bluuebunny/crossref_metadata_2025_split huggingface dataset:
Propensity-matched analysis does not support angiosome-guided revascularization of multilevel peripheral artery disease (PAD)
Authors: Kurianov Pavel , Lipin Alexandr , Antropov Alexey , Atmadzas Kirill , Gruzdev Nikita , Tankaeva Zaynab , Atmadzas Alisa , Orlov Anton , Borisov Alexey , Sobolev Roman , Eminov Yanis 
Published: September 2021

Background: This retrospective comparative cohort study evaluated the clinical outcome of angiosome-guided endovascular arterial reconstructions in chronic limb-threatening ischemia (CLTI) due to multilevel peripheral artery disease (PAD). Methods: Patients treated in an endovascular fashion for CLTI with tissue loss due to multilevel PAD were analyzed. Limbs were classified as having undergone either angiosome-guided (direct) revascularization (DR) or nonangiosomic (indirect) revascularization (IR). DR was defined as uninterrupted in-line flow to the affected angiosome, revascularization through the pedal arch was also considered direct. Groups were adjusted with propensity score (PS) matching and compared for amputation-free survival (AFS), freedom from major adverse limb events (MALE), and healing rate at 12 months. Results: A total of 174 patients (81 men, mean age 70.0 ± 10.4 y) were included. PS matching produced two groups of 55 patients each: DR (24 men, mean age 71.7 ± 10.7 y) and IR (26 men, mean age 72.0 ± 9.4 y). The matched groups had no significant differences in baseline variables. At 12 months there were no significant differences in AFS (73.2% vs 71.6%; p = 0.841), freedom from MALE (71.7% vs 66.1%; p = 0.617), and healing rate (72.7% vs 72.0%; p = 1.000) between DR and IR, respectively. Conclusion: This study failed to support the use of angiosome concept in CLTI due to multilevel disease.
Social Support Received and Provided in the Adjustment of Parents of Children With Cancer
Authors: Melguizo-Garín Anabel , Hombrados-Mendieta Isabel , José Martos-Méndez Mª , Ruiz-Rodríguez Iván 
Published: September 2021

Objective: The aim of the present study is to determine the relation between the satisfaction of parents of children with cancer with the social support received and provided from a multidimensional perspective (sources and types of support) and the disruptions that take place in different areas of their lives (partner, children, family, social relations, and economic and employment situation) Method: One hundred twelve parents of children diagnosed with cancer who received treatment at the Mother and Child Hospital of Málaga (Spain) were recruited. Data were gathered through self-reporting measures. The instrument used includes a questionnaire about socio-demographic variables, a questionnaire about parents’ adjustment to the situation and a questionnaire about social support received and provided based on the different sources and types of support. Results: There is a negative and significant relation between satisfaction with support received and provided and the magnitude of disruptions in parents’ lives. Conclusion: Satisfaction with emotional support received from the partner and family, and support provided to these sources, relate to lower disruption in different areas of parents’ lives. These results can have significant practical implications for the psychosocial care provided to parents of children with cancer.
Investigation of Health Behavior on Burnout Scores in Women Physicians who Self-Identify as Runners: A Cross-Sectional Survey Study
Authors: Uhlig-Reche Hannah , Larson Allison R. , Silver Julie K. , Tenforde Adam , McQueen Alisa , Verduzco-Gutierrez Monica 
Published: September 2021

As the proportion of women in the physician workforce increases, burnout in this population warrants further investigation. Exercise is an often-proposed strategy to combat burnout. Evaluating physical activity across a cohort of women physicians can assess associations of health behaviors with burnout. Cross-sectional study of women attending physicians in the United States who are actively engaged in a social media group for runners. An electronic survey comprised of 60 questions covering demographics, health behaviors, and burnout was administered. A healthy lifestyle subgroup (HLS) was defined based on American Heart Association physical activity and nutrition recommendations. We determine the prevalence of burnout and investigate associations between health behavior factors and burnout. Of the 369 included surveys, most respondents were at least six years out from medical training (85.9%) and White (74.5%). Forty-two percent experienced burnout symptoms. Time exercising was significantly associated with fruit/vegetable consumption ( P=.00002). There was no significant difference in burnout between the HLS compared to others ( P = .37). This group of self-reported physically active women physicians was found to have a lower prevalence of burnout when compared to other women physicians. Exercise and nutrition may be protective against burnout in women physicians but deserve further investigation.
Qualitative Study Protocol: Augmented Reality Technology to Deliver Asthma Inhaler Technique Training for Children and Adolescents With Asthma
Authors: O'Connor Antonia , Tai Andrew , Kopsaftis Zoe , Carson-Chahhoud Kristin 
Published: September 2021

