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Dive into the research topics where Masakazu Nishigaki is active.

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Featured researches published by Masakazu Nishigaki.


Journal of Psychosocial Oncology | 2007

The Influence of Life Stage on Psychosocial Adjustment in Colorectal Cancer Patients

Masakazu Nishigaki; Masatoshi Oya; Masashi Ueno; Masami Arai; Toshiharu Yamaguchi; Tetsuichiro Muto; Keiko Kazuma

Abstract The influence of life stage on psychosocial adjustment and on factors related to this adjustment were examined in post-operative colorectal cancer patients without stoma. PAIS-SR (Psychosocial Adjustment to Illness Scale-Self-Report) was used to assess psychosocial adjustment, and patients were divided into two groups; a senior group (age > 65 years, n =34) and a non-senior group (age < 65 years, n =59) based on cultural features in Japan. Results were compared between two groups for each of the following PAIS domains: “vocational environment,” “domestic environment,” “sexual relationship,” “extended family environment,” “social environment,” and “psychological distress.” Psychosocial adjustment was found to differ by life stage only for “psychological distress” (non-senior vs. senior: 48.6 ± 9.4 vs. 44.7 ± 7.7, p < .05). However, analysis of background factors related to psychosocial adjustment revealed distinct patterns in each life stage. This study suggests that life stage should be considered when attempts are made to improve the psychosocial adjustment among cancer patients.


Advances in preventive medicine | 2011

Impact of a Booklet about Diabetes Genetic Susceptibility and Its Prevention on Attitudes towards Prevention and Perceived Behavioral Change in Patients with Type 2 Diabetes and Their Offspring

Masakazu Nishigaki; Eiko Sato; Ryota Ochiai; Taiga Shibayama; Keiko Kazuma

Background. Offspring of type 2 diabetic patients are at a high risk of type 2 diabetes. Information on diabetes genetic susceptibility and prevention should be supplied to the offspring. Methods. A six-page booklet on diabetes genetic susceptibility and prevention was distributed to 173 patients who ere ordered to hand it to their offspring. The patients answered a self-administered questionnaire on booklet delivery and attitudinal and behavioral changes toward diabetes and its prevention in themselves and their offspring. Results. Valid responses were obtained from 130 patients. Forty-nine patients had actually handed the booklet. Booklet induces more relief than anxiety. From the patients view, favorable attitudinal and/or behavioral changes occurred in more than half of the offspring who were delivered the booklet. Conclusion. The booklet worked effectively on attitudes and behaviors toward diabetes and its prevention both in patients and their offspring. However, the effectiveness of patients as information deliverers was limited.


Diabetic Medicine | 2008

Preventive behaviour in adult offspring of Type 2 diabetic patients and its relationship to parental advice

Masakazu Nishigaki; K. Kobayashi; Y. Abe; N. Seki; T. Yokomura; M. Yokoyama; Keiko Kazuma

Aims  This study was conducted to investigate preventive behaviour of offspring at risk of Type 2 diabetes, particularly focusing on the relationship between patients’ behaviour of giving advice as parents.


Journal of Telemedicine and Telecare | 2017

A culturally tailored Internet cancer support group for Asian American breast cancer survivors: A randomized controlled pilot intervention study

Wonshik Chee; Yaelim Lee; Eun-Ok Im; Eunice Chee; Hsiu-Min Tsai; Masakazu Nishigaki; SeonAe Yeo; Marilyn M. Schapira; Jun James Mao

Introduction The necessity of culturally competent Internet Cancer Support Groups (ICSGs) for ethnic minorities has recently been highlighted in order to increase its attractiveness and usage. The purpose of this study was to determine the preliminary efficacy of a culturally tailored registered-nurse-moderated ICSG for Asian American breast cancer survivors in enhancing the women’s breast cancer survivorship experience. Methods The study included two phases: (a) a usability test and an expert review; and (b) a randomized controlled pilot intervention study. The usability test was conducted among five Asian American breast cancer survivors using a one-month online forum, and the expert review was conducted among five experts using the Cognitive Walkthrough method. The randomized controlled pilot intervention study (a pre-test and post-test design) was conducted among 65 Asian American breast cancer survivors. The data were analysed using content analysis and descriptive and inferential statistics including the repeated ANOVA. Results All users and experts positively evaluated the program and provided their suggestions for the display, educational contents, and user-friendly structure. There were significant positive changes in the support care needs and physical and psychological symptoms (p < 0.05) of the control group. There were significant negative changes in the uncertainty level of the intervention group (p < 0.10). Controlling for background and disease factors, the intervention group showed significantly greater improvements than the control group in physical and psychological symptoms and quality of life (p < 0.10). Discussion The findings supported the positive effects of ICSGs on support care needs, psychological and physical symptoms, and quality of life.


