Publications by authors named "Spencer Poiset"

Purpose: Glioblastoma (GBM) is the most common primary brain cancer in adults with a very poor prognosis. Metabolic drivers of tumorigenesis are highly relevant within the central nervous system, where glucose is the critical source of energy. The impact of obesity on survival outcomes in patients with GBM is not well established.

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  • Local treatment options for recurrence of pancreatic adenocarcinoma are limited, with median survival times of 9-13 months, but MRI-guided stereotactic body radiation therapy (MRgSBRT) may improve outcomes by allowing higher radiation doses while protecting normal tissue.
  • In a study involving 15 patients treated with MRgSBRT, the median overall survival after recurrence was 14.1 months, with local control rates of 92.3% and 83.9% at 6 and 12 months, respectively.
  • The treatment showed manageable side effects, with 47% experiencing mild acute gastrointestinal toxicity and 31% facing chronic gastrointestinal issues, but no severe
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Objective: Treatment of craniopharyngioma typically entails gross total resection (GTR) or subtotal resection with adjuvant radiation (STR-RT). We analyzed outcomes in adults with craniopharyngioma undergoing GTR versus STR-RT.

Methods: This retrospective study enrolled 115 patients with craniopharyngioma in 5 institutions.

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  • This study investigates the effectiveness and safety of MR-guided stereotactic body radiotherapy (MRgSBRT) for treating adrenal gland metastases, highlighting its clinical outcomes and toxicity levels.
  • A total of 255 patients with 269 adrenal metastases were analyzed, showing high local progression-free survival rates (94% at 1 year) and minimal severe toxicity (only 0.8% grade 3+ events).
  • The findings suggest that frequent dose adaptations are crucial for optimal outcomes, with improved results associated with higher radiation doses and single-fraction treatments, establishing benchmarks for future research.
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Background: Glioblastoma (GBM) is the most common primary malignant brain tumor in adults. Despite enormous research efforts, GBM remains a deadly disease. The standard-of-care treatment for patients with newly diagnosed with GBM as per the National Cancer Comprehensive Cancer Network (NCCN) is maximal safe surgical resection followed by concurrent chemoradiation and maintenance temozolomide (TMZ) with adjuvant tumor treating fields (TTF).

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Background: Hemangioblastoma of the central nervous system is an uncommon benign neoplasm, with about 25% of cases in patients with von Hippel-Lindau disease. The incidence of metastasis is rare, particularly in patients without von Hippel-Lindau disease. We report a case of hemangioblastoma with leptomeningeal dissemination as a late recurrence.

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Background And Objective: With a phase 3 clinical trial (EF-32, ClinicalTrials.gov: NCT04471844) currently underway examining the potential benefit of concurrent chemoradiation and tumor treating fields (TTFields) for patients with glioblastoma (GBM), we present the following narrative review to highlight the current evidence that supports this approach. The current management paradigm for GBM includes maximal safe surgical resection followed by concurrent chemoradiation with further temozolomide (TMZ) and TTFields used as maintenance therapy.

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Immune checkpoint inhibitors (ICIs) have led recent advances in the field of cancer immunotherapy improving overall survival in multiple malignancies with abysmal prognoses prior to their introduction. The remarkable efficacy of ICIs is however limited by their potential for systemic and organ specific immune-related adverse events (irAEs), most of which present with mild to moderate symptoms that can resolve spontaneously, with discontinuation of therapy or glucocorticoid therapy. Cardiac irAEs however are potentially fatal.

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Heterotopic ossification is the development of mature lamellar bone in soft tissues. Heterotopic ossification can occur in up to 23% of patients after amputation. Heterotopic ossification is often painful, causing significant dysfunction.

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Thermoplastic masks are commonly used in radiation therapy to immobilize a patient's head and neck during treatment. They are primarily composed of non-toxic polyester compounds that can be manipulated with heat to mold the shape of a patient's head and neck. There is little previously reported evidence of these masks causing allergic contact dermatitis.

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 A common query by patients undergoing distal radius fracture (DRF) repair is when (s)he can resume driving postoperatively. A prospective cohort analysis was performed to assess fracture and patient factors on a patient's self-reported ability to return to driving to better inform patients and surgeons.  Consecutive patients undergoing DRF repair with locking volar plate were enrolled.

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 The effect of postoperative dressing and splinting after distal radius fracture (DRF) open reduction internal fixation (ORIF) is not well understood. A prospective cohort analysis was performed to assess differences in functional and radiographic outcomes with the use of plaster splinting or soft dressing following DRF ORIF.  All patients undergoing DRF ORIF with locking volar plates were consecutively enrolled.

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