation of chemosensory regeneration. Our mechanistic understanding of immune-chemosensory cell interactions must be expanded before therapies can be developed for recovering the sensation of taste and smell after head injury from traumatic nerve damage and infection. Chemosensory loss leads to decreased quality of life, depression, nutritional challenges, and exposure to environmental dangers highlighting the need for further studies in this area.
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68(GA)DOTATATE PET-Based Radiation Volumes Demonstrate Increased Precision Compared to MRI Based Volumes for Meningioma Patients. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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OC-0299 Is pelvic radiation the right approach after surgery for FIGO IB grade 3 or type II uterine cancers? Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06846-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Pre-existing influenza-specific nasal IgA or nasal viral infection does not affect live attenuated influenza vaccine immunogenicity in children. Clin Exp Immunol 2021; 204:125-133. [PMID: 33314126 PMCID: PMC7944357 DOI: 10.1111/cei.13564] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/17/2022] Open
Abstract
The United Kingdom has a national immunization programme which includes annual influenza vaccination in school-aged children, using live attenuated influenza vaccine (LAIV). LAIV is given annually, and it is unclear whether repeat administration can affect immunogenicity. Because LAIV is delivered intranasally, pre-existing local antibody might be important. In this study, we analysed banked samples from a study performed during the 2017/18 influenza season to investigate the role of pre-existing influenza-specific nasal immunoglobulin (Ig)A in children aged 6-14 years. Nasopharyngeal swabs were collected prior to LAIV immunization to measure pre-existing IgA levels and test for concurrent upper respiratory tract viral infections (URTI). Oral fluid samples were taken at baseline and 21-28 days after LAIV to measure IgG as a surrogate of immunogenicity. Antibody levels at baseline were compared with a pre-existing data set of LAIV shedding from the same individuals, measured by reverse transcription-polymerase chain reaction. There was detectable nasal IgA specific to all four strains in the vaccine at baseline. However, baseline nasal IgA did not correlate with the fold change in IgG response to the vaccine. Baseline nasal IgA also did not have an impact upon whether vaccine virus RNA was detectable after immunization. There was no difference in fold change of antibody between individuals with and without an URTI at the time of immunization. Overall, we observed no effect of pre-existing influenza-specific nasal antibody levels on immunogenicity, supporting annual immunization with LAIV in children.
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MESH Headings
- Administration, Intranasal
- Adolescent
- Antibodies, Viral/immunology
- Child
- Female
- Humans
- Immunogenicity, Vaccine/immunology
- Immunoglobulin A/immunology
- Immunoglobulin G/immunology
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H3N2 Subtype/immunology
- Influenza Vaccines/administration & dosage
- Influenza Vaccines/immunology
- Influenza, Human/immunology
- Influenza, Human/prevention & control
- Influenza, Human/virology
- Male
- Nasal Cavity/immunology
- Nasal Cavity/virology
- Vaccination/methods
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/immunology
- Virus Shedding/immunology
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120 Improving Delirium Recognition and Management Through In-Situ Simulation. Age Ageing 2021. [DOI: 10.1093/ageing/afab030.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Delirium is a common condition that is often associated with increased morbidity and mortality, longer hospital admission, and discharge to a residential or nursing home. By improving our ability to recognise and manage these patients we can intervene early to help reduce the likelihood of these outcomes.
Method
We organised several in-situ simulation scenarios with junior staff working on the Elderly Care Unit. The research team designed a scenario to re-create a typical delirious patient on the ward. Participants had to recognise the patient was delirious and instigate a management plan. Participants completed a pre and post-intervention questionnaire to ascertain whether they felt the simulation had improved their confidence. Additionally we performed an audit to investigate whether our intervention led to an improvement in the recognition and management of delirium in patients on the ward.
Results
The questionnaires showed an increase in participants’ confidence and knowledge when managing a delirious patient on the ward. From reviewing patient notes pre-intervention we identified that 24 patients were delirious during admission,14 of which were accurately diagnosed with delirium. The remaining 10 patients were diagnosed with “Acute Confusion”. On reviewing these 10 patients’ notes, they were all likely to have a diagnosis of delirium. Post-intervention there were 14 patients identified as delirious during their admission. All these patients were correctly documented as having delirium with no inaccurate use of terminology. The data also showed increasing use of tools such as AMTS and 4AT to diagnose delirium.
