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Kashimura S, Ikemura N, Kohsaka S, Katsumata Y, Kimura T, Shinmura D, Fukumoto K, Negishi K, Ueda I, Takatsuki S, Ieda M. Clinical Utility of Baseline Brain Natriuretic Peptide Levels on Health Status Outcomes after Catheter Ablation for Atrial Fibrillation in Individuals without Heart Failure. J Clin Med 2024; 13:407. [PMID: 38256541 PMCID: PMC10816027 DOI: 10.3390/jcm13020407] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Catheter ablation (CA) benefits atrial fibrillation (AF) patients with heart failure (HF). Brain natriuretic peptide (BNP), a marker of left-ventricular pressure load, may serve as a potential surrogate for predicting quality of life (QOL) in a broader range of patients. METHODS Within the multicenter KiCS-AF registry, 491 AF patients underwent CA without clinical HF (e.g., documented history of HF, left ventricular ejection fraction ≤ 40%, or BNP levels ≥ 100 pg/mL). Participants, aged 61 ± 10 years, were categorized by baseline BNP quartiles. Atrial Fibrillation Effect on QualiTy-of-Life (AFEQT) questionnaire assessments were assessed at baseline and 1 year. RESULTS A lower baseline BNP correlated with reduced AFEQT scores. Post CA, all groups showed significant AFEQT score improvements. The lower-BNP group displayed notable enhancements (18.2 ± 1.2, 15.0 ± 1.1, 12.6 ± 1.2, 13.6 ± 1.2, p < 0.005), especially in symptom and treatment concern areas. Even those with normal BNP levels (≤18.4 pg/mL) exhibited significant QOL improvements. Comparing paroxysmal AF (PAF) and non-PAF groups, the PAF group, especially with higher BNP levels, showed greater AFEQT score improvements. CONCLUSIONS This study establishes BNP as a predictive marker for QOL enhancement in non-HF patients undergoing CA for AF. BNP levels represent AF stages, with individuals in earlier stages, especially within normal BNP levels, experiencing greater QOL improvements.
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Affiliation(s)
- Shin Kashimura
- Department of Cardiology, Yokohama Municipal Citizen’s Hospital, 1-1, Mitsuzawa-nishicho, Kanagawa-ku, Yokohama 221-0855, Japan (K.N.)
| | - Nobuhiro Ikemura
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Shun Kohsaka
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Yoshinori Katsumata
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Daisuke Shinmura
- Department of Cardiology, Yokohama Municipal Citizen’s Hospital, 1-1, Mitsuzawa-nishicho, Kanagawa-ku, Yokohama 221-0855, Japan (K.N.)
| | - Kotaro Fukumoto
- Department of Cardiology, Yokohama Municipal Citizen’s Hospital, 1-1, Mitsuzawa-nishicho, Kanagawa-ku, Yokohama 221-0855, Japan (K.N.)
| | - Koji Negishi
- Department of Cardiology, Yokohama Municipal Citizen’s Hospital, 1-1, Mitsuzawa-nishicho, Kanagawa-ku, Yokohama 221-0855, Japan (K.N.)
| | - Ikuko Ueda
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
| | - Masaki Ieda
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan (Y.K.); (T.K.); (I.U.); (M.I.)
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Ishihama Y, Fukumoto K, Watanabe R, Nakatani S, Tsuda A, Otoshi T, Yamada K, Yamada S, Negoro N, Emoto M, Hashimoto M. Retroperitoneal fibrosis requiring prompt nephrostomy in a case with immunoglobulin A vasculitis. Scand J Rheumatol 2022; 51:419-421. [PMID: 35658823 DOI: 10.1080/03009742.2022.2047312] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Y Ishihama
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Fukumoto
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - R Watanabe
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Nakatani
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - A Tsuda
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Otoshi
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Yamada
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Yamada
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - N Negoro
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Emoto
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Hashimoto
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Fukumoto K, Takemoto Y, Norioka N, Takahashi K, Namikawa H, Tochino Y, Shintani A, Yoshiyama M, Shuto T. Effects of smoking cessation on endothelial function assessed by flow-mediated dilation and reactive hyperemia peripheral artery tonometry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3014] [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
Smoking predisposes individuals to endothelial dysfunction. Both flow-mediated dilation (FMD) and reactive hyperemia peripheral artery tonometry (RH-PAT) are used to assess endothelial function. However, there are differences in the physiology of vascular beds being tested and in the response of conduit and resistive vessels to RH. Therefore, whether smoking cessation demonstrates comparable effects on endothelial function evaluated by FMD and by RH-PAT remains unclear.
