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Mizoguchi T, Tameshige Y, Kaneda T, Ogawa Y, Muranaka Y, Tamamura H. [Estimation of Uncertainty of the VMAT Absolute Dose Measurement Due to the Phantom Setup Error Using a Treatment Planning System]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2024; 80:345-353. [PMID: 38447969 DOI: 10.6009/jjrt.2024-1371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
PURPOSE When performing single-point dose verification in VMAT, it is necessary to avoid the regions with steep dose gradient. We propose a method to obtain the estimated value ( Uplan) of uncertainty of the absolute dose measurement due to the phantom setup error by using dose gradient calculated from treatment planning system (TPS), for evaluating the appropriate measurement points. METHODS The dose gradient was calculated from the planned dose values in the vicinity of the isocenter point using TPS. The phantom setup error was estimated. The Uplan was calculated using the proposed formula after estimating the phantom setup error. Then, the dose gradient was calculated from the measured dose values in the vicinity of the isocenter point specified by TPS using the Tough water phantom with ionization chamber (IC), and Umeas was calculated as in Uplan. RESULTS The correlation coefficient between Uplan and Umeas was 0.984, which indicates a high correlation. The average of the difference between Umeas and Uplan was -0.24%. We considered that this result was caused by the influence of volume averaging effect of IC. CONCLUSION The Uplan obtained from this proposed method reflects the uncertainty of the absolute dose measurement due to the phantom setup error and is useful for evaluating the appropriate measurement points for absolute dose measurement.
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Affiliation(s)
| | - Yuji Tameshige
- Division of Radiation Therapy, Nuclear Medicine Department, Fukui, Prefectural Hospital
| | - Tatsuya Kaneda
- Department of Radiological Technology, Fukui Prefectural Hospital
| | - Yoshiji Ogawa
- Department of Radiological Technology, Fukui Prefectural Hospital
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Hayashi K, Tanaka Y, Tsuda T, Nomura A, Fujino N, Furusho H, Sakai N, Iwata Y, Usui S, Sakata K, Kato T, Tada H, Kusayama T, Usuda K, Kawashiri MA, Passman RS, Wada T, Yamagishi M, Takamura M, Fujino N, Nohara A, Kawashiri MA, Hayashi K, Sakata K, Yoshimuta T, Konno T, Funada A, Tada H, Nakanishi C, Hodatsu A, Mori M, Tsuda T, Teramoto R, Nagata Y, Nomura A, Shimojima M, Yoshida S, Yoshida T, Hachiya S, Tamura Y, Kashihara Y, Kobayashi T, Shibayama J, Inaba S, Matsubara T, Yasuda T, Miwa K, Inoue M, Fujita T, Yakuta Y, Aburao T, Matsui T, Higashi K, Koga T, Hikishima K, Namura M, Horita Y, Ikeda M, Terai H, Gamou T, Tama N, Kimura R, Tsujimoto D, Nakahashi T, Ueda K, Ino H, Higashikata T, Kaneda T, Takata M, Yamamoto R, Yoshikawa T, Ohira M, Suematsu T, Tagawa S, Inoue T, Okada H, Kita Y, Fujita C, Ukawa N, Inoguchi Y, Ito Y, Araki T, Oe K, Minamoto M, Yokawa J, Tanaka Y, Mori K, Taguchi T, Kaku B, Katsuda S, Hirase H, Haraki T, Fujioka K, Terada K, Ichise T, Maekawa N, Higashi M, Okeie K, Kiyama M, Ota M, Todo Y, Aoyama T, Yamaguchi M, Noji Y, Mabuchi T, Yagi M, Niwa S, Takashima Y, Murai K, Nishikawa T, Mizuno S, Ohsato K, Misawa K, Kokado H, Michishita I, Iwaki T, Nozue T, Katoh H, Nakashima K, Ito S, Yamagishi M. Correction: Characterization of baseline clinical factors associated with incident worsening kidney function in patients with non-valvular atrial fibrillation: the Hokuriku-Plus AF Registry. Heart Vessels 2023; 38:412. [PMID: 36508013 DOI: 10.1007/s00380-022-02218-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kenshi Hayashi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Yoshihiro Tanaka
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Toyonobu Tsuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Akihiro Nomura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Noboru Fujino
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroshi Furusho
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Department of Cardiology, Ishikawa Prefectural Central Hospital, 2-1, Kuratsuki-higashi, Kanazawa, Japan
| | - Norihiko Sakai
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Yasunori Iwata
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Soichiro Usui
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Kenji Sakata
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takeshi Kato
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hayato Tada
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takashi Kusayama
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Keisuke Usuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Masa-Aki Kawashiri
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Rod S Passman
- Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Takashi Wada
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Masakazu Yamagishi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Osaka University of Human Sciences, Settsu, Osaka, Japan
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
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Shimizu M, Cho S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Prediction for cardiac prognosis in patients with congestive heart failure by machine learning on dual-isotope myocardial semiconductor SPECT. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Dual-isotope (low doze 201TlCl and 123I-β-methyl-P-iodophenyl-pentadecanoic acid (BMIPP)) single photon emission computed tomography (SPECT) is utilized to estimate myocardial damage in patients with congestive heart failure (CHF). However, predictive model construction on the SPECT for cardiac death by machine learning was not studied.
Purpose
To elucidate predictive value of machine learning model on dual-isotope SPECT for CHF.
Methods
We enrolled consecutive 310 patients who admitted with CHF (77.1±3.1 years, 164 males). After initial treatment, they underwent electrocardiography gated SPECT and observed in median 507 days [IQR: 165, 1032]. Multivariate Cox regression analysis for cardiac death was performed, and predictive model was constructed by ROC curve analysis and machine learning (Random Forest and Deep Learning). The accuracies (= [True positive + True negative] / Total) of the prediction models were compared with ROC curve model.
Results
Thirty-six patients fell into cardiac death. Cox analysis showed Age, left ventricular ejection fraction (LVEF), summed rest score (SRS) of BMIPP, and mismatch score were significant predictors (Hazard ratio: 1.068, 0.970, 1.032, 1.092, P value: <0.001, 0.014, 0.002, <0.001, respectively). ROC curve analysis of them revealed the accuracy of the cut-off value was 0.479–0.773. Conversely, machine learning model demonstrated higher accuracy for cardiac death (Random Forest: 0.895, Deep Learning: 0.935). The top 4 feature importance of the random forest were LVEF (0.299), SRS BMIPP (0.263), Age (0.262), and mismatch score (0.160).
Conclusion
Machine learning model on SPECT was superior to conventional statistic model for predicting cardiac death in patients with CHF.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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Yamakami Y, Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Shimada H, Manno T, Isshiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. The comparison of the chronic-phase vascular healing between bioabsorbable and durable polymer drug eluting stent by using optical coherence tomography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Bioabsorbable polymer drug eluting stents (BP-DESs) were designed to reduce a vascular inflammatory reaction compared to durable polymer drug eluting stents (DP-DESs). However, few studies have compared vascular responses to BP-DESs and DP-DESs.
Methods
We enrolled 88 consecutive patients with single culprit coronary artery lesions (31 lesions with acute coronary syndrome) undergoing a single stent-implantation. BP-DESs and DP-DESs were implanted in 50 (57%) and 38 patients (43%), respectively. All lesions underwent optical coherence tomography examination at chronic phase and intrastent OCT findings at the follow-up were evaluated in every 1-mm cross-sections (CSs).
Results
A total of 1887 CSs (BP-DES: 1096, DP-DES: 791) were analyzed. The median period of follow-up OCT was 293 (250–374) days. There were no differences in the patient, lesion, and initial clinical presentation of acute coronary syndrome (ACS). BP-DESs had significantly higher percent neointimal hyperplasia area, defined as neointimal hyperplasia area divided by stent area x 100 (18.4±9.0% vs. 16.1±9.9%, p<0.001), fewer malapposed struts (1.7% vs. 3.9%, p=0.005), fewer uncovered struts (3.6% vs. 5.8%, p=0.02) but higher frequency of superficial low intensity neointima (LIN) (7.7% vs. 3.4%, p<0.001). Multivariate logistic analysis showed that BP-DES (OR: 2.5, 95% CI: 1.49–4.08, p<0.001) and the initial clinical presentation of ACS (OR: 2.31, 95% CI: 1.47–3.62, p<0.001) are independent predictive factors for LIN.
