Publications by authors named "Karl-Goeran Sabel"

One of the most common clinical indications for amino acid PET using the tracer -(2-[F]-fluoroethyl)-l-tyrosine (F-FET) is the differentiation of tumor relapse from treatment-related changes in patients with gliomas. A subset of patients may present with an uptake of F-FET close to recommended threshold values. The goal of this study was to investigate the frequency of borderline cases and the role of quantitative F-FET PET parameters in this situation.

View Article and Find Full Text PDF

Objective: Malignant brain tumors are associated with debilitating symptoms and a poor prognosis, resulting in high psychological distress for patients and caregivers. There is a lack of longitudinal studies investigating psychological distress in this group. This study evaluated fear of progression (FoP), anxiety and depression in patients and their caregivers in the 6 months following malignant brain tumor diagnosis.

View Article and Find Full Text PDF

Objectives: A major characteristic of health anxiety is the tendency to attribute benign bodily sensations to serious illnesses. This has been supported by empirical research in non-clinical samples, and samples of individuals diagnosed with Hypochondriasis. However, no study to date has explored symptom attribution styles of individuals with the DSM-5 diagnosis of Illness Anxiety Disorder.

View Article and Find Full Text PDF

Objectives: This study aimed to explore how young adults with a history of dental trauma and restored teeth perceive their oral health-related quality of life (OHRQoL) and orofacial esthetics, with a focus on gender-based differences.

Materials And Methods: This pilot study is a retrospective case-control study. Young adults experiencing dental trauma and consequently receiving dental treatment were asked to answer CPQ11-14, Oral Esthetic Scale (OES), and some complimentary questions concerning the esthetics of their teeth.

View Article and Find Full Text PDF

Objectives: To evaluate the influence of clinical and procedural factors, particularly the thickness of reactive sclerosis, on clinical outcome of MR-guided high-intensity focused ultrasound (MR-HIFU) for the treatment of symptomatic osteoid osteomas (OO) of the extremities.

Materials And Methods: 18 consecutive patients (median age 19.5y) with symptomatic OO of the extremities eligible for MR-HIFU were enrolled in this ongoing prospective study (German Clinical Trials Register; nr.

View Article and Find Full Text PDF

Chinese people are experiencing phthalate exposure risks. However, temporal and regional phthalate internal exposure variations amongst Chinese have not been established. To address this gap, we integrated our 69 adult participants' bio-monitored urinary phthalate metabolite (UPM) concentration data by high-performance liquid chromatography with mass spectrometry in Xi'an and Nanjing and the data from 35 literature (total sample size: 18768).

View Article and Find Full Text PDF

Background: Glioma, the most prevalent primary brain tumor, poses challenges in prognosis, particularly in the high-grade subclass, despite advanced treatments. The recent shift in tumor classification underscores the crucial role of isocitrate dehydrogenase (IDH) mutation status in the clinical care of glioma patients. However, conventional methods for determining IDH status, including biopsy, have limitations.

View Article and Find Full Text PDF

Background: Gliomas, the most common primary brain tumours, are classified based on histology and molecular genetics. Glioblastomas (GBM) are highly aggressive and are graded as WHO grade 4, while astrocytoma and oligodendrogliomas fall under WHO grades 2-3 (4). Gliomas affect 6 per 100,000 people, with a higher incidence in men.

View Article and Find Full Text PDF

Purpose: To determine the efficacy and safety of repetitive transorbital alternating current stimulation (rtACS) treatment by assessing vision-related quality of life and visual function outcome in subjects treated with rtACS versus sham-control.

Study Design: Double masked, randomized, sham-controlled clinical trial (NCT03188042).

Subjects: Sixteen subjects with moderate-to-advanced glaucoma (visual field [VF] mean deviation [MD] ≤-6.

View Article and Find Full Text PDF

Background: Nodal surveillance (NS) has overtaken completion lymphadenectomy as the preferred management for sentinel node-positive (SLN+) melanoma, but requires frequent exams and nodal ultrasound (US). Social determinants of health (SDoH) may affect US adherence in real-world populations, and evaluation of these potential impacts is needed.

Methods: Adults with SLN+ melanoma diagnosed from July 2017 to December 2019 who received NS at nine cancer centers were identified retrospectively.

View Article and Find Full Text PDF

Background: Timely medical management and evacuation of critically ill or injured patients from austere environments or maritime vessels is often achieved by helicopter hoist operations. When indicated, intubation is performed onsite to restore and sustain patient physiology and to facilitate safe transport. We aimed to describe the characteristics of helicopter hoist operations (HHOs) with intubated patients in a physician staffed SAR helicopter service and to identify learning points for future missions.

View Article and Find Full Text PDF

Background: Immune dysregulation is a hallmark of autoimmune diseases of the central nervous system (CNS), characterized by an excessive immune response, and primary CNS tumors (pCNS-tumors) showing a highly immunosuppressive parenchymal microenvironment.

Methods: Aiming to provide novel insights into the pathogenesis of CNS autoimmunity and cerebral tumor immunity, we analyzed the peripheral blood (PB) and cerebrospinal fluid (CSF) of 81 autoimmune limbic encephalitis (ALE), 148 relapsing-remitting multiple sclerosis (RRMS), 33 IDH-wildtype glioma, 9 primary diffuse large B cell lymphoma of the CNS (CNS-DLBCL), and 110 controls by flow cytometry (FC). Additionally, an in-depth immunophenotyping of the PB from an independent cohort of 20 RRMS and 18 IDH-wildtype glioblastoma patients compared to 19 controls was performed by FC combined with unsupervised computational approaches.

