Publications by authors named "Marchis G"

Background And Objectives: Whether thrombectomy compared with best medical treatment (BMT) improves outcome in patients with stroke and carotid artery dissection (CAD) is unknown.

Methods: This was an international observational study based on prospective nationwide Austrian, German, and Swiss stroke registries. Patients with large vessel occlusion (LVO) due to CAD were compared according to treatment modality (thrombectomy vs BMT including intravenous thrombolysis) and to admission stroke severity NIH Stroke Scale (NIHSS) <6 vs NIHSS ≥6.

View Article and Find Full Text PDF

Background: Herpes simplex virus (HSV) infections of the central nervous system (CNS) are associated with high morbidity and mortality. Prompt recognition and antiviral treatment are critical to improve patient outcomes. This systematic review of the literature aimed to aggregate the symptoms described with HSV infections of the CNS which may provide a framework to aid in early diagnosis.

View Article and Find Full Text PDF

Background And Objectives: Central retinal artery occlusion (CRAO) results in severe visual impairment. Intravenous thrombolysis (IVT) is a potential treatment for CRAO, but ambiguous data regarding efficacy and the possibility that the presence of cerebral infarctions may increase the risk of symptomatic intracranial hemorrhage (sICH) raise concerns. The aim of the current study was to evaluate the safety of IVT in patients with CRAO.

View Article and Find Full Text PDF

Introduction: Dual antiplatelet therapy (DAPT) is superior to single antiplatelet therapy (SAPT) for secondary prevention after minor, non-cardioembolic stroke. We aimed to assess whether DAPT efficacy is modified by large artery atherosclerotic (LAA) etiology, and DAPT safety by stroke size on MRI.

Patients And Methods: Post hoc analysis of the Phase 2 PACIFIC-STROKE randomized clinical trial, which enrolled patients with non-cardioembolic stroke, all with baseline MRI and compared the Factor XIa inhibitor asundexian with placebo on a background of DAPT or SAPT.

View Article and Find Full Text PDF

Introduction: Sex differences in stroke incidence, vascular risk factors (VRFs), and etiologies among young adults remain underexplored, particularly regarding age-related patterns.

Patients And Methods: We retrospectively analyzed young adults (18-55 years) with first-ever ischemic stroke treated at certified acute stroke units/centers between 2014 and 2022, using Swiss Stroke Registry data. Stroke rates (per 100,000 person-years), VRFs, and etiologies were assessed by age and sex.

View Article and Find Full Text PDF

Introduction: Cervical artery dissection is a major cause of stroke in the young. The optimal choice and duration of antithrombotic treatment for stroke prevention are debated, particularly beyond 3 months after symptom onset.

Patients And Methods: TREAT-CAD (ment of ervical rtery issection) was a randomized controlled trial with blinded outcome assessment comparing non-inferiority of aspirin to anticoagulation (Vitamin-K-antagonists) in participants with symptomatic, Magnetic-Resonance-(MR)-imaging-verified cervical artery dissection.

View Article and Find Full Text PDF

Purpose: The Multicentre Acute ischemic stroke imaGIng and Clinical data (MAGIC) repository is a collaboration established in 2024 by seven stroke centres in Europe. MAGIC consolidates clinical and radiological data from acute ischemic stroke (AIS) patients who underwent endovascular therapy, intravenous thrombolysis, a combination of both, or conservative management.

Participants: All centres ensure accuracy and completeness of the data.

View Article and Find Full Text PDF

Purpose: Examining the impact of scoring aids on the accuracy of assessing the Glasgow Coma Score (GCS) in a standardized trauma scenario (primary outcome). Evaluating physicians' understanding of the GCS assessment and clinical application (secondary outcome).

