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Total 21 results found since Jan 2013.

The incidence of radiation-induced moyamoya among pediatric brain tumor patients who received photon radiation versus those who received proton beam therapy: a systematic review
AbstractCranial irradiation is associated with several adverse events such as endocrinopathy, growth retardation, neurocognitive impairment, secondary malignancies, cerebral vasculopathy, and potential stroke. The better side effects profile of proton beam therapy compared with that of photon radiation therapy is due to its physical properties, mainly the sharp dose fall-off after energy deposition in the Bragg peak. Despite the better toxicity profile of proton beam therapy, the risk of   moyamoya syndrome still exists. We conducted a systematic review of the existing literature on moyamoya syndrome after receiving crani...
Source: Neurosurgical Review - June 24, 2023 Category: Neurosurgery Source Type: research

Comprehensive Update and Review of Clinical and Imaging Features of SMART Syndrome ADULT BRAIN
SUMMARY: Stroke-like migraine attacks after radiation therapy (SMART) syndrome is a delayed complication of cranial irradiation, with subacute onset of stroke-like symptoms including seizures, visual disturbance, speech impairment, unilateral hemianopsia, facial droop, and aphasia, often associated with migraine-type headache. The diagnostic criteria were initially proposed in 2006. However, the diagnosis of SMART syndrome is challenging because clinical symptoms and imaging features of SMART syndrome are indeterminate and overlap with tumor recurrence and other neurologic diseases, which may result in inappropriate clinic...
Source: American Journal of Neuroradiology - June 8, 2023 Category: Radiology Authors: Ota, Y., Liao, E., Shah, G., Srinivasan, A., Capizzano, A. A. Tags: ADULT BRAIN Source Type: research

Relationship between 7T MR-angiography features of vascular injury and cognitive decline in young brain tumor patients treated with radiation therapy
ConclusionsArterial volume is reduced with increasing CMB presence and is influenced by the total brain volume exposed to radiation. This work highlights the potential use of vascular-derived metrics as non-invasive markers of treatment-induced injury and cognitive impairment in pediatric brain tumor patients.
Source: Journal of Neuro-Oncology - April 24, 2021 Category: Cancer & Oncology Source Type: research

Stroke-Like Migraine Attacks After Radiation Therapy (SMART) Syndrome: A Comprehensive Review
AbstractPurpose of ReviewSMART syndrome is a delayed complication of cranial irradiation that can be misconstrued as tumor recurrence or some other intracranial neurological disease. Recognition of this clinical syndrome is imperative as it can obviate the need for invasive diagnostic testing and can provide reassurance to both the patient and their loved ones.Recent FindingsSMART syndrome is generally considered a reversible clinical syndrome; however, neurological deficits may become permanent. Pathophysiology of SMART syndrome may involve cerebrovascular autoregulation impairment, neuronal dysfunction leading to trigemi...
Source: Current Pain and Headache Reports - March 24, 2021 Category: Neurology Source Type: research

Lacunar stroke as a very late complication of radiotherapy: value of nuclear medicine techniques.
CONCLUSIONS: The reappearance of neurological symptoms years after radiotherapy of a brain neoplasm poses a diagnostic dilemma. Current diagnostic techniques are very accurate but present false positives. The various nuclear medicine techniques, in particular PET-CT 11C-methionine, are a diagnostic aid. With the presentation of this case we intend to draw attention to one of the late complications of radiation therapy and the various differential diagnoses. Diagnostic and therapeutic advances have increased the life expectancy of cancer patients, so these late complications are expected to be more frequent. PMID: 3331...
Source: Revista de Neurologia - December 16, 2020 Category: Neurology Authors: Ortega-Valín F, Jiménez-Bonilla JF, García-Hernández A, Rodríguez-Rodriguez E, Sánchez-Salmón E Tags: Rev Neurol Source Type: research

Rate of radiation-induced microbleed formation on 7T MRI relates to cognitive impairment in young patients treated with radiation therapy for a brain tumor.
CONCLUSIONS: Treatment with RT during youth is associated with the chronic development of CMBs that evolve with memory impairment over time. PMID: 32966846 [PubMed - as supplied by publisher]
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - September 19, 2020 Category: Radiology Authors: Morrison MA, Mueller S, Felton E, Jakary A, Stoller S, Avadiappan S, Yuan J, Molinaro AM, Braunstein S, Banerjee A, Hess CP, Lupo JM Tags: Radiother Oncol Source Type: research

Stroke-like migraine attacks after radiation therapy (SMART) syndrome —a case series and review
ConclusionOur extensive review favors MRI, CT, and prolonged EEG monitoring to rule out other differentials and showed that initiation of corticosteroid therapy and antiepileptic treatment were helpful in the resolution of symptoms and prevent recurrences. Therefore, future studies should be focused on early identification and management guidelines for SMART syndrome.
Source: Neurological Sciences - July 12, 2020 Category: Neurology Source Type: research

Cancer and Cerebrovascular Disease
AbstractPurpose of ReviewTo review the latest information about the interactions between cancer and cerebrovascular disease.Recent FindingsAdditional data support the finding that both ischemic and hemorrhagic stroke are important complications of cancer or its treatment. Reperfusion therapy is being given successfully to patients with stroke complicating cancer.SummaryHemorrhagic stroke may occur with metastatic disease to the brain, coagulopathies from cancer, in particular leukemia, or as complications of chemotherapy. Ischemic stroke also may be a complication of metastatic disease with local invasion of vessels, a pro...
Source: Current Neurology and Neuroscience Reports - August 22, 2019 Category: Neuroscience Source Type: research