Primary Care Diabetes | 2014

Computer-supported indirect-form lifestyle-modification support program using Lifestyle Intervention Support Software for Diabetes Prevention (LISS-DP) for people with a family history of type 2 diabetes in a medical checkup setting: A randomized controlled trial

Yuri Tokunaga-Nakawatase; Masakazu Nishigaki; Chiemi Taru; Ikuko Miyawaki; Junko Nishida; Shiho Kosaka; Hiromi Sanada; Keiko Kazuma

AIMS To investigate the effect of a computer-supported indirect-form lifestyle-modification program using Lifestyle Intervention Support Software for Diabetes Prevention (LISS-DP), as a clinically feasible strategy for primary prevention, on diet and physical activity habits in adults with a family history of type 2 diabetes. METHODS This was a two-arm, randomized controlled trial: (1) lifestyle intervention (LI) group (n=70); (2) control (n=71). Healthy adults aged 30-60 years with a history of type 2 diabetes among their first-degree relatives were recruited. LI group received three times of lifestyle intervention using LISS-DP during six-month intervention period via mail. RESULTS Lifestyle intervention group showed significantly greater decrease in energy intake six months after baseline, compared to control (-118.31 and -24.79 kcal/day, respectively, p=0.0099, Cohens d=0.22), though the difference disappeared 1 year after from baseline. No difference was found in physical activity energy expenditure. CONCLUSIONS A computer-based, non-face-to-face lifestyle intervention was effective on dietary habits, only during the intervention period. Further examination of the long-term effects of such intervention and physical activity is required.


Pain Management Nursing | 2014

Effects of Aromatherapy Massage on Face-Down Posture-Related Pain After Vitrectomy: A Randomized Controlled Trial

Naho Adachi; Minako Munesada; Noriko Yamada; Haruka Suzuki; Ayano Futohashi; Takashi Shigeeda; Satoshi Kato; Masakazu Nishigaki

Postoperative face-down posturing (FDP) is recommended to optimize the effects of intraocular gas tamponade after vitrectomy. However, patients undergoing FDP usually experience physical and psychological burdens. This 3-armed, randomized, single-center trial investigated the effects of aromatherapy on FDP-related physical pain. Sixty-three patients under FDP were randomly allocated to one of three treatment groups: aromatherapy massage with essential oil (AT), oil massage without essential oil (OT), and a control group. The AT and OT groups received 10 minutes of massage by ward nurses trained by an aromatherapist, while the control group received usual care. Outcomes were assessed as short-term (pre- to post-intervention) and long-term (first to third postoperative day) changes in physical pain in five body regions using face-scale. The AT and OT groups both revealed similar short-term pain reductions after intervention, compared with the control group. Regarding long-term effects, neither group experienced significant effects until the second day. Significantly more pain reduction compared with usual care occurred on the third day, mainly in the AT group, though there were few significant differences between the AT and OT groups. In conclusion, this study suggests that simple oil massage is an effective strategy for immediate pain reduction in patients undergoing FDP, while aromatherapy may have a long-term effect on pain reduction.


Journal of Health Psychology | 2011

Influence of dietary therapy appraisal on future perceived control of type 2 diabetes

Taiga Shibayama; Eiko Sato; Masakazu Nishigaki; Ryota Ochiai; Keiko Kazuma

We sought to elucidate the causal effect of patients’ self-appraisal of their dietary regimen on their control beliefs among adults with type 2 diabetes. Data from 176 outpatients were assessed using a two-wave cross-lagged panel model. We found that a cross-lagged path connecting dietary appraisal at baseline to perceived control at one year (β = .30, p = .003) was larger than a path connecting perceived control at baseline to dietary appraisal at one year (β = —.16, p = .07). We conclude that dietary appraisal has a feedback effect on the future perceived control of type 2 diabetes.


BMC Geriatrics | 2013

Care managers' confidence in managing home-based end-of-life care: a cross-sectional study

Maiko Watanabe; Noriko Yamamoto-Mitani; Masakazu Nishigaki; Yuko Okamoto; Ayumi Igarashi; Miho Suzuki