Conclusions
From the data gathered, we can see participants are better at recognising and diagnosing delirium. However, our sample sizes are too small to test statistical significance between data points. To improve the project we would include a larger sample size to determine whether the simulation produces a statistically significant improvement in confidence levels.
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Abstract
The number of lung transplants performed continues to increase annually and reached an all-time high in 2019, with decreasing waitlist mortality. These trends are attributable to an increasing number of candidates listed for transplant each year and a continuing increase in the number of donors. Despite these favorable trends, 6.4% of lungs recovered for transplant were not transplanted in 2019, and strategies to optimize use of these available organs may reduce the number of waitlist even further. Time to transplant continued to decrease, as over 50% of candidates waited 3 months or less in 2019, yet regional heterogeneity remained despite policy changes intended to improve allocation equity. Small gains continued in posttransplant survival, with 1-year survival at 88.8%; 3 year, 74.4%; 5 year, 59.2%, and 10 year, 33.1 %.
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Improving Resident Self-Efficacy in Tracheostomy Management Using a Novel Curriculum. MEDEDPORTAL : THE JOURNAL OF TEACHING AND LEARNING RESOURCES 2020; 16:11010. [PMID: 33204834 PMCID: PMC7666842 DOI: 10.15766/mep_2374-8265.11010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Patients receiving pediatric tracheostomy have significant risk for mortality due to compromised airway. Timely management of airway emergencies in children with tracheostomies is an important clinical skill for pediatricians. We developed this curriculum to improve residents' self-efficacy with tracheostomy management. METHODS We collected baseline data on 67 residents from two hospitals while creating a blended curriculum with video-based instruction on routine tracheostomy change and team management of tracheostomy emergency. Forty residents enrolled in the curriculum. During an ICU rotation, they received face-to-face instruction on routine tracheostomy change in small groups, followed by assessment of managing a tracheostomy emergency during a simulation. A video completed prior to the simulation took 9 minutes, the routine tracheostomy change didactic session took 15 minutes, and the simulation instruction was completed in 10-15 minutes. We collected feedback on the effectiveness of the curriculum from the participants. RESULTS All 107 residents from the baseline and intervention groups completed the self-efficacy survey. The intervention group had significantly higher changes in scores across all self-efficacy domains than the baseline group. On the curriculum feedback survey, residents rated the curriculum very highly, between 4.4 and 4.8 on a 5-point Likert scale. DISCUSSION Our blended curriculum increased learners' self-efficacy and promoted learner competence in tracheostomy management. Residents scored more than 80% across all aspects of simulation assessment and reported higher self-efficacy scores following our curricular intervention.
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Lipid levels, atrial fibrillation and the impact of age: Results from the LIPIDOGRAM2015 study. Atherosclerosis 2020; 312:16-22. [DOI: 10.1016/j.atherosclerosis.2020.08.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/04/2020] [Accepted: 08/13/2020] [Indexed: 12/22/2022]
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A critical realist evaluation of an integrated care project for vulnerable families in Sydney, Australia. BMC Health Serv Res 2020; 20:995. [PMID: 33129332 PMCID: PMC7603742 DOI: 10.1186/s12913-020-05818-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 10/12/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Healthy Homes and Neighbourhoods (HHAN) Integrated Care Initiative was established to improve the care of families with complex health and social needs who reside in Sydney Local Health District. HHAN seeks to provide long-term multi-disciplinary care coordination as well as enhance capacity building and promote integrated care. The critical realist study reported here is part of the longitudinal development and evaluation of complex integrated health and social care interventions in Sydney, Australia. METHODS We describe the qualitative component of a critical realist pilot case study aimed at exploring, explaining and refining emerging HHAN programme theories in relation to care coordination. Qualitative interviews were undertaken with HHAN clients (n = 12), staff and other stakeholders (n = 21). Interviews and coding used a context (C), mechanism (M) and outcome (O) framework. Inductive, deductive, retroductive and abductive modes of reasoning were used with the CMO heuristic tool to inform the developing programme theory. RESULTS The mechanisms underpinning effective engagement of clients by care coordinators included: building trust, leveraging other family, social and organisational relationships, meeting clients on their own terms, demonstrating staff effectiveness as quickly as possible, and client empowerment. Mechanisms for enhancing care integration included knowledge transfer activities and shared learning among collaborators, structural and cultural changes, enhancing mutual respect, co-location of multidisciplinary and/or interagency staff and cultivating faith in positive change among staff. CONCLUSIONS Use of a critical realism case study approach served to elucidate the varied influences of contexts and mechanisms on programme outcomes, to highlight what works for whom and in what context. Findings supported the initial programme theory that engagement and trust building with clients, alongside enhanced collaboration and integration of services, improved outcomes for vulnerable families with complex needs. Further research is needed to explore the cost-effectiveness of integrated care initiatives, in view of the long term nature of service provision and the risk of staff burnout.
