Publications by authors named "Gessler F"

Background: Temporal lobe epilepsy (TLE) is the most common form of drug-resistant epilepsy, often associated with hippocampal sclerosis (HS), which involves selective neuronal loss in the Cornu Ammonis subregion 1 CA1 and CA4 regions of the hippocampus. Granule cells show migration and mossy fiber sprouting, though the mechanisms remain unclear. Microglia play a role in neurogenesis and synaptic modulation, suggesting they may contribute to epilepsy.

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Objective: Although the operating theatre offers unique didactic opportunities, it can be perceived as an uncomfortable environment by medical students due to the lack of theatre etiquette, time pressure and parallel work of different disciplines. We investigated whether virtual reality (VR) training can significantly reduce some of these fears and improve surgical education for medical students.

Methods: We randomly divided a group of 24 medical students and investigated the effects of a VR application (digitally recreated operating theatre tour) and compared it with currently-in-use written instructions for operational tasks in the operating theatre.

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Purpose: Prophylactic insertion of an external ventricular drainage (EVD) prior to the resection of posterior fossa metastases (PFMs) is a common approach to address postoperative transient and permanent hydrocephalus. However, predicting surgery-related hydrocephalus in the preoperative phase continues to be a challenge. This study aims to analyze the incidence, preoperatively collectable risk factors and necessity of perioperative external ventricular drainage placement after posterior fossa metastasis surgery.

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Background: COVID-19 has attracted global attention primarily because of the severe acute respiratory symptoms associated with it. However, nearly one third of the patients also present with neurologic symptoms. This report describes a case of a previously healthy woman with acute COVID-19 infection, who developed acute facial nerve palsy and rapid progression to coma due to otogenic brain abscess.

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Article Synopsis
  • The study focused on how visual acuity (VA) recovery affects quality of life in patients who underwent surgery for medial sphenoid wing meningioma (SWM).
  • Out of 153 patients, 35% had preoperative vision issues, with a key finding that those with impairments lasting 4 months or less had better postoperative VA improvements.
  • Results suggested that shorter preoperative visual impairment corresponds with better postoperative health and daily activity outcomes, which can assist in preoperative patient counseling and decision-making.
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Return to work after spinal surgery is a crucial factor in the recovery process. It can contribute not only to physical rehabilitation but also to psychological well-being. This study aims to evaluate the rate of return to work following elective lumbar spine surgery and identify predictors that predict failure of return to work.

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The COVID-19 (coronavirus disease) pandemic had a severe impact on public health worldwide. A rare but serious complication after administration of adenoviral vaccines against SARS-CoV-2 (AstraZeneca-Oxford and Johnson & Johnson) is vaccine-induced immune thrombotic thrombocytopenia and thrombosis (VITT), which can lead to serious complications such as cerebral venous sinus thrombosis (CVST). CVST itself can cause subarachnoid hemorrhage (SAH) and/or intracerebral hemorrhage (ICH), leading to high mortality due to herniation of brain parenchyma.

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He, we show that combined use of the EZH2 inhibitor GSK126 and the CDK4/6 inhibitor abemaciclib synergistically enhances antitumoral effects in preclinical GBM models. Dual blockade led to HIF1α upregulation and CalR translocation, accompanied by massive impairment of mitochondrial function. Basal oxygen consumption rate, ATP synthesis, and maximal mitochondrial respiration decreased, confirming disrupted endoplasmic reticulum-mitochondrial homeostasis.

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Background: Brain computed tomography (CT) is an accessible and commonly utilized technique for assessing brain structure. In cases of idiopathic normal pressure hydrocephalus (iNPH), the presence of ventriculomegaly is often neuroradiologically evaluated by visual rating and manually measuring each image. Previously, we have developed and tested a deep-learning-model that utilizes transfer learning from magnetic resonance imaging (MRI) for CT-based intracranial tissue segmentation.

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  • Recent research indicates that removing dead tissue (necrotic tissue) during surgery for ischemic cerebellar stroke may improve recovery more than just removing pressure (decompressive surgery) alone, but optimal procedures and outcomes related to the amount of tissue removed haven't been well-studied.* -
  • This study analyzed data from 91 patients who had surgery for ischemic cerebellar stroke, measuring the volume of infarcted tissue before and after operations, and evaluating functionality at 3 months post-surgery using a standardized ranking scale.* -
  • Results showed that patients who had necrosectomy (removal of necrotic tissue) were significantly more likely to achieve favorable recovery outcomes, with a specific threshold of
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  • Glioblastoma is a highly aggressive brain tumor with a median survival of only 6-9 months after progression, due to factors like molecular pathways and tumor microenvironment.
  • Current treatments like surgery, radiation, and chemotherapy can manage the primary tumor but not effectively prevent relapse, and the role of surgery for recurrent cases is debated.
  • New innovative therapies for recurrent glioblastoma are being developed, including checkpoint inhibitors and CAR T-cell therapy, aimed at improving treatment outcomes.
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The emerging field of cancer neuroscience reshapes our understanding of the intricate relationship between the nervous system and cancer biology; this new paradigm is likely to fundamentally change and advance neuro-oncological care. The profound interplay between cancers and the nervous system is reciprocal: Cancer growth can be induced and regulated by the nervous system; conversely, tumors can themselves alter the nervous system. Such crosstalk between cancer cells and the nervous system is evident in both the peripheral and central nervous systems.

