Publications by authors named "Spiegel G"

Article Synopsis
  • The study aimed to identify the optimal sizes for middle cerebral artery (MCA) bifurcation aneurysms that are most suitable for treatment with the Woven EndoBridge (WEB) device, focusing on aneurysm width and neck dimensions.
  • Using a large retrospective database, the researchers analyzed unruptured MCA bifurcation aneurysms and established ideal cutoff values of 6.1 mm for width and 4.6 mm for neck size regarding treatment effectiveness.
  • Findings indicated that aneurysms smaller than these cutoff values had significantly higher rates of occlusion (93% for width and 90% for neck) and lower retreatment rates compared to larger aneurysms, highlighting the importance of
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Article Synopsis
  • - The study aimed to create a predictive calculator to determine the chances of achieving adequate occlusion (Raymond-Roy classification 1 or 2) when using the woven endobridge (WEB) device for intracranial aneurysms, drawing from a large dataset.
  • - Analyzed data from 356 patients across 30 centers worldwide revealed that larger aneurysm neck size and partial thrombosis were linked to lower chances of successful occlusion, while the calculator showed good predictive accuracy.
  • - The newly developed tool offers a valuable resource for clinicians to better estimate the success of using the WEB device in treating intracranial aneurysms, helping to enhance patient care.
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  • - The Woven EndoBridge (WEB) device is used for treating wide-neck intracranial bifurcation aneurysms smaller than 10 mm, but there's limited data on its effectiveness for larger aneurysms.
  • - A study reviewed data from the WorldWide WEB Consortium involving 898 patients to compare outcomes between small and large aneurysms, using propensity score matching (PSM) for accuracy.
  • - Results showed that large aneurysms had significantly lower rates of adequate occlusion and higher rates of retreatment compared to small aneurysms, suggesting that these findings could influence treatment choices and patient discussions in the future.
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Article Synopsis
  • The Woven EndoBridge (WEB) device is being studied as a new treatment for intracranial aneurysms, particularly its effectiveness for off-label uses which require further investigation.
  • A study of 162 patients utilizing machine learning developed predictive models for successful occlusion after off-label WEB treatment, analyzing various factors linked to outcomes.
  • Findings indicated that larger neck diameter and the presence of daughter sacs significantly predicted poorer occlusion results, emphasizing the need for further validation to refine patient selection and treatment strategies.
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  • Researchers aimed to identify factors predicting aneurysm occlusion and retreatment following WEB embolization due to limited existing studies.
  • The study reviewed data from 763 patients across 30 institutions, finding a 65.1% complete occlusion rate at follow-up and a 7.3% retreatment rate.
  • Key negative predictors for complete occlusion included smoking history, larger aneurysm size, and wall branch presence, while intraprocedural occlusion significantly improved long-term outcomes.
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  • A study was conducted to address the disparity in access to mechanical thrombectomy (MT) in low- to middle-income countries by organizing team-based workshops aimed at improving knowledge and skills related to MT for stroke treatment.
  • The workshops, held in Jamaica and the Dominican Republic, included didactic and hands-on training for neurointerventional teams, resulting in significant improvements in test scores and practical skills in managing strokes due to large vessel occlusion.
  • Feedback from participants indicated high satisfaction rates, with a majority believing that the training would positively impact their clinical practice.
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  • This study examined how taking antiplatelet medications before and after procedures affects the risk of thromboembolic complications (TECs) in patients treated with the Woven EndoBridge (WEB) device for specific brain aneurysms.
  • It analyzed data from multiple centers, involving a total of 1412 patients, to determine if antiplatelet drugs reduce the likelihood of TECs, finding that those who took them before the procedure had a significantly lower risk.
  • The study concluded that while preprocedural antiplatelet use significantly lowers the chances of TECs, the effect does not carry over when the medication is taken post-procedure.
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Background: The Woven EndoBridge (WEB) devices have been used for treating wide neck bifurcation aneurysms (WNBAs) with several generational enhancements to improve clinical outcomes. The original device dual-layer (WEB DL) was replaced by a single-layer (WEB SL) device in 2013. This study aimed to compare the effectiveness and safety of these devices in managing intracranial aneurysms.

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Introduction: Injury and subsequent thrombosis of the cerebral venous sinuses may be caused by closed head injuries secondary to a variety of different mechanisms. Skull fractures can lacerate or otherwise disrupt adjacent dural sinuses. The sequelae of such injuries may include thrombosis and either partial or total occlusion of the sinus, ultimately resulting in significant venous congestion.

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Article Synopsis
  • The Woven EndoBridge (WEB) device is effective for treating intracranial aneurysms, yet the postoperative use of aspirin shows varied practices among clinicians.
  • A multicenter study involving 1492 patients compared outcomes between those who took aspirin post-surgery and those who didn't, revealing that aspirin users had better functional outcomes and lower mortality rates but higher rates of retreatment.
  • The findings suggest that while aspirin may improve recovery and reduce death rates after WEB treatment, it also increases the likelihood of needing additional procedures, indicating a need for further research on optimal postoperative care.
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Purpose: We investigated attitudes and practices of healthcare professionals (HCPs) to medicinal cannabis (MC) and complementary and integrative medicine (CIM), including individual therapies, such as acupuncture, massage, herbs, dietary supplements, nutrition and exercise. We explored whether healthcare occupation influenced attitudes to CIM and MC; referral pathways for advice on CIM; and interest in a pharmacy service to evaluate herbs and supplements.

