Publications by authors named "Konrad Neumann"

Purpose: To assess the utility of DWI-MRI to differentiate arteritic (A-AION) from non-arteritic (NA-AION) ischemic optic neuropathy.

Methods: This bicentric cohort-study evaluated 3T DWI-MRI scans performed within 10 days after onset of AION in patients treated between 2014 and 2024 at two tertiary care centers. DWI was first assessed for the presence of restricted diffusion within the optic nerve.

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Flail chest (FC) injuries are multiple adjacent segmental rib fractures, commonly associated with a high complication and mortality risk. Recent evidence suggests that the early surgical stabilization of FC injuries is beneficial for restoring breathing mechanics. However, little is known about the effects on lung volumes when invasive ventilation is performed after surgery.

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Background: Computed tomography (CT) is as safe as invasive coronary angiography (ICA) in the incidence of major adverse cardiovascular events in patients with atypical chest pain. However, the cost-utility of CT and ICA in healthcare after long-term follow-up is still unknown.

Methods: A prespecified cost-utility analysis (CUA) of 329 patients with atypical chest pain from a single-centre randomised trial compared CT and ICA.

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Importance: The effect of computed tomography (CT) vs invasive coronary angiography (ICA) on health status outcomes is unknown.

Objective: To evaluate CT and ICA first-test strategies on quality of life (QOL) and angina.

Design, Setting, And Participants: The Diagnostic Imaging Strategies for Patients With Stable Chest Pain and Intermediate Risk of Coronary Artery Disease (DISCHARGE) randomized clinical trial, conducted between October 2015 and April 2019 in 26 European centers, followed up patients with stable chest pain and intermediate probability of coronary artery disease for a median 3.

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Purpose: To investigate the effect of tooth age on dentin adhesion of different luting systems to the root canal.

Materials And Methods: 180 root canals of extracted teeth were divided into three age-specific groups (n = 60): young 20-35 (y), middle-aged 45-60 (m), and older 70-85 (o) years. Ten teeth of each age group were assigned to a luting system: Panavia 21 with ED Primer (P21, Kuraray); Core X Flow with Prime&Bond active and Self-Cure Activator (CXF, Dentsply Sirona); Multilink Automix with Multilink Primer (ML, Ivoclar Vivadent); Panavia SA Cement Plus (PSA, Kuraray); Smart Cem 2 (SM2, Dentsply Sirona); Speed CEM Plus (SCP, Ivoclar Vivadent).

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Objective: CD168 has been established as a negative prognostic marker in various tumor entities leading to a poor prognosis. Regarding OSCC, there is a lack of comprehensive studies that examine the correlation between CD168 expression and clinical outcome, hindering the implementation of this prognostic factor into clinical practice.

Materials And Methods: This retrospective analysis included all patients with primary pT1 and pT2 pN0 OSCC who received surgical therapy without the need for adjuvant therapy (pN0, M0, R0) over a seven-year long period.

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Background: Data regarding the effectiveness and safety of endoscopic lung volume reduction with valves (ELVR) in emphysema patients with a very low 6-min walk test (6MWT) are limited. Patients with severe emphysema and very low exercise capacity, as indicated by a 6MWT ≤140 m, are often excluded from clinical studies on ELVR, assuming limited therapeutic benefits and increased complication risk.

Study Designs And Methods: This study utilised data from the Lungenemphysemregister e.

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Purpose: We developed the online-based counseling tool iKNOW for women with a pathogenic germline variant in to improve risk understanding and quality of life.

Methods: With a randomized controlled trial, we investigated the efficacy of iKNOW with regard to risk understanding (primary endpoint), quality of life, risk perception, and anxiety (secondary endpoints). Self-report questionnaires were administered to  = 217 women with a pathogenic variant in before counseling (T0), immediately after (T1), 4 weeks after (T2), and 6 months after (T3).

