Publications by authors named "Reimann P"

Article Synopsis
  • Older adults still face high risks of severe outcomes from COVID-19, even with the milder Omicron variant, due to weakened immune responses and insufficient data on antibody efficacy.
  • A study involving 785 older patients found that those with low antibody levels (< 1,200 BAU/mL) had significantly higher mortality and critical care needs compared to those with higher levels.
  • The findings suggest that monitoring antibody levels might be more effective than relying solely on vaccination status to protect older adults from severe COVID-19 outcomes.
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  • This study evaluates the use of durvalumab combined with platinum and gemcitabine for treating biliary tract cancers, aiming to validate previous trial results in a real-world setting and investigate how molecular profiles may affect patient outcomes.* -
  • The analysis involved 102 patients from multiple cancer centers, revealing a 71.57% disease control rate and a median overall survival of 13.61 months, with younger patients showing better outcomes.* -
  • Findings indicate that while no specific molecular profiles predicted better responses to durvalumab, patients receiving tailored second-line therapy showed a potential survival advantage, highlighting the need for further research in this area.*
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Objectives: Despite the currently prevailing, milder Omicron variant, coronary artery disease (CAD) patients constitute a major risk group in COVID-19, exhibiting 2.6 times the mortality risk of non-CAD patients and representing over 22% of non-survivors. No data are currently available on the efficacy of antibody levels in CAD patients, nor on the relevance of vaccination status versus antibody levels for predicting severe courses and COVID-19 mortality.

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Background: Patients with bone metastases from solid tumors often have additional treatment with bone targeted agents (BTAs) to avoid symptomatic skeletal events (SSEs) such as clinically significant pathological fracture leading toradiation therapy or surgery to the bone, spinal cord compression, or hypercalcemia. The absolute value of BTA treatment in the era of immunotherapy (IO) is unknown.

Methods: Patients with bone metastases treated with immunotherapy within the Alpine Tumor Immunology Registry were compared based on whether they received an additional BTA such as denosumab or zoledronic acid.

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  • A retrospective study was conducted on 319 adults with early-stage non-small cell lung cancer (NSCLC) in Austria from January 2018 to December 2021, focusing on their profiles and initial treatment options.
  • Key findings showed that biomarkers like PD-L1, KRAS, and EGFR were tested, with varying treatment paths for patients in different stages (StI: 82% underwent surgery, StII: 85%, StIII: 36%).
  • The study highlighted that treatments were generally in line with existing guidelines, occurring before the introduction of immune checkpoint inhibitors and targeted therapies in earlier treatment stages.
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Objectives: Despite high global vaccination coverage, it remains unclear how vaccination and anti-SARS-CoV-2 antibodies affect immune responses and inflammation levels in patients with COVID-19. It is further unclear whether the inflammatory response differs depending on antibody levels and whether the combination of antibody and inflammation levels in COVID-19 patients affects mortality rates.

Methods: We conducted a prospective multicenter cohort study that included 1031 hospitalized COVID-19 patients from five hospitals.

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Monoclonal antibodies, as tixagevimab/cilgavimab, have been introduced as prophylaxis against COVID-19 infections in high-risk populations. However, data on efficacy are limited. This study investigates efficacy and tolerability of tixagevimab/cilgavimab in hematological patients under real-life conditions.

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Objectives: Globally, over 772 million cases of COVID-19 have been reported. New variants of interest with corresponding spikes in case numbers continue to be identified. Vulnerable patients, including older adults or patients with severe comorbidities, continue to be at risk.

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The question of how systems respond to perturbations is ubiquitous in physics. Predicting this response for large classes of systems becomes particularly challenging if many degrees of freedom are involved and linear response theory cannot be applied. Here, we consider isolated many-body quantum systems which either start out far from equilibrium and then thermalize, or find themselves near thermal equilibrium from the outset.

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  • Early C-reactive protein (CRP) kinetics may serve as a predictive biomarker for the effectiveness of immune checkpoint inhibitor (ICI) therapy across various cancer types, aiming to enhance treatment outcomes.
  • A study analyzed two patient cohorts receiving palliative ICI treatment, classifying CRP kinetics into four patterns and examining their association with objective response rate (ORR), progression-free survival (PFS), and overall survival (OS).
  • Results showed that patients with normal CRP levels had significantly better ORR, PFS, and OS compared to those with abnormal CRP kinetics, validating CRP kinetics as a reliable indicator of treatment efficacy regardless of cancer type.
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Laser-based directed energy deposition using metal powder (DED-LB/M) offers great potential for a flexible production mainly defined by software. To exploit this potential, knowledge of the process parameters required to achieve a specific track geometry is essential. Existing analytical, numerical, and machine-learning approaches, however, are not yet able to predict the process parameters in a satisfactory way.