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Prognostic Accuracy of Fetal MRI in Predicting Postnatal Neurodevelopmental Outcome. AJNR Am J Neuroradiol 2020; 41:2146-2154. [PMID: 32943421 DOI: 10.3174/ajnr.a6770] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/06/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE The superior diagnostic accuracy of fetal MR imaging in detecting fetal brain abnormalities has been previously demonstrated; however, the ability of fetal MR imaging to prognosticate postnatal outcome is not well-studied. We performed a retrospective analysis to determine the prognostic accuracy of fetal MR imaging in predicting postnatal neurodevelopmental outcome. MATERIALS AND METHODS We identified all fetal MR imaging performed at the Children's Hospital of Eastern Ontario during a 10-year period and assessed agreement between prenatal prognosis and postnatal outcome. Prenatal prognosis was determined by a pediatric neurologist who reviewed the fetal MR imaging report and categorized each pregnancy as having a favorable, indeterminate, or poor prognosis. Assessment of postnatal neurodevelopmental outcome was made solely on the basis of the child's Gross Motor Function Classification System score and whether the child developed epilepsy. Postnatal outcome was categorized as favorable, intermediate, or poor. We also assessed the diagnostic accuracy of fetal MR imaging by comparing prenatal and postnatal imaging diagnoses. RESULTS We reviewed 145 fetal MR images: 114 were included in the assessment of diagnostic accuracy, and 104 were included in the assessment of prognostic accuracy. There was 93.0% agreement between prenatal and postnatal imaging diagnoses. Prognosis was favorable in 44.2%, indeterminate in 50.0%, and poor in 5.8% of pregnancies. There was 93.5% agreement between a favorable prenatal prognosis and a favorable postnatal outcome. CONCLUSIONS A favorable prenatal prognosis is highly predictive of a favorable postnatal outcome. Further studies are required to better understand the role of fetal MR imaging in prognosticating postnatal development, particularly in pregnancies with indeterminate and poor prognoses.
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Influenza vaccine effectiveness studies in Europe: SWOT analysis of DRIVE collaborating sites. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
DRIVE is a European public-private partnership that aims at creating a network that works on high quality, brand-specific effectiveness estimates for all influenza vaccines used in the EU each season. The SWOT analysis aims at assessing the quality and feasibility of DRIVE operational model after its implementation, i.e. the operations of the study site network as applied in DRIVE.
Methods
The SWOT analysis was conducted through two meetings held among 2 of 14 partners participating in the DRIVE studies in the first season, with clinicians, nurses, data managers and lab technicians from the sites in the network. We collected data on two identified axes (1.organizational and 2.logistical, practical, and laboratory aspects), containing more than one SWOT objective. For each item classified under Strength (S), Weakness (W), Opportunity (O) or Threat (T), experts assigned a 1-5 score, meant to reflect the impact of each listed item on reaching the objectives.
Results
The most common topics, reported by both Italian and Finnish sites collaborators, were the opportunities related to the training and development of the network; funding concerns; opportunities and challenges in training the personnel; management issues due to the project practical organization (e.g. for lack of dedicated personnel, including administrative and for data entry). The scores attributed to the single items appeared skewed to the top, showing how the researchers perceived the majority of the topics as relevant for their day-to-day work.
