2024/10/12 更新

写真a

タカヤマ ツグミ
高山 亜美
TAKAYAMA Tsugumi
所属
医歯学総合病院 検査部 助教
職名
助教
外部リンク

代表的な業績

    • 【論文】 Characteristics of neoplastic cardiac tamponade and prognosis after pericardiocentesis: a single-center study of 113 consecutive cancer patients.  2015年10月

学位

  • 博士(医学) ( 2010年3月   新潟大学 )

経歴

  • 新潟大学   医歯学総合病院 検査部   助教

    2017年7月 - 現在

 

論文

  • 心疾患患者に対する急性転院の試み Cardiac Net(The Trial of Acute Transfer for Patients with Cardiac Disease: Cardiac Net)

    高山 亜美, 石塚 光夫, 加瀬 真弓, 渡辺 光洋, 酒井 亮平, 保屋野 真, 柏村 健, 尾崎 和幸, 猪又 孝元

    日本循環器学会学術集会抄録集   87回   PJ014 - 3   2023年3月

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    記述言語:英語   出版者・発行元:(一社)日本循環器学会  

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  • 肺高血圧症における硝酸イソソルビド単回静注効果の再考

    土谷 浩気, 柏村 健, 熊木 隆之, 石塚 光夫, 渡辺 光洋, 酒井 亮平, 久保田 直樹, 大久保 健志, 藤木 伸也, 高山 亜美, 保屋野 真, 石原 嗣郎, 柳川 貴央, 尾崎 和幸, 猪又 孝元

    日本心臓病学会学術集会抄録   70回   O - 1   2022年9月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 下大静脈フィルター長期留置症例における最適な抗凝固療法による血栓イベントの予防(Optimal Anticoagulation Prevents Thrombotic Events in Cases with Long-term Indwelling of Inferior Vena Cava Filters)

    酒井 亮平, 藤木 伸也, 土谷 浩気, 高山 亜美, 木村 新平, 保屋野 真, 柳川 貴央, 柏村 健, 尾崎 和幸, 大倉 裕二, 猪又 孝元

    日本循環器学会学術集会抄録集   86回   MPJ17 - 4   2022年3月

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    記述言語:英語   出版者・発行元:(一社)日本循環器学会  

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  • 機械的交互脈を認める拡張型心筋症における左室逆リモデリング(Left ventricular Reverse Remodeling in Dilated Cardiomyopathy with Mechanical Alternans)

    渡辺 光洋, 柏村 健, 加瀬 真弓, 酒井 亮平, 藤木 伸也, 高山 亜美, 久保田 直樹, 大久保 健志, 木村 新平, 保屋野 真, 柳川 貴央, 尾崎 和幸, 猪又 孝元, 石塚 光夫

    日本循環器学会学術集会抄録集   86回   PJ47 - 2   2022年3月

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    記述言語:英語   出版者・発行元:(一社)日本循環器学会  

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  • Transcatheter coil embolization for large pulmonary arteriovenous fistulae through an artificial tricuspid ball valve.

    Sei Matsuo, Kazuyuki Ozaki, Yuji Matsuo, Toshiki Takano, Tohru Watanabe, Tatsuhiko Sato, Takuya Yagi, Tsugumi Takayama, Makoto Hoyano, Takao Yanagawa, Takuya Ozawa, Yosuke Horii, Tohru Takano, Takeshi Kashimura, Tohru Minamino

    Journal of cardiology cases   25 ( 1 )   1 - 5   2022年1月

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    記述言語:英語  

    Pulmonary arteriovenous fistulae (PAFs) occur congenitally or are acquired. A PAF can cause hypoxemia, sudden death from rupture, abscess formation, and embolism. Treatment for PAF is transcatheter embolization or surgery. Transcatheter embolization is the first choice of treatment; however, this treatment is impossible to perform if a patient has had tricuspid or pulmonary valve replacement. In this paper, we describe a case of PAFs complicated with tricuspid valve replacement with a ball valve (which had been performed 40 years earlier) that was treated with transcatheter embolization. <Learning objective: Although the ball valve was discontinued more than 40 years ago, it is still the only mechanical valve that allows catheter passage. We report a case of successful treatment of pulmonary arteriovenous fistula by passing a catheter through a ball valve.>.

    DOI: 10.1016/j.jccase.2021.05.006

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  • APC Fontan術後29年で肺塞栓症を発症した一例でのTCPCコンバージョンの適応

    柏村 健, 酒井 亮平, 大久保 健志, 田中 智美, 木村 新平, 高山 亜美, 鈴木 尚真, 石塚 光夫, 加瀬 真弓, 久保田 直樹, 高野 俊樹, 保屋野 真, 柳川 貴央, 尾崎 和幸, 阿部 忠朗, 沼野 藤人, 白石 修一, 南野 徹

    日本成人先天性心疾患学会雑誌   9 ( 1 )   295 - 295   2020年1月

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    記述言語:日本語   出版者・発行元:日本成人先天性心疾患学会  

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  • 大動脈弁置換術、中隔心筋切除術後に残存した左室流出路狭窄に対して経皮的中隔心筋焼灼術が奏功した重症大動脈弁狭窄症の1例

    山口 祐美, 尾崎 和幸, 松尾 聖, 仲尾 政晃, 高野 俊樹, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 名村 理, 南野 徹

    心臓   51 ( 11 )   1192 - 1199   2019年11月

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    記述言語:日本語   出版者・発行元:(公財)日本心臓財団  