Conclusion
BP-DESs showed homogenous neointimal growth and complete stent coverage quantitatively. Meanwhile, the significant relationships of BP-DES with LIN may suggest that the neointimal quality remains immature in BP-DESs in this period.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of cardiology, Tokyo, Japan
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5
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Kakubari S, Sakaida K, Asano M, Aramaki Y, Ito H, Yasui A, Iwamaru K, Kaneda T, Kitamura M, Matsumoto T, Miyamoto M, Mizuta K, Mochizuki T, Morioka M, Namura H, Yamoto R. Determination of Lycopene Concentration in Fresh Tomatoes by Spectrophotometry: A Collaborative Study. J AOAC Int 2020; 103:1619-1624. [PMID: 33112388 DOI: 10.1093/jaoacint/qsaa050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND Lycopene has been the object of considerable research attention recently, and the effects of the intake of lycopene, or of tomato products, have been studied in various ways. In Japan, interest in the health-promoting function of food components has increased. OBJECTIVE Developing a method to determine lycopene contents in tomato that meets the Japanese Agricultural Standard (JAS). METHOD In the proposed JAS method, the test sample consists of fresh tomatoes; a hexane-acetone mixture is utilized as the extraction solvent. A collaborative study was conducted to evaluate the interlaboratory performance of the method. RESULTS Ten laboratories participated and analyzed six test materials characterized by a lycopene content between 39 and 170 mg/kg as blind duplicates. After removing statistical outliers, RSDr ranged from 1.2 to 3.0% and RSDR ranged from 2.4 to 4.2%. The HorRat values were calculated and found to be in the 0.26-0.49 range. CONCLUSIONS The method for determining the lycopene content in tomato was evaluated by means of a collaborative study, and the reproducibility of this method was found to be acceptable. HIGHLIGHTS Intended for standardization in Japan, a method to determine lycopene content in tomato has been developed and shown to have acceptable precision in a collaborative study.
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Affiliation(s)
- Sachiko Kakubari
- Food and Agricultural Materials Inspection Center, 2-1 Shintoshin, Chuo-ku, Saitama 330-9731, Japan
| | - Kenichi Sakaida
- Food and Agricultural Materials Inspection Center, 2-1 Shintoshin, Chuo-ku, Saitama 330-9731, Japan
| | - Masahiro Asano
- Food and Agricultural Materials Inspection Center, 2-1 Shintoshin, Chuo-ku, Saitama 330-9731, Japan
| | - Yoshinori Aramaki
- Kagome Co., Ltd, 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan
| | - Hidekazu Ito
- Food Research Institute, National Agriculture and Food Research Organization, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
| | - Akemi Yasui
- Food Research Institute, National Agriculture and Food Research Organization, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
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6
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Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Iishiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. Optical coherence tomography findings in healed vulnerable plaques in patients with coronary artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Histopathological analysis or intracoronary image assessment of healed plaques (HPs) has been reported both in acute coronary syndrome (ACS) and stable angina pectoris (SAP) patients. However, background characteristics or lesion morphologies of HPs could not be fully clarified and their differences according to the clinical status remain undetermined.
Purpose
We sought to investigate the clinical and morphological characteristics and compare their differences among ACS and SAP patients in order to clarify the clinical significance in HPs lesions.
Methods
We enrolled consecutive 201 patients with 213 native coronary artery lesions (139 lesions with SAP, 42 ST elevation-ACS (STE-ACS) and 32 non-ST elevation ACS (NSTE-ACS) undergoing pre-intervention optical coherence tomography (OCT). HPs was defined as layered phenotype on OCT. Clinical and angiography characteristics and lesion morphologies on OCT were assessed.
Results
HPs were observed in 110 lesions (51.6%) and their prevalence were not different according to the clinical status (SAP:55.1%, STE-ACS:38.1%, NSTE-ACS:56.3%, p=0.14). Lesions with HPs had higher frequencies of angiography-eccentric lesions (62.7% vs. 35.9%, p<0.001) and OCT-macrophages (65.5% vs. 43.1%, p<0.001), and greater OCT-lumen area stenosis (%-AS) (77.1±10.2% vs. 73.6±10.6%, p=0.01) than those without HPs. Of lesions with HPs, OCT-thin-cap fibroatheroma (SAP 14.4%, STE-AC43.8%, NSTE-ACS 16.7%, p=0.03), plaque rupture (5.3%; 37.5%; 11.1%, p<0.001) and thrombus (6.6%, 75.0%, 22.2%, p=0.007) were more frequently observed in STE-ACS than in SAP patients, whereas OCT-microvessels were more frequent in SAP than in ACS patients (19.7%, 0.0%, 0.0%, p=0.02). Other OCT findings such as macrophages, cholesterol crystal, multiple layered phenotype, and %-AS were not significantly different according to the clinical status. Multivariate logistic regression analysis identified the angiography-eccentric lesions (odds ratio (OR): 2.97, 95% confidence intervals (CI): 1.68–5.25, p<0.001) and OCT macrophages (OR 2.41, 95% CI 1.36–4.27, p=0.003) as independent related factors for the existence of HPs.
Conclusions
The present study showed that HPs lesions had eccentric and large plaque burden, and persistent plaque inflammations regardless of clinical status, which might lead to future coronary events.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - A Iishiki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of Cardiovascular Medicine, Tokyo, Japan
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7
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Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Iishiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. Optical coherence tomography and coronary angioscopy assessment of healed vulnerable plaque components in patients with coronary artery lesions undergoing elective percutaneous coronary intervention. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Many vulnerable plaques would progress without clinical events and might result in healed plaques (HPs). Histopathological or intracoronary image assessment of HPs has been reported. However, the morphological characteristics of HPs remain unclear yet.
Purpose
We sought to assess the healed vulnerable plaque components in patients with coronary artery lesions using optical coherence tomography (OCT) and coronary angioscopy (CAS).
Methods
We enrolled 47 patients with 50 native coronary artery lesions with angiographical severe stenosis (>90% diameter-stenosis) and without severe calcification (36 lesions with stable angina pectoris (SAP) and 14 acute coronary syndrome (ACS)) undergoing pre-intervention OCT and CAS. HPs was defined as layered phenotype on OCT. Lesion morphologies and plaque characteristics in lesions with HPs were assessed using OCT and CAS images.
Results
HPs were observed in 27 lesions (54.0%) and their prevalence were similar among each clinical status (SAP 52.8%, ACS 57.1%, p=1.00). Lesions with HPs had higher prevalence of OCT-macrophage (88.0% vs. 52.0%, p=0.01), CAS-red thrombus (88.8% vs. 52.2%, p=0.004) and CAS-low grade-yellow plaque (grade 1) (55.6% vs. 21.7%, p=0.02) than those without. SAP lesions with HPs had higher prevalence of CAS-yellow plaque (35.3% vs. 5.9%, p=0.09) and OCT-thin-cap fibroatheroma (42.1% vs. 5.9%, p=0.04) than SAP without HPs. ACS lesions with HPs had less CAS-red thrombus (0.0% vs. 50.0%, p=0.03) and OCT-plaque rupture (12.5% vs. 66.7%, p=0.04) than ACS without HPs. Multivariate logistic regression analysis revealed that OCT-macrophages (odds ratio (OR): 6.65, 95%-confidence intervals: 1.07–41.5, p=0.043), CAS-red thrombus (OR 8.77, 95% CI 1.33–57.8, p=0.02), and low grade-yellow plaque (OR 13.05, 95% CI 1.97–86.5, p=0.008) were independently related with the existence of HPs lesions. Combination of these 3 factors showed a high predictive value of OCT-HPs lesions (90.9%).
Conclusions
HPs lesions showed the lower lesion vulnerability than common ACS lesions but had more intraplaque inflammatory condition compared with common SAP lesions. Combined CAS and OCT examination might be useful to clarify the plaque components of HPs lesions in vivo, leading to help us understand the clinical significance of HPs.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - A Iishiki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of Cardiovascular Medicine, Tokyo, Japan
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8
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Shimizu M, Cho S, Hara K, Ohmori M, Kaneda T, Tateishi R, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Differences of ST level at J-point on 12-lead electrocardiography can distinguish takotsubo syndrome and acute anterior myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Qualitative difference of ST elevation/depression on 12-leads electrocardiography (ECG) at onset was reported in patients with Takotsubo syndrome (TTS) and acute anterior myocardial infarction (ant AMI). However, quantitative difference of those was not elucidated.
Purpose
To investigate differences of ST level at J point on ECG between TTS and ant AMI by automated calculating system.
Methods
We firstly enrolled consecutive 40 patients of TTS, and among 500 ant AMI patients, one to two random matching was done by their age and gender. Finally, 40+80 patients (74.5±11.2 years, 87 females) were enrolled. ECG at onset of both group was measured by automated system (ECAPs12c: Nihon-Koden).
Results
ST level of TTS at J-point in I/II/V4–6 lead was significantly elevated comparing to that of ant AMI. Conversely, Conversely, significant ST depression in aVR and no ST elevation in V1 of TTS was observed in TTS. Logistic regression analysis revealed that ST elevation in I lead and no ST elevation in V1 lead showed high odds ratio and low P value.
Conclusion
Automated measured ST level at J-point was a powerful tool to distinguish TTS and ant AMI at onset.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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9
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Shimizu M, Cho S, Hara K, Ohmori M, Kaneda T, Tateishi R, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Diagnostic performance of 18-leads electrocardiography to distinguish takotsubo syndrome and acute anterior myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Electrocardiographic (ECG) features on acute phase of Takotsubo syndrome (TTS) is recognized to mimic that of acute anterior myocardial infarction (ant AMI). However, the difference of synthesized 18-leads ECG of both diseases was not elucidated.
Purpose
To elucidate diagnostic performance of 18-leads ECG to distinguish TTS and acute anterior AMI.
