Karol Wiśniewski

ORCID: 0000-0001-8736-0305
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About
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Research Areas
  • Intracranial Aneurysms: Treatment and Complications
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Neurosurgical Procedures and Complications
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Cerebrovascular and Carotid Artery Diseases
  • Vascular Malformations Diagnosis and Treatment
  • Glioma Diagnosis and Treatment
  • Meningioma and schwannoma management
  • Cerebrospinal fluid and hydrocephalus
  • S100 Proteins and Annexins
  • Head and Neck Surgical Oncology
  • Facial Nerve Paralysis Treatment and Research
  • Brain Metastases and Treatment
  • Cancer, Hypoxia, and Metabolism
  • Trigeminal Neuralgia and Treatments
  • Craniofacial Disorders and Treatments
  • Cardiac Arrest and Resuscitation
  • Trauma and Emergency Care Studies
  • Moyamoya disease diagnosis and treatment
  • Bone Tumor Diagnosis and Treatments
  • Acute Ischemic Stroke Management
  • Aortic aneurysm repair treatments
  • Fetal and Pediatric Neurological Disorders
  • Sleep and related disorders
  • Neurofibromatosis and Schwannoma Cases

Medical University of Lodz
2015-2025

The Royal Melbourne Hospital
2023-2024

Lodz University of Technology
2022-2024

Rady Children's Hospital-San Diego
2022-2024

University of California, San Diego
2022-2024

Western University
2024

Medical University of Lublin
2018-2019

OBJECTIVE The pathophysiology of delayed cerebral ischemia (DCI) is not fully elucidated. lack accurate diagnostic tools increases the probability diagnosis and timely treatment. authors assessed relationship 8-iso-prostaglandin F 2α (F2-IsoP) oxidative stress biomarkers, nitric oxide synthase 3 (NOS3) nicotinamide adenine dinucleotide phosphate (NADPH), with DCI after aneurysmal subarachnoid hemorrhage (aSAH). METHODS 65 aSAH patients for F2-IsoP, NOS3, NADPH concentrations using commercial...

10.3171/2024.9.jns241068 article EN Journal of neurosurgery 2025-01-01

Abstract Background The internal venous system of the brain is a crucial anatomical landmark during accesses to third ventricle through foramen Monro. Many classifications based on radiological assessment have been developed, but they tend be descriptive and do not highlight favorable variants. aim our study was create morphometric measurements facilitate preoperative decision-making regarding access tumors. Methods We conducted an analysis 119 MRI scans with SWI sequence using BrainLab...

10.1007/s00701-025-06431-9 article EN cc-by Acta Neurochirurgica 2025-01-24

Abstract There is an increased risk of cerebrovascular accidents (CVA) in individuals with PHACES, yet the precise causes are not well understood. In this analysis, we aimed to examine role arteriopathy PHACES syndrome as a potential contributor CVA. We analyzed clinical and radiological data from 282 patients suspected syndrome. features, including presence infantile hemangioma features based on magnetic resonance angiography or computed tomography angiography, according Garzon criteria. To...

10.1038/s41598-024-55345-6 article EN cc-by Scientific Reports 2024-03-02

INTRODUCTION: Dural tenting sutures are a well-known neurosurgical technique. However, their use in preventing extradural hematomas (EDHs) lacks evidence-based support. For that reason, we deemed it necessary to evaluate this technique an evidence–based manner. METHODS: This is report of randomized, multi-center, investigator- and participant-blinded, controlled interventional non-inferiority trial with 1:1 allocation (NCT03658941). We included adults undergoing elective, supratentorial...

10.1227/neu.0000000000003360_1343 article EN Neurosurgery 2025-03-14

We aimed to identify independent risk factors of 30-day mortality in patients with surgically treated spontaneous supratentorial intracerebral hemorrhage (ICH), validate the Surgical Swedish ICH (SwICH) score within Polish healthcare system, and compare SwICH score.

10.1016/j.wneu.2024.03.172 article EN cc-by-nc World Neurosurgery 2024-04-05

We have estimated the largest meteoroids present in major meteor showers from observations conducted between 2019-2022 by Geostationary Lightning Mapper (GLM) instrument on GOES-R satellites. Our integrated time area products for Leonids, Perseids and eta Aquariids are of order 5 × 1010 km2 hours. compute photometric masses shower fireballs using approach Vojáček et al. (2022) to correct narrow-band GLM luminosity bolometric apply luminous efficiency relation Ceplecha & McCrosky (1976) at...