    症例は67歳、女性。労作時呼吸困難を主訴に来院した。心エコーでは典型的な大動脈弁狭窄症の所見を認め、連続波ドプラ法では左室大動脈間の圧較差が71mmHgであった。また、左室肥大および僧帽弁収縮期前方運動を認め、左室流出路狭窄を合併していると考えられた。心臓カテーテル検査ではシベンゾリン負荷にて左室流出路狭窄を軽減させた状態で、左室大動脈間平均圧較差は59mmHg、大動脈弁口面積は0.47cm2であった。冠動脈造影では右冠動脈近位部に高度狭窄を認め、冠動脈疾患と左室流出路狭窄を合併した重症大動脈弁狭窄症と診断した。心臓血管外科にて大動脈弁置換術、心筋切除術、冠動脈バイパス術を施行した。術後、心電図は完全左脚ブロックへ変化し、労作時の呼吸困難が残存した。心エコーでは左室流出路に50mmHgの圧較差が残存し、僧帽弁収縮期前方運動も認められた。心臓カテーテル検査の再検ではドブタミン負荷にて左室流出路の圧較差は84mmHgまで上昇した。左室流出路狭窄の残存に対して経皮的中隔心筋焼灼術を施行し、術中に完全房室ブロックとなったが、術後の圧較差はドブタミン負荷でも20mmHgまで低下し、労作時呼吸困難は軽快した。左室流出路狭窄合併の重症大動脈弁狭窄症に対する根治的非薬物治療は、大動脈弁置換術および中隔心筋切除術であるが、左室流出路狭窄の残存に対して経皮的中隔心筋焼灼術が有用である可能性が示唆された。(著者抄録)

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    その他リンク: https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00679&link_issn=&doc_id=20191118160015&doc_link_id=20191118160016&url=http%3A%2F%2Fsearch.jamas.or.jp%2Flink%2Fbc%2F20191118160016&type=jamaslink&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F99999_1.gif

  • Correction to: Future projection of cancer patients with cardiovascular disease in Japan by the year 2039: a pilot study.

    Yuji Okura, Tsugumi Takayama, Kazuyuki Ozaki, Hiroshi Tanaka, Akira Kikuchi, Toshihiro Saito, Toshiki Tanigawa, Yasumasa Takii, Hiroshi Seki, Tatsuya Takenouchi, Takaaki Chou, Nobuaki Sato, Naohito Tanabe, Tohru Minamino

    International journal of clinical oncology   24 ( 8 )   995 - 995   2019年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    n the original publication, in a title of Table 2.

    DOI: 10.1007/s10147-019-01444-8

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  • Future projection of cancer patients with cardiovascular disease in Japan by the year 2039: a pilot study.

    Yuji Okura, Tsugumi Takayama, Kazuyuki Ozaki, Hiroshi Tanaka, Akira Kikuchi, Toshihiro Saito, Toshiki Tanigawa, Yasumasa Takii, Hiroshi Seki, Tatsuya Takenouchi, Takaaki Chou, Nobuaki Sato, Naohito Tanabe, Tohru Minamino

    International journal of clinical oncology   24 ( 8 )   983 - 994   2019年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: The number of cancer patients in Japan is estimated to rise to 3.5 million by 2025. The disease burden may be further complicated by comorbidities caused by cardiovascular disease (CVD). Predicting the number of cancer patients with CVD can help anticipate future resource needs. METHODS: We used statistics derived from the Niigata Cancer Center CVD Study (2015) as well as population estimates from the National Cancer Center's Cancer Registry and Statistics survey of 2017 for convenience. We simply multiplied the projected number of cancer patients through the year 2039 by the CVD prevalence in 2015, with patients classified by sex, age, and cancer type to estimate the number of cancer patients with CVD. RESULTS: The total number of Japanese cancer patients with CVD was 253,000 in 2015 and is predicted to increase rapidly by 30,000 in 2020 and peak at 313,000 in 2030-2034. Men will dominate the CVD population at 2.5-fold the number of women. The growth rate of the population with both cancer and CVD will be greater than that of the cancer-only population (1.23 vs 1.18, P < 0.001), and will comprise notably high proportions of patients with prostatic, breast, and uterine cancers (1.80, 1.57, and 1.66, P < 0.001, respectively). CONCLUSION: Future cancer patients will be older and more likely to have CVD. Although men will continue to dominate this population, the increase in the number of women will be pronounced. Cancer care providers should be trained to recognize CVD and provide any necessary interventions concurrently with cancer therapy.

    DOI: 10.1007/s10147-019-01426-w

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  • Burden of cardiovascular disease in Japanese cancer patients and survivors: a single cancer-center study in Niigata City.

    Yuji Okura, Tsugumi Takayama, Kazuyuki Ozaki, Hiroshi Tanaka, Hiroshi Seki, Tatsuya Takenouchi, Nobuaki Sato, Tohru Minamino

    International journal of clinical oncology   24 ( 2 )   196 - 210   2019年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Cardiovascular disease (CVD) and cancer are major causes of death in Japan. As most CVDs are chronic and often aggravate, long-term follow-up is necessary. Although some cancer patients and survivors have CVD, its prognostic significance and prevalence are unknown. Therefore, we conducted a retrospective study at our center to determine the prevalence of cancer patients with CVD. METHODS: In 2015, our 10-year (2005-2014) cancer registry was summarized. Comorbidities including left ventricular dysfunction, atrial fibrillation (AF), ischemic heart disease, aortic stenosis, venous thromboembolism (VTE), and elevation of N-terminal prohormone of brain natriuretic peptide (NT-proBNP) were examined. RESULTS: In total, 26,235 de novo cancer patients were registered and 16,130 survived until January 1, 2015. The 5-year survival rate was 64.0% for all cancer patients and 44.2% for cancer patients with CVD. Cox proportional hazards analysis adjusting for age, cancer stage, and body mass index revealed that AF [hazard ratio (HR) 1.219, male; P = 0.038], VTE (HR 1.517, male; P = 0.003 and HR 2.089, female; P < 0.001), and NT-proBNP elevation (HR 1.861, female; P = 0.002) were significantly associated with death. The CVD prevalence among cancer survivors in 2015 was 8.7% vs 3.5% for males vs females. AF was the most common CVD (prevalence: male, 4.0%; female, 1.0%). The prevalence of most CVD in adults increased progressively with age, with male predominance (12.1% for male and 7.5% for female patients in the 80 s age group). CONCLUSIONS: One in 10 elderly cancer survivors has serious CVD. AF, VTE, and heart failure were critical comorbidities. Cardiologists and cancer-care providers should recognize CVD presence and monitor patients closely, providing medications or interventions concurrently with cancer therapy.