Methods
We firstly enrolled consecutive 40 patients of TTS, and among 500 ant AMI patients, one to two matching was done by their age and gender. Finally, 40+80 patients (74.5±11.2 years, 87 females) were enrolled, and ECG at onset of both group was estimated. Because of multicollinearity, all significant differences were compared by machine learning (Random Forest method).
Results
Prevalence of Q wave had no difference. Conversely, ST depression in TTS and ST elevation in ant AMI were significant differences in V7–9 leads. T-wave polarity of V3R-V9 leads were significantly different (flat T-wave in TTS and positive in ant AMI). Machine learning revealed T wave polarity in V7 lead had the highest feature importance.
Conclusion
18-leads ECG at onset had powerful diagnostic performance to distinguish the two diseases.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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10
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Kibata K, Izuno H, Nakahama K, Yamanaka Y, Kaneda T, Yoshioka H, Kurata T, Nomura S. Study of searching on efficacy of immune checkpoint inhibitor for the non-small cell lung cancer using FDG-PET/CT and thallium SPECT. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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11
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Manno T, Shimizu M, Ohomri M, Taomoto Y, Kaneda T, Yamakami Y, Iiya M, Shimada H, Isshiki A, Kimura S, Fujii H, Suzuki M, Hirao K. P4386Prognostic value of pressure-strain curve analysis by echocardiography for cardiac death in patients with congestive heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Pressure-strain curve analysis (PS-curve) is novel method of echocardiographic evaluation for left ventricular (LV) systolic myocardial work including the effect of blood pressure. However, the prognostic value of PS-curve for prospective cardiac death in patients with congestive heart failure (CHF).
Purpose
To elucidate the prognostic value of PS-curve analysis for cardiac death in patients with CHF.
Methods
We enrolled 63 consecutive sinus-rhythm patients with CHF admission who were evaluated by PS-curve analysis before discharge (76.0±13.3 years, 39 males). Endpoint was set as all cardiac death.
Results
Observation period was median 327 days [25%: 91, 75%: 656 days], and the longest period was 1004 days. Five patients died for cardiac causes. Multivariate Cox regression analysis (stepwise regression) revealed diastolic blood pressure (BP) and global constructive work (GCW) were independent predictors (Hazard ratio: 0.854, 0.996, P value: 0.016, 0.019, respectively). ROC curve analysis demonstrated GCW ≤601 had high diagnostic performance for cardiac death (specificity 0.891, sensitivity 0.800, area under ROC 0.824). Kaplan-Meyer curve analysis indicated the group with GCW ≤601 was worse cardiac prognosis (Logrank P<0.001).
Cox Hazard Regression Analysis Univariate Multivariate (stepwise regression) Hazard Ratio 95% CI P Hazard Ratio 95% CI P BP systole (mmHg) 0.915 0.85–0.99 0.026 BP diastole (mmHg) 0.915 0.84–0.99 0.043 0.854 0.75–0.97 0.016 LVDd (mm) 1.064 1.01–1.12 0.025 NA LVDs (mm) 1.066 1.01–1.12 0.016 LVEF (%) 0.963 0.91–1.02 0.221 LAD (mm) 1.197 1.06–1.36 0.005 GWE 0.937 0.88–0.99 0.041 GWI 0.998 0.99–0.99 0.041 NA GCW 0.998 0.99–0.99 0.037 0.996 0.99–0.99 0.019 GWW 0.996 0.98–1.01 0.502 Considering multicollinearity, we excluded GWI and LVDd (correlation coefficient: GWI and GCW = 0.979, LVDd and LVDs = 0.942).
Conclusion
Pressure-strain curve analysis had powerful predictive value for cardiac death in patients with CHF.
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Affiliation(s)
- T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohomri
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hirao
- Tokyo Medical and Dental University, Departmentof Cardiology, Tokyo, Japan
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12
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Shimizu M, Iiya M, Hara K, Ohmori M, Taomoto Y, Kaneda T, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M. P5643Simple 12-leads electrocardiography can predict cardiac death in patients with complete left bundle branch block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Patients with complete left bundle branch block (CLBBB) generally fall in two categories: CLBBB with good prognosis and poor prognosis. However, a simple electrocardiography (ECG) was considered impossible to predict the two categories.
Purpose
To elucidate the possibility of 12-leads ECG for predicting cardiac prognosis in patients with CLBBB
Methods
To estimate myocardial damage and left ventricular function, the ECG was performed with semiconductor SPECT simultaneously. Among consecutive 5864 patients who underwent ECG gated SPECT, finally 103 sinus-rhythm patients were enrolled. The observed period of them was median 632 days, and primary endpoint was set as cardiac death.
Results
Eight patients fell into cardiac death. Cox univariate analysis showed ventricular activation time (VAT: duration from onset of Q wave to peak of R wave) in V1 lead, T wave amplitude in aVR (aVR T-amp), and multiple fragmented QRS (At least 2 fQRS in LV anterior/inferior/lateral wall), and left ventricular ejection fraction, standard deviation of phase analysis (Phase SD), and summed rest score were significant predictors. After optimization of all significant continuous predictors by ROC curve analysis, all the significant predictors were analyzed by multivariate Cox analysis (stepwise regression). VAT in V1 (Hazard ratio: 4.594, P=0.034), aVR T-amp ≥-85microV (HR: 11.11, P=0.029), and Phase SD≥48.7 (HR6.047, P=0.035) were independent predictors. Kaplan-Meyer curve analysis demonstrated VAT V1≥70 and aVR T amp≥-85 showed the worst prognosis (P=0.008).
Cox Regression after Optimization by ROC Univariate Multivariate (Stepwise regression) HR 95% CI P HR 95% CI P VAT I ≥70 6.861 1.759–26.76 0.006 4.594 1.126–18.75 0.034 T amp in aVR ≥−85 27.34 3.458–216.2 0.002 11.11 1.274–96.85 0.029 Multiple fQRS 3.836 1.081–13.61 0.037 LVEF ≤37% 7.250 1.874–28.04 0.004 SD ≥48.7 17.30 3.671–81.57 <0.001 6.047 1.133–32.28 0.035 SRS≥17 4.178 1.206–14.48 0.024 SD: standard deviation of histogram by phase analysis of SPECT; SRS: summed rest score by myocardial perfusion analysis of SPECT.
Conclusion
Simple 12-leads ECG could predict the prognosis of patients with CLBBB.
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
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13
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Ogawa Y, Naganuma A, Inagawa M, Kimura M, Kanai M, Yoshida T, Kaneda T, Morohoshi A, Shimoda C, Sakamoto K, Manome M, Noguchi K, Tanaka T, Ogawa T, Ishihara H. MON-PO629: Indications for Percutaneous Endoscopic Gastrostomy in Patients with Acute Cerebral Infarction. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32462-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Manno T, Kaneda T, Suzuki M, Goto K, Osaka Y, Miyazaki T, Suzuki A, Kurihara K, Ono Y, Otomo K, Shimizu S, Hirao K. P6467Echocardiographic comparison about left atrium between cryoballoon and radiofrequency ablation in patients with paroxysmal atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Goto
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - Y Osaka
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - T Miyazaki
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - A Suzuki
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - K Kurihara
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - Y Ono
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - K Otomo
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - S Shimizu
- NHO Disaster Medical Center, Department of Cardiology, Tokyo, Japan
| | - K Hirao
- Tokyo Medical and Dental University, Departmentof Cardiology, Tokyo, Japan
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15
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Manno T, Shimizu M, Ohomri M, Taomoto Y, Kaneda T, Yamakami Y, Iiya M, Shimada H, Fujii H, Suzuki M, Yamawake N, Nishizaki M, Hirao K. P4728Prognostic value of heart rate variability for cardiac events after discharge in patients with congestive heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Manno
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - M Ohomri
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - N Yamawake
- Yokohama Minami Kyosai Hospital, Dept. of Cardiology, Yokohama, Japan
| | - M Nishizaki
- Odawara Cardiovascular Hospital, Dept. of Cardiology, Odawara, Japan
| | - K Hirao
- Tokyo Medical and Dental University, Dept. of Cardiology, Tokyo, Japan
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16
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Shimizu M, Ohmori M, Taomoto Y, Kaneda T, Yamakami Y, Iiya M, Shimada H, Manno T, Fujii H, Suzuki M, Yamawake N, Nishizaki M. P2760Prognostic value of left ventricular contractile entropy for the presence of chronic total occlusion in coronary artery disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - N Yamawake
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
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17
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Shimizu M, Ohmori M, Taomoto Y, Kaneda T, Yamakami Y, Iiya M, Shimada H, Manno T, Fujii H, Suzuki M, Yamawake N, Nishizaki M, Sakurada H, Hiraoka M. P4727T-wave amplitude in aVR for left ventricular dyssynchrony in patients with complete left bundle branch block. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - N Yamawake
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - H Sakurada
- Tokyo Metropolitan Okubo Hospital, Tokyo, Japan
| | - M Hiraoka
- Tokyo Medical and Dental University, Tokyo, Japan
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18
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Ohkubo H, Fuyuki A, Arimoto J, Higurashi T, Nonaka T, Inoh Y, Iida H, Inamori M, Kaneda T, Nakajima A. Efficacy of percutaneous endoscopic gastro-jejunostomy (PEG-J) decompression therapy for patients with chronic intestinal pseudo-obstruction (CIPO). Neurogastroenterol Motil 2017. [PMID: 28631871 DOI: 10.1111/nmo.13127] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUNDS Chronic intestinal pseudo-obstruction (CIPO) is an intractable rare digestive disease manifesting persistent small bowel distension without any mechanical cause. Intestinal decompression is a key treatment, but conventional method including a trans-nasal small intestinal tube is invasive and painful. Therefore, a less invasive and tolerable new decompression method is urgently desired. We conducted a pilot study and assessed the efficacy and safety of percutaneous endoscopic gastro-jejunostomy (PEG-J) decompression therapy in CIPO patients. METHODS Seven definitive CIPO patients (2 males and 5 females) were enrolled. All patients received PEG-J decompression therapy. The number of days with any abdominal symptoms in a month (NODASIM), body mass index (BMI), serum albumin level (Alb), and small intestinal volume before and after PEG-J were compared in all patients. RESULTS Percutaneous endoscopic gastro-jejunostomy was well tolerated and oral intake improved in all patients. NODASIM has significantly decreased (24.3 vs 9.3 days/months) and BMI/Alb have significantly increased (14.9 vs 17.2 kg/m2 and 2.6 vs 3.8 g/dL, respectively), whereas total volume of the small intestine has not significantly reduced (4.05 vs 2.59 L, P=.18). Reflux esophagitis and chemical dermatitis were observed in one case but was successfully treated conservatively. CONCLUSIONS & INFERENCES Percutaneous endoscopic gastro-jejunostomy decompression therapy can contribute greatly to improvement of abdominal symptoms and nutritional status in CIPO patients. Although sufficient attention should be paid to acid reflux symptoms, PEG-J has the potential to be a non-invasive novel decompression therapy for CIPO available at home. However, accumulation of more CIPO patients and long-term observation are needed (UMIN000017574).