10.1016/j.icarus.2024.116118 article EN cc-by-nc Icarus 2024-05-09

Background: The objective of our project was to identify a late recanalization predictor in ruptured intracranial aneurysms treated with coil embolization. This goal achieved by means statistical analysis followed computational fluid dynamics (CFD) porous media modelling approach. Porous CFD simulated the hemodynamics within aneurysmal dome after coiling. Methods: Firstly, retrospective single center 66 subarachnoid hemorrhage patients conducted. authors assessed morphometric parameters,...

10.3390/jcm10071348 article EN Journal of Clinical Medicine 2021-03-24

ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Bobeff E, Wiśniewski K, Papierz W, Stefańczyk L, Jaskólski D. Three cases of ectopic sphenoid sinus pituitary adenoma. Folia Neuropathologica. 2017;55(1):60-66. doi:10.5114/fn.2017.66714. APA Bobeff, E., Wiśniewski, K., Papierz, W., Stefańczyk, L., & Jaskólski, (2017). Neuropathologica, 55(1), 60-66. https://doi.org/10.5114/fn.2017.66714 Chicago Ernest Jan, Karol Wielisław Ludomir and Dariusz Jan Jaskólski....

10.5114/fn.2017.66714 article EN cc-by-nc-sa Folia Neuropathologica 2017-01-01

We present a case of 29-year-old male with calcifying pseudoneoplasm the neuraxis (CAPNON) located in region foramen magnum, treated successfully by complete resection. After 2-year follow-up patient remains recurrence free.Clinical and histopathological characterization CAPNON is provided special emphasis on intraoperative neuroradiological features lesion.

10.3109/02688697.2015.1039491 article EN British Journal of Neurosurgery 2015-06-29

The aim of our study was to identify risk factors for recanalization 6 months after coil embolization using clinical data followed by computational fluid dynamics (CFD) analysis. Methods: Firstly, 184 patients treated with were analyzed retrospectively. Secondly, aneurysm models high/low generated based on ROC curves and their cut-off points. Afterward, CFD utilized validate the results. Results: In multivariable analysis, filling during first an independent factor whilst packing density a...

10.3390/jpm11080793 article EN Journal of Personalized Medicine 2021-08-14

Background Intracranial space is divided into three compartments by the falx cerebri and tentorium cerebelli. We assessed whether cerebrospinal fluid (CSF) distribution evaluated a specifically developed deep-learning neural network (DLNN) could assist in quantifying mass effect. Methods Head trauma CT scans from high-volume emergency department between 2018 2020 were retrospectively analyzed. Manual segmentations of intracranial CSF served as ground truth to develop DLNN model automate...

10.3389/fnins.2024.1341734 article EN cc-by Frontiers in Neuroscience 2024-02-19

Glioblastoma, a highly aggressive brain tumor, poses significant treatment challenges. A deeper investigation into its molecular complexity is essential for the identification of novel prognostic biomarkers and therapeutic strategies, potentially improving patient outcomes in terms survival quality life. While nuclear DNA mutations have been extensively studied, role mitochondrial (mtDNA) mutations, specifically D-loop region, remains poorly understood. This prospective case-control study...

10.3390/ijms25084334 article EN International Journal of Molecular Sciences 2024-04-14

Abstract Delayed cerebral ischemia (DCI) is a serious, life-threatening, complication affecting patients who have survived the initial bleeding from ruptured intracranial aneurysm. Due to challenging diagnosis, potential DCI prognostic markers should be of value in clinical practice. According recent reports isoprostanes and red blood cell distribution (RDW) showed promising this respect. We conducted prospective study 27 aSAH control group (n = 8). All were treated within first day...

10.1038/s41598-024-61956-w article EN cc-by Scientific Reports 2024-05-17

Giant intracerebral aneurysms (GIA) comprise up to 5 % of all intracranial aneurysms. The indirect surgical strategy, which leaves the GIA untouched but reverses blood flow by performing a bypass in combination with proximal parent artery occlusion is useful method achieve spontaneous aneurysm occlusion. goal this study was assess utility computational fluid dynamics (CFD) preoperative treatment planning. We hypothesise that CFD simulations will predict results. A fluid-structure interaction...

10.1016/j.compbiomed.2024.109053 article EN cc-by-nc Computers in Biology and Medicine 2024-08-31

The Flow Diverter is one of the methods used in treatment a fusiform aneurysm. While this method popular treating anomalies cerebral vasculature, it not commonly aortic aneurysms. numerical simulation patient-specific model abdominal aortal aneurysm allowed us to investigate and visualize hemodynamics blood before after stent implantation. Our custom software (updated version MeMoS) was reproduce vessel geometry on basis imported DICOM image sets. flow modeled as pulsatile with non-Newtonian...

10.1016/j.bbe.2022.02.008 article EN cc-by-nc-nd Journal of Applied Biomedicine 2022-01-01
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