    DOI: 10.1007/s10147-018-1341-0

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  • 心不全によるサルコペニアから離脱できた1例

    和田 理澄, 木村 新平, 尾崎 和幸, 加瀬 真弓, 西田 耕太, 久保田 直樹, 高野 俊樹, 大久保 健志, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 南野 徹, 三島 健人, 榎本 貴士, 大西 遼, 長澤 綾子, 岡本 竹司, 土田 正則

    新潟医学会雑誌   133 ( 1 )   39 - 39   2019年1月

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    記述言語:日本語   出版者・発行元:新潟医学会  

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  • 虚血性心疾患患者におけるアキレス腱厚と臨床的特徴の関係

    高野 俊樹, 大久保 健志, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹

    日本心臓病学会学術集会抄録   66回   O - 179   2018年9月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • Cabrol graftと両側冠動脈の吻合部狭窄に対して待機的PCIを施行したMarfan症候群の1例

    山口 祐美, 尾崎 和幸, 高野 俊樹, 高山 亜美, 保屋野 真, 柳川 貴央, 岡本 竹司, 小澤 拓也, 柏村 健, 名村 理, 南野 徹

    心臓   50 ( 8 )   902 - 907   2018年8月

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    記述言語:日本語   出版者・発行元:(公財)日本心臓財団  

    症例は60歳、男性。幼少期にMarfan症候群と診断され、25歳時にStanford Aの急性大動脈解離に対してCabrol手術を施行された。6年前に施行したCTでgraftと両側冠動脈の吻合部狭窄を指摘されたが無症候であり経過観察となった。半年前より労作時呼吸困難を自覚、うっ血性心不全を発症し入院となった。心不全の治療後に冠動脈造影検査を施行し、graftと両側冠動脈の吻合部に99%狭窄を認めた。graftが胸骨の後面に位置していること等から再開胸術による危険性を考慮し、段階的に経皮的冠動脈形成術(PCI)を施行する方針となった。最終的には両側冠動脈の吻合部へそれぞれ3.5×14mmのバイオリムス溶出性ステントを留置し、良好に開大した。Cabrol graftと両側冠動脈の吻合部狭窄に対する待機的PCIの報告はなく、文献的考察を交えて報告する。(著者抄録)

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    その他リンク: https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2018&ichushi_jid=J00679&link_issn=&doc_id=20180813190009&doc_link_id=%2Fah2sinzd%2F2018%2F005008%2F010%2F0902-0907%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fah2sinzd%2F2018%2F005008%2F010%2F0902-0907%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

  • Prognosis of Cancer Patients with Aortic Stenosis Under Optimal Cancer Therapies and Conservative Cardiac Treatments.

    Yuji Okura, Sumika Ishigaki, Satoko Sakakibara, Chika Yumoto, Mitsue Hashitate, Chika Sekine, Tomomi Fujita, Tsugumi Takayama, Kazuyuki Ozaki, Nobuaki Sato, Tohru Minamino

    International heart journal   59 ( 4 )   750 - 758   2018年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Aortic stenosis (AS) is a life-threatening comorbidity of cancer patients. Aortic valve replacement (AVR) should be considered for some cancer patients, but neither the characteristics nor prognosis under conservative therapy is well known.We searched our echocardiography log (years 2005-2014) for cancer patients with AS, and 92 patients (54% female) were included in the study. To compare the survival curves, 470 control patients without AS were selected from our cancer registry.Mean age (± SD) was 77.6 ± 6.7 years for males and 81.6 ± 6.3 years for females. Mean aortic valve area (AVA) was 1.0 ± 0.3 cm2. Stomach, blood, and urinary bladder cancers were the major sites of current cancer. During the 5-year follow-up period, 44 patients with AS (48%) died; 26 (59%) due to cancer progression, 10 (23%) heart failure, and 4 (9%) stroke. Heart-failure death was significantly higher for patients with AS than for control patients (P < 0.001). Kaplan-Meier survival estimates were worse for stage I or II patients with AVA < 0.75 cm2 than for control patients (P = 0.016). Older age, advanced stages, absence of dyslipidemia, recent syncope, and chronic heart failure or AVA < 0.75 cm2 were significantly and independently associated with poor survival.Although the majority of cancer patients with AS died of cancer, a quarter died of heart failure. Careful follow-up is needed because cancer patients at earlier stages with symptomatic AS or AVA < 0.75 cm2 should be considered for AVR.

    DOI: 10.1536/ihj.17-320

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  • Aortic Regurgitation Presenting with Recurrent Detachment of a Prosthetic Valve, as the First Presenting Symptom of Cardiovascular Behçet's Disease.

    Tsugumi Takayama, Takuya Ozawa, Akiko Sanada, Tohru Watanabe, Masahiro Ito, Satoru Hirono, Yoshifusa Aizawa, Tohru Minamino

    Internal medicine (Tokyo, Japan)   57 ( 6 )   823 - 827   2018年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    A 33-year-old man with severe aortic regurgitation underwent initial aortic valve replacement (AVR). During the 2 years after AVR, 3 reoperations for prosthetic valve detachment were required. During hospitalization, he had no typical clinical findings, with the exception of a persistent inflammatory reaction; a pseudo-aneurysm around the Bentall graft developed 27 days after the 4th operation. This unique clinical course suggested the possibility of Behçet's disease. In the 8 years of follow-up after the administration of prednisolone, the pseudo-aneurysm did not become enlarged and the detachment of the prosthetic valve was not observed. We herein present a case of cardiovascular Behçet's disease, with a review of the literature.

