showing 9 related works from this author
Safety and Outcome of Revascularization Treatment in Patients With Acute Ischemic Stroke and COVID-19: The Global COVID-19 Stroke Registry.
2023
Background and ObjectivesCOVID-19–related inflammation, endothelial dysfunction, and coagulopathy may increase the bleeding risk and lower the efficacy of revascularization treatments in patients with acute ischemic stroke (AIS). We aimed to evaluate the safety and outcomes of revascularization treatments in patients with AIS and COVID-19.MethodsThis was a retrospective multicenter cohort study of consecutive patients with AIS receiving intravenous thrombolysis (IVT) and/or endovascular treatment (EVT) between March 2020 and June 2021 tested for severe acute respiratory syndrome coronavirus 2 infection. With a doubly robust model combining propensity score weighting and multivariate regress…
Association of prestroke metformin use, stroke severity, and thrombolysis outcome
2020
ObjectiveTo evaluate whether pretreatment with metformin (MET) is associated with less stroke severity and better outcome after IV thrombolysis (IVT), we analyzed a cohort of 1,919 patients with stroke with type 2 diabetes mellitus in a multicenter exploratory analysis.MethodsData from patients with diabetes and ischemic stroke treated with IVT were collected within the European Thrombolysis in Ischemic Stroke Patients (TRISP) collaboration. We applied propensity score matching (PSM) to obtain balanced baseline characteristics of patients treated with and without MET.ResultsOf 1,919 patients with stroke with type 2 diabetes who underwent IVT, 757 (39%) had received MET before stroke (MET+),…
Recurrent Ischemic Stroke and Bleeding in Patients With Atrial Fibrillation Who Suffered an Acute Stroke While on Treatment With Nonvitamin K Antagon…
2022
Background: In patients with atrial fibrillation who suffered an ischemic stroke while on treatment with nonvitamin K antagonist oral anticoagulants, rates and determinants of recurrent ischemic events and major bleedings remain uncertain. Methods: This prospective multicenter observational study aimed to estimate the rates of ischemic and bleeding events and their determinants in the follow-up of consecutive patients with atrial fibrillation who suffered an acute cerebrovascular ischemic event while on nonvitamin K antagonist oral anticoagulant treatment. Afterwards, we compared the estimated risks of ischemic and bleeding events between the patients in whom anticoagulant therapy was chan…
Common variation in PHACTR1 is associated with susceptibility to cervical artery dissection
2014
Item does not contain fulltext Cervical artery dissection (CeAD), a mural hematoma in a carotid or vertebral artery, is a major cause of ischemic stroke in young adults although relatively uncommon in the general population (incidence of 2.6/100,000 per year). Minor cervical traumas, infection, migraine and hypertension are putative risk factors, and inverse associations with obesity and hypercholesterolemia are described. No confirmed genetic susceptibility factors have been identified using candidate gene approaches. We performed genome-wide association studies (GWAS) in 1,393 CeAD cases and 14,416 controls. The rs9349379[G] allele (PHACTR1) was associated with lower CeAD risk (odds ratio…
Recanalization Therapies in Acute Ischemic Stroke Patients Impact of Prior Treatment With Novel Oral Anticoagulants on Bleeding Complications and Out…
2015
Background— We explored the safety of intravenous thrombolysis (IVT) or intra-arterial treatment (IAT) in patients with ischemic stroke on non-vitamin K antagonist oral anticoagulants (NOACs, last intake <48 hours) in comparison with patients (1) taking vitamin K antagonists (VKAs) or (2) without previous anticoagulation (no-OAC). Methods and Results— This is a multicenter cohort pilot study. Primary outcome measures were (1) occurrence of intracranial hemorrhage (ICH) in 3 categories: any ICH (ICH any ), symptomatic ICH according to the criteria of the European Cooperative Acute Stroke Study II (ECASS-II) (sICH ECASS-II ) and the National Institute of Neurological Disorders and Stroke …
Production, purification and evaluation of insect cell-expressed proteins with diagnostic potential
2008
Patrik Michelin väitöskirjan aiheena on useiden erityyppisten rekombinanttiproteiinien tuotto, puhdistus ja karakterisointi. Rekombinanttiproteiinit ovat keskeisessä asemassa kehitettäessä uusia diagnostisia menetelmiä. Näiden proteiinien tuotossa organismiin lisätään muokattua vierasta geneettistä materiaalia, jotta organismi tuottaisi tavoiteltua proteiinia. Tuottoprosessit sisältävät puhdistusvaiheita, jotta haluttu proteiini voidaan eristää elävästä, monimutkaisesta lähtömateriaalista. Tuottoprosessissa on ainakin seuraavat vaiheet: tuotto-organismin kasvatus, rekombinanttiproteiinien tuotto isäntäsolussa ja lopputuotteen jälkikäsittely. Tämän jälkeen rekombinanttiproteiineja voidaan kä…
Global Impact of the COVID-19 Pandemic on Cerebral Venous Thrombosis and Mortality
2022
[Background and Purpose] Recent studies suggested an increased incidence of cerebral venous thrombosis (CVT) during the coronavirus disease 2019 (COVID-19) pandemic. We evaluated the volume of CVT hospitalization and in-hospital mortality during the 1st year of the COVID-19 pandemic compared to the preceding year.
Intravenous Thrombolysis in Patients Dependent on the Daily Help of Others Before Stroke
2016
Background and Purpose— We compared outcome and complications in patients with stroke treated with intravenous thrombolysis (IVT) who could not live alone without help of another person before stroke (dependent patients) versus independent ones. Methods— In a multicenter IVT-register–based cohort study, we compared previously dependent (prestroke modified Rankin Scale score, 3–5) versus independent (prestroke modified Rankin Scale score, 0–2) patients. Outcome measures were poor 3-month outcome (not reaching at least prestroke modified Rankin Scale [dependent patients]; modified Rankin Scale score of 3–6 [independent patients]), death, and symptomatic intracranial hemorrhage. Unadjusted an…
Non-office-hours admission affects intravenous thrombolysis treatment times and clinical outcome
2018
In patients treated with intravenous thrombolysis (IVT), an unfavourable ‘non-office-hours effect’ on door-to-needle time (DNT) and clinical outcome has been suggested. This effect has been attributed to a number of factors, mostly related to either less efficient logistics or less (experienced) staffing during non-office hours (NH). These factors could result in longer DNTs and more protocol violations and thus in worse clinical outcome. On the other hand, one could also argue that the workload during NH is lower, which could result in less time delays in the various diagnostic processes and thus in better clinical outcome. Our hypothesis is that admission during NH has a negative effect o…