Conclusions
The SWOT exercise was welcomed as a useful means to compare issues and practices among local study sites, but also as a chance for exchange with both peers and project lead. The results highlight the great value of communication and discussion between study groups, albeit the geographical distance. Such exercise should be included as a routine opportunity for discussion aiming at improving both collaboration and governance model in large projects.
Key messages
One of the main challenges of large public-private consortiums is building a shared governance model; opportunities for collective sharing and collaboration should be promoted in this setting. This SWOT analysis was a useful exercise that should inform the prosecution of the programming of DRIVE operational model, allowing a comparison of issues and practices among local study sites.
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The risk of Kawasaki disease after pneumococcal conjugate & meningococcal B vaccine in England: A self-controlled case-series analysis. Vaccine 2020; 38:4935-4939. [PMID: 32536544 DOI: 10.1016/j.vaccine.2020.05.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 11/28/2022]
Abstract
Kawasaki disease (KD) is an uncommon condition occasionally reported after childhood vaccination. Admissions with a KD-compatible diagnosis identified from a national database in England were linked to immunisation records to investigate the risk after pneumococcal conjugate (PCV) or meningococcal B (MenB) vaccines. Both are given at 2/4/12 months of age but were introduced sequentially, allowing their effects to be separately assessed. A total of 553 linked admissions in 512 individuals were validated as KD. The relative incidence (RI) within 28 days of PCV doses 1 or 2 measured by the self-controlled case-series method was 0.62 (95% confidence interval (CI) 0.38-1.00) with a significantly decreased risk after dose 3 (RI 0.30 (95% CI 0.11-0.77)). For MenB vaccine, the RI after doses 1 or 2 was 1.03 (95% CI 0.51-2.05) and 0.64 (95% CI 0.08-5.26) after dose 3. This study shows no evidence of an increased risk of KD after either vaccine.
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0359 The Moderating Role of Race in the Association of Adolescent Sleep Duration and Marijuana Use. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Insufficient sleep and marijuana use during adolescence vary by race and are associated with poor outcomes in various domains. Sleep difficulties predict drug-related problems, but not all adolescents with insufficient sleep go on to use substances. We examined whether race/ethnicity moderates the association of sleep duration and marijuana use among Black/African-American and White adolescents using a countywide probability-based survey of adolescents.
Methods
Using cross-sectional data (n=1447), logistic regression examined whether race moderated the association of adolescent sleep duration and recent marijuana use alone and after controlling for covariates in both weighted and unweighted models.
Results
Hours of sleep was significantly negatively associated with recent marijuana use. Black/African-American youth in our sample had up to a 60% increased odds of marijuana use in the past 30 days compared to White youth, and they reported significantly shorter sleep duration than their White peers. In weighted models, Black/African-American youth had an increased probability of marijuana use with fewer hours of sleep as compared to White youth, even after accounting for covariates.
Conclusion
In our countywide survey of adolescents, we found racial differences in the association of sleep duration and marijuana use. Future work should replicate our analyses with a longitudinal sample of adolescents to better evaluate the direction of these effects. Future efforts should also focus on identifying contextual factors that may explain racial differences in the sleep duration—substance use relationship, as well as developing strategies to reduce disparities in this relationship.
Support
The Heinz Foundation, the Hillman Foundation, the Grable Foundation, and the FISA Foundation. Dr. Levenson’s effort was supported by NICHD.