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Affiliation(s)
- H Ohkubo
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - A Fuyuki
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - J Arimoto
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Higurashi
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Nonaka
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | - Y Inoh
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - H Iida
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - M Inamori
- Department of Medical Education, Yokohama City University School of Medicine, Yokohama, Japan
| | - T Kaneda
- Department of Radiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - A Nakajima
- Hepatology and Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
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Yamaguchi Y, Okano T, Nishimura K, Kita K, Kaneda T. Intraoral vertical ramus osteotomy with the stripping of medial pterygoid muscle will yield the postoperative condylar morbidity and temporomandibular dysfunction? Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kaneda T, Yoshioka H, Tamiya M, Tamiya A, Hata A, Okada A, Niwa T, Shiroyama T, Kanazu M, Ishida T, Katakami N. Differential efficacy of cisplatin plus pemetrexed between L858R and Del-19 in advanced EGFR-mutant non-squamous non-small cell lung cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kaneda T, Hayashi O, Shibata M, Kawasaki H, Inoue H, Fujino H. Estimation of the Long-Term Dimensional Stability Performance of Hydrocarbon Blown Rigid Polyurethane Foams for Insulation—A Novel Approach. J CELL PLAST 2016. [DOI: 10.1106/fed0-e5wp-8njx-pd66] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
For years, HCs with zero ODP and low GWP have been used as alternative B.A. (blowing agents) in the appliance industries. The improvement of insulation performance and lowering costs are significant factors in the development of R-PU (rigid polyurethane) foams especially blown with HCs. The development of R-PU foam with a lower density for cost effectiveness is progressing at present. Positive experiences as to the long-term dimensional stability of pentane blown R-PU foam accelerated this movement. The most important factor in the development of R-PU foam with a lower density is long-term dimensional stability. In this report, we propose a novel long-term dimensional stability test and its appropriateness is discussed. The influence of formulation and the boiling point (B.P.) of B.A. on long-term dimensional stability have also been studied. The use of a blowing agent mixture of cyclopentane and iso- or n-pentane with a lower B.P. allowed the achievement of density savings. The understanding of the relation between the formulation and long-term dimensional stability is an important issue for the development of R-PU foam.
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Affiliation(s)
- T. Kaneda
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
| | - O. Hayashi
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
| | - M. Shibata
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
| | - H. Kawasaki
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
| | - H. Inoue
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
| | - H. Fujino
- Mitsui Chemicals, Inc., 1190 Kasama-cho Sakae-ku, Yokohama-City 247-8567 Japan
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Hirahara N, Kaneda T, Sasaki Y, Fukuda T, Ito K, Kawashima Y, Muraoka H, Muramatsu T. Characteristic MR findings of rheumatic arthritis in the temporomandibular joints. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Muraoka H, Kaneda T, Sasaki Y, Kawashima Y, Fukuda T, Muramatsu T, Ito K, Hirahara N. Relationship between joint effusion and parotid lymph nodes in temporomandibular disorders. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kaneda T, Kawashima Y, Sasaki Y, Suemitsu M, Okada H, Hayakawa Y, Sakae T, Muraoka H, Hirahara N. Clinical application of parameteric X-ray in diagnostic imaging: Preliminary study. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Locatelli F, Choukroun G, Fliser D, Moecks J, Wiggenhauser A, Gupta A, Swinkels DW, Lin V, Guss C, Pratt R, Carrilho P, Martins AR, Alves M, Mateus A, Gusmao L, Parreira L, Assuncao J, Rodrigues I, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E, Zitt E, Sturm G, Kronenberg F, Neyer U, Knoll F, Lhotta K, Weiss G, Robinson BM, Larkina M, Bieber B, Kleophas W, Li Y, Locatelli F, McCullough K, Nolen JG, Port FK, Pisoni RL, Kalicki RM, Uehlinger DE, Ogawa C, Kanda F, Tomosugi N, Maeda T, Kuji T, Fujikawa T, Shino M, Shibata K, Kaneda T, Nishihara M, Satta H, Kawata SI, Koguchi N, Tamura K, Hirawa N, Toya Y, Umemura S, Chanliau J, Martin H, Stamatelou K, Gonzalez-Tabares L, Manamley N, Farouk M, Addison J, Donck J, Schneider A, Gutjahr-Lengsfeld L, Ritz E, Scharnagl H, Gelbrich G, Pilz S, Macdougall IC, Wanner C, Drechsler C, Kuntsevich V, Charen E, Kobena D, Sheth N, Siktel H, Levin NW, Winchester JF, Kotanko P, Kaysen G, Kuragano T, Kida A, Yahiro M, Nanami M, Nagasawa Y, Hasuike Y, Nakanishi T, Stamopoulos D, Mpakirtzi N, Dimitratou V, Griveas I, Lianos E, Grapsa E, Sasaki Y, Yamazaki S, Fujita K, Kurasawa M, Yorozu K, Shimonaka Y, Suzuki N, Yamamoto M, Zwiech R, Szczepa ska J, Bruzda-Zwiech A, Rao A, Gilg J, Caskey F, Kirkpantur A, Balci MM, Turkvatan A, Afsar B, Alkis M, Mandiroglu F, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Hasuike Y, Kida A, Oue M, Yamamoto K, Kimura T, Fukao W, Yahiro M, Kaibe S, Nanami M, Nakanishi T, Djuric PS, Ikonomovski J, Tosic J, Jankovic A, Majster Z, Stankovic Popovic V, Dimkovic N, Aicardi Spalloni V, Del Vecchio L, Longhi S, Violo L, La Milia V, Pontoriero G, Locatelli F, Shino M, Kuji T, Fujikawa T, Toya Y, Umemura S, Macdougall I, Rumjon A, Mangahis E, Goldstein L, Ryzlewicz T, Becker F, Kilgallon W, Fukasawa M, Otake Y, Yamagishi T, Kamiyama M, Kobayashi H, Takeda M, Toida T, Sato Y, Fujimoto S. DIALYSIS ANAEMIA. