1.Exploring physical and functional factors associated with lateral ankle sprains in junior high school basketball players
Shun NUMASAWA ; Kazuhiro HARADA ; Nobuyuki NAKAMURA ; Masafumi TERADA
Japanese Journal of Physical Fitness and Sports Medicine 2023;72(4):315-322
Lateral ankle sprain (LAS) is one of the most common sport-related injuries among basketball players. Most basketball players experience a first LAS particularly in junior high school. Thus, it is crucial to develop effective prevention strategies for LAS in junior high school populations. However, the characteristics for first-time LAS are not clear. This study aimed to compare the physical and functional characteristics of junior high school basketball players with and without a history of LAS. Two hundred and thirty-eight junior high school basketball players (128 boys and 110 girls) volunteered for this study. We asked participants to complete a self-reported injury history questionnaire. We also assessed physical functions, including range of motion, muscular strength, dynamic balance, and performance. The prevalence of LAS was 75.6% (boys: 73.4%, girls: 78.2%). Boys with a history of LAS had significantly higher height, body mass, and BMI compared to those without a history of LAS (p<0.05). Girls with a history of LAS had significantly lower scores on the star excursion balance test in the anterior reaching direction compared with the control group (p=0.015). Various measures of physical function were associated with LAS, but these associations were different between boys’ and girls’ basketball players. These findings from this study indicate that clinicians should identify sex-specific impairments associated with LAS when designing targeted intervention programs.
2.Coronal Plane Gap Increases Postoperative Pseudoarthrosis after Lateral Interbody Fusion for Adult Spinal Deformity
Eijiro OKADA ; Mitsuru YAGI ; Yusuke YAMAMOTO ; Satoshi SUZUKI ; Satoshi NORI ; Osahiko TSUJI ; Narihito NAGOSHI ; Nobuyuki FUJITA ; Masaya NAKAMURA ; Morio MATSUMOTO ; Kota WATANABE
Asian Spine Journal 2022;16(3):386-393
Methods:
This study included 42 patients with ASD (two men and 40 women; 112 segments; mean, 68.5±8.4 years; and mean follow-up, 31.6±17.0 months) who underwent LIF and posterior correction surgery. The concave slot of the LIF cage was filled with an autologous iliac crest bone graft (IBG), and the convex slot with a porous hydroxyapatite/collagen (HAp/Col) composite was soaked with bone marrow aspirate. Endplate injury, the gap between vertebral endplate and cage in the coronal or sagittal plane, and fusion status were evaluated using computed tomography multiplanar reconstruction at 12 months after surgery. Moreover, the associated risk factors for pseudoarthrosis were analyzed.
Results:
Fusion at LIF segments were observed in 71.4% segments at 12 months after surgery. Fusion on the concave slot (autologous IBG side), convex slot (porous HAp/Col composite side), and both concave and convex slots were observed in 66.1%, 37.5%, and 36.6% of patients, respectively. Moreover, pseudoarthrosis was observed in 28.6% at 12 months after surgery. Consequently, logistic regression analysis of the fusion at the LIF segment revealed that the gap between the LIF cage and endplate in the coronal plane (p=0.030; odds ratio, 0.183; 95% confidence interval, 0.030–0.183) was significantly associated with pseudoarthrosis at the LIF segments.
Conclusions
ASD surgery fusion rate using LIF cages was 71.4% at 12 months after surgery. The fusion rate was higher on the concave slot filled with autologous IBG than on the convex slot filled with a porous HAp/Col composite. The gap in the coronal plane was a risk factor for pseudoarthrosis at the LIF segment.
