Toraji Amano
Hokkaido University
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Publication
Featured researches published by Toraji Amano.
Journal of Shoulder and Elbow Surgery | 2016
Atsushi Urita; Tadanao Funakoshi; Toraji Amano; Yuichiro Matsui; Daisuke Kawamura; Yusuke Kameda; Norimasa Iwasaki
BACKGROUND Disorders of the long head of the biceps (LHB) tendon contribute to anterior shoulder pain. Although LHB tendon disorders are associated with rotator cuff disease, distinguishing between biceps and rotator cuff pathology is difficult. The objective was to identify the predictors of LHB tendon disorders associated with a supraspinatus tear. METHODS In 55 patients (average age, 65 years) undergoing arthroscopic rotator cuff repair, bicipital groove morphology were assessed using computed tomography, and subscapularis tear and bicipital groove effusion were assessed using magnetic resonance imaging, retrospectively. The LHB tendon was evaluated arthroscopically according to the Lafosse classification. Univariate and multivariate ordinal logistic regression analyses were conducted for injury grade with all covariates. RESULTS The arthroscopic evaluation of the LHB tendon showed that there were 23 shoulders classified as grade 0, 15 as grade 1, and 17 as grade 2. Univariate logistic regression analysis showed that the width and depth, a medial spur of the bicipital groove, and a subscapularis tear were significantly associated with LHB tendon disorders. Multivariate ordinal logistic regression analysis identified a medial spur and subscapularis tear as significant predictors of LHB tendon disorders. CONCLUSIONS The preoperative computed tomography and magnetic resonance images, notably the presence of a spur on the bicipital groove or a subscapularis tear, were useful for identifying LHB tendon disorders. When these are found in preoperative images, the clinician should evaluate the patient for the presence of an LHB tendon disorder as a pain generator.
Respiration | 2002
Toshiyuki Harada; Toraji Amano; Ayumu Takahashi; Jungo Furuya; Etsuro Yamaguchi; Mitsuhito Kaji; Toshiaki Morikawa; Tomoo Itoh; Michio Shimizu; Masaharu Nishimura
A 52-year-old woman presented with a one-week history of low-grade fever and dyspnea. A CT scan showed multiple pulmonary nodules with cavitation, as well as bilateral pleural thickenings with effusions. A specimen resected by video-assisted thoracoscopic surgery showed multiple confluent granulomas with central necrosis and granulomatous vasculitis. These findings were consistent with necrotizing sarcoid granulomatosis. An elevated serum soluble interleukin-2 receptor level became normal following clinical and radiological improvement. This indicates that the serum soluble interleukin-2 receptor can be a useful marker for the clinical management of necrotizing sarcoid granulomatosis.
Case Reports in Oncology | 2011
Satoshi Takeuchi; Rio Honma; Jun Taguchi; Toraji Amano; Yasushi Shimizu; Ichiro Kinoshita; Kanako Kubota; Yoshihiro Matsuno; Hirotoshi Dosaka-Akita
High-grade neuroendocrine carcinoma differs from usual neuroendocrine carcinoma, and its prognosis is dismal. In this case report, a case of high-grade neuroendocrine carcinoma that improved with bevacizumab plus modified FOLFOX6 as the fourth-line chemotherapy is presented. A 29-year-old male with a huge liver tumor was diagnosed with high-grade neuroendocrine carcinoma originating from the liver. Multiple liver and bone metastases were found one month after surgery. He was treated with three chemotherapy regimens used for the management of small-cell lung cancer with extensive disease. However, none of them could be maintained because of tumor progression. He was then treated with bevacizumab plus modified FOLFOX6 as the fourth-line regimen. Dramatic tumor shrinkage was obtained, and a partial response was achieved. This case suggests that high-grade neuroendocrine carcinoma can be treated with bevacizumab in combination with cytotoxic chemotherapy.
Circulation | 2016
Takashi Yoshitani; Naoya Asakawa; Mamoru Sakakibara; Keiji Noguchi; Yusuke Tokuda; Kiwamu Kamiya; Hiroyuki Iwano; Satoshi Yamada; Yusuke Kudou; Mutsumi Nishida; Chikara Shimizu; Toraji Amano; Hiroyuki Tsutsui
BACKGROUND Heart failure (HF) causes organ congestion, which is thought to increase organ stiffness. The virtual touch quantification (VTQ) method can be used to assess liver stiffness in patients with chronic liver diseases. This study aimed to measure liver and kidney stiffness using VTQ and to determine its value for assessing organ congestion in patients with HF. METHODSANDRESULTS This study included 10 normal subjects and 38 HF patients (age 52.3±16.7 years, left ventricular ejection fraction 27.0±9.4%, plasma B-type natriuretic peptide [BNP] 1,297.3±1,155.1 pg/ml). We investigated the relationships between clinical characteristics and hemodynamics and liver and kidney stiffness, and assessed the effects of medical treatment on these measurements. Liver stiffness was significantly higher in HF patients (1.17±0.13 m/s vs. 2.03±0.91 m/s, P=0.004) compared with normal subjects, but kidney stiffness was similar in both groups. Central venous pressure (CVP) (P=0.021) and BNP (P=0.025) were independent predictive factors for increased liver stiffness in HF patients. Liver stiffness decreased significantly from 2.37±1.09 to 1.27±0.33 m/s (P<0.001) after treatment. Changes in liver stiffness in HF patients significantly correlated with changes in CVP (R=0.636, P=0.014) and cardiac index (R=-0.557, P=0.039) according to univariate analysis, and with changes in CVP in multivariate analysis. CONCLUSIONS Liver stiffness measured by noninvasive VTQ methods can be used to assess liver congestion and therapeutic effects in patients with HF. (Circ J 2016; 80: 1187-1195).
