Masashi Yamashita

Mr. Masashi Yamashita

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in Clinical Nutrition
Verified
Journal Article
Closed access
YKYoshifumi Kootaka
Yoshifumi Kootaka
KKKentaro Kamiya
Kentaro Kamiya
NHNobuaki Hamazaki
Nobuaki Hamazaki
KNKohei Nozaki
Kohei Nozaki
TITakafumi Ichikawa
Takafumi Ichikawa
JAJunya Ako
Junya Ako

1 December 2017 in Canadian Journal of Cardiology
Verified
Journal Article
Closed access
MYMasashi Yamashita
Masashi Yamashita
KKKentaro Kamiya
Kentaro Kamiya
AMAtsuhiko Matsunaga
Atsuhiko Matsunaga
TKTadashi Kitamura
Tadashi Kitamura
NHNobuaki Hamazaki
Nobuaki Hamazaki
KMKagami Miyaji
Kagami Miyaji

22 January 2020 in Heart and Vessels
Verified
Journal Article
Closed access
PDF file
SUShota Uchida
Shota Uchida
KKKentaro Kamiya
Kentaro Kamiya
NHNobuaki Hamazaki
Nobuaki Hamazaki
RMRyota Matsuzawa
Ryota Matsuzawa
KNKohei Nozaki
Kohei Nozaki
JAJunya Ako
Junya Ako

23 August 2019 in Circulation Journal
Verified
Journal Article
Closed access
PDF file
Shinya TanakaShinya Tanaka
Shinya Tanaka
KKKentaro Kamiya
Kentaro Kamiya
NHNobuaki Hamazaki
Nobuaki Hamazaki
RMRyota Matsuzawa
Ryota Matsuzawa
KNKohei Nozaki
Kohei Nozaki
JAJunya Ako
Junya Ako
Background:Evidence for the prognostic value of gait speed is largely based on a single measure at baseline, so we investigated the prognostic significance of change in gait speed in hospitalized older acute heart failure (AHF) patients.Methods and Results:This retrospective study was performed in a cohort of 388 AHF patients ≥60 years old (mean age: 74.8±7.8 years, 228 men). Routine geriatric assessment included gait speed measurement at baseline and at discharge. The primary outcome of this study was all-cause death. Gait speed increased from 0.74±0.25 m/s to 0.98±0.27 m/s after 13.5±11.0 days. Older age, shorter height and lower hemoglobin level at admission, prior HF admission, and higher baseline gait speed were independently associated with lesser improvement in gait speed. A total of 80 patients died and 137 patients were readmitted for HF over a mean follow-up period of 2.1±1.9 years. In multivariate analyses, change in gait speed showed inverse associations with all-cause death (hazard ratio [HR] per 0.1 m/s increase: 0.83; 95% confidence interval [CI]: 0.73 to 0.95; P=0.006) and with risk of readmission for HF (HR: 0.91; 95% CI: 0.83 to 0.99; P=0.036).Conclusions:Short-term improvement in gait speed during hospitalization was associated with reduced risks of death and readmission for HF in older patients with AHF.

1 January 2020 in Respiratory Medicine
Verified
Journal Article
Closed access
NHNobuaki Hamazaki
Nobuaki Hamazaki
KKKentaro Kamiya
Kentaro Kamiya
RMRyota Matsuzawa
Ryota Matsuzawa
KNKohei Nozaki
Kohei Nozaki
TITakafumi Ichikawa
Takafumi Ichikawa
JAJunya Ako
Junya Ako

1 November 2021 in Journal of Cardiac Failure
Verified
Journal Article
Open access
HOHiroaki Obata
Hiroaki Obata
TITohru Izumi
Tohru Izumi
MYMasashi Yamashita
Masashi Yamashita
WMWataru Mitsuma
Wataru Mitsuma
KSKeisuke Suzuki
Keisuke Suzuki
MIMitsuaki Isobe
Mitsuaki Isobe
To assess the healthcare burden of elderly patients with heart failure (HF) in an aging Japanese community-based hospital, we investigated the outcomes of cardiac rehabilitation. We enrolled all patients with HF aged ≥65 years admitted to three hospitals in the Niigata Prefecture. We prospectively collected data on their hospital stays and two-year post-discharge. The cohort comprised 617 patients (46.5% men; mean age 84.7 years), 76.2% of whom were aged ≥80 years. Among these patients, 15.6% were nursing home residents, 57.7% required long-term care insurance, only 37.6% could walk unaided on admission, and 70.5% required cardiac rehabilitation; age had no significant rehabilitative effect on the degree of improvement in activities of daily living (ADL). Two years post-discharge, all-cause mortality, and HF rehospitalization were 41.1% and 38.6%, respectively. The ADL score at discharge was an independent prognostic factor for mortality. The incidence of mortality and rehospitalization was lower in elderly patients with preserved ADLs at discharge. Elderly patients with HF in our super-aged society were mainly octogenarians that required disease management and personalized care support. Although their ADL scores increased with comprehensive cardiac rehabilitation, improved scores at discharge were closely associated with prognosis.