Kévin Premat
A5048284137- Acute Ischemic Stroke Management
- Cerebrovascular and Carotid Artery Diseases
- Intracranial Aneurysms: Treatment and Complications
- Venous Thromboembolism Diagnosis and Management
- Vascular Malformations Diagnosis and Treatment
- Spinal Fractures and Fixation Techniques
- Intracerebral and Subarachnoid Hemorrhage Research
- Stroke Rehabilitation and Recovery
- Traumatic Brain Injury and Neurovascular Disturbances
- Spine and Intervertebral Disc Pathology
- Neurosurgical Procedures and Complications
- Management of metastatic bone disease
- Pelvic and Acetabular Injuries
- Peripheral Artery Disease Management
- Antiplatelet Therapy and Cardiovascular Diseases
- Cardiac, Anesthesia and Surgical Outcomes
- Cerebral Venous Sinus Thrombosis
- Cerebrospinal fluid and hydrocephalus
- Spinal Hematomas and Complications
- Head and Neck Surgical Oncology
- Central Venous Catheters and Hemodialysis
- Atrial Fibrillation Management and Outcomes
- Vascular Procedures and Complications
- Meningioma and schwannoma management
- Advanced Neuroimaging Techniques and Applications
Thomas Jefferson University Hospital
2025
Pitié-Salpêtrière Hospital
2016-2024
Sorbonne Université
2016-2024
Assistance Publique – Hôpitaux de Paris
2017-2024
Hôpital Charles-Foix
2021-2024
Université Paris Cité
2020-2024
Université Paris 1 Panthéon-Sorbonne
2019-2024
Sorbonne Paris Cité
2022
Université Sorbonne Nouvelle
2019-2021
Université Paris 8
2020
Mechanical thrombectomy (MT) has revolutionized the treatment of acute ischemic stroke (AIS) due to large vessel occlusion (LVO), but its efficacy and safety in medium (MeVO) remain less explored. This multicenter, retrospective study aims investigate incidence clinical outcomes perforations (confirmed by extravasation during an angiographic series) MT for AIS caused MeVO.
Background Embolization of the middle meningeal artery (MMA) has emerged as a potential treatment chronic subdural hematomas (CSDHs). Objective To evaluate impact on recurrence rate postsurgical embolization CSDH in patients with higher than average risk recurrence. Methods A monocentric retrospective study was performed retrospectively collected data. From March 2018 to December 2019, MMA proposed an adjunct postoperative after burr-hole surgery operated for recurrent or independent factor,...
Stroke remains a major health concern globally, with oral anticoagulants widely prescribed for stroke prevention. The efficacy and safety of mechanical thrombectomy (MT) in anticoagulated patients distal medium vessel occlusions (DMVO) are not well understood.
Background The combination of intravenous thrombolysis (IVT) with mechanical thrombectomy (MT) may have clinical benefits for patients medium vessel occlusion. Purpose To examine whether MT combined IVT is associated different outcomes than alone in acute ischemic stroke (AIS) and Materials Methods This retrospective study included consecutive adult AIS occlusion treated or at 37 academic centers North America, Asia, Europe. Data were collected from September 2017 to July 2021. Propensity...
Intravenous thrombolysis (IVT) with alteplase or tenecteplase before mechanical thrombectomy is the recommended treatment for large-vessel occlusion acute ischemic stroke. There are divergent data on whether these agents differ in terms of early recanalization (ER) rates thrombectomy, and little their potential differences stratified by ER predictors such as IVT to evaluation (IVT-to-ER
Introduction: First pass effect (FPE), achievement of complete recanalization (mTICI 2c/3) with a single pass, is significant predictor favorable outcomes for endovascular treatment (EVT) in large vessel occlusion stroke (LVO). However, data concerning the impact on functional and predictors FPE medium occlusions (MeVO) are scarce. Patients Methods: We conducted an international retrospective study MeVO cases. Multivariable logistic modeling was used to establish independent FPE. Clinical...