Purpose
We aimed to evaluate the effects of smoking cessation on endothelial function evaluated simultaneously by FMD and RH-PAT.
Methods
Thirty-eight consecutive current smokers (mean±standard deviation; age, 65±10 years) who visited our smoking cessation outpatient department and succeeded in smoking cessation with varenicline were enrolled. Clinical variables, FMD, and natural logarithmic transformation of the reactive hyperemia index (Ln-RHI) were examined before and 20 weeks after treatment initiation. Fifteen current smokers who failed in smoking cessation were enrolled as age- and sex-matched controls. The Spearman's rank correlation coefficient and intraclass correlation coefficient (ICC) for a two-way mixed effects model were performed to assess the agreement of changes in FMD and Ln-RHI. Multivariate logistic regression analysis was performed to examine the associations between the presence of increase in FMD or Ln-RHI and clinical variables.
Results
FMD significantly improved after smoking cessation (3.42%±1.96% to 4.45%±2.28%; p=0.019), whereas Ln-RHI did not (0.53±0.25 to 0.59±0.21; p=0.223). The Spearman's rank correlation coefficient between changes in FMD and Ln-RHI was −0.013, and the ICC was −0.002 (p=0.506). In the multivariate logistic regression analysis, an increase in FMD or Ln-RHI was predicted based on the baseline FMD (odds ratio = 0.54, p=0.013) or Ln-RHI (odds ratio = 0.36, p=0.012), respectively, after adjusting for age and sex.
Conclusions
There was significant improvement in the endothelial function assessed by FMD, but not by Ln-RHI, after smoking cessation. In addition, there was disagreement between changes in FMD and those in Ln-RHI. Smoking cessation may have varying effects on the endothelial function of the conduit and digital vessels.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grant-in-aid for scientific research from the ministry of education, science and culture of Japan
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Affiliation(s)
- K Fukumoto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - Y Takemoto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - N Norioka
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - K Takahashi
- Osaka City University Graduate School of Medicine, Department of Medical Statistics, Osaka, Japan
| | - H Namikawa
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - Y Tochino
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - A Shintani
- Osaka City University Graduate School of Medicine, Department of Medical Statistics, Osaka, Japan
| | - M Yoshiyama
- Osaka City University Graduate School of Medicine, Department of Cardiovascular Medicine, Osaka, Japan
| | - T Shuto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
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Fukumoto K, Fujita K, Saito H, Sekio Y, Yamazaki M. Effect of temperature history on swelling behavior of V-Fe binary alloy irradiated in a fast reactor Joyo. Nuclear Materials and Energy 2020. [DOI: 10.1016/j.nme.2020.100760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Fukumoto K, Jo T, Yasunaga H, Nakajima J. P1.17-38 Does Use of Epidural Anesthesia Affects Survival of Resectable NSCLC? Analysis from a Japanese Nationwide Database. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1311] [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: 10/25/2022]
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Fukumoto K, Takemoto Y, Yoshikawa J, Norioka N, Iguchi T, Yoshiyama M, Shuto T. P6205Increase in EPA/AA Ratio Predicts Improvement in Endothelial Function in Purified Eicosapentaenoic Acid-Treated Patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Omega-3 polyunsaturated fatty acids (n-3 PUFAs) are well-known for preventing cardiovascular disease. Among n-3 PUFAs, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) play key roles in preventing cardiovascular diseases. However, the effects of n-3 PUFAs have been examined under conditions of simultaneous administration of EPA and DHA in the majority of clinical investigations and the effect of purified EPA is still controversial. EPA has been reported to improve endothelial dysfunction. Although several mechanisms underlying the effects of EPA on endothelial function have been demonstrated such as the modulation of lipid metabolism including increases in high-density lipoprotein (HDL) and/or decreases in triglyceride (TG) levels, decreases in cytokine production, and inhibition of inflammatory processes, the main mechanisms ameliorating endothelial function have not been fully determined.
Purpose
We sought to clarify the main factors associated with EPA administration that led to improved endothelial function.