Materials And Methods: This randomized trial was performed at the simulator center of a Swiss tertiary academic medical hospital.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined acute ischemic stroke (AIS) in young adults aged 18 to 55 in Switzerland, focusing on risk factors, treatments, and outcomes between those with determined versus undetermined causes of stroke.
  • Findings revealed that 22% of young AIS patients had undetermined pathogenesis, with higher rates of dyslipidemia and smoking in this group, as well as a tendency to receive intravenous thrombolysis.
  • Despite a higher recurrence risk in the undetermined pathogenesis group, they experienced better functional outcomes at 3 months compared to those with a determined cause, particularly for those aged 46 to 55.
View Article and Find Full Text PDF

Background: Acute intracranial occlusion of the internal carotid artery (ICA) can be distinguished into (a) occlusion of the terminal ICA, involving the proximal segments of the middle or anterior cerebral artery (ICA-L/-T) and (b) non-terminal intracranial occlusions of the ICA with patent circle of Willis (ICA-I). While patients with ICA-L/-T occlusion were included in all randomized controlled trials on endovascular therapy (EVT) in anterior large vessel occlusion, data on EVT in ICA-I occlusion is scarce. We thus aimed to evaluate effectiveness and safety of EVT in ICA-I occlusions in comparison to ICA-L/-T occlusions.

View Article and Find Full Text PDF

Introduction: Automated CT perfusion (aCTP) is commonly used to select patients with anterior circulation large vessel occlusion (aLVO) for endovascular treatment (EVT). The equivalence of visually assessed Non-contrast CT Alberta Stroke Program Early CT Scores (ASPECTS) and aCTP based selection in predicting favorable functional outcomes remains uncertain.

Patients And Methods: Retrospective multicenter study of adult aLVO patients from the Swiss Stroke Registry (2014-2021) treated with EVT or best medical treatment 6-24 h after stroke onset.

View Article and Find Full Text PDF

Introduction: There is limited understanding of the pathomechanistic relationship between leptomeningeal collateral formation and ischaemic stroke aetiology. We aimed to assess the association of leptomeningeal collateral status and ischaemic stroke aetiology, using the widely recognised "Trial of Org 10172 in Acute Stroke Treatment" (TOAST) classification categorising strokes into five distinct aetiologies.

Methods: Retrospective study of consecutively admitted adult ischaemic stroke patients at a Swiss stroke centre.

View Article and Find Full Text PDF

Background And Objectives: Prolonged cardiac monitoring (PCM) increases atrial fibrillation (AF) detection after ischemic stroke, but access is limited, and it is burdensome for patients. Our objective was to assess whether midregional proatrial natriuretic peptide (MR-proANP) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) could classify people who are unlikely to have AF after ischemic stroke and allow better targeting of PCM.

Methods: We analyzed people from the Biomarker Signature of Stroke Aetiology (BIOSIGNAL) study with ischemic stroke, no known AF, and ≥3 days cardiac monitoring.

View Article and Find Full Text PDF

Embolic strokes of undetermined source (ESUS) represent 9%-25% of all ischemic strokes. Based on the suspicion that a large proportion of cardioembolic sources remain undetected among embolic stroke of undetermined source patients, it has been hypothesized that a universal approach of anticoagulation would be better than aspirin for preventing recurrent strokes. However, 4 randomized controlled trials (RCTs), with different degrees of patient selection, failed to confirm this hypothesis.

View Article and Find Full Text PDF

Introduction: There is a longstanding clinical uncertainty regarding the optimal timing of initiating oral anticoagulants (OAC) for non-valvular atrial fibrillation following acute ischemic stroke. Current international recommendations are based on expert opinions, while significant diversity among clinicians is noted in everyday practice.

Methods: We conducted an updated systematic review and meta-analysis including all available randomized-controlled clinical trials (RCTs) and observational cohort studies that investigated early versus later OAC-initiation for atrial fibrillation after acute ischemic stroke.

View Article and Find Full Text PDF

Background: In the phase 2 PACIFIC-STROKE trial (Proper Dosing and Safety of the Oral FXIa Inhibitor BAY 2433334 in Patients Following Acute Noncardioembolic Stroke), asundexian, an oral factor XIa inhibitor, did not increase the risk of hemorrhagic transformation (HT). In this secondary analysis, we aimed to investigate the frequency, types, and risk factors of HT on brain magnetic resonance imaging (MRI).

Methods: This was a secondary analysis of the PACIFIC-STROKE trial.

View Article and Find Full Text PDF

Objective: The objective of this study was to assess the efficacy and tolerability of intranasal midazolam (in-MDZ) administration for antiseizure treatment in adults.