    DOI: 10.2169/internalmedicine.9603-17

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  • 虚血性心疾患患者におけるアキレス腱厚と臨床的特徴の関係

    高野 俊樹, 大久保 健志, 萱森 裕美, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹

    日本内科学会雑誌   107 ( Suppl. )   242 - 242   2018年2月

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    記述言語:日本語   出版者・発行元:(一社)日本内科学会  

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  • 大動脈弁置換術・心筋切除術後に残存した左室流出路狭窄に対して経皮的中隔心筋焼灼術が奏功した重症大動脈弁狭窄症の一例

    山口 祐美, 五十嵐 聖, 仲尾 政晃, 高野 俊樹, 渡邊 達, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹

    日本心臓病学会学術集会抄録   65回   O - 203   2017年9月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 末梢性肺動脈狭窄症による肺高血圧症に合併したleft main compression syndromeの一例

    松尾 聖, 仲尾 政晃, 山口 祐美, 渡邊 達, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹

    日本心臓病学会学術集会抄録   65回   P - 012   2017年9月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 体外設置型補助人工心臓治療のSSI対策

    名村 理, 大久保 由華, 中村 制士, 鳥羽 麻友子, 岡本 竹司, 青木 賢治, 榛澤 和彦, 土田 正則, 渡邊 達, 五十嵐 聖, 松尾 佑治, 仲尾 政晃, 山口 裕美, 高野 俊樹, 高山 亜美, 保谷野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹

    新潟医学会雑誌   131 ( 8 )   514 - 514   2017年8月

  • 慢性心不全で体外設置型補助人工心臓を導入した1症例

    渡邊 達, 五十嵐 聖, 松尾 佑治, 南場 一美, 仲尾 政晃, 山口 祐美, 高野 俊樹, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 南野 徹, 中村 制士, 大久保 由華, 岡本 竹司, 青木 賢治, 名村 理, 土田 正則

    新潟医学会雑誌   131 ( 8 )   512 - 512   2017年8月

  • もやもや病および末梢性肺動脈狭窄症による肺高血圧症に合併した左冠動脈主幹部病変の1例

    五十嵐 聖, 仲尾 正晃, 山口 祐美, 高野 俊樹, 渡邊 達, 高山 亜美, 保屋野 真, 柳川 貴央, 小澤 拓也, 柏村 健, 尾崎 和幸, 塙 晴雄, 南野 徹

    新潟医学会雑誌   131 ( 8 )   509 - 509   2017年8月

  • Characteristics of neoplastic cardiac tamponade and prognosis after pericardiocentesis: a single-center study of 113 consecutive cancer patients.

    Tsugumi Takayama, Yuji Okura, Yoshinobu Okada, Keiichi Honma, Atsushi Nashimoto, Nobuaki Sato, Akira Yokoyama, Tohru Minamino

    International journal of clinical oncology   20 ( 5 )   872 - 7   2015年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Neoplastic cardiac tamponade (NCT) is a life-threatening complication of cancer. The interval between cancer diagnosis and NCT onset and the prognosis after pericardiocentesis may differ according to cancer type. METHODS AND RESULTS: We performed a retrospective study of 113 patients (54 % male) with NCT who underwent pericardiocentesis at Niigata Cancer Center Hospital between 1992 and 2013. Mean age at NCT was 61.2 years (range 15.9-94.8 years). The most common underlying cancers were lung cancer (59.2 %), breast cancer (21.2 %), lymphoma/leukemia (5.3 %), and gastric/esophageal cancer (5.3 %). The median time from cancer diagnosis to NCT onset was 9.0, 60.4, 5.6, and 8.0 months for lung cancer, breast cancer, lymphoma/leukemia, and gastric/esophageal cancer, respectively. Kaplan-Meier survival estimates were worse for breast cancer patients with NCT than for matched breast cancer patients without NCT (P < 0.0001). Median survival time after pericardiocentesis was 2.9, 4.2, 2.3, and 0.6 months for lung cancer, breast cancer, lymphoma/leukemia, and gastric/esophageal cancer, respectively; one-year survival after pericardiocentesis was 6.0, 16.7, 33.3, and 0 %, respectively. CONCLUSIONS: The interval between cancer diagnosis and NCT onset, the impact of NCT on prognosis, and the prognosis after pericardiocentesis differed according to cancer type. Healthcare practitioners caring for patients with NCT should recognize the differences between cancer types and customize their care accordingly.

    DOI: 10.1007/s10147-015-0794-7

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  • [Left atrial giant myxoma incidentally discovered during endoscopic ultrasonography; report of a case].

    Hirofumi Saitoh, Terumasa Morita, Hirotaka Sugiura, Hideaki Otsuka, Koichi Tomii, Tsugumi Takayama, Yuji Okura, Satoshi Kurita, Takashi Kawasaki

    Kyobu geka. The Japanese journal of thoracic surgery   67 ( 13 )   1191 - 4   2014年12月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    A 49-year-old female patient with a symptom of dysphagia underwent endoscopic ultrasonography (EUS) of the upper gastrointestinal tract, which incidentally revealed a tumor compressing the esophagus from outside. Transthoracic echocardiography performed after EUS showed a giant tumor in the left atrium. The tumor, measuring 75×68×43 mm, weighing 105 g was successfully removed, and pathologically diagnosed as myxoma. Her symptom disappeared completely. When performing clinical studies, it is important to pay every attention not to miss any abnormal findings beyond the scope of targeted areas. We also mentioned an ambiguity of the term," giant" regarding the size and weight of myxoma.

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  • A case of chemoradiotherapy-associated cardiotoxicity that developed into acute heart failure with progressive subendocardial fibrosis.