Asthma is a chronic inflammatory condition of the airways with a heterogenous symptom profile. When symptoms are poorly controlled and frequent, asthma sufferers are impacted regularly, with limitations on physical activities and sleep disturbances, significantly impairing quality of life. Asthma is highly prevalent and the leading cause of disease burden in young people. Those aged 0–14 contribute to over half of the asthma hospitalisations within Australia. Asthma education and self-management remains a key component of care; however, challenges remain in the paediatric population with difficulties of engagement. Augmented reality (AR) may provide a novel and effective solution with its ability to superimpose virtual objects into a real-world setting. Using a smartphone or tablet to deliver AR makes this modality accessible to much of the population. AR is a growing field in technology and has already established uses in education and training. The ability to increase motivation, enhance enjoyment and encourage faster concept understanding in the educational setting is encouraging and supports our proposal that AR technology can provide a generation appropriate education delivery modality for young people with asthma. To ensure successful implementation of an AR asthma educational resource on a large scale, the usability, acceptability, barriers and enablers of its use must be investigated. Using an iterative co-design process, an asthma resource utilising AR to deliver education on inhaler technique will be created. Qualitative research will be undertaken using semi-structured interviews with moderator guides to obtain mixed-method data on the AR resource. Participants will be key members of the asthma community including children and adolescents with asthma (8–17 years old), caregivers of children and adolescents with asthma, and health professionals. Understanding the usability, acceptability, barriers and enablers of the AR resource will enable us to improve our alpha version and test an optimal version in a planned feasibility study.
Direct oral anticoagulants decrease treatment failure for acute lower extremity deep venous thrombosis
Authors: Hekman Katherine E , Chao Calvin L , Morgan Courtney E , Helenowski Irene B , Eskandari Mark K 
Published: September 2021

Objective Optimal medical therapy for acute lower extremity deep venous thrombosis (DVT) remains an enigma. While clinical trials demonstrate non-inferiority with an oral anti-Xa inhibitor, or direct oral anticoagulant (DOAC), versus combined low–molecular weight heparin (LMWH) and oral vitamin K antagonist (VKA), the most effective regimen remains to be determined. Methods This study is a single-center retrospective cohort study from October 2014 to December 2015 of patients with a diagnosis of acute DVT and subsequent serial lower extremity venous duplex. Demographics, medical history, medications, serial ultrasound findings, as well as the primary anticoagulant used for treatment were collected and analyzed by two independent data extractors. Treatment failure was defined as any new DVT or progression of an existing DVT within 3 months of diagnosis of the index clot. Risk factors for treatment failure were assessed using standard odds ratios and Fischer’s exact test. Results Among 496 patients with an acute lower extremity DVT, 54% ( n = 266) were men, mean age was 61 years, 35% ( n = 174) involved the popliteal or more proximal segments, and 442 had documentation of the primary treatment for DVT: 20% ( n = 90) received nothing; 20% ( n = 92) received an oral VKA; 34% ( n = 149) received a DOAC; 20% ( n = 90) received LMWH; and 5% ( n = 21) received another class of anticoagulant. Within 3 months, 21% ( n=89 out of 427) had treatment failure defined as any new DVT or progression of prior DVT. Patients treated with a DOAC were less likely to experience treatment failure when compared with any other treatment (odds ratio 0.43; 95% confidence intervals [0.23, 0.79]; p = 0.0069) and when compared with traditional oral VKA (OR 0.44; 95% CI [0.21, 0.92]; p = 0.029). None of prior history of DVT, pulmonary embolism, thrombophilia, renal insufficiency, hepatic insufficiency, cancer, or antiplatelet therapy correlated with treatment failure. Treatment outcome did not correlate with being on any anticoagulation versus none ( p = 0.74), nor did it correlate with the duration of treatment (<3 months versus ≥3 months) ( p = 0.42). Proximal and distal DVTs showed no difference in treatment failure (19% versus 22%, respectively; p = 0.43). Conclusion In summary, the use of a DOAC for acute lower extremity DVT yielded better overall outcomes and fewer treatment failures at 3 months as compared to traditional oral VKA therapy based on serial duplex imaging.
A case report: An increased oxygen extraction fraction in remote ischemic lesions after revascularization for moyamoya disease with a progression of posterior cerebral artery stenosis
Authors: Kawanami Kanako , Kokubo Yasuaki , Sato Shinji , Itagaki Hiroshi , Sonoda Yukihiko 
Published: September 2021