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Buiten MS, De Bie MK, Van Dam B, Bouma-De Krijger A, Dekker FW, Jukema JW, Rabelink TJ, Rotmans JI, Parfrey PS, Drueke T, Block GA, Kubo Y, Chertow GM, Kosmadakis G, Carceles O, Da Costa Correia E, Somda F, Aguilera D, Shibata K, Sohara H, Satta H, Nishihara M, Koguchi N, Kuji T, Kaneda T, Kawata S, Yasuda G, Shinzato T, Messa M, Tomei P, Motton M, Ortalda V, Gangemi C, Lupo A. DIALYSIS CARDIOVASCULAR COMPLICATIONS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fontsere N, Mestres G, Burrel M, Barrufet M, Montana X, Arias M, Ojeda R, Maduell F, Campistol JM, Nagaraja P, Rees D, Husein T, Chess J, Lin CC, Yang WC, Khosravi M, Kandil H, Cross J, Hopkins S, Collier S, Lopes D, Pereira S, Gomes AM, Ventura A, Martins V, Seabra J, Rothuizen TC, Damanik F, Visser MJT, Lavrijsen T, Cox MAJ, Moroni L, Rabelink TJ, Rotmans JI, Fontsere N, Cardozo C, Donate J, Soriano A, Muros M, Pons M, Mensa J, Campistol JM, Navarro-Gonzalez JF, Maduell F, Wijewardane A, Murley A, Powers S, Allen C, Baharani J, Wilmink T, Esenturk M, Zengin M, Dal M, Tahtal N, Shibata K, Shinzato T, Satta H, Nishihara M, Koguchi N, Kuji T, Kawata S, Kaneda T, Yasuda G, Scrivano J, Pettorini L, Rutigliano T, Ciavarella GM, De Biase L, Punzo G, Mene P, Pirozzi N, El Haggan W, Belazrague K, Ehoussou S, Foucher V, El Salhy M, Ouellet G, Davis J, Caron P, Leblanc M, Pettorini L, Romitelli F, Fazzari L, Scrivano J, Ortu G, Di Stasio E, Punzo G, Mene P, Pirozzi N, Loizzo G, Vigano SM, Bacchini G, Rocchi E, Sala V, Pontoriero G, Letachowicz K, Go biowski T, Kusztal M, Letachowicz W, Weyde W, Klinger M, Murley A, Wijewardane A, Powers S, Allen C, Hollingsworth L, Wilmink T, Baharani J, Roca-Tey R, Samon R, Ibrik O, Roda A, Gonzalez-Oliva JC, Martinez-Cercos R, Viladoms J, Renaud CJ, Lim EK, Seow TY, Teh HS, Tosic J, Jankovic A, Djuric P, Radovic Maslarevic V, Popovic J, Dimkovic N, Kazantzi A, Trigka K, Buono F, Laurino S, Toriello G, Di Luccio R, Galise A, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Asano M, Oguchi K, Saito A, Onishi Y, Yamamoto Y, Fukuhara S, Akiba T, Akizawa T, Kurokawa K, Guedes Marques M, Ibeas J, Maia P, Ponce P, Chang KY, Park HS, Kim HW, Choi BS, Park CW, Yang CW, Jin DC, Likaj E, Seferi S, Caco G, Petrela E, Barbullushi M, Idrizi A, Thereska N, Lomonte C, Casucci F, Libutti P, Lisi P, Basile C, Ancarani P, Valsuani G, Cavallo L, Parodi D, Lorusso C, Renaud C, Lai BC, Tho S, Yeoh L, Guedes Marques M, Botelho C, Maia P, Ponce P, Yankovoy A, Alexandr S, Smoliacov A, Stepanov V, Rees D, Parker C, Davies P, Taylor S, Mikhail A, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Gubensek J, Persic V, Vajdic B, Ponikvar R, Buturovic-Ponikvar J, Hadimeri U, Warme AV, Stegmayr B, Jankovic A, Suvakov S, Tosic J, Damjanovic T, Djuric P, Bajcetic S, Radovic-Maslarevic V, Popovic J, Simic T, Dimkovic N, Likaj E, Seferi S, Petrela E, Idrizi A, Rroji M, Barbullushi M, Thereska N, Chua HL, Kanda H, See SL, Liew NC, Tsuchida K, Tomo T, Fukasawa M, Kawashima S, Minakuchi J, Thanaraj V, Dhaygude A, Ikeda K, Forneris G, Cecere P, Pozzato M, Trogolo M, Vallero A, Mesiano P, Roccatello D, Esenturk M, Zengin M, Keskin L, Loizzo G, Vigano SM, Bacchini G, Rocchi E, Sala V, Pontoriero G, Casey JR, Hanson CS, Winkelmayer WC, Craig J, Palmer S, Strippoli G, Tong A, Ferrara D, Scamarda S, Bernardino L, Amico L, Lorito MC, Incalcaterra F, Visconti L, Visconti G, Valenza F, D'Amato F, Di Napoli A, Tazza L, Chicca S, Lapucci E, Silvestri P, Di Lallo D, Michelozzi P, Davoli M. DIALYSIS VASCULAR ACCESS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
SUMMARY Mandibular actinomycosis is an uncommon disease. We retrospectively reviewed 6 patients with pathologically proven mandibular actinomycosis who underwent both CT and MR imaging to evaluate the characteristic imaging findings. CT results showed an irregularly marginated lesion with increased bone marrow attenuation, osteolysis, and involvement of the skin in all patients. Periosteal reaction and intralesional gas were seen in 4 patients. MR imaging results revealed low signal on T1-weighted and high signal on T2-weighted images of the mandible, and moderate heterogeneous enhancement was seen in all patients who received intravenous contrast. Cervical lymphadenopathy was not observed. Involvement of the masseter, lateral pterygoid, and medial pterygoid muscles was seen in 4 patients, whereas parotid gland and submandibular gland as well as parapharyngeal space involvement were seen in 3 patients. Familiarity with the imaging findings of mandibular actinomycosis may help to diagnosis this entity.
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Affiliation(s)
- Y Sasaki
- From the Departments of Radiology (Y.S., T.K., K.S.)
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Ogura I, Kaneda T, Sasaki Y, Sekiya K, Tokunaga S. Characteristic power Doppler sonographic images of tumorous and non-tumorous buccal space lesions. Dentomaxillofac Radiol 2013; 42:20120460. [PMID: 23520393 DOI: 10.1259/dmfr.20120460] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the characteristic power Doppler sonographic images of buccal space tumorous and non-tumorous lesions. METHODS 48 patients with buccal space lesions were evaluated with greyscale sonography followed by power Doppler sonography with a 12 MHz linear transducer. On greyscale sonography, buccal space lesions were assessed for the boundary (clear or unclear), echogenicity (hypoechoic or isoechoic) and internal architecture (homogeneous or heterogeneous). Power Doppler sonography was performed to evaluate the vascular signals within the buccal space lesions. RESULTS 48 lesions were found in the 48 patients; of these 48 lesions, 28 were tumourous and 20 were non-tumourous. In the 28 tumours, 15 cases showed clear boundaries, 15 cases were hypoechoic relative to adjacent tissues and 22 cases presented with a heterogeneous appearance on greyscale sonography. The internal vascularity of 19 tumours was shown using power Doppler sonography. In the 20 non-tumorous lesions, 11 cases showed clear boundaries, 17 cases were hypoechoic relative to adjacent tissues and 13 cases presented with a homogeneous appearance on greyscale sonography. 18 non-tumorous lesions showed no internal vascularity using power Doppler sonography. Logistic multivariate regression analysis between the tumour group and the non-tumorous lesions group demonstrated that the internal architecture (odds ratio = 8.270, p = 0.029) and vascular signals (odds ratio = 17.533, p = 0.003) were significant variables. CONCLUSIONS Power Doppler sonography is a useful technique for the differential diagnosis of tumorous and non-tumorous buccal space lesions.
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Affiliation(s)
- I Ogura
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan.