Methods: Cross-sectional survey.

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Introduction: Middle meningeal artery embolization (MMAE) has emerged as a promising new treatment for patients with chronic subdural hematomas (cSDH). Its efficacy, however, upon the subtype with a high rate of recurrence-septated cSDH-remains undetermined.

Methods: From our prospective registry of patients with cSDH treated with MMAE, we classified patients based on the presence or absence of septations.

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Background: Chronic subdural hematoma (CSDH) is an increasingly prevalent disease in the aging population. Patients with CSDH frequently suffer from concurrent vascular disease or develop secondary thrombotic complications requiring antithrombotic treatment.

Objective: To determine the safety and impact of early reinitiation of antithrombotics after middle meningeal artery embolization for chronic subdural hematoma.

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Purpose: Around three quarters of individuals undergoing chemotherapy self-report multiple symptoms. There is clinical trial evidence of effectiveness for acupuncture for commonly experienced symptoms, and emerging evidence for reflexology, but little is known about the effects of these therapies on multiple symptoms when implemented in a real world setting during active chemotherapy treatment.

Methods: This was a cohort study of participants receiving reflexology and/or acupuncture while attending chemotherapy.

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Background: The direct-to-implant method depends on the quality of the mastectomy flaps and can be used only when the flaps are adequately perfused. Even though the method was designed to be a definitive reconstruction procedure, it has been associated with an increased likelihood that additional operative revision will be required in order to achieve the expected final cosmetic outcome. The authors describe a hybrid prepectoral direct-to-implant method that combines autologous fat grafting in the superior medial pole with immediate reconstruction.

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Background And Purpose: The optimal endovascular stroke therapy (EVT) care delivery structure is unknown. Here, we present our experience in creating an integrated stroke system (ISS) to expand EVT availability throughout our region while maintaining hospital and physician quality standards.

Methods: We identified all consecutive patients with large vessel occlusion acute ischemic stroke treated with EVT from January 2014 to February 2019 in our health care system.

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Objectives: Low-carbohydrate and ketogenic diets are becoming increasingly popular choices for people with type 1 diabetes (T1D) aiming to achieve optimal glycemic control. A carbohydrate-restricted diet in children has been associated with negative health effects including poor linear growth and inadequate bone mineralization. Guidelines for monitoring children and adolescents choosing to follow a carbohydrate-restricted diet do not exist.

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Background And Purpose: Noncontrast head CT and CT perfusion (CTP) are both used to screen for endovascular stroke therapy (EST), but the impact of imaging strategy on likelihood of EST is undetermined. Here, we examine the influence of CTP utilization on likelihood of EST in patients with large vessel occlusion (LVO).

Methods: We identified patients with acute ischemic stroke at 4 comprehensive stroke centers.

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Context: Our pediatric diabetes center initiated insulin pump therapy for more than 250 patients with type 1 diabetes in 2014, but onboarding was inefficient.

Objective: To decrease time from the decision to initiate pump therapy to the ambulatory encounter after pump start (lead time) for new pump users from 132.5 days to less than 110 days within 5 months.

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Introduction Proximal cervical internal carotid artery stenosis greater than 50% merits revascularization to mitigate the risk of stroke recurrence among large-vessel anterior circulation strokes undergoing mechanical thrombectomy. Carotid artery stenting necessitates the use of antiplatelets, and there is a theoretical increased risk of hemorrhagic transformation given that such patients may already have received intravenous thrombolytics and have a significant infarct burden. We investigate the outcomes of large-vessel anterior circulation stroke patients treated with intravenous thrombolytics receiving same-day carotid stenting or selective angioplasty compared to no carotid intervention.

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Elderly stroke patients and aged animals subjected to experimental stroke have significantly worse functional recovery and higher mortality compared to younger subjects. Activation of the peripheral immune system is known to influence stroke outcome. Prior studies have shown that splenectomy reduces ischemic brain injury in young mice.

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Objective: To assess the safety and efficacy of the Pipeline Embolization Device (PED) for endovascular treatment of complex, distal posterior cerebral artery (PCA) aneurysms.

Methods: We conducted a retrospective review of patients who underwent endovascular treatment of complex PCA aneurysms with PED from November 2012 to December 2015. A total of 4 patients were identified and treated.

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Foreign material emboli following cerebral, cardiac, and peripheral catheterizations have been reported since the mid-1990s. Catheter coatings have been frequently implicated. The most recent surge of interest in this phenomenon within the neurointerventional community is associated with procedures using flow-diversion devices for the treatment of cerebral aneurysms.

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De novo intracerebral arteriovenous malformations (AVMs) are exceedingly rare with only seven reported cases in the literature. Although generally considered congenital by nature, the lesions do not manifest themselves clinically until the third or fourth decades of life. However, with the advent of improved imaging modalities and more frequent surveillance, an increasing number of de novo cases are being found challenging the concept AVMs develop in the perinatal/antenatal period.

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