3.Effectiveness of Duloxetine for Postsurgical Chronic Neuropathic Disorders after Spine and Spinal Cord Surgery
Osahiio TSUJI ; Shizuko KOSUGI ; Satoshi SUZUKI ; Satoshi NORI ; Narihito NAGOSHI ; Eijiro OKADA ; Nobuyuki FUJITA ; Mitsuru YAGI ; Masaya NAKAMURA ; Morio MATSUMOTO ; Kota WATANABE
Asian Spine Journal 2021;15(5):650-658
Methods:
A total of 24 patients with postsurgical chronic pain and/or numbness Numeric Rating Scale (NRS) scores of ≥4 were enrolled. All patients underwent spine or spinal cord surgery at Keio University Hospital and received daily administration of DLX for more than 3 months. The mean postoperative period before the first administration of DLX was 35.5±57.0 months. DLX was administered for more than 3 months at a dose of 20, 40, or 60 mg/day, and the degree of pain and numbness was evaluated using the NRS before administration and 3 months after administration. Effectiveness was defined as more than a 2-point decrease in the NRS score following administration.
Results:
In terms of the type of symptoms, 15 patients experienced only numbness, eight experienced both pain and numbness, and one experienced only pain. Of the 24 patients, 19 achieved effective relief with DLX. DLX was effective for all patients with postsurgical chronic pain (n=9), and it reduced postsurgical chronic numbness in 18 of 23 patients. No significant difference was observed in background spinal disorders. DLX was not effective for five patients who complained only of postsurgical chronic numbness.
Conclusions
This study reports the effectiveness of DLX for postsurgical chronic neuropathic disorders. Although DLX reduced postsurgical chronic pain (efficacy rate=100%) and numbness (78.3%) in certain patients, further investigation is needed to determine its optimal use.
4.Activities to Learn The Importance of Advance Care Planning from The Perspective of Emergency Medicine
Nobuyuki UCHIDA ; Yoko SHIMAMURA ; Akiko NAKAMURA ; Tetsuya HOSHINO ; Toru MARUHASHI ; Toshihiro NAKAJIMA ; Keiichi YAMADA ; Shouichi SAITOU ; Akira SUNOHARA
An Official Journal of the Japan Primary Care Association 2020;43(2):70-72
5.Poor Prognostic Factors for Surgical Treatment of Spinal Intramedullary Ependymoma (World Health Organization Grade II)
Osahiko TSUJI ; Narihito NAGOSHI ; Ryota ISHII ; Satoshi NORI ; Satoshi SUZUKI ; Eijiro OKADA ; Nobuyuki FUJITA ; Mitsuru YAGI ; Morio MATSUMOTO ; Masaya NAKAMURA ; Kota WATANABE
Asian Spine Journal 2020;14(6):821-828
Methods:
Eighty patients who underwent surgical resection at Keio University and Fujita Health University in Tokyo, Japan between 2003 and 2015 with more than 2 years of follow-up were enrolled. A good surgical result was defined as an improvement in the modified McCormick Scale score by one grade or more or having the same clinical grade as was observed preoperatively. Meanwhile, a poor result was defined as a reduction in the McCormick Scale score of one grade or more or remaining in grade IV or V at final follow-up. Univariate and multivariate logistic regression analyses of the following factors were performed in the two groups: sex, age, preoperative Visual Analog Scale (VAS), tumor location, the extent of tumor resection, hemosiderin caps, cavity length, and tumor length on magnetic resonance imaging.
Results:
At final follow-up, 15 patients were included in the poor results group and 65 in the good results group. In the univariate analysis, the factors related to poor results were as follows: higher age, preoperative McCormick Scale score severity, higher preoperative VAS, thoracic location, hemosiderin capped, and non-gross total resection (GTR). A multiple logistic regression analysis was conducted and showed that age, worse preoperative McCormick Scale score, and non-GTR were significant factors for poor prognosis.
Conclusions
The independent risk factors for motor deterioration after ependymoma resection were age, worse preoperative McCormick Scale score, and non-GTR. Early surgery for patients with even mild neurological disorders could facilitate functional outcomes. These results may contribute to determining the optimal timing of surgery for spinal intramedullary ependymoma.