Pancreatology | 2018
Hideyuki Hayashi; Shigeki Tanishima; Kyoko Fujii; Ryo Mori; Yasunobu Okamura; Emmy Yanagita; Ryosuke Matsuoka; Toraji Amano; Ichiro Kinoshita; Yoshito Komatsu; Hirotoshi Dosaka-Akita; Hiroshi Nishihara
BACKGROUND Precision medicine guided by comprehensive genome sequencing represents a potential treatment strategy for pancreatic cancer. However, clinical sequencing for pancreatic cancer entails several practical difficulties. We have launched an in-house clinical sequencing system and started genomic testing for patients with cancer in clinical practice. We have analyzed the clinical utility of this system in pancreatic cancer. METHODS We retrospectively reviewed 20 patients with pancreatic cancer who visited our division. Genomic DNA was extracted from both tumor tissue and peripheral blood mononuclear cells obtained from the patients. We performed a comprehensive genomic testing using targeted amplicon sequencing for 160 cancer-related genes. The primary endpoints were the detection rates of potential actionable and druggable gene alterations. The secondary endpoints were the detection rate of secondary germline findings, the rate of re-biopsy required for genome sequencing, survival time after the initial visit (post-sequencing survival time), and turnaround time. RESULTS Although re-biopsy was required for 25% (5/20) of all patients, genomic testing was performed in all patients. Actionable and druggable gene alterations were detected in 100% (20/20) and 35% (7/20) of patients, respectively, whereas secondary germline findings were detected in 5% (1/20) of patients. The median turnaround times for physicians and patients were 20 and 26 days, respectively. The median post-sequencing survival time was 10.3 months. Only 10% (2/20) of all patients were treated with therapeutic agents based on the outcomes of genomic testing. CONCLUSIONS The clinical application of comprehensive genomic testing for pancreatic cancer was feasible and promising in clinical practice.
Frontiers in Pharmacology | 2018
Toshiyuki Harada; Toraji Amano; Tomoo Ikari; Kei Takamura; Takahiro Ogi; Toshiaki Fujikane; Yuka Fujita; Kageaki Taima; Hisashi Tanaka; Takaaki Sasaki; Shunsuke Okumura; Shunichi Sugawara; Hiroshi Yokouchi; Noriyuki Yamada; Naoto Morikawa; Hirotoshi Dosaka-Akita; Hiroshi Isobe; Masaharu Nishimura
The herbal medicine rikkunshito has the potential to improve chemotherapy-induced nausea and vomiting (CINV) by stimulating ghrelin secretion. We aimed to evaluate the efficacy and safety of rikkunshito in preventing CINV for patients with lung cancer. Two separate prospective, randomized, phase II parallel design studies were conducted in patients with lung cancer. Fifty-eight and sixty-two patients scheduled to receive highly emetogenic chemotherapy (HEC) and moderately emetogenic chemotherapy (MEC), respectively, were randomized 1:1 to receive either standard antiemetic therapy in accordance with international guidelines (S group) or standard antiemetic therapy plus oral rikkunshito (R group). The primary endpoint was overall complete response (CR)—that is, no emesis and rescue medication in the first 120 h post-chemotherapy. Secondary endpoints included CR in the acute (0–24 h) and delayed (>24–120 h) phases and safety. Fifty-seven patients (S group, 28; R group, 29) receiving HEC and sixty-two patients (S group, 30; R group, 32) receiving MEC with comparable characteristics were evaluated. The CR rates were similar across the S and R groups for the HEC study in the overall (67.9% vs. 62.1%), acute (96.4% vs. 89.6%), and delayed (67.9% vs. 62.1%) phases, respectively, and for the MEC study in the overall (83.3% vs. 84.4%), acute (100% vs. 100%), and delayed (83.3% vs. 84.4%) phases, respectively. No severe adverse events were observed. Although rikkunshito was well tolerated, it did not demonstrate an additional preventative effect against CINV in lung cancer patients receiving HEC or MEC. Clinical Trial Registry Information: This study is registered with the University Hospital Medical Information Network (UMIN) Clinical Trial Registry1, identification numbers UMIN 000014239 and UMIN 000014240.