Methods
Fifty-one consecutive patients with hypertriglyceridemia (mean ± SD age, 60±13 years) with no evidence of coronary artery disease (CAD) were prospectively enrolled and administered purified EPA (1800 mg/day). Forty-eight patients who were not administered EPA were enrolled as age- and sex-matched controls. Clinical variables such as body mass index, HbA1c, fasting glucose level, HDL, low-density lipoprotein, TG, systolic blood pressure, diastolic blood pressure, heart rate, interleukin-6, baseline diameter of the brachial artery, intima-media thickness of the brachial artery, and flow-mediated dilation (FMD) were examined before and after 6 months of treatment. Univariate and multivariate regression analyses were performed to examine the associations between FMD changes and clinical variables.
Results
FMD was significantly improved from 4.16% ± 1.88% to 6.30% ± 2.24% (p<0.0001) in the EPA group. The change in FMD was positively correlated with the change in EPA/arachidonic acid (AA) ratio (r=0.34, p=0.014). The multivariate regression analysis showed that the change in EPA/AA ratio alone was significantly associated with the change in FMD (p=0.010).
Conclusions
EPA treatment improves endothelial dysfunction in patients with hypertriglyceridemia without evidence of CAD. The change in FMD was associated with the change in EPA/AA ratio alone. These finding suggest that a direct effect of EPA on the endothelium may be the predominant factor ameliorating endothelial function.
Acknowledgement/Funding
This study was supported, in part, by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan (15K08649).
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Affiliation(s)
- K Fukumoto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - Y Takemoto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - J Yoshikawa
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
| | - N Norioka
- Osaka City University Graduate School of Medicine, Department of Cardiovascular Medicine, Osaka, Japan
| | - T Iguchi
- Bell land General Hospital, Department of Cardiovascular Medicine, Osaka, Japan
| | - M Yoshiyama
- Osaka City University Graduate School of Medicine, Department of Cardiovascular Medicine, Osaka, Japan
| | - T Shuto
- Osaka City University Graduate School of Medicine, Department of Medical Education and General Practice, Osaka, Japan
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Saito T, Ryota H, Ishida M, Fukumoto K, Matsui H, Taniguchi Y, Yanagimoto H, Tsuta K, Murakawa T. MA24.03 Biologic Profiling of Pre-Metastatic Niche in Completely Resected Pathological Stage I Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.522] [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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8
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Fukumoto K, Onitsuka T, Itoh T, Sakasegawa H, Tanigawa H. Microstructure of fatigue-tested F82H steel under multi-axial loadings. Nuclear Materials and Energy 2018. [DOI: 10.1016/j.nme.2018.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Fukumoto K, Tone K, Onitsuka T, Ishigami T. Effect of Ti addition on microstructural evolution of V–Cr–Ti alloys to balance irradiation hardening with swelling suppression. Nuclear Materials and Energy 2018. [DOI: 10.1016/j.nme.2018.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fukumoto K, Sakai M, Kashimura S, Momoi M, Shinya Y, Ikura H, Kitajima R, Yamakawa H, Shinmura D, Koura T, Negishi K. P932Successful one-point ablation for three circuits of reentrant atrial tachycardia. Europace 2018. [DOI: 10.1093/europace/euy015.533] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Fukumoto
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - M Sakai
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - S Kashimura
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - M Momoi
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - Y Shinya
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - H Ikura
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - R Kitajima
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - H Yamakawa
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - D Shinmura
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - T Koura
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
| | - K Negishi
- Yokohama Municipal Citizen's Hospital, Cardiology, Yokohama, Japan
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Hayakawa N, Kikuchi E, Mikami S, Fukumoto K, Oya M. The Role of PD-1 Positivity in the Tumour Nest on Clinical Outcome in Upper Tract Urothelial Carcinoma Patients Treated with Radical Nephroureterectomy. Clin Oncol (R Coll Radiol) 2017; 30:e1-e8. [PMID: 29153625 DOI: 10.1016/j.clon.2017.10.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 09/26/2017] [Accepted: 10/12/2017] [Indexed: 11/15/2022]
Abstract
AIMS The role of PD-1 (programmed cell death 1) expression on the clinical outcome of upper tract urothelial carcinoma has not yet been elucidated in detail. MATERIALS AND METHODS PD-1 expression was immunohistochemically examined in 181 upper tract urothelial carcinoma patients who underwent radical nephroureterectomy. A part of PD-1 protein expression in the tumour periphery and tumour nest was evaluated separately. The PD-1-positive cells were counted in the area showing the highest density of PD-1 expression at a magnification of 400×. RESULTS PD-1 staining in the tumour nest was low in 137 (75.7%) and high in 44 (24.3%) patients. PD-1 staining in the tumour periphery was low in 78 (43.1%) and high in 103 (56.9%) patients. The 5 year progression-free survival rates in patients with the high PD-1 expression in the tumour nest and in the tumour periphery were 54.6% and 67.7%, respectively, which were significantly lower than those in their counterparts (79.4%, P < 0.001; 80.0%, P = 0.04). The 5 year cancer-specific survival rates in patients with the high PD-1 expression in the tumour nest and the tumour periphery were 69.1% and 75.7%, respectively, which were significantly lower than those in their counterparts (84.7%, P = 0.007; 87.8%, P = 0.01). A multivariate Cox regression analysis identified the high PD-1 expression in the tumour nest (hazard ratio 3.07, P < 0.001; hazard ratio 2.44, P = 0.011) and positive lymphovascular invasion (hazard ratio 4.86, P < 0.001; hazard ratio 4.03, P < 0.001) as independent predictors of disease progression and of cancer death, respectively. CONCLUSIONS PD-1 positivity in the tumour nest could be a strong predictor for a worse clinical outcome and may be a useful indicator for selecting appropriate candidates for adjuvant therapy such as chemotherapy in upper tract urothelial carcinoma patients treated with radical nephroureterectomy.