    Daisuke Yuki, Yuji Okura, Tsugumi Takayama, Takashi Kawasaki, Chizuko Kanbayashi, Nobuaki Sato

    Journal of cardiology cases   10 ( 3 )   115 - 120   2014年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We describe the case of a 61-year-old Japanese woman who developed acute heart failure 5 years after chemoradiotherapy for breast cancer. The patient received less than the cardiotoxic dose of docetaxel, epirubicin, cyclophosphamide, and fluorouracil and experienced no cardiovascular complications in the 5 years between the onset of chemoradiotherapy and the onset of acute heart failure. Cardiac catheterization was performed and elevation of end diastolic pressure of both ventricles was observed. Endomyocardial biopsy showed progressive replacement fibrosis in the subendocardium. Normal thickness of the right endocardium is <20 μm. Surprisingly, our patient had a fibrous subendocardium that was 100-200 μm thick. Ultrastructural abnormalities similar to those observed in anthracycline cardiotoxicity were evident on electron micrographs. This case report demonstrates the unique pathophysiology of heart failure in a patient who received less than the cardiotoxic dose of antineoplastic agents. Recent protocols have decreased the dosage of cardiotoxic agents; however, even these reduced doses might not be safe for all Japanese individuals and may cause subclinical cardiovascular damage and late-onset heart failure. Clinicians should monitor cancer survivors carefully, even if antineoplastic agents were administered under the cardiotoxic dose. <Learning objective: Intensive chemotherapy is commonly used to treat cancer patients. Recent protocols have decreased the dose of cardiotoxic agents; however, even these reduced doses might not be safe and may cause subclinical cardiovascular damage and late-onset heart failure. Clinicians should monitor cancer survivors carefully, even if antineoplastic agents were administered under the toxic dose.>.

    DOI: 10.1016/j.jccase.2014.06.002

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  • Erythropoietin induces angiogenesis in a manner dependent on the intrinsic auto/paracrine production of interleukin-6 in vitro. 国際誌

    Takao Yanagawa, Ken Toba, Tomoyasu Suzuki, Takuya Ozawa, Masato Oda, Tsugumi Takayama, Kiminori Kato, Yoshifusa Aizawa

    International journal of cardiology   168 ( 3 )   2941 - 3   2013年10月

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  • Asialoerythropoietin exerts stronger angiogenic activity than erythropoietin via its binding affinity to tissue. 国際誌

    Takao Yanagawa, Ken Toba, Kiminori Kato, Tomoyasu Suzuki, Shiro Minagawa, Takashi Saigawa, Takuya Ozawa, Masato Oda, Tsugumi Takayama, Haruo Hanawa, Masato Higuchi, Hideki Saito, Yoshifusa Aizawa

    Cardiovascular drugs and therapy   27 ( 2 )   117 - 24   2013年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: Although erythropoietin (EPO) is known to express angiogenic and cardioprotective effects, it also induces hypertension, polycythemia, and platelet activation, which may cause serious adverse effects in patients with cardiovascular diseases. We compared the angiogenic effects of EPO and its nonerythropoietic derivative, asialo-EPO (AEPO). METHODS: Lower limb ischemia was induced in ICR and C57/BL mice. Mice were injected intramuscularly with 2 μg/kg of EPO derivatives for 6 or 7 days. To assess biological differences, the tissue affinity of both EPO derivatives was analyzed in vitro using heparin affinity column chromatography. Tissue affinity was also analyzed in vivo using an intramuscular pharmacokinetic study. RESULTS: The survival of ischemic legs was better in the AEPO group than that in the EPO group (5/13 = 38.5 % vs 1/13 = 7.7 %, p < 0.05), and an increase in regenerated vessels was observed in the AEPO group, but not in the EPO group in ICR mice. Vessel/muscle ratios in control, EPO, and AEPO groups were 0.50 ± 0.34, 0.61 ± 0.32, and 2.83 ± 1.13, respectively (p < 0.0001). On the other hand, regenerated vessels were observed in both EPO and AEPO groups (p < 0.001) in C57/BL mice. AEPO, but not EPO, expressed heparin affinity in vitro. Intramuscularly injected EPO gradually decreased in muscle tissue, while AEPO was maintained at 2.5 ng/muscle for 1 day after several hours of a rapid clearance phase in vivo. CONCLUSIONS: AEPO exerts stronger angiogenic effects than those of EPO presumably via its tissue affinity. Administration of AEPO is a promising option for the treatment of patients with critical limb ischemia.

    DOI: 10.1007/s10557-013-6438-0

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  • Esophageal cancer with an esophagopericardial fistula and purulent pericarditis.

    Tsugumi Takayama, Yuji Okura, Kazuhiro Funakoshi, Tatsuhiko Sato, Hiroyuki Ohi, Toshiyuki Kato

    Internal medicine (Tokyo, Japan)   52 ( 2 )   243 - 7   2013年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We herein present the case of a 56-year-old Japanese woman who developed purulent pericarditis after undergoing chemoradiotherapy for esophageal cancer. She developed epigastralgia and a fever and was admitted to our hospital. A physical examination revealed hypotension, tachycardia and pericardial friction rub. Echocardiography revealed moderate pericardial effusion. Based on these observations, the patient was diagnosed with cardiac tamponade. Computed tomography confirmed the presence of an esophagopericardial fistula. Treatment with pericardiocentesis, drainage and short-term intrapericardial administration of antibiotics relieved the patient's symptoms. Daily rinsing through a catheter with normal saline prevented relapse of the purulent pericarditis. Esophagopericardial fistulas are so rare that their treatment is not well-established. We herein report successful palliative care of a malignant esophagopericardial fistula associated with purulent pericarditis.