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Outcomes of Left Ventricular Assist Device Implantation with Mitral Regurgitation with and without Concomitant Mitral Operation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Clinical Implications of Concomitant Surgical Intervention for Aortic Insufficiency with Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Questionable Value of Concomitant Tricuspid Valve Procedure with Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Differences in nasal immunoglobulin A responses to influenza vaccine strains after live attenuated influenza vaccine (LAIV) immunization in children. Clin Exp Immunol 2020; 199:109-118. [PMID: 31670841 PMCID: PMC6954673 DOI: 10.1111/cei.13395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2019] [Indexed: 11/28/2022] Open
Abstract
Different vaccine strains included in the live attenuated influenza vaccine (LAIV) have variable efficacy. The reasons for this are not clear and may include differences in immunogenicity. We report a Phase IV open-label study on the immunogenicity of a single dose of quadrivalent LAIV (Fluenz™ Tetra) in children during the 2015/16 season, to investigate the antibody responses to different strains. Eligible children were enrolled to receive LAIV; nasal samples were collected before and approximately 4 weeks after immunization. There was a significant increase in nasal immunoglobulin (Ig)A to the H3N2, B/Victoria lineage (B/Brisbane) and B/Yamagata lineage (B/Phuket) components, but not to the H1N1 component. The fold change in nasal IgA response was inversely proportional to the baseline nasal IgA titre for H1N1, H3N2 and B/Brisbane. We investigated possible associations that may explain baseline nasal IgA, including age and prior vaccination status, but found different patterns for different antigens, suggesting that the response is multi-factorial. Overall, we observed differences in immune responses to different viral strains included in the vaccine; the reasons for this require further investigation.
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390 A Thematic Analysis of the Online Discussion Board, FrankTalk, Regarding Penile Implant. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Despite medical and surgical advances in treatment of intestinal failure, intestine transplant still plays an important role. However, the number of new patients added to the intestine transplant waiting list has decreased over the past decade, reaching a low of 135 in 2018. The number of intestine donors also decreased, reaching a low of 106 in 2018, and the number of intestine transplants performed declined to its lowest level, 104, of which 59% were intestine-liver transplants. Graft failure has plateaued over the past decade. Patient survival for transplants in 2011-2013 varied by age and transplant type. Patient survival was lowest for adult intestine-liver recipients (1-and 5-year survival 66.7% and 49.1%, respectively) and highest for pediatric intestine recipients (1-and 5-year survival 89.1% and 76.4%, respectively).
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Abstract
Data on adult liver transplants performed in the US in 2018 are notable for (1) continued growth in numbers of new waitlist registrants (11,844) and transplants performed (8250); (2) continued increase in the transplant rate (54.5 per 100 waitlist-years); (3) a precipitous decline in waitlist registrations and transplants for hepatitis-C-related indications; (4) increases in waitlist registrants and recipients with alcoholic liver disease and with clinical profiles consistent with non-alcoholic fatty liver disease; (5) increased use of hepatitis C virus antibody-positive donor livers; and (6) continued improvement in graft survival despite changing recipient characteristics such as older age and higher rates of obesity and diabetes. Variability in transplant rates remained by candidate race, hepatocellular carcinoma status, urgency status, and geography. The volume of pediatric liver transplants was relatively unchanged. The highest rate of pre-transplant mortality persisted for children aged younger than 1 year. Children underwent transplant at higher acuity than in the past, as evidenced by higher model for end-stage liver disease/pediatric end-stage liver disease scores and listings at status 1A and 1B at transplant. Despite higher illness severity scores at transplant, pediatric graft and patient survival posttransplant have improved over time.
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Burnout and quality of life among masseurs with visual impairment - Polish cross-sectional study. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although there are about 1.3 billion people affected by visual impairment (VI), they do not have equal access to social activities, i.e. they are very often unemployed. The authors hypothesized that being job active plays crucial role for their well-being. The aim of the study was to evaluate the level of burnout and quality of life (QoL) among Polish massage therapists with VI and to determine their relationship with sociodemographic and work-related variables.
Methods
43 participants aged 28-63, blind or poor-sighted were surveyed with sociodemographic data questionnaire and Polish versions of the Maslach Burnout Inventory-General Survey to measure burnout and World Health Organization Quality of Life Questionnaire (WHOQOL-BREF) to evaluate quality of life.
Results
Low level of burnout was indicated: 6.79 ± 4.45 in the exhaustion, 7.30 ± 3.43 in cynicism and 23.3 ± 5.44 in professional efficacy. Among domains of QoL the psychological one was the highest (73.6 ± 10.0). Professional efficacy correlated with the social QOL domain (ρ = 0.306; t = 2.056; p = 0.046). Among significant socio-demographic determinants of QOL marital status and working conditions were found. The most general explanation is that job activity gives feeling of self-realization, independence and enhance social functioning which has important meaning for QOL and can be a protective factor for burnout among workers with disability (according to researches among healthy professionals they are at high risk of burnout).