The cerebral metabolism, such as the oxygen extraction fraction (OEF), in remote ischemic lesions following revascularization for moyamoya disease (MMD) has not yet been fully elucidated. We herein report a patient with an increased OEF in a remote ischemic lesion after revascularization in a case of adult-onset MMD. A 21-year-old woman suffered from a left parietal lobe infarction due to MMD. At 2 months after onset, left superficial temporal artery (STA)–middle cerebral artery (MCA) bypass and encephalo-myo-synangiosis (EMS) were performed. The postoperative course was uneventful. 15O-positron emission tomography (PET) performed at 2 months after the first operation revealed an increased OEF in the contralateral (right) frontal lobe that was suspected of being possible remote ischemia. The patient underwent right STA-MCA bypass and EMS. 15O-PET at 14 days after the second operation revealed an increased OEF in the contralateral (left) occipital lobe that was suspected of potentially being remote ischemia caused by a watershed shift. Two years after the second surgery, left occipital artery (OA)–posterior cerebral artery (PCA) anastomosis and EMS were performed due to transient right hemianopsia. Neither rebleeding nor ischemic complications occurred 2 years after the third surgery. We need to be alert for the possible progression of PCA stenosis in MMD after revascularization. It might induce remote ischemia after revascularization. OA–PCA bypass is therefore considered to be an effective treatment option in such cases.
Gastrointestinal symptoms in COVID-19 could be associated with severe lung involvement and increased readmission rates
Authors: Bozkurt Hüseyin S , Bilen Ömer 
Published: September 2021

Introduction SARS-CoV-2 virus manifests itself with primary lung damage but also has intestinal involvement. In this study, we aimed to investigate the frequency of gastrointestinal symptoms (GIS) and the relationship of GIS with readmission to the hospital within 30 days in SARS-CoV-2 infected patients who were hospitalized in a specified pandemic hospital. Materials and Methods Symptomatic patients diagnosed with rapid antibody positivity with real-time polymerase chain reaction and typical thorax computed tomography findings were included in this retrospective cohort observational study. Demographic and clinical data were obtained from electronic medical records. Hospital-associated GIS were considered as experiencing at least one of the GIS such as gas, bloating, diarrhea, and constipation developing within72 h after hospital admission. Results The mean age of the patients was 58 ± 14.4 years and 60.7% were men. 82% of hospitalizations were a moderate and severe disease. 71.4% of patients without GIS had at least one of the GIS after hospitalization. As the severity of the disease increased, the frequency of the severity of gastrointestinal symptom increased. GIS bowel disorders were more prominent in patients with moderate and severe disease. Antibiotic and specific treatment (anti-Il-1, anti-Il-6) contributed to the occurrence of gastrointestinal symptom in SARS-CoV-2 inpatients. Conclusion According to our observations of the second wave of the pandemic, the presence, frequency, and severity of gastrointestinal symptom in inpatient is associated with severity of lung disease and increased readmission rate after discharge.
A Long-Term Follow-Up of Post-Operative Periprosthetic Humeral Fracture in Shoulder Arthroplasty
Authors: Novi Michele , Porcellini Giuseppe , Donà Alessandro , Tarallo Luigi , Micheloni Gianmario , Giorgini Andrea , Paladini Paolo , Catani Fabio 
Published: September 2021