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Objective: Despite numerous studies addressing the impact of p16 in oral squamous cell carcinoma (OSCC), consistent data regarding survival and tumor proliferation behavior are lacking. Although some authors investigate both p16 and Mib/Ki-67 in their cohorts, direct correlations are consistently missing. The aim of this study was to investigate the combined influence of p16 and Mib/Ki-67 status on prognosis in OSCC.

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Unlabelled: Stroke frequently results in mobility impairments, contributing to an increased cardiovascular risk. Despite efforts to promote physical activity, stroke survivors fail to meet recommended levels. This secondary analysis of the 'Physical Fitness in Patients with Subacute Stroke' (Phys-Stroke) trial analyzes physical activity at 6 months post-stroke, and examines the effect of gains in walking capacity during the subacute phase on physical activity in the chronic stage.

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Spreading depolarization (SD) describes a propagating neuronal mass depolarization within the cerebral cortex that represents a mediator of infarct development and strongly stimulates the metabolic rate of O2 consumption. Here, we investigated the influence of spreading depolarization on brain tissue partial pressure of O2 (ptiO2) within the peri-infarct tissue of patients suffering malignant hemispheric stroke. This prospective observational trial included 25 patients with malignant hemispheric stroke that underwent decompressive hemicraniectomy followed by subdural placement of electrodes for electrocorticography (ECoG) and neighbouring implantation of a ptiO2 probe within the peri-infarcted cortex.

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Background: Posterior globe flattening (PGF) is a specific neuroimaging sign in patients with idiopathic intracranial hypertension (IIH), but its detection is based on subjective qualitative neuroradiological assessment. This study sought to evaluate the utility of transorbital ultrasound to detect and quantify PGF in IIH patients using the Posterior Globe Angle (PGA).

Methods: Consecutive IIH patients and healthy controls were enrolled in a prospective case-control study.

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Article Synopsis
  • Neoadjuvant therapy (NT) is a standard treatment for locally advanced rectal cancer, and endoscopic vacuum therapy (EVT) is used to address anastomotic leakage after rectal surgery.
  • A study analyzed 243 patients who underwent rectal resection, finding that 19.3% experienced anastomotic leakage requiring EVT, with 61.7% of these patients receiving NT.
  • Results showed no significant differences in EVT duration, healing time, treatment failure rates, or ostomy reversal between patients who received NT and those who didn't, indicating that NT does not negatively impact EVT outcomes.
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Background: Approximately 15% of patients experience post-hepatectomy liver failure after major hepatectomy. Poor hepatocyte uptake of gadoxetate disodium, a magnetic resonance imaging contrast agent, may be a predictor of post-hepatectomy liver failure.

Methods: A retrospective cohort study of patients undergoing major hepatectomy (≥3 segments) with a preoperative gadoxetate disodium-enhanced magnetic resonance imaging was conducted.

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Background Coronary artery calcium (CAC) has prognostic value for major adverse cardiovascular events (MACE) in asymptomatic individuals, whereas its role in symptomatic patients is less clear. Purpose To assess the prognostic value of CAC scoring for MACE in participants with stable chest pain initially referred for invasive coronary angiography (ICA). Materials and Methods This prespecified subgroup analysis from the Diagnostic Imaging Strategies for Patients With Stable Chest Pain and Intermediate Risk of Coronary Artery Disease (DISCHARGE) trial, conducted between October 2015 and April 2019 across 26 centers in 16 countries, focused on adult patients with stable chest pain referred for ICA.

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Importance: The effectiveness and safety of computed tomography (CT) and invasive coronary angiography (ICA) in different age groups is unknown.

Objective: To determine the association of age with outcomes of CT and ICA in patients with stable chest pain.

Design, Setting, And Participants: The assessor-blinded Diagnostic Imaging Strategies for Patients With Stable Chest Pain and Intermediate Risk of Coronary Artery Disease (DISCHARGE) randomized clinical trial was conducted between October 2015 and April 2019 in 26 European centers.

