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When Stroke

Publications (when Stroke)

First experience of using Xavron, a free radical scavenger, in patients with acute ischemic stroke

Abstract. Background. In acute ischemic stroke (AIS), more than 1,000 substances with known neuroprotective effects have been studied, but their effectiveness is considered insufficiently convincing. In 2018, Ukraine launched the release of a new free radical scavenger Xavron (active ingredient — edaravone), which since 2001 has been successfully prescribed in Japan for the treatment of AIS and is a part of the Japanese national guidelines for the treatment of AIS. The purpose of this work is to study the effectiveness of a new neuroprotective drug Xavron (edaravone) in the comprehensive therapy of patients with AIS. Materials and methods. A prospective, integrated clinical, neurological and laboratory examination was conducted in 28 patients (13 women and 15 men) with AIS. The patients were divided into two groups that did not differ in terms of main characteristics and treatment. However, patients in the first group (n = 18) received Xavron (30 mg edaravone) twice daily intravenously. In the control group (n = 10), the drugs with neuroprotective effect were not used. Results. The analysis of Glasgow Coma Scale scores showed a positive dynamics in the majority of patients in both groups without significant statistical difference (p > 0.05). However, the analysis of FOUR (Full Outline of UnResponsiveness) scores showed that in the group where Xavron was used for neuroprotection, since day 5 the level of consciousness was restored more quickly than in the control group. The difference between group 1 and controls became significant within 9–10 days of treatment (p< 0.05). On day 3 in the control group, the level of neuron-specific enolase (NSE) increased by 10 times (from 9.2 to 96.4 ng/ml). Subsequently, there was a rapid decrease in the NSE level, which in the main group of patients was normalized until day 10 of treatment, and in the control group, the NSE level did not reach the reference values within 10 days of therapy (p < 0.05). Conclusions. The use of Xavron (edaravone) in patients with AIS was significantly effective in terms of neurological status (level of consciousness on the FOUR scale) and the dynamics of neurological markers (NSE). Further research is needed to clarify the role of Xavron (edaravone) in the intensive care of AIS patients.

Authors: Emergency medicine № 3 (98), 2019
Posted: Emergency medicine № 3 (98), 2019
Effect of a Novel Free Radical Scavenger, Edaravone (MCI-186), on Acute Brain Infarction

Edaravone, a novel free radical scavenger, demonstrates neuroprotective effects by inhibiting vascular endothelial cell injury and ameliorating neuronal damage in ischemic brain models. The present study was undertaken to verify its therapeutic efficacy following acute ischemic stroke.

We performed a multicenter, randomized, placebo-controlled, double-blind study on acute ischemic stroke patients commencing within 72 h of onset. Edaravone was infused at a dose of 30 mg, twice a day, for 14 days. At discharge within 3 months or at 3 months after onset, the functional outcome was evaluated using the modified Rankin Scale. Two hundred and fifty-two patients were initially enrolled. Of these, 125 were allocated to the edaravone group and 125 to the placebo group for analysis. Two patients were excluded because of subarachnoid hemorrhage and disseminated intravascular coagulation.

A significant improvement in functional outcome was observed in the edaravone group as evaluated by the modified Rankin Scale (p = 0.0382).

Edaravone represents a neuroprotective agent which is potentially useful for treating acute ischemic stroke, since it can exert significant effects on functional outcome as compared with placebo.

Authors: Eiichi Otomo
Posted: Cerebrovasc Dis 2003
Acute ischemic stroke: revealing the maximum possibilities of pharmacotherapy

Materials of the XXI International Scientific and Practical Conference “Interdisciplinary Issues in Modern Neurology”, April 22-24, Truskavets, Ukraine.

Much attention was paid during the event to the problematic aspects of managing patients with acute ischemic stroke. Within the framework of intensive therapy in cardioneurology a separate scientific symposium discussed the possibilities of modern pharmacotherapy for acute stroke, which are available to doctors today and allow to improve the results of treatment and reduce the disability of patients with stroke.

Authors: Chemer N.M., Darii V.I., Oros M.M.
Posted: Medical newspaper "Health of Ukraine", № 12 (457), 2019
Acute Kidney Injury and Edaravone in Acute Ischemic Stroke: The Fukuoka Stroke Registry

Background: A free radical scavenger, edaravone, which has been used for the treatment of ischemic stroke, was reported to cause acute kidney injury (AKI) as a fatal adverse event. The aim of the present study was to clarify whether edaravone is associated with AKI in patients with acute ischemic stroke. Methods: From the Fukuoka Stroke Registry database, 5689 consecutive patients with acute ischemic stroke who were hospitalized within 24 hours of the onset of symptoms were included in this study. A logistic regression analysis for the Fukuoka Stroke Registry cohort was done to identify the predictors for AKI. A propensity score–matched nested case–control study was also performed to elucidate any association between AKI and edaravone. Results: Acute kidney injury occurred in 128 of 5689 patients (2.2%) with acute ischemic stroke. A multivariate analysis revealed that the stroke subtype, the basal serum creatinine level, and the presence of infectious complications on admission were each predictors of developing AKI. In contrast, a free radical scavenger, edaravone, reduced the risk of developing AKI (multivariate-adjusted odds ratio [OR] .45, 95% confidence interval [CI] .30-.67). Propensity score–matched case–control study confirmed that edaravone use was negatively associated with AKI (propensity score–adjusted OR .46, 95% CI .29-.74). Conclusions: Although AKI has a significant impact on the clinical outcome of hospital inpatients, edaravone has a protective effect against the development of AKI in patients with acute ischemic stroke.

Authors: Masahiro Kamouchi et al.
Posted: International Neurological Journal, №3 (105), 2019
The search for new methods and drugs to struggle with cerebral stroke and its complications

The scientific-practical conference “Opportunities and Achievements of Modern Pharmacotherapy in the Practice of a Neurologist” held in Kharkov on March 14-15, 2019. It was organized by Association of Neurologists, Psychiatrists and Narcologists of Ukraine, Institute of Neurology, Psychiatry and Narcology of the National Academy of Medical Sciences of Ukraine, Kharkiv National University named after V.N. Karazin.

The event was devoted to innovative methods of diagnosis, treatment and prevention of pathologies of central nervous system. Stroke remains a major central nervous system disease due to high prevalence, disability and mortality. You will find an overview of some of the reports voiced at the conference.

Authors: V.M. Mishchenko, V.I. Darii, I.V. Khubetova, T.S. Mishchenko
Posted: Health of Ukraine. Thematic issue "Neurology, Psychiatry, Psychotherapy" No. 2, 2019.