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  • Multiple myeloma (MM) is a complex cancer that requires multiple treatment lines due to frequent relapses, with varying attrition rates reported.
  • A study of 571 patients from the Austrian Myeloma Registry found that around 43.6% underwent stem cell transplantation and that appropriate frontline treatment significantly reduced attrition rates.
  • Factors such as younger age and achieving deep remission after treatment correlated with better long-term outcomes, suggesting that access to effective medications plays a crucial role in managing MM.
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Purpose: RAS mutations are predictors of an adverse outcome in EGFR-targeted therapies and have been proposed as prognostic biomarkers of survival in metastatic colorectal cancer (mCRC). The analysis of circulating tumor DNA from plasma samples, known as liquid biopsies, has indicated that the RAS mutation status may change over time, potentially affecting patients' prognosis. To further evaluate the clinical validity of RAS mutation retesting using liquid biopsies, we prospectively investigated the impact of the circulating quantitative RAS mutation status on the course of mCRC.

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Cell surface syndecans and glypicans play important roles in the development and prognosis of colorectal cancer (CRC). Their soluble forms from proteoglycan shedding can be detected in blood and have been proposed as new prognostic biomarkers in several cancer entities. However, studies on circulating syndecan-1 (SDC1) and glypican-4 (GPC4) in CRC are limited.

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Background: Safety and efficacy of immune checkpoint inhibitors in advanced gastric or gastroesophageal junction (GEJ) cancer could be demonstrated in predominantly Asian cohorts, whereas data in Western patients outside of clinical trials are vastly missing.

Methods: In this multi-institutional retrospective analysis conducted at nine oncologic centers in Austria, we tried to assess feasibility of checkpoint inhibitors in advanced gastric/GEJ cancer in a real-world Western cohort.

Results: In total, data from 50 patients with metastatic gastric/GEJ cancer who received nivolumab or pembrolizumab in a palliative setting between November 2015 and April 2020 have been evaluated.

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Patients with haemato-oncological malignancies are one of the high-risk groups for a severe course in case of COVID-19 infections. Furthermore, vaccination results in significantly lower response rates in haematological malignancies and lower antibody levels in patients with solid cancer. We investigated efficacy and safety of a heterologous booster vaccination with Ad26.

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Background Recent trial results support the efficacy of renal sympathetic denervation in lowering blood pressure (BP). While BP reduction in general is associated with a clinically meaningful reduction in cardiovascular events and mortality, such a relationship has not been described for patients undergoing renal sympathetic denervation. Methods and Results Clinical events were assessed in patients who underwent renal sympathetic denervation at our center using telephone- and clinical follow-up, interviews with general practitioners, as well as review of hospital databases.

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Although the principles behind assessment for and as learning are well-established, there can be a struggle when reforming traditional assessment of learning to a program which encompasses assessment for and as learning. When introducing and reporting reforms, tensions in faculty may arise because of differing beliefs about the relationship between assessment and learning and the rules for the validity of assessments. Traditional systems of assessment of learning privilege objective, structured quantification of learners' performances, and are done to the students.

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Haemato-oncological patients are at risk in case of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. Currently, vaccination is the best-evaluated preventive strategy. In the present study, we aimed to assess serological response, predictive markers, and safety of BNT162b2 in haemato-oncological patients.

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The groundbreaking investigation by Deutsch [Phys. Rev. A 43, 2046 (1991)PLRAAN1050-294710.

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An analytical prediction is established of how an isolated many-body quantum system relaxes towards its thermal longtime limit under the action of a time-independent perturbation, but still remaining sufficiently close to a reference case whose temporal relaxation is known. This is achieved within the conceptual framework of a typicality approach by showing and exploiting that the time-dependent expectation values behave very similarly for most members of a suitably chosen ensemble of perturbations. The predictions are validated by comparison with various numerical and experimental results from the literature.

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Background: Despite recent innovations in total knee arthroplasty, 20% of the patients are not completely satisfied with the clinical results. Regarding patient-specific implants (PSI), the study aims to compare individual and off-the-shelf implant (OSI) total knee arthroplasty (TKA) concerning the postoperative outcome like function and global patient satisfaction.

Methods: In 2013/14 228 patients received a TKA due to primary osteoarthritis with an indication for a bicondylar, cruciate retaining prosthesis.

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Prethermalization refers to the remarkable relaxation behavior which an integrable many-body system in the presence of a weak integrability-breaking perturbation may exhibit: After initial transients have died out, it stays for a long time close to some nonthermal steady state, but on even much larger time scales, it ultimately switches over to the proper thermal equilibrium behavior. By extending Deutsch's conceptual framework from Phys. Rev.

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We explore how the expectation values 〈ψ|A|ψ〉 of a largely arbitrary observable A are distributed when normalized vectors |ψ〉 are randomly sampled from a high-dimensional Hilbert space. Our analytical results predict that the distribution exhibits a very narrow peak of approximately Gaussian shape, while the tails significantly deviate from a Gaussian behavior. In the important special case that the eigenvalues of A satisfy Wigner's semicircle law, the expectation-value distribution for asymptotically large dimensions is explicitly obtained in terms of a large deviation function, which exhibits two symmetric nonanalyticities akin to critical points in thermodynamics.

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