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Affiliation(s)
- N Hayakawa
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - E Kikuchi
- Department of Urology, Keio University School of Medicine, Tokyo, Japan.
| | - S Mikami
- Department of Diagnostic Pathology, Keio University School of Medicine, Tokyo, Japan
| | - K Fukumoto
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - M Oya
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
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Karasaki T, Nagayama K, Fukumoto K, Kitano K, Nitadori J, Sato M, Anraku M, Hosoi A, Matsushita H, Kakimi K, Nakajima J. P1.07-017 Assessment of Cancer Immunity Status in Each Patient Using Immunogram. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.935] [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: 10/18/2022]
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Saito T, Tsuta K, Kinoshita Y, Ryota H, Miyata N, Takeyasu Y, Fukumoto K, Matsui H, Taniguchi Y, Yanagimoto H, Yokoi T, Kurata T, Murakawa T. P-148COMPARISON STUDY OF PD-L1 IMMUNOHISTOCHEMISTRY ASSAYS WITH 22C3 AND 28-8 FOR NON-SMALL CELL LUNG CANCERS: HOW CAN THE RESULTS BE TRANSLATED BETWEEN THE TWO? Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.148] [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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Saito T, Fukumoto K, Matsui H, Taniguchi Y, Murakawa T. P-226IMPACT OF ORIGINAL, MODIFIED AND ADJUSTED GLASGOW PROGNOSTIC SCORE ON SURVIVAL OF PATIENTS WITH COMPLETELY RESECTED NON-SMALL CELL LUNG CANCER. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.226] [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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15
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Nishiyama N, Takatsuki S, Fujisawa T, Nakajima K, Kashimura S, Kunitomi A, Katsumata Y, Nishiyama T, Kimura T, Fukumoto K, Aizawa Y, Fukuda K. P1400Inadvertently achieved bidirectional conduction block of the lateral mitral isthmus by cryoballoon applications applied at the left atrial appendage and left superior pulmonary vein - CASE REPORT. Europace 2017. [DOI: 10.1093/ehjci/eux158.028] [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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Sakata-Yanagimoto M, Fujisawa M, Nishizawa S, Komori D, Gershon P, Kiryu M, Swarna T, Fukumoto K, Enami T, Muratani M, Yoshida K, Ogawa S, Matsue K, Nakamura N, Takeuchi K, Izutsu K, Teshima T, Fujimoto K, Miyoshi H, Gaulard P, Ohshima K, Chiba S. ACTIVATION OF RHOA-VAV1 SIGNALING IN ANGIOIMMUNOBLASTIC T-CELL LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - M. Fujisawa
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - S. Nishizawa
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - D. Komori
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - P. Gershon
- Department of Molecular Biology& Biochemistry; UC-Irvine; California USA
| | - M. Kiryu
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - T. Swarna
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - K. Fukumoto
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - T. Enami
- Department of Hematology; University of Tsukuba; Ibaraki Japan
| | - M. Muratani
- Department of Genome Biology; University of Tsukuba; Ibaraki Japan
| | - K. Yoshida
- Department of Pathology and Tumor Biology; Kyoto University; Kyoto Japan
| | - S. Ogawa
- Department of Pathology and Tumor Biology; Kyoto University; Kyoto Japan
| | - K. Matsue
- Division of Hematology/Oncology, Department of Internal Medicine; Kameda Medical Center; Chiba Japan
| | - N. Nakamura
- Department of Pathology; Tokai University School of Medicine; Kanagawa Japan
| | - K. Takeuchi
- Pathology Project for Molecular Targets, The Cancer Institute; Japanese Foundation for Cancer Research; Tokyo Japan
| | - K. Izutsu
- Department of Hematology; Toranomon Hospital; Tokyo Japan
| | - T. Teshima
- Department of Hematology; Hokkaido University Graduate School of Medicine; Sapporo Japan
| | - K. Fujimoto
- Department of Hematology; Hokkaido University Graduate School of Medicine; Sapporo Japan
| | - H. Miyoshi
- Department of Pathology; University of Kurume; Fukuoka Japan
| | - P. Gaulard
- Département de Pathologie & Inserm U955; Hôpital Henri Mondor; Créteil France
| | - K. Ohshima
- Department of Pathology; University of Kurume; Fukuoka Japan
| | - S. Chiba
- Department of Hematology; University of Tsukuba; Ibaraki Japan