Background The Woven EndoBridge (WEB) device is frequently used for the treatment of intracranial aneurysms. Postoperative management, including use aspirin, varies among clinicians and institutions, but its impact on outcomes WEB has not been thoroughly investigated. Methods This was a retrospective, multicenter study involving 30 academic institutions in North America, South Europe. Data from 1492 patients treated with were included. Patients categorized into two groups based their...
To investigate in routine care the efficacy and safety of IV thrombolysis (IVT) with tenecteplase prior to mechanical thrombectomy (MT) patients large vessel occlusion acute ischemic strokes (LVO-AIS), either secondarily transferred after IVT or directly admitted a comprehensive stroke center (CSC).We retrospectively analyzed clinical procedural data treated 0.25 mg/kg within 270 minutes LVO-AIS who underwent brain angiography. The main outcome was 3-month functional independence (modified...
Mechanical thrombectomy (MT) associated with the best medical treatment (BMT) has recently shown efficacy for management of acute ischemic stroke (AIS) secondary to a large vessel occlusion. However, evidence is lacking regarding benefit MT more distal occlusions.
Background For acute proximal intracranial artery occlusions, contact aspiration may be more effective than stent‐retriever for first‐line reperfusion therapy. Due to the lack of data regarding medium vessel occlusion thrombectomy, we evaluated outcomes according technique in a large, multicenter registry. Methods Imaging, procedural, and clinical patients with occlusions (M2, A1, or P1) distal (M3, A2, P2, further) treated at 37 sites 10 countries were analyzed endovascular (stent‐retriever...
OBJECTIVE Tobacco smoking is among the factors known to significantly augment risk of untreated intracranial aneurysm (IA) growth and rupture. Smoking appears have a variable effect on different endovascular treatment modalities. The impact safety, efficacy, outcomes Woven EndoBridge (WEB) device use for wide-neck IAs has not been evaluated. This study aimed investigate WEB devices by status. METHODS A retrospective multicenter analysis was conducted data patients from 36 sites worldwide...
Abstract While the Woven EndoBridge (WEB) device has transformed treatment of wide-neck intracranial aneurysms, incomplete occlusion remains a significant challenge requiring better understanding contributing factors. A retrospective analysis was conducted on multicenter data from patients who underwent WEB for aneurysms between January 2011 and December 2022. Using machine learning models, Cox regression, time-stratified analyses, we evaluated factors associated with persistent occlusion,...
Perioperative strokes (POS) are rare but serious complications for which mechanical thrombectomy could be beneficial. We aimed to compare the technical results and patients outcomes in a population of POS versus non-POS (nPOS) treated by thrombectomy.From 2010 2017, 25 with (ie, acute ischemic stroke occurring during or within 30 days after procedure) who underwent (POS group) were enrolled paired 50 consecutive nPOS (control group), based on occlusion's site, National Institute Health...
Abstract The Woven EndoBridge (WEB) device is primarily used for treating wide-neck intracranial bifurcation aneurysms under 10 mm. Limited data exists on its efficacy large aneurysms. We aim to assess angiographic and clinical outcomes of the WEB in versus small . conducted a retrospective review WorldWide Consortium database, from 2011 2022, across 30 academic institutions globally. Propensity score matching (PSM) was employed compare baseline characteristics. A total 898 patients were...
Non-ischemic cerebral enhancing (NICE) lesions are exceptionally rare following aneurysm endovascular therapy (EVT).To investigate the presenting features and longitudinal follow-up of patients with NICE EVT.Patients included in a retrospective national multicentre inception cohort were analysed. defined, using MRI, as delayed onset punctate, nodular or annular foci enhancements peri-lesion edema, distributed vascular territory EVT, no other confounding disease.From pool 58 815 treatment...
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 latest follow-up, and rate complications aneurysms treated with WEB stratified according rupture status.Our data were taken from WorldWideWeb Consortium, an international multicenter cohort including patients device. Aneurysms classified into two groups: ruptured unruptured. compared clinical radiologic outcomes both groups....
Rescue intracranial stenting (RIS) can be used in refractory large vessel occlusion (LVO) after mechanical thrombectomy (MT). We aimed to assess the safety and efficacy of RIS versus a propensity matched sample patients with persistent LVO.