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Condition: Atrial Fibrillation
Countries: Japan Health

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Total 333 results found since Jan 2013.

High Detection Rate of Atrial Fibrillation With Insertable Cardiac Monitor Implantation in Patients With Cryptogenic Stroke Diagnosed by Magnetic Resonance Imaging
Background: Detection and treatment of atrial fibrillation (AF) is a major goal in preventing secondary stroke. Insertable cardiac monitors (ICMs) are available for diagnosis of arrhythmia monitoring in patients with cryptogenic stroke. Magnetic resonance imaging (MRI)-based diagnostic evaluation for acute ischemic stroke subtype classification is common in Japan and can be useful for specific diagnosis of cryptogenic stroke. Purpose: We aimed to investigate the detection rate of AF with an ICM in patients with cryptogenic stroke who were diagnosed by MRI.
Source: Journal of Stroke and Cerebrovascular Diseases - June 20, 2019 Category: Neurology Authors: Tomonori Iwata, Kenichi Todo, Hiroshi Yamagami, Masafumi Morimoto, Tetsuya Hashimoto, Ryosuke Doijiri, Hiroyuki Furuya Source Type: research

Comparison of primary and secondary stroke prevention in patients with nonvalvular atrial fibrillation: Results from the RAFFINE registry
Atrial fibrillation (AF) is a predictor of severe stroke and early death in acute ischemic stroke patients.1 The prevalence of AF has increased as the Japanese population has aged.2 AF has been more common among patients with ischemic stroke than previously reported.3 In particular, AF patients with a history of stroke or TIA have had higher risks for stroke, hemorrhagic events, and death compared to those without.4,5 In these previous studies, most patients received warfarin for anticoagulation therapy.
Source: Journal of Stroke and Cerebrovascular Diseases - November 7, 2022 Category: Neurology Authors: Kazuo Yamashiro, Ryota Tanaka, Sakiko Miyazaki, Katsumi Miyauchi, Hidemori Hayashi, Yuji Nishizaki, Shuko Nojiri, Satoru Suwa, Masataka Sumiyosi, Yuji Nakazato, Takao Urabe, Nobutaka Hattori, Tohru Minamino, Hiroyuki Daida Source Type: research

Cost-Effectiveness Analysis of Percutaneous Patent Foramen Ovale Closure Preventing Secondary Ischemic Stroke in Japan
Cryptogenic ischemic stroke is a type of ischemic stroke for which the mechanism of onset and etiology cannot be explained or specified by any known mechanisms/factors. The possible involvement of patent foramen ovale (PFO) in the etiology of cryptogenic ischemic stroke has been reported.1 It was previously reported that occult atrial fibrillation and PFO were embolic sources that caused cryptogenic ischemic stroke.2 PFO is an opening formed during the course of fetal atrial septum development. Usually, it closes spontaneously after birth; however, PFO remains patent after maturation to adulthood.
Source: Journal of Stroke and Cerebrovascular Diseases - June 18, 2021 Category: Neurology Authors: Sachie Inoue, Ataru Igarashi, Yasuyuki Iguchi, Teiji Akagi Source Type: research

Association Between Oral Anticoagulants and Stroke Severity at Onset in Elderly Patients with Cardioembolic Stroke Due to Non-Valvular Atrial Fibrillation
The prevention of cardioembolic stroke is an important public health priority in Japan due to its high prevalence in elderly individuals. Compared to their younger counterparts, elderly patients with cardioembolic stroke are more likely to have multiple comorbidities, a higher risk of serious complications, such as pneumonia and heart failure, and cognitive impairments (e.g., dementia or delirium), which may adversely affect their ability to participate in active rehabilitation. These factors negatively affect clinical outcomes, and many elderly stroke survivors require long-term care despite the early implementation of intensive therapy.
Source: Journal of Stroke and Cerebrovascular Diseases - December 25, 2021 Category: Neurology Authors: Ichiro Deguchi, Takashi Osada, Shinichi Takahashi Source Type: research

Dabigatran for Japanese Patients with Atrial Fibrillation and Prior Stroke: A Subgroup Analysis of the J-Dabigatran Surveillance Program
Background: The study objective was to evaluate long-term safety and effectiveness of dabigatran 110 mg and 150 mg twice daily (bid) in patients with nonvalvular atrial fibrillation (NVAF) with a focus on secondary stroke prevention. Methods: In J-Dabigatran Surveillance, 6772 patients newly initiated on dabigatran to prevent ischemic stroke and systemic embolism were enrolled in Japan (1042 sites, December 2011 to November 2013). This subgroup analysis included patients with (1302) and without (5071) previous stroke/transient ischemic attack (TIA).
Source: Journal of Stroke and Cerebrovascular Diseases - February 25, 2020 Category: Neurology Authors: Masahiro Yasaka, Shinichiro Uchiyama, Hirotsugu Atarashi, Ken Okumura, Yukihiro Koretsune, Takeshi Yamashita, Atsushi Taniguchi, Taku Fukaya, Hiroshi Inoue, for the J-Dabigatran Surveillance Investigators Tags: Original article Source Type: research

Outcome of Acute Ischemic Stroke after the Treatment with Edaravone and 0.6 Mg/Kg Alteplase in Japanese Patients with Diabetes
We investigated how diabetes mellitus (DM) affects the outcome of acute ischemic stroke (AIS), comparing with the outcomes in those who had hypertension (HT) and atrial fibrillation (AF).
Source: Journal of Stroke and Cerebrovascular Diseases - January 18, 2018 Category: Neurology Authors: Norio Tanahashi, Takenori Yamaguchi, Hideto Awano, Hiroaki Matsuda Source Type: research

