Publications by authors named "Louis Veunac"
Background And Purpose: Vasospasm is a common iatrogenic event during mechanical thrombectomy (MT). In such circumstances, intra-arterial nimodipine administration is occasionally considered. However, its use in the treatment of iatrogenic vasospasm during MT has been poorly studied.
View Article and Find Full Text PDFBackground: The Alberta Stroke Program Early CT scan Score (ASPECTS) is a reliable imaging biomarker of infarct extent on admission but the value of 24-hour ASPECTS evolution in day-to-day practice is not well studied, especially after successful reperfusion. We aimed to assess the association between ASPECTS evolution after successful reperfusion with functional and safety outcomes, as well as to identify the predictors of ASPECTS evolution.
Methods: We used data from an ongoing prospective multicenter registry.
Background: The number of mechanical thrombectomy (MT) passes is strongly associated with angiographic reperfusion as well as clinical outcomes in patients with anterior circulation ischemic stroke. However, these associations have not been analyzed in patients with basilar artery occlusion (BAO). We investigated the influence of the number of MT passes on the degree of reperfusion and clinical outcomes, and compared outcome after ≤3 passes versus >3 passes.
View Article and Find Full Text PDFArticle Synopsis
- Endovascular treatment (EVT) for blocked arteries in the brain (basilar artery occlusions) doesn't always lead to good results, even if doctors successfully restore blood flow.
- A study looked at data from stroke patients in France and found that many patients didn’t have a good recovery after treatment, even when their blood flow was restored.
- Factors like age, stroke severity, and the type of successful blood flow restoration were important in predicting how well patients would do after treatment.
Article Synopsis
- This study investigates if the reversal of DWI lesions in acute ischemic stroke patients can predict their clinical outcomes after thrombectomy.
- It analyzes data from patients with low DWI-ASPECTS scores treated between 2015 and 2020, finding that a significant percentage experienced early neurological improvement and favorable 3-month functional outcomes.
- The results show that DWI reversal is a key factor in predicting these outcomes, with successful recanalization being the main predictor of DWI reversal.
Background: Neurointerventionists lack guidelines for the use of antithrombotic therapies in their clinical practice; consequently, there is likely to be significant heterogeneity in antithrombotic use between centers. Through a nationwide survey, we aimed to obtain an exhaustive cross-sectional overview of antithrombotic use in neurointerventional procedures in France.
Methods: In April 2021, French neurointerventional surgery centers were invited to participate in a nationwide 51-question survey disseminated through an active trainee-led research collaborative network (the JENI-RC).
Introduction: The use of extracranial internal carotid artery (ICA) stents after mechanical thrombectomy (MT) may be a source of morbidity and mortality. Studies comparing patients who received stenting to patients who do not receive stenting have a higher number of patients with failed intracranial reperfusion in the non-stenting cohort. In this study, we analyzed the impact of extracranial ICA stenting in tandem occlusion stroke in patients with successfully intracranial reperfusion.
View Article and Find Full Text PDFBackground: It is unknown whether collateral status modifies the effect of pretreatment intravenous thrombolysis (IVT) on the outcomes of patients with large vessel occlusions treated with endovascular therapy (EVT). We aimed to assess whether collateral status modifies the effect of IVT on the outcomes of EVT in clinical practice.
Methods: We used data from the ongoing prospective multicentric Endovascular Treatment in Ischemic Stroke (ETIS) Registry in France.
Background: In acute ischemic stroke due to anterior large vessel occlusion (AIS-LVO), accessing the target occluded vessel for mechanical thrombectomy (MT) is sometimes impossible through the femoral approach. We aimed to evaluate the safety and efficacy of direct carotid artery puncture (DCP) for MT in patients with failed alternative vascular access.
Methods: We retrospectively analyzed data from 45 stroke centers in France, Switzerland and Germany through two research networks from January 2015 to July 2019.
Background And Purpose: Procedural complications in thrombectomy for large vessel occlusions of the anterior circulation are not well described. We investigated the incidence, risk factors, and clinical implications of thrombectomy complications in daily clinical practice.
Methods: We used data from the ongoing prospective multicenter observational Endovascular Treatment in Ischemic Stroke Registry in France.
Background And Purpose: The influence of prior antiplatelet therapy (APT) uses on the outcomes of patients with acute ischemic stroke treated with endovascular therapy is unclear. We compared procedural and clinical outcomes of endovascular therapy in patients on APT or not before stroke onset.
Methods: We analyzed 2 groups from the ongoing prospective multicenter Endovascular Treatment in Ischemic Stroke registry in France: patients on prior APT (APT+) and patients without prior APT (APT-) treated by endovascular therapy, with and without intravenous thrombolysis.
Background: Studies have suggested that collateral status modifies the effect of successful reperfusion on functional outcome after endovascular therapy (EVT). We aimed to assess the association between collateral status and EVT outcomes and to investigate whether collateral status modified the effect of successful reperfusion on EVT outcomes.
Methods: We used data from the ongoing, prospective, multicenter Endovascular Treatment in Ischemic Stroke (ETIS) Registry.
Background: The predictors of successful reperfusion and the effect of reperfusion after endovascular treatment (EVT) for M2 occlusions have not been well studied. We aimed to identify predictors of successful reperfusion and the effect of reperfusion on outcomes of EVT for M2 occlusions in current practice.
Methods: Patients with acute ischemic stroke due to isolated M2 occlusions who were enrolled in the prospective multicenter Endovascular Treatment in Ischemic Stroke (ETIS) Registry in France between January 2015 and March 2020 were included.
Introduction: A new generation of carotid artery stents that use a dual micromesh layer to reduce embolic events during carotid artery stenting has recently been introduced. We aimed to analyze the effectiveness and safety of the new Casper-RX stent in patients experiencing acute ischemic stroke with large vessel intracranial occlusion associated with a tandem lesion (another carotid occlusion or severe stenosis).
Methods: We retrospectively analyzed all consecutive patients treated with carotid Casper-RX stents from our stroke registry.