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Coentrao L, Ribeiro C, Santos-Araujo C, Neto R, Pestana M, Rahman E, Rahman H, Ahmed D, Mousa D, El Bishlawi M, Shibahara H, Shibahara N, Takahashi S, Dupuis E, Duval X, Dornic Q, Bonnal C, Lucet JC, Cerceau O, Randoux C, Balde C, Besson F, Mentre F, Vrtovsnik F, Koutroubas G, Malindretos P, Zagotsis G, Makri P, Syrganis C, Mambelli E, Mancini E, Elia C, Guadagno V, Facchini MG, Zucchelli A, Grazia M, Patregnani L, Santoro A, Stefan G, Stefan G, Stancu S, Capusa C, Ailioaiei OR, Mircescu G, Anwar S, Little C, Kingston R, Diwakar P, Kaikini R, Syrganis C, Koutroubas G, Zagotsis G, Malindretos P, Makri P, Nikolaou E, Loukas G, Sabry A, Alsaran K, Al Sherbeiny S, Abdulkader M, Kwak I, Song S, Seong E, Lee S, Lee D, Kim I, Rhee H, Silva F, Queiros J, Malheiro J, Cabrita A, Rocha A, Bamidis P, Bamidis P, Liaskos C, Chryssogonidis I, Frantzidis C, Papagiannis A, Vrochides D, Lasaridis A, Nikolaidis P, Malindretos P, Kotwal S, Muir C, Hawley C, Snelling P, Gallagher M, Jardine M, Shibata K, Shibata K, Toya Y, Umemura S, Iwamoto T, Ono S, Ikeda E, Kitazawa A, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Kaneda T, Yamada Y, Murakami T, Yanagi M, Yasuda G, Mathieu S, Yves D, Jean-Michel T, Nicolas Q, Jean-Francois C, Ibrahim M, Abdel Salam M, Awadalla A, Bichari W, Zaki S, Roca-Tey R, Samon R, Ibrik O, Roda A, Gonzalez-Oliva JC, Martinez-Cercos R, Viladoms J, Lin CC, Yang WC, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Cheong MA, Ogawa T, Kiba T, Okazaki S, Hatano M, Iwanaga M, Noiri C, Matsuda A, Hasegawa H, Mitarai T, DI Napoli A, DI Lallo D, Tazza L, De Cicco C, Salvatori MF, Chicca S, Guasticchi G, Gelev S, Trajceska L, Srbinovska E, Pavleska S, Oncevski A, Dejanov P, Gerasomovska V, Selim G, Sikole A, Wilson S, Mayne T, Krishnan M, Holland J, Volz A, Good L, Nissenson A, Stavroulopoulos A, Aresti V, Maragkakis G, Kyriakides S, Rikker C, Rikker C, Juhasz E, Tornoci L, Tovarosi S, Greguschik J, Mag O, Rosivall L, Golebiowski T, Golebiowski T, Watorek E, Kusztal M, Letachowicz K, Letachowicz W, Madziarska K, Augustyniak Bartosik H, Krajewska M, Weyde W, Klinger M, Capitanini A, Lange S, Cupisti A, Schier T, Gobel G, Bosmuller C, Gruber I, Tiefenthaler M, Shipley T, Adam J, Sweeney D, Fenwick S, Mansy H, Ahmed S, Moore I, Iwamoto T, Shibata K, Yasuda G, Kaneda T, Murakami T, Kuji T, Koguchi N, Satta H, Nishihara M, Kawata S, Yanagi M, Yamada Y, Ono S, Ikeda E, Kitazawa A, Toya Y, Umemura S, Vigeral P, Saksi S, Flamant M, Boulanger H, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Park WD, Cheong MA, Nikam M, Tavakoli A, Chemla E, Evans J, Malete H, Matyas L, Mogan I, Lazarides M, Ebner A, Shi Y, Shi Y, Zhang J, Cheng J, Frank LR, Melanie H, Dominique B, Michel G, Ikeda K, Yasuda T, Yotueda H, Nikam M, Ebah L, Jayanti A, Evans J, Kanigicherla D, Summers A, Manley G, Dutton G, Chalmers N, Mitra S, Checherita IA, Niculae A, Radulescu D, David C, Turcu FL, Ciocalteu A, Persic V, Persic V, Buturovic-Ponikvar J, Ponikvar R, Touam M, Touam M, Menoyo V, Drueke T, Rifaat M, Muresan C, Abtahi M, Koochakipour Z, Joly D, Baharani J, Rizvi S, Ng KP, Buzzi L, Sarcina C, Alberghini E, Ferrario F, Baragetti I, Santagostino G, Furiani S, Corghi E, Sarcina C, Terraneo V, Rastelli F, Bacchini G, Pozzi C, Adorati Menegato M, Mortellaro R, Locicero A, Romano A, Manzini PP, Steckiph D, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S, Barros F, Vaz R, Carvalho B, Neto R, Martins P, Pestana M, Likaj E, Likaj E, Seferi S, Rroji M, Idrizi A, Duraku A, Barbullushi M, Thereska N, Shintaku S, Kawanishi H, Moriishi M, Bansyodani M, Nakamura S, Saito M, Tsuchiya S. Vascular access. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ogura I, Kaneda T, Mori S, Sekiya K, Ogawa H, Tsukioka T. Characterization of mandibular fractures using 64-slice multidetector CT. Dentomaxillofac Radiol 2012; 41:392-5. [PMID: 22282503 DOI: 10.1259/dmfr/67127210] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this study was to characterize mandibular fracture locations using 64-slice multidetector CT (MDCT). METHODS CT scans of 138 patients with mandibular fractures who underwent 64-slice MDCT were studied. Mandibular fractures were classified into five types: median, paramedian, angle, condylar and coronoid process. Statistical analysis for the relationship between multiple fractures and type of mandibular fractures was performed using χ(2) test with Fisher's exact test. RESULTS The percentage of multiple mandibular fractures was 80.9% median type, 74.3% paramedian type, 52.9% angle type and 60.9% condylar type. The resultant data showed a significant relationship between multiple fractures and the median type (p = 0.000), paramedian type (p = 0.002) and condylar type (p = 0.003). CONCLUSION The results suggest that multiple fractures are related to the type of mandibular fractures.
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Affiliation(s)
- I Ogura
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Chiba, Japan.
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Ogura I, Kaneda T, Mori S, Sakayanagi M, Kato M. Magnetic resonance characteristics of temporomandibular joint disc displacement in elderly patients. Dentomaxillofac Radiol 2011; 41:122-5. [PMID: 22116131 DOI: 10.1259/dmfr/1286942] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The purpose of this study was to evaluate the MR characteristics of temporomandibular joint (TMJ) disc displacement in elderly patients. METHODS Of the MR images of 1660 TMJs in 847 patients with disc displacement who underwent MRI for suspected temporomandibular disorders, 301 TMJs in 154 patients aged over 50 years were studied as an elderly group. These MR images of the elderly group were compared with those of a control group (1359 TMJs in 693 patients aged under 51 years) concerning disc displacement with or without reduction, joint effusion and osteoarthrosis. RESULTS The incidence of disc displacement with osteoarthrosis was significantly different between the elderly (41.9%) and the control (19.8%) groups (p = 0.000). Logistic multivariate regression analysis demonstrated that the osteoarthrosis was a significant variable (odds ratio = 2.94, p = 0.000). CONCLUSIONS This study suggests that MR characteristics of TMJ disc displacement in elderly patients includes osteoarthrosis.
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Affiliation(s)
- I Ogura
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
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Santos C, Ventura A, Gomes AM, Pereira S, Almeida C, Seabra J, Segelmark M, Mattsson L, Said S, Olde B, Solem K, Yu X, Zhang B, Sun B, Mao H, Xing C, Gruss E, Portoles J, Tato A, Lopez-Sanchez P, Jimenez P, de la Cruz R, Furaz K, Martinez S, Mas M, Andres MM, Corchete E, Kim YO, Kim HG, Kim BS, Song HC, Choi EJ, Ibeas J, Vallespin J, Fortuno JR, Rodriguez-Jornet A, Grau C, Merino J, Branera J, Perendreu J, Granados I, Mateos A, Jimeno V, Moya C, Ramirez J, Falco J, Gimenez A, Garcia M, Morgado E, Pinho A, Guedes A, Guerreiro R, Mendes P, Bexiga I, Silva A, Marques J, Neves P, Shibata K, Iwamoto T, Murakami T, Ono S, Kaneda T, Kuji T, Kawata S, Satta H, Tamura K, Toya Y, Yanagi M, Umemura S, Yasuda G, Yong OL, Lim WWL, Yong KM, Tay KH, Lim EK, Yang WS, Tan SG, Choong HL, Hill A, Blatter D, Kim YO, Kim HG, Song HC, Choi EJ, Kim SY, Min JK, Park WD, Kim HG, Kim YO, Kim BS, Kim SY, Min JK, Park WD, Ibeas J, Fortuno JR, Branera J, Rodriguez- Jornet A, Perendreu J, Marcet M, Vinuesa X, Mateo A, Jimeno V, Fernandez M, Moya C, Rivera J, Falco J, Garcia M, Shibahara H, Shibahara N, Takahashi S, Shibahara H, Shibahara N, Takahashi S, Kanaa M, Wright MJ, Sandoe JAT, Freudiger H, Dupret J, Jacquemoud MC, Rossi L, Kampouris C, Hatzimpaloglou A, Karamouzis M, Pliakos C, Malindretos P, Roudenko I, Grekas D, Costa AC, Santana A, Neves F, Costa AGD, Chaudhry M, Bhola C, Joarder M, Lok C, Coentrao L, Faria B, Frazao J, Pestana M, Sun XF, Yang Y, Wang J, Lin HL, Li JJ, Yao L, Zhao JY, Zhang ZM, Lun LD, Zhang JR, Zhang YM, Li MX, Jiang SM, Wang Y, Zhu HY, Chen XM, Caeiro F, Carvalho D, Cruz J, Ribeiro dos Santos J, Nolasco F, Bartlett R, Pandya B, Viana N, Machado S, Gil C, Lucas C, Mendes A, Barata J, Freitas L, Campos M, Rikker C, Juhasz E, Toth A, Vizi I, Tornoci L, Rosivall L, Tovarosi S, Cho S, Kim S, Lee YJ, Kanai H, Harada K, Nasu S, Shinozaki M, Shibahara N, Shibahara H, Takahashi S, Esenturk M, Zengin M, Ogun F, Akdemir A, Colak C, Pekince G, Gerasimovska V, Oncevski A, Gerasimovska-Kitanovska B, Sikole A, Kiselev N, Chernyshev S, Zlokazov V, Idov E, Bacallao Mendez R, Avila A, Salgado J, Llerena B, Badell A, Aties M, Severn A, Metcalfe W, Traynor J, Boyd J, Kerssens J, Henderson A, Simpson K, Roca-Tey R, Samon S, Ibrik O, Roda E, Gonzalez JC, Viladoms J, Malindretos P, Bamidis P, Liaskos C, Papagiannis A, Vrochides D, Frantzidis C, Sarafidis P, Lasaridis A, Chryssogonidis I, Nikolaidis P, Ibeas J, Vallespin J, Fortuno JR, Merino J, Rodriguez-Jornet A, Branera J, Grau C, Granados I, Mateos A, Jimeno V, Perndreu J, Moya C, Rivera J, Falco J, Gimenez A, Garcia M, Moyses Neto M, Ferreira V, Martinez R, Tercariol CAS, Lima DAFS, Figueiredo JFC, Costa JAC, Alayoud A, Hamzi A, Akhmouch I, Aatif T, Oualim Z, Jankovic A, Ilic M, Damjanovic T, Djuric Z, Popovic J, Adam J, Dimkovic N. Vascular access. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kaneda T, Saga T, Kitayama H, Nakamoto S, Kawasaki H, Takaba K, Imura M, Fujii K, Nishino T, Yukami S. [Application of the lower partial sternotomy approach to patients who may need tracheostomy in the early period after cardiac surgery]. Kyobu Geka 2011; 64:387-389. [PMID: 21591440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Recent good results of cardiovascular surgery have led to expansion of its indication to elderly patients and patients with serious complications. Such patients may have serious respiratory complications after cardiac surgery and need to undergo tracheostomy relatively early in the postoperative period. Although the full sternotomy approach is the standard in almost all cardiac surgeries, superficial and deep sternal infections are rather common after early tracheostomy in full sternotomy patients. The lower partial sternotomy approach is a safer and more useful procedure in patients who will need tracheostomy in the early period after cardiac surgery. We report on 2 patients who were successfully tracheostomized within a week after cardiac surgery, with a review of the literature.