Secondary stroke prevention with apixaban in nonvalvular atrial fibrillation: A subgroup analysis of the STANDARD study
Data on independent risk factors for stroke recurrence in Japanese patients with nonvalvular atrial fibrillation are limited.
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Masahiro Yasaka, Michiaki Umeyama, Hirohide Kataoka, Hiroshi Inoue Source Type: research

Intravenous Thrombolysis in Posterior Circulation Stroke
Conclusions: Up to date, no data about PCIS and IVT are available from RTCs. Based on limited results from retrospective clinical studies and case series, IVT is safer for use in PCIS than in ACIS. Patients with brainstem ischemia, vertebral artery occlusion, and absence of basilar or posterior cerebral artery occlusion could be considered for treatment with IVT even in borderline cases. Time to IVT in PCIS seems to be a less crucial factor than in ACIS. IVT for PCIS may be beneficial even after 4.5 h from symptom onset. Introduction History of Intravenous Thrombolysis—The Most Relevant Studies Intravenous...
Source: Frontiers in Neurology - April 25, 2019 Category: Neurology Source Type: research

Validation of the R2CHADS2 and CHADS2 Scores for Predicting Post-stroke Cognitive Impairment.
Conclusion These results suggest that the R2CHADS2 and CHADS2 scores are useful for predicting post-stroke cognitive impairment. PMID: 28924104 [PubMed - as supplied by publisher]
Source: Internal Medicine - September 21, 2017 Category: Internal Medicine Tags: Intern Med Source Type: research

Two-Year Outcomes of Anticoagulation for Acute Ischemic Stroke With Nonvalvular Atrial Fibrillation 　- SAMURAI-NVAF Study.
CONCLUSIONS: Stroke/TIA patients receiving DOACs for secondary prevention were younger and had lower stroke severity and risk indices than those receiving warfarin. Estimated cumulative incidences of stroke and systemic embolism within 2 years were similar between warfarin and DOACs users, but those of death and intracranial hemorrhage were significantly lower among DOAC users. PMID: 29863095 [PubMed - as supplied by publisher]
Source: Circulation Journal - June 1, 2018 Category: Cardiology Authors: Yoshimura S, Koga M, Sato S, Todo K, Yamagami H, Kumamoto M, Itabashi R, Terasaki T, Kimura K, Yagita Y, Shiokawa Y, Kamiyama K, Okuda S, Okada Y, Takizawa S, Hasegawa Y, Kameda T, Shibuya S, Nagakane Y, Ito Y, Matsuoka H, Takamatsu K, Nishiyama K, Fujita Tags: Circ J Source Type: research

Impact of atrial high-rate episodes on the risk of future stroke.
CONCLUSIONS: Embolic stroke events are common in Japanese patients with CIEDs. AF events lasting ≥30s and an enlarged left atrium are the risk factors of embolic stroke in this population. PMID: 30728105 [PubMed - as supplied by publisher]
Source: Journal of Cardiology - February 3, 2019 Category: Cardiology Authors: Nakano M, Kondo Y, Nakano M, Kajiyama T, Hayashi T, Ito R, Takahira H, Kobayashi Y Tags: J Cardiol Source Type: research

Prediction of recurrent stroke among ischemic stroke patients with atrial fibrillation: Development and validation of a risk score model
ConclusionsNeither conventional risk stratification tools nor our newly developed comprehensive prediction model using available clinical factors seemed to be suitable for identifying patients at high risk of recurrent ischemic stroke among AIS patients with AF in this modern direct oral anticoagulant era. Detailed individual information, including imaging, may be warranted to build a more robust and precise risk prediction model for stroke survivors with AF.
Source: PLoS One - October 8, 2021 Category: Biomedical Science Authors: Beom Joon Kim Source Type: research

Developing a Stroke Risk Prediction Model Using Cardiovascular Risk Factors: The Suita Study
Conclusion: We developed a new stroke risk model for the urban general population in Japan. Further research to determine the clinical practicality of this model is required.Cerebrovasc Dis
Source: Cerebrovascular Diseases - November 29, 2021 Category: Neurology Source Type: research

Design and rationale of the STroke secondary prevention with catheter ABLation and EDoxaban clinical trial in patients with non-valvular atrial fibrillation: The STABLED study.
CONCLUSION: This study will investigate the effectiveness and safety of CA and basic anticoagulation treatment with edoxaban for patients with NVAF who have suffered a recent ischemic stroke. The aim is to determine the best evidence for an optimal treatment strategy for patients with NVAF and recent stroke. TRIAL REGISTRATION: UMIN000031424/NCT03777631. PMID: 31337525 [PubMed - as supplied by publisher]
Source: Journal of Cardiology - July 19, 2019 Category: Cardiology Authors: Sakamoto Y, Nishiyama Y, Iwasaki YK, Daida H, Toyoda K, Kitagawa K, Okumura K, Kusano K, Hagiwara N, Fujimoto S, Miyamoto S, Otsuka T, Iguchi Y, Kanamaru T, Yamamoto T, Kaburagi J, Kimura T, Matsumoto T, Kimura K, Shimizu W, STABLED Study Investigators Tags: J Cardiol Source Type: research