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High-grade gliomas (HGGs) have a poor prognosis and are difficult to treat. This review examines the evolving landscape of endovascular therapies for HGGs. Recent advances in endovascular catheter technology and delivery methods allow for super-selective intra-arterial cerebral infusion (SSIACI) with increasing precision.

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Importance: According to the current American Heart Association/American Stroke Association guidelines, decompressive surgery is indicated in patients with cerebellar infarcts that demonstrate severe cerebellar swelling. However, there is no universal definition of swelling and/or infarct volume(s) available to support a decision for surgery.

Objective: To evaluate functional outcomes in surgically compared with conservatively managed patients with cerebellar infarcts.

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Background incidence of pyogenic spinal infections has increased in recent years. In addition to treating the spinal infection, optimal care also includes identifying the source of the pyogenic spinal infection and the presence of other infections. The aim of this study is to elucidate the prevalence of oral cavity infection (OCI) within this patient cohort.

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Purpose: Chat generative pre-trained transformer (GPT) is a novel large pre-trained natural language processing software that can enable scientific writing amongst a litany of other features. Given this, there is a growing interest in exploring the use of ChatGPT models as a modality to facilitate/assist in the provision of clinical care.

Methods: We investigated the time taken for the composition of neurosurgical discharge summaries and operative reports at a major University hospital.

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Background: Temporal muscle thickness (TMT) on cranial CT scans has recently been identified as a prognostic imaging parameter for assessing a patient's baseline frailty. Here, we analyzed whether TMT correlates with Traumatic brain injury (TBI) severity and whether it can be used to predict outcome(s) after TBI.

Methods: We analyzed the radiological and clinical data sets of 193 patients with TBI who were admitted to our institution and correlated the radiological data with clinical outcomes after stratification for TMT.

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Objective: Outpatient parenteral antimicrobial therapy (OPAT) is a well-established and cost-effective method for improving the efficient use of healthcare resources. However, only a few centres in Germany perform it. Here we analysed OPAT for the treatment of patients with cranial infections in our neurosurgical department.

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Article Synopsis
  • Oncolytic viral (OV) therapies are a new treatment option for hard-to-treat cancers like glioblastoma in the central nervous system but face challenges in effectiveness due to delivery issues and immune responses.
  • The SUMO pathway, which regulates various physiological processes, plays a role in both CNS cancers and viral interactions, making it a target for enhancing OV treatments.
  • The authors provide an overview of the SUMO pathway's impact on CNS malignancies, the current status of OV therapies, and how the SUMO pathway interacts with the viral lifecycle and immune responses.
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While comprising only 2% of all ischemic strokes, cerebellar strokes are responsible for substantial morbidity and mortality due to their subtle initial presentation and the morbidity of posterior fossa swelling. Furthermore, low temporal muscle thickness (TMT) has recently been identified as a prognostic imaging parameter to assess patient frailty and outcome. We analyzed radiological and clinical data sets of 282 patients with cerebellar ischemic stroke.

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  • - The study investigates the outcomes of two surgical techniques for patients with space-occupying cerebellar stroke (SOCS) and neurological decline, comparing suboccipital decompressive craniectomy (SDC) with suboccipital craniotomy and necrosectomy.
  • - Results showed that patients who had necrosectomy had a significantly better functional outcome at discharge and three months later compared to those who received SDC alone, with favorable outcomes at 65.3% versus 27.9% and 41.7% respectively.
  • - No notable differences in mortality or postoperative complications were found between the two surgical approaches, highlighting the need for further research through prospective randomized studies to validate these results.
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Objectives: Seizures and status epilepticus (SE) are frequent complications of acute subdural hematoma (aSDH) associated with increased morbidity and mortality. Therefore, we aimed to evaluate whether invasive subdural electroencephalogram recording leads to earlier seizure detection and treatment initiation in patients with aSDH.

Design: Prospective, single-center, cohort trial.

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  • A study aimed to create clinical scoring systems for patients with cerebellar stroke to predict mortality and outcomes, as no established scores existed before.
  • The research included 531 patients over a period of 13 years across multiple centers in Germany, utilizing logistic regression to identify significant independent predictors for 30-day mortality and unfavorable outcomes.
  • The developed scores highlighted age, Glasgow Coma Scale, stroke volume, and brain stem involvement as critical factors, with specific point assignments indicating varying levels of risk for mortality and negative outcomes within 30 days after the stroke.
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