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Affiliation(s)
- T Kaneda
- Department of Cardiovascular Surgery, Kinki University, Osakasayama, Japan
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Shiraishi Y, Yorozu A, Ohashi T, Toya K, Yoshida K, Kaneda T, Saito S, Nishiyama T, Hanada T, Shigematsu N. 721 poster OUTCOME AFTER I-125 BRACHYTHERAPY COMBINED WITH EXTERNAL BEAM RADIOTHERAPY FOR HIGH-RISK PROSTATE CANCER. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70843-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Iida T, Kato M, Komiyama O, Suzuki H, Asano T, Kuroki T, Kaneda T, Svensson P, Kawara M. Comparison of cerebral activity during teeth clenching and fist clenching: a functional magnetic resonance imaging study. Eur J Oral Sci 2010; 118:635-41. [DOI: 10.1111/j.1600-0722.2010.00784.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujita S, Katakami N, Masago K, Yoshioka H, Tomii K, Kaneda T, Hirabayashi M, Morizane T, Mio T. A phase II study of gefitinib versus vinorelbine or gemcitabine in chemotherapy-naïve elderly patients with advanced non-small cell lung cancer based on epidermal growth factor receptor mutation status. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Murakami T, Kaneda T, Ono S, Shibata K, Satta H, Iwamoto T, Sugimoto K, Toya Y, Umemura S. P1.12 COMPARISON OF CLINICAL USEFULNESS BETWEEN STIFFNESS PARAMETER BETA (SPB) AND PULSE WAVE VELOCITY (PWV). Artery Res 2010. [DOI: 10.1016/j.artres.2010.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Yoshida T, Yamaguchi M, Utsunomiya T, Kato M, Arai Y, Kaneda T, Yamamoto H, Kasai K. Low-energy laser irradiation accelerates the velocity of tooth movement via stimulation of the alveolar bone remodeling. Orthod Craniofac Res 2009; 12:289-98. [PMID: 19840281 DOI: 10.1111/j.1601-6343.2009.01464.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Previously, the authors have reported the acceleration of tooth movement and osteoclastogenesis on the pressure site in an experimental tooth movement model by low-energy laser irradiation (LELI), which stimulated the RANK/RANKL system and c-fms/macrophage colony-stimulating factor system. However, the effect of LELI on osteogenesis on the tension site is not known clearly. Moreover, the temporal changes in alveolar bone during tooth movement have not been investigated as yet. Therefore, the present study was designed to examine the effects of LELI on alveolar bone remodeling during experimental tooth movement, and observe the temporal bone mineral density (BMD) using micro-computed tomography (muCT). MATERIALS AND METHODS To induce experimental tooth movement in rats, 10 g force was applied to the upper right first molar with Nickel titanium closed-coil. Next, a gallium-aluminum-arsenide (Ga-Al-As) diode laser was used to irradiate the area around the moved tooth, and BMD and the amount of tooth movement were measured by muCT scanning for 21 days. Histopathological examination was also performed. RESULTS The amount of tooth movement in the LELI group was significantly greater than in the non-irradiation group by the end of the experimental period. Further, compared with the non-irradiation group, the fall of BMD was less in the LELI group. CONCLUSION These findings suggest that LELI accelerates the velocity of tooth movement via stimulation of the alveolar bone remodeling.
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Affiliation(s)
- T Yoshida
- Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
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Higashikata T, Kaneda T, Kato H, Ueda K. Abstract: P1387 INCREASED ATHEROSCLEROTIC PLAQUE BURDEN IN ANGIOGRAPHICALLY NEAR-NORMAL CORONARY SEGMENTS IN PATIENTS WITH SIGNIFICANT CORONARY ARTERY DISEASE. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71395-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ishizaki N, Tanaka S, Ono M, Ohno N, Hasegawa K, Komiya M, Akimoto Y, Kaneda T, Okada H, Utsunomiya T, Yamamoto H, Niwa H, Makiyama Y, Maeda T, Hirayama T, Katayama Y. Brain metastases from oncocytic carcinoma of the submandibular gland. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Oyama N, Kaneda T, Nakai M, Shioyama N, Matsuta Y, Miwa Y, Yokoyama O, Okazawa H, Fujibayashi Y, Yonekura Y. UP-03.55. Urology 2006. [DOI: 10.1016/j.urology.2006.08.914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nakai M, Akino H, Kaneda T, Matsuta Y, Shiyama R, Tanase K, Ito H, Aoki Y, Oyama N, Miwa Y, Yokoyama O. Acetylcholinesterase inhibitor acting on the brain improves detrusor overactivity caused by cerebral infarction in rats. Neuroscience 2006; 142:475-80. [PMID: 16905267 DOI: 10.1016/j.neuroscience.2006.06.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Revised: 05/12/2006] [Accepted: 06/09/2006] [Indexed: 11/23/2022]
Abstract
PURPOSE The functional contribution of the cholinergic pathway in the frontal cortex to micturition was evaluated following cerebral ischemia. Furthermore, it was examined whether reactivation of this regulatory system using acetylcholinesterase inhibitor could improve detrusor overactivity. METHODS Left middle cerebral artery occlusion (MCAO) was performed in female Sprague-Dawley rats. Choline acetyltransferase (ChAT) activities after MCAO were assayed to assess the damage to cholinergic neurons. ChAT activities in the bilateral cortex, hippocampus, and pons were calculated by measuring the conversion of 1-[14C] acetyl-coenzyme A to [14C] acetylcholine. Effects on cystometrography of i.v. or i.c.v. donepezil hydrochloride (DON), a centrally acting acetylcholinesterase inhibitor, were investigated in conscious sham-operated (SO) and cerebral infarcted (CI) rats. To investigate whether DON in the forebrain was affected, we decerebrated rats after CI or SO, and investigated the effects on cystometrography of i.v. DON. RESULTS Bladder capacity was markedly decreased after MCAO, and remained below half of the pre-occlusion capacity. The greatest increase in bladder capacity was attained at 1.2 x 10(-2) nM/kg of DON given i.v., with a change of 52.8% (P < 0.05). In cases of i.c.v. DON, the greatest increase in bladder capacity was at the dose of 6 x 10(-2) pmol with the change of 95.8% (P < 0.01). The activity of ChAT was decreased in the left cortex and hippocampus 24 h after MCAO (P < 0.05). In decerebrated rats, low dose of DON did not change micturition parameters. CONCLUSIONS These results suggest that by upregulation of the forebrain muscarinic inhibitory mechanism, acetylcholinesterase inhibitor improves detrusor overactivity by cerebral infarction.
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Affiliation(s)
- M Nakai
- Department of Urology, University of Fukui, 23-3 Shimoaizuki, Matsuoka, Fukui, Japan.