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  • A novel synthetic derivative of human erythropoietin designed to bind to glycosaminoglycans. 国際誌

    Masato Moriyama, Ken Toba, Haruo Hanawa, Kiminori Kato, Takao Yanagawa, Tsugumi Takayama, Takuya Ozawa, Hironori Kobayashi, Masato Higuchi, Hideki Saito, Yoshifusa Aizawa

    Drug delivery   19 ( 4 )   202 - 7   2012年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    To synthesize long-acting and antiangiogenic erythropoietin to be clinically applied for treatment of patients with solid tumors, we synthesized a hybrid molecule of human erythropoietin added onto the C-terminus with a heparin-binding motif of human PLGF-2 to develop a novel derivative of long-acting and antiangiogenic erythropoietin: heparin-binding erythropoietin (HEPO), and studied the characteristics of this novel erythropoietin derivative. HEPO cDNA was synthesized, expressed in insect cells, and the protein was purified using a heparin-sepharose affinity column. The erythropoietic and angiogenic effects of the partially purified protein were analyzed in vitro and in vivo. The erythropoietic activity of the protein was equivalent to natural EPO in vitro. In vivo administration of the protein to mice revealed its long-acting erythropoietic activity as expected. Administration of the protein inhibited angiogenesis in a mouse limb ischemia model. In conclusion, the heparin-binding motif of PLGF-2 may act as, so to speak, a superendostatin. This novel long-acting erythropoietin derivative may have an advantage to inhibit tumor growth while preserving hematopoietic and tissue-protective effects.

    DOI: 10.3109/10717544.2012.690004

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  • Hypocellularity and insufficient expression of angiogenic factors in implanted autologous bone marrow in patients with chronic critical limb ischemia.

    Masato Oda, Ken Toba, Kiminori Kato, Takuya Ozawa, Takao Yanagawa, Noboru Ikarashi, Tsugumi Takayama, Tomoyasu Suzuki, Haruo Hanawa, Masayoshi Masuko, Hironori Kobayashi, Yoshifusa Aizawa

    Heart and vessels   27 ( 1 )   38 - 45   2012年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The aim of this study was to identify the clinical parameters of absolutely poor-prognosis patients with chronic critical limb ischemia (AP-CLI). Sixteen no-option CLI patients with arteriosclerosis obliterans: ASO (nine) and non-ASO patients (seven) treated with bone marrow-mononuclear cell implantation (BMI) were analyzed. There were three AP-CLI patients (all ASO). The mRNA expression of several angiogenic factors in the implanted cells was analyzed in comparison with normal donor bone marrow. To observe the response of bone marrow components to hypoxia, normal bone marrow cells were cultured for 24 h in 2.5% O(2), and mRNA expression of angiogenic factors were measured. AP-CLI patients exhibited extraordinary low bone marrow cellularity as well as the percentage of CD34-positive cells. Among angiogenic factors, only VEGF expression was maintained in response to HIF-1, while other factors such as HGF, Ang-1, PLGF, and SDF-1 decreased in the implanted bone marrow cells of the patients with CLI compared to normal bone marrow cells. HIF-1 and all of the five angiogenic factors increased in vitro in response to hypoxia. Thus it is highly likely that angiogenic factors except VEGF do not respond to chronic ischemia in bone marrow in vivo. An organ-protection system against tissue ischemia may be applied for acute hypoxia, but it may be insufficient for chronic ischemia.

    DOI: 10.1007/s00380-011-0125-5

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  • Erythropoietin, but not asialoerythropoietin or carbamyl-erythropoietin, attenuates monocrotaline-induced pulmonary hypertension in rats. 国際誌

    Noboru Ikarashi, Ken Toba, Kiminori Kato, Takuya Ozawa, Masato Oda, Tsugumi Takayama, Hironori Kobayashi, Takao Yanagawa, Haruo Hanawa, Tomoyasu Suzuki, Mikio Nakazawa, Minoru Nomoto, Fuyuki Asami, Masato Higuchi, Hideki Saito, Yoshifusa Aizawa

    Clinical and experimental hypertension (New York, N.Y. : 1993)   34 ( 8 )   575 - 81   2012年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Erythropoietin (EPO) has long been utilized for the treatment of renal anemia. The erythropoietin receptor (EPOR) is also expressed in the cardiovascular and central nervous systems in addition to an erythroid lineage, to provide an organoprotective role against several types of cellular stress. Pulmonary hypertension (PH) is a poor prognostic disease caused by primary and secondary pulmonary vascular injury. We observed the effects of EPO derivatives on monocrotaline-induced PH in rats on the supposition that EPO may protect small arteries from injury. Asialoerythropoietin (AEPO) lacks sialic acids in the termini of carbohydrate chains that results in rapid clearance from blood. Carbamyl-erythropoietin (CEPO) interacts with EPOR/βc heterodimers, but not with EPOR homodimers expressed in erythroid cells. Monocrotaline-injected rats were treated with continuous intravenous injection of 2500 ng/kg/day of EPO, AEPO, or CEPO for 21 days, and lung histology, cardiac function, and mRNA expression in the lungs were examined. Wall thickening of small arteries in the lungs and PH were improved by administration of EPO, but not by its non-hematopoietic derivatives, AEPO, or CEPO. Erythropoietin administration increased mRNA expression of the anti-apoptotic molecule, Bcl-xL, and maintained expression of the CD31 antigen. We conclude that lungs may express EPOR homoreceptors, but not heteroreceptors. Adequate serum erythropoietin levels may be essential for pulmonary protective effects.