Conclusions
Job activity is essential for psychosocial rehabilitation in VI. That is why we recommend education tailored to the needs and capabilities of persons with VI to prepare them for work as well as supporting employers in creating jobs opportunities for people with disabilities.
Key messages
Job opportunities for people with disabilities mean higher level of psychosocial functioning. Workers with disabilities present lower risk of burnout than professionals without impairment.
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EP1.04-15 NSCLC Response Determinants to Chemoimmunotherapy: Deep Profiling of Tumors Following Neoadjuvant Cemiplimab and Chemotherapy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Treatment outcomes of head and neck cancer patients 70 years and older receiving different chemo-radiation combinations. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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High Performance Bi-2212 Round Wires Made with Recent Powders. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY : A PUBLICATION OF THE IEEE SUPERCONDUCTIVITY COMMITTEE 2019; 29:6400405. [PMID: 33737796 PMCID: PMC7968414 DOI: 10.1109/tasc.2019.2895197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Multifilamentary Bi2Sr2CaCu2Ox (Bi-2212) wire made by the powder-in-tube technique is the only high temperature superconductor made in the round shape preferred by magnet builders. The critical current density (J C ) of Bi-2212 round wire was improved significantly by the development of overpressure heat treatment in the past few years. Bi-2212 wire is commercially available in multiple architectures and kilometer-long pieces and a very promising conductor for very high field NMR and accelerator magnets. We studied the effects of precursor powder and heat treatment conditions on the superconducting properties and microstructure of recent Bi-2212 wires. Short samples of recent wire with optimized overpressure processing showed J C (4.2 K, 15 T) = 6640 A/mm2 and J C (4.2 K, 30 T) = 4670 A/mm2, which correspond to engineering critical current densities J E (4.2 K, 15 T) = 1320 A/mm2 and J E (4.2 K, 30 T) = 930 A/mm2.
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76Should we go with the flow? A case for the diagnosis and treatment of microvascular dysfunction. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez139.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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360Sex differences in imaging referral patterns and angiographic referral rates among emergency department chest pain unit patients. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez146.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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A tale of two encephalopathies: two cases of acute hyperammonaemia in malnourished adult patients. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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P289SPECT camera head configuration, acquisition time, and resolution recovery processing impact image defect size quantification. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez148.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Reduction in Plasma Macrophage Migration Inhibitory Factor and Angiopoietin-2 Levels during Venoarterial Extracorporeal Membrane Oxygenation Support. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Renforcer les suivis en présence de vulnérabilités : l’évaluation des besoins des familles par les travailleurs médico-sociaux de l’Office de la naissance et de l’enfance en Belgique francophone. Rev Epidemiol Sante Publique 2019. [DOI: 10.1016/j.respe.2018.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Abstract
Data on adult liver transplants performed in the US in 2017 are notable for (1) continued growth in numbers of new waitlist registrants (11,514) and of transplants performed (8,082); (2) continued increase in the transplant rate (51.5 per 100 waitlist-years); (3) a precipitous decrease in waitlist registrations and transplants for hepatitis C-related indications; (4) reciprocal increases in waitlist registrants and recipients with alcoholic liver disease and with clinical profiles consistent with non-alcoholic fatty liver disease; and (5) continued improvement in graft survival despite changing recipient characteristics such as older age and higher rates of obesity. Variability in transplant rates remained by candidate race, presence of hepatocellular carcinoma, urgency status (status 1A versus model for end-stage liver disease (MELD) score >35), and geography. More than half of all children listed for liver transplant in 2017 were aged younger than 5 years in 2017, and the highest rate of pretransplant mortality persisted for children aged younger than 1 year. Children underwent transplant at higher acuity than the past, as evidenced by higher MELD/pediatric end-stage liver disease scores and listings at status 1A and 1B. Higher acuity at transplant is likely due to lack of access to suitable donor organs, which has been compensated for by persistent trends toward use of partial or split liver grafts and ABO-incompatible grafts. Despite higher illness severity scores at transplant, pediatric graft and patient survival posttransplant have improved over time.
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HOUSING WITH SERVICES: THE RIGHT CARE, RIGHT PLACE, RIGHT TIME PROGRAM. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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