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N. Sugiyama · SciRah

Researcher profile · Semantic Scholar

N. Sugiyama

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N. Sugiyama — researcher profile on SciRah

h-index: 10
Works: 37
Citations: 315

Most-cited papers

Influence of patient characteristics on duration of seclusion/restrain in acute psychiatric settings in Japan
T. Noda, N. Sugiyama, Makiko Sato, Hiroto Ito +4 more
2013Psychiatry and Clinical Neurosciences46 citations Open access
Semantic Scholar
Timely follow-up visits after psychiatric hospitalization and readmission in schizophrenia and bipolar disorder in Japan.
Y. Okumura, N. Sugiyama, T. Noda
2018Psychiatry Research30 citations Open access
Semantic Scholar
Lack of association in Japanese patients between neuroleptic malignant syndrome and the TaqI A polymorphism of the dopamine D2 receptor gene
I. Kishida, C. Kawanishi, Taku Furuno, Takehiko Matsumura +5 more
2003Psychiatric Genetics29 citations
Semantic Scholar
Real-world effectiveness of antipsychotic monotherapy and polytherapy in 1543 patients with acute-phase schizophrenia.
K. Hatta, H. Hasegawa, Atsushi Imai, Y. Sudo +12 more
2019Asian Journal of Psychiatry27 citations
Semantic Scholar
A randomized, double-blind, placebo-controlled study of rapid-acting intramuscular olanzapine in Japanese patients for schizophrenia with acute agitation
Hideaki Katagiri, S. Fujikoshi, Takuya Suzuki, K. Fujita +3 more
2013BMC Psychiatry25 citations Open access
Semantic Scholar
Feasibility and efficacy of shared decision making for first-admission schizophrenia: a randomized clinical trial
Mio Ishii, Y. Okumura, N. Sugiyama, H. Hasegawa +3 more
2017BMC Psychiatry21 citations Open access
Semantic Scholar
Psychiatric Admissions and Length of Stay During Fiscal Years 2014 and 2015 in Japan: A Retrospective Cohort Study Using a Nationwide Claims Database
Y. Okumura, N. Sugiyama, T. Noda, H. Tachimori
2018Journal of Epidemiology20 citations Open access
Semantic Scholar
Live two‐way video versus face‐to‐face treatment for depression, anxiety, and obsessive‐compulsive disorder: A 24‐week randomized controlled trial
Taishiro Kishimoto, Shotaro Kinoshita, Momoko Kitazawa, A. Hishimoto +31 more
2023Psychiatry and Clinical Neurosciences17 citations Open access
Semantic Scholar
Characteristics of aggression among psychiatric inpatients by ward type in Japan: Using the Staff Observation Aggression Scale – Revised (SOAS‐R)
Makiko Sato, T. Noda, N. Sugiyama, Fumihiro Yoshihama +2 more
2017International Journal of Mental Health Nursing15 citations
Semantic Scholar
Efficacy of shared decision making on treatment satisfaction for patients with first-admission schizophrenia: study protocol for a randomised controlled trial
Mio Ishii, Y. Okumura, N. Sugiyama, H. Hasegawa +3 more
2014BMC Psychiatry13 citations Open access
Semantic Scholar
Real-world effectiveness of antipsychotic treatments in 1011 acutely hospitalized patients with schizophrenia: A one-year follow-up study.
K. Hatta, Shigemasa Katayama, Takuya Ishizuka, Y. Sudo +11 more
2021Asian Journal of Psychiatry9 citations Open access
Semantic Scholar
Japanese Project for Telepsychiatry Evaluation during COVID-19: Treatment Comparison Trial (J-PROTECT): Rationale, design, and methodology
T. Kishimoto, Shotaro Kinoshita, S. Bun, Yasunori Sato +27 more
2021medRxiv8 citations Open access
Semantic Scholar
Secluded/restrained patients' perceptions of their treatment: Validity and reliability of a new questionnaire
T. Noda, N. Sugiyama, Hiroto Ito, P. Soininen +3 more
2012Psychiatry and Clinical Neurosciences8 citations
Semantic Scholar
Perospirone augmentation of paroxetine in treatment of refractory obsessive-compulsive disorder with depression.
T. Otsuka, T. Togo, N. Sugiyama, Kumi Uehara +4 more
2007Progress in Neuro-psychopharmacology and Biological Psychiatry8 citations
Semantic Scholar
Factors affecting assessment of severity of aggressive incidents: using the Staff Observation Aggression Scale - Revised (SOAS-R) in Japan.
T. Noda, H. Nijman, N. Sugiyama, K. Tsujiwaki +5 more
2012Journal of Psychiatric and Mental Health Nursing7 citations
Semantic Scholar
Proposals for suicide prevention in general hospitals in Japan
C. Kawanishi, S. Iwashita, N. Sugiyama, Momoyo Kawai +2 more
2007Psychiatry and Clinical Neurosciences7 citations
Semantic Scholar
Association of high psychiatrist staffing with prolonged hospitalization, follow-up visits, and readmission in acute psychiatric units: a retrospective cohort study using a nationwide claims database
Y. Okumura, N. Sugiyama, T. Noda, N. Sakata
2018Neuropsychiatric Disease and Treatment6 citations Open access
Semantic Scholar
The recognition and expectations of ex-inpatients of mental health services: A web-based questionnaire survey in Japan
A. Shiina, Yasutaka Ojio, Aiko Sato, N. Sugiyama +2 more
2018bioRxiv6 citations Open access
Semantic Scholar
Switching and augmentation strategies for antipsychotic medications in acute-phase schizophrenia: latest evidence and place in therapy