Journal of Clinical Oncology | 2016
Satoshi Yuki; Hiroshi Nakatsumi; Kentaro Sawada; Takashi Kato; Takashi Meguro; Michio Nakamura; Ichiro Iwanaga; Nobuyuki Ehira; Norikazu Sonoda; Mineo Kudo; Kanji Kato; Susumu Sogabe; Toraji Amano; Kota Ono; Keita Sakamoto; N. Miyamoto; Kohsuke Kudo; Naoya Sakamoto; Yuh Sakata; Yoshito Komatsu
753 Background: It was reported that early tumor shrinkage (ETS) was associated with better overall survival (OS) in patients (pts) with metastatic colorectal cancer (mCRC) receiving first line chemotherapy. We investigated association of ETS with progression-free survival (PFS) and OS in pts with mCRC treated with first-line bevacizumab (BV)-based chemotherapy (HGCSG0802). Methods: The objective of HGCSG0802 was to evaluate PFS, OS, response rate (RR), safety and so on. The key eligibility criteria were evaluable lesions, older than 20 years old, ECOG PS 0-2. This analysis evaluated the association of ETS at 8 weeks from the start of chemotherapy with pts characteristics, PFS and OS. To identify factors associated with ETS, if there were clinical variables with p < 0.2 in univariate analysis, we planned a multivariate analysis using the logistic regression model. To identify predictive and prognostic factors, a multivariate analysis was performed using Cox proportional hazard model with backward eliminat...
BMC Gastroenterology | 2016
Kimitoshi Kubo; Hiroshi Kawakami; Masaki Kuwatani; Mutsumi Nishida; Kazumichi Kawakubo; Shuhei Kawahata; Yoko Taya; Yoshimasa Kubota; Toraji Amano; Hiroki Shirato; Naoya Sakamoto
Unfortunately, after publication of this article [1], it was noticed that the title was captured incorrectly during the production process. The words, “a prospective cohort study” were erroneously added twice. The corrected title can be seen above.
Journal of Clinical Oncology | 2014
Satoshi Yuki; Yoshito Komatsu; Hiraku Fukushima; Takahide Sasaki; Yoshimitsu Kobayashi; Kazuaki Harada; Toraji Amano; Michio Nakamura; Mineo Kudo; Miki Tateyama; Kazuteru Hatanaka; Soh Saitoh; Takuto Miyagishima; Takashi Kato; Yasuyuki Kawamoto; Tomofumi Takagi; Ichiro Iwanaga; Kencho Miyashita; Manabu Onodera; Yuh Sakata
603 Background: The safety and efficacy of first-line IRIS (S-1 in combination with irinotecan) and IRIS/Bev (IRIS in combination with bevacizumab [Bev]) have been evaluated in patients with metastatic colorectal cancer (mCRC). To date, no randomized studies comparing these regimens have been performed. This retrospective analysis compared efficacy data for the two regimens from separate phase II studies performed at Hokkaido Gastrointestinal Cancer Study Group (HGCSG). Methods: Patients with histologically confirmed unresectable metastatic or recurrent CRC and received no prior chemotherapy were enrolled. In the first trial, patients received irinotecan 100 mg/m2 on day 1,15 and oral S-1 40 mg/m2 twice daily on days 1-14 every 4 weeks (IRIS study: HGCSG0302). In the second trial, patients received the same regimen plus Bev 5 mg/kg on day 1,15 (IRIS/Bev study). Results: A total of 40 and 52 patients were enrolled the IRIS and IRIS/Bev studies, respectively. Patient characteristics were generally similar i...
Journal of Clinical Oncology | 2013
Keisei Taku; Kou Ohata; Toraji Amano; Yasuo Ohashi; Kentaro Yamazaki; Masaya Watanabe; Shinsuke Satou; Takeshi Ooshima; Go Nishikawa; Hidekazu Hirano
586 Background: An observational cohort study plays a crucial role to understand the current status of clinical practice and can be utilized as database for multi-purpose outcome research. Such database is available in Europe and the United States based on several cohort studies especially in mCRC, while there is no database available including treatments for mCRC patients in Japan. Methods: We planned and conducted a large cohort study to establish database available including treatments for mCRC patients. Major enrollment criteria included documented mCRC and first line CT containing fluorouracil, oxaliplatin and bevacizumab, started treatment in or after January 2010. The primary objectives are to evaluate overall survival(OS), liver metastasectomy rate (LMR), R0 liver resection rate (R0). The secondary objectives are progression-free survival, response rate (RR), and safety. We performed a preplanned interim analysis of 6-month efficacy and safety data after the 500th patient registration. Results: Fr...