Background During the last decades, the growing number of shoulder replacement has increased the associated complications. Periprosthetic fractures have a low incidence but can be a severe clinical condition, especially in elderly population. There are still no guidelines to define the best treatment protocol for post-operative periprosthetic humeral fractures. Factors associated to these fractures and consequently the decision-making for the best treatment seem to be patient-related but also correlated with the type of implant. The aim of this study is to analyze the patient’s risk factors, fracture pattern, implant type and treatment, evaluating the outcome with a long-term follow-up. Methods A retrospective study was performed on more than 2700 shoulder prostheses implanted over 10 years in two specialized centers, identifying 19 patients who underwent surgery for post-operative periprosthetic fracture. Gender, age, comorbidities, type of prosthetic implant, type of fracture, and cortical index of each patient were evaluated. All patients underwent surgery and were evaluated with a mean follow-up of 5 years with radiographic controls and functional assessment with the Constant–Murley score. Results Complete healing was achieved in 18 of 19 patients. All patients presented a lower Constant–Murley score than the pre-fracture score, there were no significant differences between prosthetic implants, and the cortical index was lower than the threshold level in more than 60% of cases. Conclusion The results of this study showed that a correct preoperative planning is essential to evaluate the type of implant and possible signs of stem mobilization. With a stable stem, it is preferable to maintain it and proceed to a synthesis. The decision process is more complex in periprosthetic fractures with a reduced cortical index, when some radiolucency lines are present in stems with high primary stability, because it is not always indicative of an unstable stem. Level of Evidence Therapeutic III
Effect of Comorbidity Burden on the Risk of Venous Thromboembolic Events after Total Knee Arthroplasty
Authors: Bala Abiram , Oladeji Kingsley , Amanatullah Derek F. 
Published: September 2021

Background Venous thromboembolic events (VTEs) are common after total knee arthroplasty (TKA). The rate of VTEs has improved with early mobilization, mechanical prophylaxis, and appropriate chemoprophylaxis. The aim of this study was to analyze the contribution of medical comorbidities to the risk of VTE after TKA Method Medicare claims from 2005 to 2014 were queried. International Classification of Diseases, Ninth revision (ICD-9), and Current Procedural Terminology codes were used to identify the diagnoses, procedures, and complications. 157,200 primary TKAs were age, sex, and Elixhauser Comorbidity Index (ECI) matched with 157,200 osteoarthritis controls. First instances of deep venous thrombosis (DVT) and pulmonary embolism were tracked at 90 days and 2 years. Odds ratios (ORs), confidence intervals, and P-values (p) were calculated and used to investigate the contribution of comorbidities. Results 90 days after TKA or OA diagnosis, comorbidities were associated with 45% of the DVT risk, 38% of the PE risk. 1 in 92 patients would be expected to be diagnosed with VTE after TKA and 1 in 136 patients after only the diagnosis of osteoarthritis. After 90 days, medical comorbidities were associated with 70% of the DVT risk, 68% of the PE risk. Conclusion Nearly 50% of DVTs and 40% of PEs within 90 days of TKA may be related to the baseline health of OA patients. Venous thromboembolic events after TKA are a “never” event according to Center of Medicare and services that appropriate VTE prophylaxis likely cannot be neutralized.
A Pilot Study of Radiculopathy Following Osteoporotic Vertebral Fracture in Elderly Patients: An Algorithmic Approach to Surgical Management
Authors: Lin Guang-Xun , Sun Li-Wei , Jhang Shang-Wun , Ou Su-Wei , Chang Kai-Sheng , Tsai Ru-Yin , Hu Bao-Shan , Rui Gang , Chen Chien-Min 
Published: September 2021