6.Evaluation of an Automatic Vigilance System for Detecting Adverse Drug Reactions from Electronic Medical Records
Toshiaki IGARASHI ; Aya KONNO ; Hitoshi TSUKAMOTO ; Ryoichi YANO ; Kyohei WATANABE ; Toshiaki NAKAMURA ; Mikio MASADA ; Nobuyuki GOTO
Japanese Journal of Drug Informatics 2018;20(2):66-71
Objective: We have developed an automatic vigilance system (AVS) that automatically reports adverse drug reactions (ADR) based on laboratory finding abnormalities and symptom keywords in electronic medical records. In this study, we aimed to evaluate the impact of detecting ADR using AVS on medical treatment.Methods: In AVS, drugs and their ADR signals, which would be detected and reported by AVS to pharmacists, were defined. Pharmacists evaluated the severity of these signals to identify whether these signals should be discussed with the doctor, continued to be followed up, or ignored. We investigated detection of ADR at University of Fukui Hospital between April 2016 and March 2017 along with whether prescriptions were modified because of ADR and the contribution of AVS. Assuming that ADR had worsened without appropriate treatment, medical expenses needed for treating severe ADR were calculated.Results: In total, 325 signals were defined for 146 drugs. There were 9,103 ADR signals confirmed by pharmacists for 8,531 subjects. Of these, 12 and 164 signals were discussed with the doctor and continuously observed, respectively. The pharmacist's suggestions based on AVS led to prescription modifications in 10 cases, corresponding to a reduction of 2.56 million yen in medical expenses in the event that these cases become severe.Conclusion: AVS assisted prescription revisions because of ADR and is thought to contribute to the prevention of worsening of ADR and reduction of medical expenses.
7.NUDT15, FTO, and RUNX1 genetic variants and thiopurine intolerance among Japanese patients with inflammatory bowel diseases.
Toshiyuki SATO ; Tetsuya TAKAGAWA ; Yoichi KAKUTA ; Akihiro NISHIO ; Mikio KAWAI ; Koji KAMIKOZURU ; Yoko YOKOYAMA ; Yuko KITA ; Takako MIYAZAKI ; Masaki IIMURO ; Nobuyuki HIDA ; Kazutoshi HORI ; Hiroki IKEUCHI ; Shiro NAKAMURA
Intestinal Research 2017;15(3):328-337
BACKGROUND/AIMS: Recent genome-wide analyses have provided strong evidence concerning adverse events caused by thiopurine drugs such as azathioprine (AZA) and 6-mercaptopurine. The strong associations identified between NUDT15 p.Arg139Cys and thiopurine-induced leukopenia and severe hair loss have been studied and confirmed over the last 2 years. However, other coding variants, including NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, and FTO p.Ala134Thr, and a noncoding variation in RUNX1 (rs2834826) remain to be examined in detail in this respect. Therefore, we investigated the correlation between these adverse events and the 5 recently identified variants mentioned above among Japanese patients with inflammatory bowel diseases (IBD). METHODS: One hundred sixty thiopurine-treated patients with IBD were enrolled. Genotyping was performed using TaqMan SNP Genotyping Assays or Sanger sequencing. RESULTS: None of the 5 variants were associated with gastrointestinal intolerance to AZA. However, NUDT15 p.Arg139Cys was significantly associated with the interval between initiation and discontinuation of AZA among patients with gastrointestinal intolerance. This variant was strongly associated with early (<8 weeks) and late (≥8 weeks) leukopenia and severe hair loss. Moreover, it correlated with the interval between initiation of thiopurine therapy and leukopenia occurrence, and average thiopurine dose. NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, FTO p.Ala134Thr, and RUNX1 rs2834826 exhibited no significant relationship with the adverse events examined. CONCLUSIONS: Of the 5 variants investigated, NUDT15 p.Arg139Cys had the strongest impact on thiopurine-induced leukopenia and severe hair loss; therefore, its genotyping should be prioritized over that of other variants in efforts to predict these adverse events in Japanese patients with IBD.