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Kaneda T, Miyauchi M, Takekoshi T, Kitagawa S, Kitagawa M, Shiba H, Kurihara H, Takata T. Characteristics of periodontal ligament subpopulations obtained by sequential enzymatic digestion of rat molar periodontal ligament. Bone 2006; 38:420-6. [PMID: 16243014 DOI: 10.1016/j.bone.2005.08.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2004] [Revised: 07/13/2005] [Accepted: 08/17/2005] [Indexed: 11/18/2022]
Abstract
Periodontal ligament (PDL) consists of different cell populations in various differentiation stages. In the present study, we isolated cell populations from rat molar PDL by sequential enzymatic digestion and characterized growth potential and mineralization activity of the PDL subpopulations (PDL-SP) to throw light on the mechanism of PDL remodeling and, in its turn, periodontal tissue regeneration. PDL attached to extracted rat molars was digested 2 mg/ml collagenase and 0.25% trypsin at 37 degrees C for 30 min. Then four consecutive digestions were performed for 20 min each in a fresh digestive solution. The solutions were centrifuged to collect released cells and 5 PDL subpopulations (30M-, 50M-, 70M-, 90M-and 110M-PDL-SP) were obtained. Light microscopic observation showed that about a half of PDL in width attached on the root surface of extracted teeth and 30M-PDL-SP was considered to contain cells mainly from middle portion of PDL. Scanning electron microscopic examination indicated that 110M-PDL-SP was enriched by root lining cementoblastic cells. 30M-PDL-SP showed a high level of proliferative activity. Although the growth potential of a subpopulation decreased in PDL-SP toward the root surface, 110M-PDL-SP had a high proliferative activity equivalent to that of 30M-PDL-SP. Analyses of alkaline phosphatase (ALP) and mineralization activities showed that higher activities in PDL-SP toward the surface of roots and that 110M-PDL-SP had the highest activity of ALP and the largest number of mineralization nodules. The present study shows as supposed by previous studies on cell kinetics in PDL that subpopulations with larger growth potential were generally located in the middle portion of PDL and those with higher mineralization activities toward the surface of the roots. It is suggested, however, that a possible pathway of PDL cell turnover may exist within the PDL-SP on the root surface in addition to the generally recognized pathway from the middle area of PDL to root surface.
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Affiliation(s)
- T Kaneda
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Kaneda T, Onoe M, Asai T, Mohri Y, Saga T. Delayed Esophageal Necrosis and Perforation Secondary to Thoracic Aortic Rupture: A Case Report and Review of the Literature. Thorac Cardiovasc Surg 2005; 53:380-2. [PMID: 16311977 DOI: 10.1055/s-2005-865721] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Delayed esophageal necrosis secondary to aortic rupture is extremely rare but potentially fatal. Although diagnostic techniques have improved, survival remains rare. The clinical and imaging features have not been characterized, as no large series have been reported since the advent of computed tomography (CT) and endoscopy. Moreover, as delayed esophageal necrosis secondary to aortic rupture is rarely anticipated, diagnosis is usually delayed. We recently encountered a case of this complication and present this along with a literature review, in order to facilitate early recognition and treatment. In many cases, hemodynamics remain relatively stable despite aortic rupture and the long interval between onset and operation. Dysphagia is therefore an important symptom that may indicate compression of the esophagus and subsequent esophageal necrosis. Preoperative total obstruction of the esophagus on barium swallow, endoscopy, or CT is also an important feature suggesting ischemic change of the esophagus. Endoscopy often reveals an annular ulcer suggestive of an ischemic process leading to necrosis. Death generally occurs from severe mediastinitis occurring after graft repair of the aorta. We recommend performing postoperative endoscopy after aortic surgery when preoperative obstruction of esophagus is found. If endoscopy reveals annular necrosis, surgical treatment involving esophagectomy and omental translocation should be performed expediently before perforation occurs.
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Affiliation(s)
- T Kaneda
- Department of Cardiovascular Surgery, Kishiwada City Hospital, Kishiwada City, Osaka, Japan.
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Takahashi N, Tsunematsu K, Suzuki A, Kaneda T, Narita Y. [Surgical treatment for locally advanced lung cancer; therapeutic response of induction chemotherapy and postoperative chemotherapy]. Kyobu Geka 2005; 58:977-81. [PMID: 16235846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The current chemotherapy has been able to give us many options to treat for lung cancer and recent studies have showed that perioperative chemotherapy may improve survival. In this study, we compared 2 groups with locally advanced lung cancers (stage III, T3N0M0, inclusive of ipsilateral PM2, D1 and D2) ; group A, which had been treated by chemotherapy for downstaging prior to surgery (n = 23), and group B, which had been treated by surgery alone (n = 48). The postoperative 3- and 5-year overall survival rates analyzed using the Kaplan-Meier method were 64.7 and 29.4% for group A, 32.5 and 10% for group B, respectively. And there was a significant difference between 2 groups. Further on patients with pN2, 3-year survival rate was 60% for group A and 36.7% for group B. In view of the progress of chemotherapy, even if the locally advanced lung cancer, which may be suspected of invasion to pulmonary artery, pulmonary vein and central bronchus, is not classified as T4, a patient with it should be performed an induction chemotherapy for downstaging and an operation for complete resection of the tumor and preserving lung function.
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Affiliation(s)
- N Takahashi
- Department of Thoracic Surgery, Hokkaido Tomakomai Hospital, Tomakomai, Japan
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Konno T, Shimizu M, Ino H, Fujino N, Hayashi K, Uchiyama K, Kaneda T, Inoue M, Masuda E, Mabuchi H. Phenotypic differences between electrocardiographic and echocardiographic determination of hypertrophic cardiomyopathy in genetically affected subjects. J Intern Med 2005; 258:216-24. [PMID: 16115294 DOI: 10.1111/j.1365-2796.2005.01539.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES In the molecular era, two types of phenotypic differences are recognized between electrocardiography (ECG) and echocardiography in hypertrophic cardiomyopathy (HCM); ECG abnormalities in carriers without left ventricular hypertrophy (LVH), and normal ECG patterns in carriers with LVH. The goal of this study was to evaluate the diagnostic value of ECG for detecting carriers without LVH, and also to assess normal ECG patterns in carriers with LVH from the genetic standpoint of HCM. SETTING A matched case-control study in a university hospital and general hospitals in Japan. PATIENTS AND DESIGN ECG and echocardiographic findings were analysed in 173 genotyped subjects (107 genetically affected, 66 unaffected) from families with disease-causing mutations in four genes. RESULTS ECG abnormalities were found in 18 (54.5%) of 33 nonhypertrophic carriers, but only nine (13.6%) of 66 noncarriers (P < 0.001). For detecting nonhypertrophic carriers, ST-T abnormalities showed the highest accuracy amongst the three major ECG criteria. In contrast, normal ECG patterns were found in eight (10.8%) of 74 carriers with LVH. The sensitivity of ECG for detecting carriers with LVH in families with the cardiac myosin-binding protein C, cardiac troponin T and cardiac troponin I gene mutations was 83%, 88% and 94% respectively. CONCLUSION These findings suggest that ECG may have favourable diagnostic value even for detecting nonhypertrophic carriers. Furthermore, diagnostic value of ECG may differ according to the genes involved. Our data may contribute to interpretation of phenotypic differences between ECG and echocardiography from the viewpoint of molecular genetics of HCM.
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Affiliation(s)
- T Konno
- Molecular Genetics of Cardiovascular Disorders, Division of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Takara-machi 13-1, Kanazawa, Japan.
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Takahashi N, Tsunematsu K, Suzuki A, Kaneda T. [Lung carcinomas with interstitial pneumonia; detection of lung cancers by CYFRA and selection of surgical procedure]. Kyobu Geka 2005; 58:15-9. [PMID: 15678960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Interstitial pneumonia (IP) may occur with the chest radiographic abnormality at the bilateral, predominantly basal and subpleural area of the lower lobe. And the incidence of lung cancer are markedly increased among patients with IP. From 1993 to 2003, 15 cases (male 14, female 1; average age 65.9-year-old), who were complicated IP, underwent surgical treatment in our hospital. Concerning detective tumor markers of lung cancers with IP, CYFRA showed very high sensitivity (92.3%) for any type of carcinoma. There were no case of perioperative death, however, 3 cases occurred severe deterioration of IP within 1 month and 6 cases died of respiratory failure. The risk factors, which aggravated IP at the postoperative period, were administration of prednisolone or immunosuppressive drugs from pre-operation and resection of the relatively non-fibrotic and non-honeycomb lobe which was affected with cancer. If it is possible to prognosticate the postoperative deterioration of IP, segmentectomy should be considered.
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Affiliation(s)
- Noriyuki Takahashi
- Department of Thoracic Surgery, Hokkaido Tomakomai Hospital, Tomakomai, Japan
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Haraguchi T, Ding DQ, Yamamoto A, Kaneda T, Koujin T, Hiraoka Y. Multiple-color fluorescence imaging of chromosomes and microtubules in living cells. Cell Struct Funct 2004; 24:291-8. [PMID: 15216885 DOI: 10.1247/csf.24.291] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Microscopic observation of fluorescently-stained intracellular molecules within a living cell provides a straightforward approach to understanding their temporal and spatial relationships. However, exposure to the excitation light used to visualize these fluorescently-stained molecules can be toxic to the cells. Here we describe several important considerations in microscope instrumentation and experimental conditions for avoiding the toxicity associated with observing living fluorescently-stained cells. Using a computer-controlled fluorescence microscope system designed for live observation, we recorded time-lapse, multi-color images of chromosomes and microtubules in living human and fission yeast cells. In HeLa cells, a human cell line, microtubules were stained with rhodamine-conjugated tubulin, and chromosomes were stained with a DNA-specific fluorescent dye, Hoechst33342, or with rhodamine-conjugated histone. In fission yeast cells, microtubules were stained with alpha-tubulin fused with the jellyfish green fluorescent protein (GFP), and chromosomes were stained with Hoechst33342.
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Affiliation(s)
- T Haraguchi
- Kansai Advanced Research Center, Communications Research Laboratory, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe 651-2401, Japan
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