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Background Recent trials support the role of cardiac CT in the evaluation of symptomatic patients suspected of having coronary artery disease (CAD); however, body mass index (BMI) has been reported to negatively impact CT image quality. Purpose To compare initial use of CT versus invasive coronary angiography (ICA) on clinical outcomes in patients with stable chest pain stratified by BMI category. Materials and Methods This prospective study represents a prespecified BMI subgroup analysis of the multicenter Diagnostic Imaging Strategies for Patients with Stable Chest Pain and Intermediate Risk of Coronary Artery Disease (DISCHARGE) trial conducted between October 2015 and April 2019.

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In patients with prostate cancer (PCa), salvage radiotherapy (SRT) for biochemical progression (BP) after radical prostatectomy (RP) improves PCa-specific survival. However, no prospective randomized trials have compared the effect of SRT with untreated patients. In this analysis of 151 patients who received SRT for post-RP BP, we compared their overall survival (OS) with virtual, age-matched controls ( = 151,000) retrieved from government life tables.

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Article Synopsis
  • This study aimed to compare the impact of cardiac CT versus invasive coronary angiography (ICA) on cardiovascular events, particularly looking at how smoking status affects these outcomes.
  • Results showed that the effectiveness of CT versus ICA in preventing major adverse cardiovascular events (MACE) was similar across different smoking groups, but a CT-first approach notably reduced complications and procedures needed, especially for smokers.
  • The findings suggest that a CT-first strategy is beneficial for detecting non-obstructive coronary artery disease in patients with stable chest pain, leading to fewer complications regardless of smoking status.
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Article Synopsis
  • Older nursing home residents often experience multiple skin issues simultaneously, and existing guidelines tend to address these conditions individually rather than collectively.
  • This study implemented a six-month structured skincare program in one group of nursing homes while another group continued with standard care, assessing various skin conditions and resident-reported outcomes.
  • Results showed that the intervention significantly reduced the incidence of skin tears, pressure ulcers, and intertrigo compared to the control group, indicating the effectiveness of the skincare program for elderly residents.
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Objectives: Despite the success of coronary artery bypass graft (CABG) surgery using autologous saphenous vein grafts (SVGs), nearly 50% of patients experience vein graft disease within 10 years of surgery. One contributing factor to early vein graft disease is endothelial damage during short-term storage of SVGs in inappropriate solutions. Our aim was to evaluate the effects of a novel endothelial damage inhibitor (EDI) on SVGs from patients undergoing elective CABG surgery and on venous endothelial cells (VECs) derived from these SVGs.

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Objective: To compare cardiac computed tomography (CT) with invasive coronary angiography (ICA) as the initial strategy in patients with diabetes and stable chest pain.

Research Design And Methods: This prespecified analysis of the multicenter DISCHARGE trial in 16 European countries was performed in patients with stable chest pain and intermediate pretest probability of coronary artery disease. The primary end point was a major adverse cardiac event (MACE) (cardiovascular death, nonfatal myocardial infarction, or stroke), and the secondary end point was expanded MACE (including transient ischemic attacks and major procedure-related complications).

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Background: The number of elderly and care-dependent people is increasing, leading to increased risks of adverse skin conditions. Skin care, including prevention and treatment of vulnerable skin, is an essential part of daily nursing practice in long-term residential settings. For many years, the research focus has been on individual skin problems including xerosis cutis, incontinence-associated dermatitis, skin tears, pressure ulcers, and intertrigo, although people may be affected by several at the same time.

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Aims: We investigated the incremental advantage in terms of N-terminal pro-B-type natriuretic peptide (NT-proBNP) reduction in patients affected by heart failure with reduced ejection fraction (HFrEF) treated with sacubitril/valsartan (S/V) and mineralocorticoid receptor antagonists (MRA) versus patients treated with S/V only.

Methods: Consecutive adult patients with a left ventricular ejection fraction (LVEF) of ≤40% who were followed in our outpatient clinic from January 2016 to December 2019 and treated with S/V were analysed.

Results: Out of eligible 147 patients, 99 were treated with S/V+MRA at baseline and 48 patients were treated with S/V.

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