    DOI: 10.3109/10641963.2012.681728

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  • Establishment of culturing system for ex-vivo expansion of angiogenic immature erythroid cells, and its application for treatment of patients with chronic severe lower limb ischemia. 国際誌

    Masato Oda, Ken Toba, Takuya Ozawa, Kiminori Kato, Takao Yanagawa, Noboru Ikarashi, Tsugumi Takayama, Tomoyasu Suzuki, Haruo Hanawa, Ichiro Fuse, Kou Nakata, Miwako Narita, Masuhiro Takahashi, Yoshifusa Aizawa

    Journal of molecular and cellular cardiology   49 ( 3 )   347 - 53   2010年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Angiogenesis therapy by bone marrow-mononuclear cell implantation (BMI) has been utilized. We found that erythroid cells played an essential role in angiogenesis by BMI. We then tried to establish a novel cell therapy by implantation of ex vivo expanded immature erythroblasts cultured from hematopoietic stem/precursor cells. Immature to mature erythroblasts were purified from human bone marrow, and mRNA expression were analyzed. Strongly expressed VEGF and PLGF in immature erythroid cells decreased according to erythroid maturation. To expand very immature erythroid cells, we established a two-step culturing system, i.e., bone marrow cells were cultured in the presence of Flt-3L, SCF and TPO for 7 days, and the cells were further cultured in the presence of SCF, IGF-I and EPO for an additional 7 days. The in vivo angiogenic effects of implantation of the ex vivo expanded cells were stronger than that of BMI in mouse limb ischemia model. Three patients with severe chronic lower limb ischemia accompanied by Burger's disease or collagen arteritis were enrolled in a pilot clinical trial of the novel cell therapy by transplantation of ex-vivo expanded immature erythroid cells. In the clinical trial, most clinical symptoms such as rest pain and skin ulcers improved in 4 weeks, and did not recur in the one-year follow-up. No adverse events were observed in any of the patients. Moreover this novel cell therapy required only a small amount of bone marrow collection. Further enrollment of patients with chronic severe lower limb ischemia is necessary to confirm the efficacy and safety of this novel cell therapy, and to estimate the necessary amount of bone marrow aspirate.

    DOI: 10.1016/j.yjmcc.2010.04.001

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  • Expression of the peptide hormone hepcidin increases in cardiomyocytes under myocarditis and myocardial infarction. 国際誌

    Manabu Isoda, Haruo Hanawa, Ritsuo Watanabe, Tsuyoshi Yoshida, Ken Toba, Kaori Yoshida, Mayuko Kojima, Keita Otaki, Kazuhisa Hao, Limin Ding, Komei Tanaka, Tsugumi Takayama, Kiminori Kato, Yuji Okura, Makoto Kodama, Yoshimi Ota, Junichi Hayashi, Yoshifusa Aizawa

    The Journal of nutritional biochemistry   21 ( 8 )   749 - 56   2010年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The micronutrient iron is an essential component that plays a role in many crucial metabolic reactions. The peptide hormone hepcidin is thought to play a central role in iron homeostasis and its expression is induced by iron overloading and inflammation. Recently, hepcidin has been reported to be expressed also in the heart; however, the kinetics of altered hepcidin expression in diseases of the heart remain unknown. In this study, we examined cardiac expression of hepcidin in rat experimental autoimmune myocarditis (EAM), human myocarditis and rat acute myocardial infarction (AMI). In rat EAM and AMI hearts, hepcidin was expressed in cardiomyocytes; ferroportin, which is a cellular iron exporter bound by hepcidin, was also expressed in various cells. Analysis of the time course of the hepcidin to cytochrome oxidase subunit 6a (Cox6a)2 expression ratio showed that it abruptly increased more than 100-fold in hearts in the very early phase of EAM and in infarcted areas 1 day after MI. The hepcidin/Cox6a2 expression ratio correlated significantly with that of interleukin-6/gamma-actin in both EAM and AMI hearts (r=0.781, P<.0001 and r=0.563, P=.0003). In human hearts with histological myocarditis, the ratio was significantly higher than in those without myocarditis (0.0400+/-0.0195 versus 0.0032+/-0.0017, P=.0045). Hepcidin is strongly induced in cardiomyocytes under myocarditis and MI, conditions in which inflammatory cytokine levels increase and may play an important role in iron homeostasis and free radical generation.

    DOI: 10.1016/j.jnutbio.2009.04.009

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  • Single-dose Intravenous-administration of Recombinant Human Erythropoietin Considerably Improved Cardiac Function in Patients With Acute Myocardial Infarction: A Randomized Controlled Pilot Trial of EPO/AMI-I Study 査読

    Takuya Ozawa, Ken Toba, Kiminori Kato, Hiroshi Suzuki, Yoshitaka Iso, Naohiko Kobayashi, Yasushi Akutsu, Tsugumi Takayama, Takao Yanagawa, Norihiko Yoshimura, Youichi Kobayashi, Youichi Takeyama, Kohei Akazawa, Yoshifusa Aizawa

    CIRCULATION   120 ( 18 )   S1173 - S1174   2009年11月

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    記述言語:英語   出版者・発行元:LIPPINCOTT WILLIAMS & WILKINS  

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  • マウス下肢虚血モデルに対する各種エリスロポエチン誘導体による血管新生作用の比較

    柳川 貴央, 高山 亜美, 浅見 冬樹, 小澤 拓也, 塙 晴雄, 鳥羽 健, 相澤 義房

    日本心臓病学会誌   4 ( Suppl.I )   486 - 486   2009年8月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 重症下肢虚血患者に対する体外増幅自己赤芽球移植を用いた血管再生治療の第1/2相臨床試験

    高山 亜美, 鳥羽 健, 加藤 公則, 小澤 拓也, 小田 雅人, 柳川 貴央, 五十嵐 登, 塙 晴雄, 相澤 義房

    日本心臓病学会誌   4 ( Suppl.I )   269 - 269   2009年8月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 重症下肢虚血患者に対する体外増幅自己赤芽球移植を用いた血管再生治療の第I/II相臨床試験

    小澤 拓也, 鳥羽 健, 加藤 公則, 小田 雅人, 柳川 貴央, 五十嵐 登, 高山 亜美, 塙 晴雄, 相澤 義房

    日本内科学会雑誌   98 ( Suppl. )   178 - 178   2009年2月

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    記述言語:日本語   出版者・発行元:(一社)日本内科学会  

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  • Serum erythropoietin level as a marker of limb ischemia. 国際誌

    Takuya Ozawa, Kiminori Kato, Ken Toba, Masato Oda, Manabu Isoda, Fuyuki Asami, Noboru Ikarashi, Takao Yanagawa, Masato Moriyama, Masutaka Higashimura, Toshiki Kitajima, Keita Otaki, Tsugumi Takayama, Satoru Hirono, Yuji Okura, Haruo Hanawa, Makoto Kodama, Yoshifusa Aizawa