BackgroundThere are increasing occasions for care managers (CMs) to manage end-of-life (EOL) situations for older persons at home, in Japan. However, many CMs report anxiety, difficulties and low confidence in managing such care, although confidence is considered a significant determinant of professional performance. This study examined the confidence of CMs at managing home-based EOL situations and its factors.MethodsParticipants of this cross-sectional study were CMs from 1,200 homecare agencies in Japan, which were systematically sampled from a national database. Participants were asked about their overall confidence in managing home-based EOL situations, as well as their demographic, professional and agency characteristics. Multiple logistic regression analysis was conducted to examine the factors associated with CM confidence levels.ResultsValid responses were obtained from 458 participants (response rate, 39.4%). Among the respondents, 81.0% (n = 371) were female; mean age 49.2 years old (standard deviation = 8.8). Their professional backgrounds included nurses (28.2%), care workers (49.8%), social workers (10.9%), and home attendants (6.1%). Approximately 70% of CMs expressed some level of confidence in managing home-based EOL situations. Multiple logistic regression analysis showed that being confident was significantly associated with having a nursing license (OR: 2.71, 95% CI: 1.26–6.19) and having an additional work responsibility other than being a CM, such as working as a homecare nurse or a home attendant (OR: 2.78, 95% CI: 1.06–4.74). Higher confidence levels were more frequently reported among those who had multiple experiences with EOL situations, compared with those who had none, or only one experience: OR=2.60 (95% CI 1.26–5.50) for those with 2-3 cases; OR=7.12 (3.21–16.56) for those with 4-10 cases; OR = 33.67 (8.14–235.19) for those with 11 cases and over.ConclusionsThese results suggest that CMs with direct, hands-on experience with EOL care, or who have managed multiple EOL cases, tended to be confident at managing home-based EOL situations. Given that the number of nurses working as CMs is decreasing, further research is needed to explore what support CMs need to increase their confidence, especially when the CMs do not have nursing licenses and/or experience with EOL situations.


Journal of Transplantation | 2011

Knowledge and Demand for Information about Islet Transplantation in Patients with Type 1 Diabetes

Yuko Yamamoto; Masakazu Nishigaki; Naoko Kato; Michio Hayashi; Teruo Shiba; Yasumichi Mori; Tetsuro Kobayashi; Keiko Kazuma

This cross-sectional study based on self-administrated questionnaire was conducted to investigate knowledge, related factors, and sources of information regarding islet transplantation in patients with type 1 diabetes in Japan. Among 137 patients who provided valid responses, 67 (48.9%) knew about islet transplantation. Their main source of information was newspapers or magazines (56.7%) and television or radio (46.3%). However, 85.8% of patients preferred the attending physician as their source of information. Although more than half of the patients were correctly aware of issues related to islet transplantation, the following specific issues for islet transplantation were not understood or considered, and there was little knowledge of them: need for immunosuppressants, lifestyle and dietary adaptations, fewer bodily burdens, and complications. The experience of hypoglycaemia, a high level of academic background, frequent self-monitoring of blood glucose, and the use of continuous subcutaneous insulin infusion were related to higher knowledge about islet transplantation.


Stroke | 2017

Assessment Model to Identify Patients With Stroke With a High Possibility of Discharge to Home: A Retrospective Cohort Study

Takahiro Itaya; Yusuke Murakami; Akiko Ota; Eiichi Nomura; Tomoko Fukushima; Masakazu Nishigaki

Background and Purpose— Discharge planning for inpatients with acute stroke can enhance reasonable use of healthcare resources, as well as improve clinical outcomes and decrease financial burden of patients. Especially, prediction for discharge destination is crucial for discharge planning. This study aimed to develop an assessment model to identify patients with a high possibility of discharge to home after an acute stroke. Methods— We reviewed the electronic medical records of 3200 patients with acute stroke who were admitted to a stroke center in Japan between January 1, 2011, and December 31, 2015. The outcome variable was the discharge destination of postacute stroke patients. The predictive variables were identified through logistic regression analysis. Data were divided into 2 data sets: the learning data set (n=2240) for developing the instrument and the test data set (n=960) for evaluating the predictive capability of the model. Results— In all, 1548 (48%) patients were discharged to their homes. Multiple logistic regression analysis identified 5 predictive variables for discharge to home: living situation, type of stroke, functional independence measure motor score on admission, functional independence measure cognitive score on admission, and paresis. The assessment model showed a sensitivity of 85.0% and a specificity of 75.3% with an area under the curve equal to 0.88 (95% confidence interval, 0.86–0.89) when the cutoff point was 10. On evaluating the predictive capabilities, the model showed a sensitivity of 88.0% and a specificity of 68.7% with an area under the curve equal to 0.87 (95% confidence interval, 0.85–0.89). Conclusions— We have developed an assessment model for identifying patients with a high possibility of being discharged to their homes after an acute stroke. This model would be useful for health professionals to adequately plan patients’ discharge soon after their admission.

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Eunice Chee

University of Pennsylvania

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Jun James Mao

Memorial Sloan Kettering Cancer Center

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Kazuhiro Takamatsu

Memorial Hospital of South Bend

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SeonAe Yeo

University of North Carolina at Chapel Hill

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Shinichi Takeshima

Memorial Hospital of South Bend

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