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Ichikawa W, Uehara K, Minamimura K, Tanaka C, Takii Y, Miyauchi H, Sadahiro S, Shinozaki K, Fukumoto K, Otsuji T, Kambara T, Morita S, Ando Y, Arai M, Sugihara M, Sugiyama T, Ohashi Y, Sakata Y. A nomogram for predicting overall survival (OS) in Japanese patients (pts) with advanced colorectal cancer (aCRC) treated with irinotecan (IRI)-based regimens. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.127] [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: 11/13/2022] Open
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Ozeki N, Okasaka T, Kawaguchi K, Fukui T, Fukumoto K, Nakamura S, Hakiri S, Yokoi K. O-024SURVIVAL ANALYSIS USING PHYSIQUE-ADJUSTED SIZE OF NON-SMALL CELL LUNG CANCER. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.24] [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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Ozeki N, Okasaka T, Kawaguchi K, Fukui T, Fukumoto K, Nakamura S, Hakiri S, Yokoi K. P-189DIFFUSING CAPACITY OF THE LUNG FOR CARBON MONOXIDE IS ASSOCIATED WITH TUMOUR DIFFERENTIATION, SCAR GRADE, NUCLEAR ATYPIA, AND MITOTIC INDEX OF LUNG ADENOCARCINOMA. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.187] [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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Kimura T, Aizawa Y, Kurata N, Nakajima K, Kashimura S, Kunitomi A, Nishiyama T, Katsumata Y, Nishiyama N, Fukumoto K, Tanimoto Y, Fukuda K, Takatsuki S. Assessment of atrial fibrillation ablation outcomes with clinic ECG, monthly 24-h Holter ECG, and twice-daily telemonitoring ECG. Heart Vessels 2016; 32:317-325. [PMID: 27385021 DOI: 10.1007/s00380-016-0866-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 07/01/2016] [Indexed: 01/12/2023]
Abstract
Differences in the methodologies for evaluating atrial fibrillation (AF) ablation outcomes should be evaluated. In the present study, we compared the AF ablation outcomes among periodic clinic electrocardiography (ECG), 24-h Holter ECG, and telemonitoring ECG to evaluate the differences among these methods. In addition, we evaluated the AF-free survival rate for each method with different durations of the blanking period. A total of 30 AF patients were followed up for 6 months after initial catheter ablation, with clinic ECG on every clinic visit, monthly 24-h Holter ECG, and telemonitoring ECG twice daily and upon symptoms. AF relapse was defined as AF or atrial tachycardia detected with any of the methods. Two patients dropped out of the study, and 28 patients were followed up for 8.8 ± 2.7 months. Patients underwent 3.6 ± 0.8 clinic ECG, 5.1 ± 0.8 Holter ECG, and 273 ± 68 telemonitoring ECG examinations. During the first, second, third, fourth, fifth, and sixth months of follow-up, Holter ECG detected relapses in 11.1, 8.3, 11.5, 15.4, 4.2, and 4.8 % of patients and telemonitoring ECG detected relapses in 32.1, 25.0, 25.0, 17.9, 28.6, and 17.9 % of patients, respectively. When no duration was set for the blanking period, the AF-free survival rate was significantly lower with telemonitoring ECG (46.4 %) than with Holter ECG (78.6 %, P = 0.013) or clinic ECG (85.7 %, P = 0.002). In addition, when the duration of the blanking period was set to 3 months, the AF-free survival rate was significantly lower with telemonitoring ECG than with clinic ECG (92.9 vs. 71.4 %, P = 0.041). The AF ablation outcomes with twice-daily telemonitoring ECG might differ from those with clinic ECG when the duration of the blanking period is 0-3 months. A follow-up based solely on clinic ECG might underestimate AF recurrence.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naomi Kurata
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuaki Nakajima
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shin Kashimura
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Akira Kunitomi
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takahiko Nishiyama
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoshinori Katsumata
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Nobuhiro Nishiyama
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kotaro Fukumoto
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoko Tanimoto
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