Background: Osteoporotic vertebral compression fractures (OVCF) due to severe and refractory back pain or neurological complications require surgical treatment. In this study, patients with radiculopathy due to foraminal stenosis following OVCF were surgically managed by performing transforaminal full-endoscopic lumbar foraminoplasty and/or discectomy (FELFD). Methods: From May 2015 to November 2019, fifteen patients underwent transforaminal FELFD. Patient data, Charlson comorbidity index (CCI), and American Society of Anesthesiologists (ASA) score were collected. Clinical outcomes, including pre- and postoperative Visual Analog Scale (VAS) scores for back and leg pain, Oswestry Disability Index (ODI), and MacNab criteria of response to surgical treatment, were evaluated. Results: Mean of age, bone mineral density (T-score), CCI, ASA, and follow-up duration were 69.5 ± 6.6 years, −2.6 ± 0.8, 5.2 ± 2.3, 2.4 ± 0.5, and 24.5 ± 8.8 months, respectively. Mean VAS for leg pain significantly decreased from 6.9 ± 0.8 preoperatively to 2.9 ± 1.1 ( P < .05). Mean ODI decreased from 39.9 ± 3.2 preoperatively to 19.3 ± 4.6 postoperatively ( P < .05). The satisfaction rate is 86.7% (based on Macnab criteria), showed six patients had excellent outcomes and seven had good outcomes. Conclusions: Transforaminal FELFD is an effective treatment option for patients with radiculopathy due to lumbar OVCF, including those with severe osteoporosis and elderly patients.
An autologous culture model of nodal B-cell lymphoma identifies ex vivo determinants of response to bispecific antibodies
Authors: Roider Tobias , Brinkmann Berit J. , Kim Vladislav , Knoll Mareike , Kolb Carolin , Roessner Philipp M. , Bordas Marie , Dreger Peter , Müller-Tidow Carsten , Huber Wolfgang , Seiffert Martina , Dietrich Sascha 
Published: September 2021

AbstractBispecific antibodies (BsAbs) can induce long-term responses in patients with refractory and relapsed B-cell lymphoma. Nevertheless, response rates across patients are heterogeneous, and the factors determining quality and duration of responses are poorly understood. To identify key determinants of response to BsAbs, we established a primary, autologous culture model allowing us to mimic treatment with CD3xCD19 and CD3xCD20 BsAbs within the lymph node microenvironment ex vivo. T cell–mediated killing of lymphoma cells and proliferation of T cells varied significantly among patients but highly correlated between BsAbs targeting CD20 or CD19. Ex vivo response to BsAbs was significantly associated with expansion of T cells and secretion of effector molecules (eg, granzyme B, perforin) but not with expression of T-cell exhaustion (eg, PD1, TIM3) or activation markers (eg, CD25, CD69) or formation of intercellular contacts. In addition, we identified a distinct phenotype of regulatory T cells that was linked to ex vivo response independently from T-cell frequency at baseline. High expression levels of Aiolos (IKZF1), ICOS, and CXCR5 were positively associated with ex vivo response, whereas strong expression of Helios (IKZF2) had an unfavorable impact on ex vivo response to BsAbs. We further showed that lenalidomide, nivolumab, and atezolizumab improved ex vivo response to BsAbs by potentiating T-cell effector functions. In summary, our ex vivo study identified a distinct regulatory T-cell phenotype as a potential contributor to treatment failure of BsAbs and suggests drug combinations of high clinical relevance that could improve the efficacy of BsAbs.
Interhospital transfer of COVID-19 patients treated with high-flow nasal oxygen therapy
Authors: Dubie Elophe , Morin François , Savary Dominique , Serruys Amaury , Usseglio Pascal 
Published: September 2021

AbstractAt the start of the COVID-19 pandemic, early intubation was recommended on the basis of worldwide observations of severe hypoxemia. However, some patients were ultimately able to benefit from high-flow nasal cannula (HFNC) and thus avoid intubation. During the “second wave” (September to December 2020 in France), some emergency departments implemented HFNC in patients with severe COVID-19. The question then arose regarding the transfer of these most serious patients to intensive care units (ICU) and of the respiratory modalities to be used during this transfer. To assess the feasibility of interhospital transfers of COVID-19 patients needing HFNC, we conducted a bi-centric prospective observational study of all medical transfers of patients needing HFNC with the Chambéry and Angers (France) mobile emergency and intensive care service (SMUR) during the “second wave” of the COVID-19 pandemic in France. Analysis of these 42 patients showed no significant variation in the respiratory requirements during the transfer. Overall, 52% of patients were intubated during their stay in ICU, including three patients intubated before or during transfer. Interhospital transfer with HFNC is very high-risk, and intubation remains indicated in the most unstable patients. However, 48% of patients benefited from HFNC and were thus able to avoid intubation during their transfer and ICU stay; for these patients, intubation would probably have been indicated in the absence of available HFNC techniques.