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Early-Delayed Radiotoxicity Associated With Stereotactic Radiation Therapy Following a Daily 6 Gy × 5 (30 Gy) Protocol for Presumed Canine Intracranial Meningiomas.
Vet Comp Oncol
January 2025
Southfields Veterinary Specialists, Basildon, UK.
Early-delayed side effects (EDSEs) following treatment of canine intracranial meningiomas with 1-3-fraction stereotactic radiation therapy (SRT) can cause worsening neurologic signs, and one potential method of mitigating this toxicity is reducing the dose per fraction. Twenty dogs with imaging-diagnosed intracranial meningiomas and telephone follow-up of at least 6 months received a protocol of 6 Gy × 5, daily (30 Gy). A 'possible EDSE' was defined as mental dullness, neurologic exacerbation of existing neurologic signs or new neurologic signs occurring within 1-4 months of completing SRT, regardless of the response to steroids and even if an MRI was not performed.
View Article and Find Full Text PDFBenchmarking the Efficacy of Salvage Systemic Therapies for Recurrent Meningioma: A RANO Group Systematic Review and Meta-analysis to Guide Clinical Trial Design.
Neuro Oncol
January 2025
Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA.
Background: Despite advances in our understanding of the molecular underpinnings of meningioma progression and innovations in systemic and local treatments, recurrent meningiomas remain a substantial therapeutic challenge. The objective of this systematic review and meta-analysis is to provide a historical baseline, contemporary analysis, and propose a "rate of probable interest" to inform future clinical trial design and development on behalf of the RANO meningioma group.
Methods: PubMed, ClinicalTrials.
Knowledge discovery from database: MRI radiomic features to assess recurrence risk in high-grade meningiomas.
BMC Med Imaging
January 2025
Department of Neurosurgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
Purpose: We used knowledge discovery from radiomics of T2-weighted imaging (T2WI) and contrast-enhanced T1-weighted imaging (T1C) for assessing relapse risk in patients with high-grade meningiomas (HGMs).
Methods: 279 features were extracted from each ROI including 9 histogram features, 220 Gy-level co-occurrence matrix features, 20 Gy-level run-length matrix features, 5 auto-regressive model features, 20 wavelets transform features and 5 absolute gradient statistics features. The datasets were randomly divided into two groups, the training set (~ 70%) and the test set (~ 30%).
AlkaPhos: a novel fluorescent probe as a potential point-of-care diagnostic tool to estimate recurrence risk of meningiomas.
Neurosurg Rev
January 2025
Department of Neurosurgery, Saarland University Medical Center, Homburg, Germany.
Deletion of the short arm of chromosome 1 (1p) increases recurrence rates in meningiomas by up to 33%, regardless of tumor grade, correlating with absence of intracellular alkaline phosphatase enzyme activity. Current screening methods for 1p deletion like fluorescence in situ hybridization (FISH) and loss of heterozygosity (LOH) analysis are resource-intensive. This study evaluated AlkaPhos, a novel fluorescent probe, for detecting alkaline phosphatase in meningioma cells and compared findings with FISH, LOH, and histochemical analysis.
View Article and Find Full Text PDFBlood transfusions in craniotomy for tumor resection: Incidence, risk factors, and outcomes.
J Clin Neurosci
February 2025
Section of Neurosurgery, Department of Surgery, Aga Khan University, Karachi, Pakistan. Electronic address:
Background: Blood transfusions (BT) are often needed in neurosurgical procedures, especially craniotomies for tumor resections, due to risks of anemia, ischemic brain injury, and hemorrhage. However, BT may increase the risk of perioperative complications. This study aimed to determine the incidence, associated factors, and outcomes of BT in patients undergoing craniotomy for intracranial tumor resection.
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