Publications by authors named "Michelozzi C"
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
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.
Article Synopsis
- - 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.
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.
Article Synopsis
- 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.
Article Synopsis
- 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.
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.
View Article and Find Full Text PDFArticle 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.
Objective: The Woven EndoBridge (WEB) device is an intrasaccular flow disruptor designed for wide-necked bifurcation aneurysms. These aneurysms may require the use of a concomitant stent. The objective of this study was to determine the clinical and radiological outcomes of patients undergoing stent-assisted WEB treatment.
View Article and Find Full Text PDFBackground: Non-ischemic cerebral enhancing (NICE) lesions following aneurysm endovascular therapy are exceptionally rare, with unknown longitudinal evolution.
Objective: To evaluate the radiological behavior of individual NICE lesions over time.
Methods: Patients included in a retrospective national multicentric inception cohort were analyzed.
Purpose: Vessel wall imaging (VWI) with black-blood (BB) technique can demonstrate aneurysmal enhancement preluding to growth/rupture in treatment-naive cerebral aneurysms. Interestingly, recent works showed that BB enhancement may also occur in endovascularly treated aneurysms, though its meaning is controversial. Hypothesizing a flow-related mechanism of BB enhancement, we explored its relationship with incomplete occlusion status and coil packing density at DSA.
View Article and Find Full Text PDFThe Woven EndoBridge (WEB) device has been widely used to treat intracranial wide neck bifurcation aneurysms. Initial studies have demonstrated that approximately 90% of patients have same or improved long-term aneurysm occlusion after the initial 6-month follow up. The aim of this study is to assess the long-term follow-up in aneurysms that have achieved complete occlusion at 6 months.
View Article and Find Full Text PDFSeveral studies have shown promising outcomes of the Woven EndoBridge (WEB) device for the treatment of wide-necked intracranial bifurcation aneurysms. This is a multicenter study attempts to explore the changes in trends and treatment outcomes over time for WEB embolization of intracranial aneurysms. The WorldWideWEB consortium is a retrospective multicenter collaboration of data from international centers spanning from January 2011 and June 2021, with no limitations on aneurysm location or rupture status.
View Article and Find Full Text PDFBackground: The Woven EndoBridge (WEB) device is a novel intrasaccular flow disruptor tailored for bifurcation aneurysms. We aim to describe the degree of aneurysm occlusion at the latest follow-up, and the rate of complications of aneurysms treated with the WEB device stratified according to rupture status.
Methods: Our data were taken from the WorldWideWeb Consortium, an international multicenter cohort including patients treated with the WEB device.
Purpose: Flow diversion changed the approach to complex intracranial aneurysms, leading to a widespread use and a rapid technological evolution. Indeed, indications continued to expand, including ruptured intracranial aneurysms in selected cases. Recently, new devices have been designed specifically to target smaller vessels.
View Article and Find Full Text PDFArticle Synopsis
- The Woven EndoBridge (WEB) device is FDA-approved for treating wide-necked bifurcation aneurysms, but its effectiveness across different locations has only been studied in limited case series.
- A research study analyzed data from 572 aneurysms treated with the WEB device at 22 academic institutions, focusing on various bifurcation types, including AComA, ACA, basilar tip, ICA, and MCA aneurysms.
- Results showed that basilar tip (91.6%) and ICA bifurcation (96.7%) aneurysms had significantly higher occlusion rates compared to ACA (71.4%) and AComA (80.6%) aneurysms, making this the largest study to assess
Background The Woven EndoBridge (WEB) device was explicitly designed for wide-neck intracranial bifurcation aneurysms. Small-scale reports have evaluated the off-label use of WEB devices for the treatment of sidewall aneurysms, with promising outcomes. Purpose To compare the angiographic and clinical outcomes of the WEB device for the treatment of sidewall aneurysms compared with the treatment of bifurcation aneurysms.
View Article and Find Full Text PDFObjective: Transradial access (TRA) is commonly utilized in neurointerventional procedures. This study compared the technical and clinical outcomes of the use of TRA versus those of transfemoral access (TFA) for intracranial aneurysm embolization with the Woven EndoBridge (WEB) device.
Methods: This is a secondary analysis of the Worldwide WEB Consortium, which comprises multicenter data related to adult patients with intracranial aneurysms who were managed with the WEB device.
Coronavirus disease 2019 (COVID-19) is associated with an increased risk of thrombotic events. Ischemic stroke in COVID-19 patients entails high severity and mortality rates. Here we aimed to analyze cerebral thrombi of COVID-19 patients with large vessel occlusion (LVO) acute ischemic stroke to expose molecular evidence for SARS-CoV-2 in the thrombus and to unravel any peculiar immune-thrombotic features.
View Article and Find Full Text PDFArticle Synopsis
- NICE lesions are rare complications that can happen after a procedure called aneurysm endovascular therapy (EVT) to treat bulging blood vessels in the brain.
- In a study of many patients, 31 people were found to have these lesions, most showing symptoms a month or so after the treatment.
- After follow-up, many patients either had no or very few lasting problems, but some still showed signs of the lesions on their brain scans even a long time later.
Background: Inflammation is emerging as an essential trigger for thrombosis. In the interplay between innate immunity and coagulation cascade, neutrophils and neutrophil extracellular traps (NETs) can promote thrombus formation and stabilization. In ischemic stroke, it is uncertain whether the involvement of the inflammatory component may differ in thrombi of diverse etiology.
View Article and Find Full Text PDFBackground: The composition of the thrombus influences its retrievability by mechanical thrombectomy.
Purpose: Our study aimed to report on thrombi resistant to aspiration, regarding susceptibility vessel sign and histologic composition.
Methods: This observational study was based on a prospective database of acute anterior circulation ischemic strokes treated by mechanical thrombectomy.
Location of intracranial aneurysms is the main factor associated with rupture in the ICAN population.
J Neurol Neurosurg Psychiatry
February 2021
Background And Purpose: The ever-growing availability of imaging led to increasing incidentally discovered unruptured intracranial aneurysms (UIAs). We leveraged machine-learning techniques and advanced statistical methods to provide new insights into rupture intracranial aneurysm (RIA) risks.
Methods: We analysed the characteristics of 2505 patients with intracranial aneurysms (IA) discovered between 2016 and 2019.