    International journal of cardiology   130 ( 1 )   106 - 8   2008年10月

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    記述言語:英語  

    Bone marrow implantation (BMI) has been utilized for the treatment of limb ischemia, however, serum markers have not yet been reported to express the degree of limb ischemia. We analyzed the serum levels of several cytokines including erythropoietin (EPO) in the treated legs and the contralateral ones in 11 patients with limb ischemia treated with BMI. The EPO level in the pre-treated legs in the 5 patients with arteriosclerosis obliterans revealed a good correlation with ankle-brachial pressure index. The EPO level, but not the levels of TNF-alpha, VEGF, and bFGF in the pre-treated legs was significantly higher than that in the contralateral legs in the 11 patients, and the EPO level decreased in 4 weeks after BMI. The serum EPO level may express the degree of limb ischemia presumably through the reactive production of EPO in ischemic tissue.

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  • 体外増幅自己赤芽球を用いた血管再生治療に関する基礎的研究と臨床応用の1例

    小田 雅人, 加藤 公則, 小澤 拓也, 柳川 貴央, 五十嵐 登, 高山 亜美, 塙 晴雄, 相澤 義房

    日本心臓病学会誌   2 ( Suppl.I )   417 - 417   2008年8月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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  • 慢性重症虚血下肢を対象とした体外増幅自己赤芽球を用いた血管再生治療に関する研究

    小田 雅人, 加藤 公則, 鳥羽 健, 高山 亜美, 北嶋 俊樹, 大瀧 啓太, 五十嵐 登, 柳川 貴央, 東村 益孝, 浅見 冬樹, 小澤 拓也, 森山 雅人, 広野 暁, 塙 晴雄, 相澤 義房

    新潟医学会雑誌   122 ( 3 )   169 - 169   2008年3月

  • 重症下肢虚血に対する細胞治療効果を規定する因子の解析

    小田 雅人, 加藤 公則, 鳥羽 健, 高山 亜美, 北嶋 俊樹, 大瀧 啓太, 五十嵐 登, 柳川 貴央, 東村 益孝, 浅見 冬樹, 小澤 拓也, 森山 雅人, 塙 晴雄, 相澤 義房

    新潟医学会雑誌   122 ( 3 )   168 - 168   2008年3月

  • 急性心筋梗塞発症後にシロスタゾールを内服し一過性に左室内圧較差を生じた1例

    前田 知代, 尾崎 和幸, 高山 亜美, 保屋野 真, 柳川 貴央, 土田 圭一, 高橋 和義, 三井田 努, 小田 弘隆

    新潟医学会雑誌   121 ( 9 )   532 - 532   2007年9月

  • Dynamic intraventricular obstruction in acute myocardial infarction with administration of cilostazol.

    Kazuyuki Ozaki, Chiyo Maeda, Tsugumi Takayama, Makoto Hoyano, Takao Yanagawa, Keiichi Tsuchida, Kazuyoshi Takahashi, Tsutomu Miida, Hirotaka Oda

    Circulation journal : official journal of the Japanese Circulation Society   71 ( 4 )   608 - 12   2007年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Dynamic intraventricular obstruction is a less well-known mechanical complication of acute myocardial infarction (AMI). Its hallmark is the development of a new systolic murmur, and echocardiography is necessary for diagnosis. We describe a case of a 74-year-old woman with dynamic intraventricular obstruction complicating AMI. Serial echocardiography suggested that the intraventricular gradient was a consequence of basal hyperkinesis, which was a reciprocal response to akinesis of the apical wall. Cilostazol, which was administered to prevent subacute stent thrombosis after percutaneous coronary intervention, might have contributed to the transient intraventricular obstruction.

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  • 急性心筋梗塞発症後にシロスタゾールを内服し一過性に左室内圧較差を生じた一例

    尾崎 和幸, 前田 知世, 高山 亜美, 保屋野 真, 柳川 貴央, 土田 圭一, 高橋 和義, 三井田 努, 小田 弘隆

    Circulation Journal   71 ( Suppl.II )   868 - 868   2007年4月

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    記述言語:日本語   出版者・発行元:(一社)日本循環器学会  

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  • DCAによる中等度の切削およびシロリムス溶出ステント留置の有用性および安全性について

    尾崎 和幸, 高山 亜美, 保屋野 真, 柳川 貴央, 高橋 和義, 三井田 努, 小田 弘隆

    Journal of Cardiology   48 ( Suppl.I )   716 - 716   2006年9月

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    記述言語:日本語   出版者・発行元:(一社)日本心臓病学会  

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共同研究・競争的資金等の研究

  • デノスマブによる心血管イベント抑制効果評価のための多施設共同研究

    研究課題/領域番号:18K08030

    2018年4月 - 2021年3月

    制度名:科学研究費助成事業

    研究種目:基盤研究(C)

    提供機関:日本学術振興会

    小澤 拓也, 柳川 貴央, 高山 亜美, 池上 龍太郎, 須田 将吉, 久保田 直樹

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    配分額:4420000円 ( 直接経費:3400000円 、 間接経費:1020000円 )

    デノスマブ投与による冠動脈石灰化抑制効果の検証を行ったが、本研究は必要症例数確保困難なため研究中止となった。登録した一例は84歳男性、原発性骨粗鬆症の診断あり。ベースラインのCACスコア 477.4、Volumeスコア4.777cm2であった。アレンドロン酸投与群に割り振られ、投与期間終了後CACスコアは606.8、Volumeスコアは6.073cm2であり、投与前と比べてそれぞれ%⊿CAC/48週は+27%、%⊿volume スコア/48週は+27%であった。過去の報告から冠動脈石灰化進行の自然歴は+30%前後と報告されており本結果はそれに合致していた。

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