View Article and Find Full Text PDF

Objective: The COVID-19 pandemic initiated public health measures, impacting mental health and exacerbating disordered eating behaviours (DEB). This study aims to fill gaps in understanding DEB in the general population during the pandemic, emphasising gender dynamics and the experiences of gender and/or sexual minority (SGM) individuals.

Method: A systematic literature review followed PRISMA guidelines to investigate DEB during the pandemic, focusing on gender-sensitive analyses and SGM populations.

View Article and Find Full Text PDF
Article Synopsis
  • This systematic review with meta-analysis investigates how food addiction (FA) affects weight loss intervention outcomes in individuals who are overweight or obese.
  • It examines 25 studies involving over 4,900 participants, focusing on the relationship between FA, as measured by the Yale Food Addiction Scale, and weight loss success.
  • The findings suggest that while FA presence may not significantly impact weight loss overall, its effects are more pronounced in behavioral interventions and among diverse ethnic groups, indicating a need for further research on the interaction between FA and mental health or environmental factors.
View Article and Find Full Text PDF
Article Synopsis
  • The study analyzes hospital data on malignant gliomas in Germany from 2019 to 2022, highlighting the need for more comprehensive data on treatment methods and outcomes.
  • Out of 101,192 cases, 26.9% involved neurosurgical tumor removal, with the majority using advanced techniques like microsurgery and fluorescence guidance.
  • The overall hospital mortality rate was 2.7%, with higher mortality in patients over 65, while using fluorescence-guided procedures and intraoperative monitoring improved survival chances.
View Article and Find Full Text PDF
Article Synopsis
  • Neurooncological patients often struggle with high levels of psychological distress that can negatively affect their treatment, quality of life, and survival rates, but they rarely receive adequate psycho-oncological support.
  • In a study of 512 patients with malignant brain tumors, researchers found that increased distress significantly indicated a need for psycho-oncological treatment, especially during primary diagnosis and tumor recurrence.
  • Younger patients and females showed higher levels of distress, while having a partner or being professionally active helped reduce the need for psycho-oncological support, highlighting the importance of involving caregivers early on in treatment.
View Article and Find Full Text PDF
Article Synopsis
  • The study assessed the effects of three types of transcranial electrical stimulation (tES) on peripheral vision in glaucoma patients using a double-masked, placebo-controlled approach with 35 participants.
  • Results showed that anodal transcranial direct current stimulation (a-tDCS) significantly improved visual detection accuracy and electrophysiological measures (signal-to-noise ratio and latency) compared to sham stimulation, while other tES methods (tACS and tRNS) did not show significant improvements.
  • The findings indicate a-tDCS can enhance vision measures in glaucoma patients, but the overall changes observed were minimal, suggesting further research is needed to explore its effectiveness.
View Article and Find Full Text PDF

Daily rehabilitation after burn injury is vital for prevention of function-limiting contractures. However, adherence to prescribed therapy following acute burn hospitalization has historically been low and not well-studied. Studies involving virtual reality technology have demonstrated an association with improved functional outcomes in burn therapy.

View Article and Find Full Text PDF

Clinical imaging uses a variety of medical imaging techniques to diagnose and monitor diseases, injuries and other health conditions. These include X‑ray images, computed tomography (CT), magnetic resonance imaging (MRI) and ultrasound. These procedures are used to make accurate diagnoses and plan the best possible treatment for patients.

View Article and Find Full Text PDF

Proton therapy administers a highly conformal dose to the tumour region, necessitating accurate prediction of the patient's 3D map of proton relative stopping power (RSP) compared to water. This remains challenging due to inaccuracies inherent in single-energy computed tomography (SECT) calibration. Recent advancements in spectral x-ray CT (xCT) and proton CT (pCT) have shown improved RSP estimation compared to traditional SECT methods.

View Article and Find Full Text PDF

Background: The medical coding of radiology reports is essential for a good quality of care and correct billing, but at the same time a complex and error-prone task.

Objective: To assess the performance of natural language processing (NLP) for ICD-10 coding of German radiology reports using fine tuning of suitable language models.

Material And Methods: This retrospective study included all magnetic resonance imaging (MRI) radiology reports acquired at our institution between 2010 and 2020.

View Article and Find Full Text PDF

Purpose: To investigate the predictive ability of individual Caries Risk Assessments (CRA) regarding oral factors supplemented with social factors in relation to caries outcome in preschool children. Furthermore, to assess various models of CRA with oral and social factors included, aiming to identify the most suitable models for different age groups.

Methods: The design is a retrospective registry-based cohort study.

View Article and Find Full Text PDF

Background: Glaucoma patients with irreversible visual field loss often experience decreased quality of life, impaired mobility, and mental health challenges. Perceptual learning (PL) and transcranial electrical stimulation (tES) have emerged as promising interventions for vision rehabilitation, showing potential in restoring residual visual functions. The Glaucoma Rehabilitation using ElectricAI Transcranial stimulation (GREAT) project aims to investigate whether combining PL and tES is more effective than using either method alone in maximizing the visual function of glaucoma patients.

View Article and Find Full Text PDF