6-Mercaptopurine
;
Asian Continental Ancestry Group*
;
Azathioprine
;
Clinical Coding
;
Hair
;
Humans
;
Inflammatory Bowel Diseases*
;
Leukopenia
8.Elderly people's thoughts about surrogate decision making in end-of-life care : Increasing trust through communication in the primary care
Nobuyuki Maki ; Kazue Kosugi ; Tomoka Nagashima ; Misuzu Nakamura
An Official Journal of the Japan Primary Care Association 2016;39(3):150-156
Introduction : The purpose of this study was to approach issues related to end-of-life care by investigating elderly people's own thoughts about surrogate decision making by family members.
Methods : Semi-structured interviews were carried out with 30 elderly people 60 years of age and older to determine whether or not they trust in surrogate decision making by their family members, and to examine the reasons for their thoughts. Each of the respondents' statements were categorized by level of confidence, and their reasons were analyzed.
Results : Respondents were divided into two main groups : a “trusting” group and an “anxious” group. Seventy percent of respondents were in the “trusting” group. In both groups, the most common reason given was related to the desire to directly communicate one's wishes to one's surrogates. Following that, in the “trusting group”, the main reasons were related to the thoughts of the interviewee and the characteristics of the surrogates. In the “anxious group”, the main reasons were issues of end-of-life care related to the feelings of surrogates, the attitude of medical staff, and other background factors.
Conclusion : To resolve issues of surrogate decision making related to end-of-life care, it is important in primary care practice to provide encouragement and support to elderly people to allow them to clearly communicate their wishes. We recommend further study and ethical discussion about end-of-life care to establish appropriate legal and institutional frameworks.
9.Development of Code System for Generic Drug Information
Miki Takase ; Fumiko Ohtsu ; Nobuyuki Goto ; Toshiaki Nakamura ; Mikio Masada
Japanese Journal of Drug Informatics 2011;13(3):113-118
Objective: In recent years, the Ministry of Health, Labor and Welfare has actively promoted the use of generic drugs. However, implementation of this policy has not progressed smoothly, as information on generic drugs is poorly organized. As a result, it is difficult for pharmacists to select the appropriate generic drugs. Therefore, we attempted to develop a code system to organize information on generic drugs.
Methods: We analyzed the guidelines used for the approval of generic drugs. We then identified the important aspects for comparison of generic drugs and developed a code system. Next, we tested this code system using temocapril hydrochloride tablets, which is a generic drug.
Results: We were able to develop a code system for selection of generic drugs. Furthermore, we confirmed the utility of this code system for selecting generic drugs in the case of temocapril hydrochloride tablets.
Conclusion: We believe that this code system with be useful for pharmacists, but further development is necessary for other generic drugs.
10.Botulinum Toxin Treatment prior to Posterior Spinal Fusion for Cervical Spondylotic Myelopathy in Patients with Athetoid Cerebral Palsy : A Report on Two Cases
Nobuyuki SHIMOKAWA ; Hidetoshi IKEDA ; Yoshihiko FU ; Kazuhito NAKAMURA
The Japanese Journal of Rehabilitation Medicine 2010;47(8):569-575
There have been several reports on surgical interventions in patients with adult cervical spondylotic myelopathy associated with cerebral palsy. We performed posterior fusion with pedicle and/or lateral mass screws combined with preoperative intramuscular injections of botulinum toxin in two patients. Two weeks before the surgery, we injected the patients with the botulinum toxin to alleviate cervical pain and to reduce the involuntary movement associated with cerebral palsy. Surgical results were good in both patients without rigid external fixation. Both patients were able to undergo rehabilitation after the surgery as soon as possible without any complication. We think that our pre surgical treatment with botulinum toxin is a useful optional treatment for cervical spondylotic myelopathy associated with cerebral palsy.


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