Publications by authors named "Masaki Arai"

This paper presents a system for unobtrusive monitoring of physiological signals of a car driver. It comprises three sensor modalities that conduct measurements through clothes: a Magnetic induction sensor for respiration monitoring, and a reflective Photoplethysmograph as well as a capacitive Electrocardiograph for cardiac monitoring. The sensor system has been attached to the driver seat of a car and a healthy subject was asked to drive through the busy streets of Tokyo while monitored.

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Background: This study aimed to determine real-world prescribing patterns and determinants for Japanese patients with Parkinson's disease (PD), with a focus on patients ≥75 years.

Methods: This was a retrospective, observational, longitudinal study of patients with PD (≥30 years, ICD-10: G20 excluding Parkinson's syndrome) from three Japanese nationwide healthcare claim databases. Prescription drugs were tabulated using database receipt codes.

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Article Synopsis
  • The study examines the impact of the COVID-19 pandemic on patients with Parkinson's disease (PD) and their caregivers in Japan, focusing on changes in behaviors, symptoms, and caregiver burden.
  • An observational survey analyzed responses from nearly 2,000 patients and caregivers, revealing that many patients experienced decreased mobility and worsened symptoms during the pandemic.
  • The findings highlight the need for additional support for patients and caregivers during health crises to alleviate the increased burden of care due to worsening symptoms.
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Objective Although diagnostic criteria of Parkinson's disease (PD) have been established, the details of the process by which patients notice symptoms, visit a physician, and receive a diagnosis of PD is unclear. We therefore explored factors influencing latency in diagnosing PD. Methods We performed an internet-based survey of patients with PD and their families as well as physicians treating patients with PD to identify any diagnostic latency and its determinants.

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Background: Rasagiline is a selective, irreversible monoamine oxidase type B inhibitor used as monotherapy in early Parkinson's disease and as an adjunct therapy to levodopa in Parkinson's disease with motor fluctuations.

Objectives: This meta-analysis aimed to provide updated evidence on the efficacy for motor and nonmotor symptoms and the safety of rasagiline/levodopa versus levodopa in patients with Parkinson's disease experiencing motor fluctuations.

Methods: A systematic literature search was conducted (January 18-19, 2021) using PubMed, Cochrane Library, EMBASE, Web of Science, and Google Scholar to identify randomized controlled trials comparing rasagiline/levodopa versus placebo/levodopa in patients with Parkinson's disease experiencing motor fluctuations.

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Objective: This study aimed to gain an understanding of patient and physician satisfaction with overall treatment and routine consultations for Parkinson's disease in clinical practice.

Methods: This observational, cross-sectional, web-based survey was conducted in Japan from February to March 2019. Eligible patients with Parkinson's disease ( = 186) and physicians who treat patients with Parkinson's disease ( = 331) were asked to evaluate their satisfaction with treatment, consultation, symptom control, and use of a symptom diary.

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Background: Identifying the factors that influence health-related quality of life (HRQoL) is of great scientific interest, but a potential causal relationship between treatment and HRQoL has yet to be fully elucidated. Japanese patients reported better HRQoL outcomes on the Parkinson's Disease Questionnaire (PDQ-39) emotional well-being domain, a 6-question subset of the PDQ-39 which is considered to reflect the emotional aspects of the disease-specific HRQoL, when treated with rasagiline, than placebo, in both a monotherapy clinical trial (NCT02337725) and an adjunctive therapy clinical trial in patients with wearing-off phenomena (NCT02337738).

Objective: To investigate how rasagiline exerts its effect on the PDQ-39 emotional well-being domain in Japanese patients with Parkinson's disease.

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Introduction: Parkinson's disease (PD) treatment should follow guidelines and be tailored to each patient. Large database analyses can provide insights into prescribing patterns.

Methods: Retrospective, cross-sectional study of patients (≥30 years) with PD diagnosis (ICD-10; schizophrenia/cerebrovascular disease excluded) using health insurance claims data (April 2008-December 2016) from the Japan Medical Data Vision database.

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Background: Adherence to the 2011 Japanese guidelines for treatment of Parkinson's disease (PD) in real-life practice is unknown.

Methods: In this retrospective longitudinal observational study, we examined patterns and trends in anti-PD drug prescriptions in 20,936 patients (≥30 years of age with newly diagnosed PD [International Classification of Diseases-Tenth code G20 or PD Hoehn and Yahr scale 1-5] and one or more prescriptions) using nationwide registry data between 2008 and 2016. Data are presented as descriptive statistics.

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