Methods: Embase and Medline literature databases were searched. We included randomized trials and cohort studies (excluding case series) of adult patients (≥ 18 years of age) examining in-MDZ administration for epilepsy, epileptic seizures, or status epilepticus published in English between 1985 and 2022.

View Article and Find Full Text PDF

Background: Lipoprotein (a) [Lp(a)] serum levels are highly genetically determined and promote atherogenesis. High Lp(a) levels are associated with increased cardiovascular morbidity. Serum Lp(a) levels have recently been associated with large artery atherosclerosis (LAA) stroke.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how leptomeningeal collateralization affects the success of mechanical thrombectomy (MT) in stroke patients with large vessel occlusion, focusing on those who arrive 6-24 hours after stroke onset.
  • Results show that better collateralization leads to improved functional outcomes for patients receiving Best Medical Treatment (BMT) alone, while MT combined with BMT significantly increases the odds of favorable outcomes, especially for patients with no collateralization.
  • The findings suggest that patients lacking collateralization may gain the most benefit from MT plus BMT, emphasizing the need for tailored treatment strategies based on individual collateral status despite worse initial prognoses.
View Article and Find Full Text PDF

Background: This study aimed to assess if there are sex differences in the functional outcome of intravenous thrombolysis (IVT) among patients with lacunar stroke (LS).

Methods: Consecutive patients admitted from 1 January 2014 to 31 January 2020 to hospitals participating in the Swiss Stroke Registry presenting with LS and treated with IVT were included. The study population was then divided into two groups based on patient sex, and a multivariable ordinal logistic regression analysis was performed to uncover sex differences in the modified Rankin Scale (mRS) score at 90 days after stroke.

View Article and Find Full Text PDF

Objective: Uncertainty remains regarding antithrombotic treatment in cervical artery dissection. This analysis aimed to explore whether certain patient profiles influence the effects of different types of antithrombotic treatment.

Methods: This was a post hoc exploratory analysis based on the per-protocol dataset from TREAT-CAD (NCT02046460), a randomized controlled trial comparing aspirin to anticoagulation in patients with cervical artery dissection.

View Article and Find Full Text PDF

Background And Aims: Low density lipoprotein (LDL-C) and other atherogenic lipoproteins are coated by apolipoprotein B100 (apoB). The correlation between LDL-C and apoB is usually thight, but in some cases LDL-C underestimates apoB levels and residual cardiovascular risk. We aimed to assess if a discordance of LDL-C-levels with apoB levels is associated with LAA stroke.

View Article and Find Full Text PDF

Background: Exploratory analysis of the phase 2 PACIFIC-Stroke (Program of Anticoagulation via Inhibition of FXIa by the Oral Compound BAY 2433334-Non-Cardioembolic Stroke) randomized trial suggested that asundexian, an oral factor XIa inhibitor, prevents recurrent stroke and transient ischemic attacks in patients with atherosclerotic stroke. In this post hoc exploratory analysis, we hypothesized that asundexian would be more effective in patients enrolled with large, multiple, or cortical acute infarcts on magnetic resonance imaging than in patients enrolled with a single small subcortical acute infarct, and asundexian would prevent incident cortical covert infarcts.

Methods: In this placebo-controlled double-blinded randomized controlled trial, patients with mild-to-moderate noncardioembolic ischemic stroke were assigned to asundexian (10, 20, or 50 mg once daily) or placebo, in addition to antiplatelet therapy.

View Article and Find Full Text PDF

Inflammation is an established pathway in the formation, growth, and rupture of atherosclerotic plaques. Inflammation is thus essential to the pathogenesis of coronary heart disease and some types of ischemic stroke. The benefit of anti-inflammatory therapies, such as colchicine and the anti-IL1β canakinumab, is proven in patients with coronary heart disease, yet it remains unproven for patients with ischemic stroke.

View Article and Find Full Text PDF

Background And Objectives: To investigate the association between dose escalation of continuously administered IV anesthetics and its duration with short-term outcomes in adult patients treated for refractory status epilepticus (RSE).

Methods: Clinical and electroencephalographic data of patients with RSE without hypoxic-ischemic encephalopathy who were treated with anesthetics at a Swiss academic medical center from 2011 to 2019 were assessed. The frequency of anesthetic dose escalation (i.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionh130u9ttjea6cnjr91tc3saj37a3mhj2): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once