NAMPT as a Dedifferentiation-Inducer Gene: NAD+ as Core Axis for Glioma Cancer Stem-Like Cells Maintenance
Conclusion and Perspectives Gliomas are the most prevalent primary brain cancer in adults and include a broad category of tumors including astrocytoma, oligodendroglioma, and GBM. Regardless of tumor aggressiveness, malignancy, and infiltration, these glia-derived tumors rarely exceed a median survival time of 12–14 months. Driven by the infiltrative nature of these tumors, the clinical approach is difficult and relapses often occur with fatal consequences. These unsuccessful attempts to control glioma's fate have fostered research looking for more effective therapies. (GSCs) are a small subset of CD133&#...
Source: Frontiers in Oncology - May 2, 2019 Category: Cancer & Oncology Source Type: research

Surgical Management of Deep-Seated Metastatic Brain Tumors Using Minimally Invasive Approaches
Conclusion This minimally invasive approach can be used to achieve extensive resection with minimal morbidity for arguably the highest risk metastatic brain tumors. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Journal of Neurological Surgery Part A: Central European Neurosurgery - March 19, 2019 Category: Neurosurgery Authors: Gassie, Kelly Alvarado-Estrada, Keila Bechtle, Perry Chaichana, Kaisorn L. Tags: Original Article Source Type: research

Study unveils a blueprint for treating a deadly brain tumor
(NIH/National Institute of Neurological Disorders and Stroke) In a study of mice and human brain tumors researchers at the University of the Michigan, Ann Arbor, searched for new treatments by exploring the reasons why some patients with gliomas live remarkably longer than others. The results suggested that certain patients' tumor cells are less aggressive and much better at repairing DNA than others but are difficult to kill with radiation. The researchers then showed that combining radiation therapy with cancer drugs designed to block DNA repair may be an effective treatment strategy.
Source: EurekAlert! - Cancer - February 19, 2019 Category: Cancer & Oncology Source Type: news

Stroke like migraine attacks after radiation therapy (SMART) syndrome a case series of three patients (P6.179)
Conclusions:Our patients represent the first case series of SMART syndrome in a single institution. Our cases share similarities to the prior reports in the literature and highlights the clinical and MRI triad of acute onset headaches, neurological deficits and MRI findings of transient contrast enhancement of the cortex with white matter sparing in a previous radiation field.Disclosure: Dr. rauf has nothing to disclose. Dr. Boulter has nothing to disclose. Dr. Imitola has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: Rauf, Y., Boulter, D., Imitola, J. Tags: Neurologic Complications of Cancer Source Type: research

Updates in outcomes of stereotactic radiation therapy in acromegaly
Conclusion Although the use of radiotherapy in patients with acromegaly has decreased with advances in medical treatments, it remains an effective treatment option after unsuccessful surgery and/or resistance or unavailability of medical therapy. Long-term studies evaluating secondary morbidity and mortality rate after the new stereotactic techniques are needed, in order to evaluate their potential brain-sparing effect.
Source: Pituitary - February 15, 2017 Category: Endocrinology Source Type: research

Ntox-11. recurrent episodes of stroke-like migraine attacks after radiation therapy (smart) syndrome in adults
We report two cases of multiply-recurrent SMART syndrome, one autopsy-documented. Case 1 is a 46 year old woman with an atypical meningioma treated with resection and radiation who presented sixteen months after completion of radiation with sudden onset hemiparesis and dysarthria. Brain MRI showed the typical gyriform enhancement seen in SMART syndrome. No other attributable disorders were found on extensive workup, and both symptoms and radiographic abnormalities resolved over several weeks without further therapies. Six months later she again presented with identical symptoms and MRI findings. Incomplete resolution ...
Source: Neuro-Oncology - November 6, 2016 Category: Cancer & Oncology Authors: Mohler, A., Kleinschmidt-DeMasters, B. K., Damek, D. Tags: NEUROTOXICITY OF THERAPY Source Type: research

Unusual case of recurrent SMART (stroke-like migraine attacks after radiation therapy) syndrome
Ramnath Santosh Ramanathan, Gayathri Sreedher, Konark Malhotra, Zain Guduru, Deeksha Agarwal, Mary Flaherty, Timothy Leichliter, Sandeep RanaAnnals of Indian Academy of Neurology 2016 19(3):399-401Stroke-like migraine attacks after radiation therapy (SMART) syndrome is a rare delayed complication of cerebral radiation therapy. A 53-year-old female initially presented with headache, confusion and left homonymous hemianopia. Her medical history was notable for cerebellar hemangioblastoma, which was treated with radiation in 1987. Her initial brain MRI (magnetic resonance imaging) revealed cortical enhancement in the right te...
Source: Annals of Indian Academy of Neurology - July 24, 2016 Category: Neurology Authors: Ramnath Santosh Ramanathan Gayathri Sreedher Konark Malhotra Zain Guduru Deeksha Agarwal Mary Flaherty Timothy Leichliter Sandeep Rana Source Type: research