K. Hatta, N. Sugiyama, Hiroto Ito
2018Therapeutic Advances in Psychopharmacology4 citations Open access
Semantic Scholar
Intracranial self-stimulation-reward induces neurite extension in PC12m3 cells and activation of the p38 MAPK pathway.
Y. Gomita, Satoru Esumi, N. Sugiyama, Y. Kitamura +4 more
2017Neuroscience Letters4 citations
Semantic Scholar
Erratum: A randomized, double-blind, placebo-controlled study of rapid-acting intramuscular olanzapine in Japanese patients for schizophrenia with acute agitation
Hideaki Katagiri, S. Fujikoshi, Takuya Suzuki, K. Fujita +3 more
2014BMC Psychiatry3 citations Open access
Semantic Scholar
Treatment of refractory tardive dyskinesia with donepezil in an elderly patient with depression
A. Yoshimi, T. Togo, N. Sugiyama, Kumi Uehara +3 more
20082 citations Open access
Semantic Scholar
[A clinical trial for developing PICU management scale, a tool reviewing the frequency and use of seclusion and restraint in psychiatric acute care].
N. Sugiyama
2005Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica2 citations
Semantic Scholar
[An extensive survey on suicidal incidence at medical facilities in Japan II--status of suicidal incidents at ordinary hospitals and suggestions for suicide prevention].
C. Kawanishi, N. Sugiyama, S. Iwashita, Momoyo Kawai +1 more
2008Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica1 citations
Semantic Scholar
Double filtration plasma exchange therapy was effective for acute pancreatitis associated with hypertriglyceridemia： A case report
Kentaro Imai, N. Sugiyama, Yoshimichi Urahama, Atsushi Tashiro +4 more
2021Nihon Toseki Igakkai Zasshi0 citations Open access
Semantic Scholar
Involuntary Admission Measure
A. Shiina, Yasutaka Ojio, Aiko Sato, N. Sugiyama +2 more
20200 citations
Semantic Scholar
Evaluation of cognitive and social functioning in patients requiring long-term inpatient psychiatric care using the International Classification of Functioning, Disability, and Health: a large-scale, multi-institutional observational study
Hideaki Kawaguchi, M. Taguchi, M. Sukigara, S. Sakuragi +3 more
2018Disability and Rehabilitation0 citations
Semantic Scholar
The Risk Factors of Prolonged Hospitalization among Psychiatric Acute Care: The 2nd Report-A multi-institutional analysis using the psychiatric inpatient registry
N. Sugiyama, T. Noda, Yutaka Sawa, Tachimori Hisateru +1 more
20170 citations
Semantic Scholar
Time course risk assessment in acute psychiatry settings using a newly scale: A visual analogue scale foe seclusion and restraint
T. Noda, N. Sugiyama, E. Sailas, H. Putkonen +2 more
20160 citations
Semantic Scholar
CKD PATHOPHYSIOLOGY AND CLINICAL STUDIES
I. Kurnatowska, P. Grzelak, Anna Masajtis-Zagajewska, M. Kaczmarska +317 more
20140 citations
Semantic Scholar
[An extensive survey on suicidal incidents at medical facilities in Japan I--suicidal incidents at psychiatric facilities].
N. Sugiyama, S. Iwashita, C. Kawanishi, Momoyo Kawai +1 more
2008Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar
[Current status of health services rendered by the Department of Neurology, Yokohama City University-affiliated Hospital--from the viewpoint of a psychiatric emergency core hospital].
T. Odawara, N. Sugiyama, Yoshio Heian
2007Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar
Suicide attempts at a critical emergency unit: comparison between attempters with/without a history of psychiatric treatment
H. Hasegawa, Takayoshi Yamada, R. Sato, Daiji Kato +7 more
20060 citations
Semantic Scholar
[Joint efforts of emergency psychiatric care and community care network].
N. Sugiyama
2006Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar
Association between neuroleptic malignant syndrome and MDR1 polymorphisms
I. Kishida, C. Kawanishi, Taku Furuno, Daiji Kato +4 more
20060 citations
Semantic Scholar
[Mandatory postgraduate training in psychiatry in Yokohama City University and the affiliated medical facilities under the new system of postgraduate clinical education in Japan].
Reiko Sato, C. Kawanishi, Kazumasa Shiosaki, N. Sugiyama +4 more
2005Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar
A preliminary report of three cases of tardive dystonia induced by neuroleptics, who exhibited rapid improvement after the treatment of a herbal medicine
N. Sugiyama, H. Kimura
19990 citations
Semantic Scholar

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T. Noda×11
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C. Kawanishi×7
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Y. Hirayasu×7
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Hiroto Ito×6
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E. Sailas — researcher profile on SciRah

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H. Putkonen — researcher profile on SciRah

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K. Fujita — researcher profile on SciRah

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Aiko Sato — researcher profile on SciRah

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