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Fukumoto K, Habibi M, Ipek EG, Zahid S, Khurram IM, Zimmerman SL, Zipunnikov V, Spragg D, Ashikaga H, Trayanova N, Tomaselli GF, Rickard J, Marine JE, Berger RD, Calkins H, Nazarian S. Association of Left Atrial Local Conduction Velocity With Late Gadolinium Enhancement on Cardiac Magnetic Resonance in Patients With Atrial Fibrillation. Circ Arrhythm Electrophysiol 2016; 9:e002897. [PMID: 26917814 DOI: 10.1161/circep.115.002897] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [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: 12/22/2022]
Abstract
BACKGROUND Prior studies have demonstrated regional left atrial late gadolinium enhancement (LGE) heterogeneity on magnetic resonance imaging. Heterogeneity in regional conduction velocities is a critical substrate for functional reentry. We sought to examine the association between left atrial conduction velocity and LGE in patients with atrial fibrillation. METHODS AND RESULTS LGE imaging and left atrial activation mapping were performed during sinus rhythm in 22 patients before pulmonary vein isolation. The locations of 1468 electroanatomic map points were registered to the corresponding anatomic sites on 469 axial LGE image planes. The local conduction velocity at each point was calculated using previously established methods. The myocardial wall thickness and image intensity ratio defined as left atrial myocardial LGE signal intensity divided by the mean left atrial blood pool intensity was calculated for each mapping site. The local conduction velocity and image intensity ratio in the left atrium (mean ± SD) were 0.98 ± 0.46 and 0.95 ± 0.26 m/s, respectively. In multivariable regression analysis, clustered by patient, and adjusting for left atrial wall thickness, conduction velocity was associated with the local image intensity ratio (0.20 m/s decrease in conduction velocity per increase in unit image intensity ratio, P<0.001). CONCLUSIONS In this clinical in vivo study, we demonstrate that left atrial myocardium with increased gadolinium uptake has lower local conduction velocity. Identification of such regions may facilitate the targeting of the substrate for reentrant arrhythmias.
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Affiliation(s)
- Kotaro Fukumoto
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Mohammadali Habibi
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Esra Gucuk Ipek
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Sohail Zahid
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Irfan M Khurram
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Stefan L Zimmerman
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Vadim Zipunnikov
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - David Spragg
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Hiroshi Ashikaga
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Natalia Trayanova
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Gordon F Tomaselli
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - John Rickard
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Joseph E Marine
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Ronald D Berger
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Hugh Calkins
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD
| | - Saman Nazarian
- From the Section of Cardiac Electrophsyiology (K.F., M.H., E.G.I., I.M.K., D.S., H.A., N.T., G.F.T., J.R., J.E.M., R.D.B., H.C., S.N.), Department of Biomedical Engineering (S.Z., H.A., N.T., R.D.B.), Department of Radiology (S.L.Z.), Department of Biostatistics (V.Z.), and Department of Epidemiology (S.N.), Johns Hopkins University, Baltimore, MD.
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Nishiyama N, Takatsuki S, Nakajima K, Kashimura S, Kunitomi A, Katsumata Y, Nishiyama T, Kimura T, Fukumoto K, Aizawa Y, Hagiwara Y, Fukuda K. 216-26: Extensive Mapping of the Optimal Ablation Sites to Isolate the Superior Vena Cava by Using Decremental Conduction Property of Venoatrial Junction in Patients with Atrial Fibrillation. Europace 2016. [DOI: 10.1093/europace/18.suppl_1.i147c] [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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Fukumoto K, Aizawa Y, Nakajima K, Kashimura S, Kunitomi A, Katsumata Y, Nishiyama T, Kimura T, Nishiyama N, Fukuda K, Takatsuki S. 96-76: The Efficacy of Disopyramide for Prevention of Ventricular Fibrillation in a Patient with Brugada Syndrome. Europace 2016. [DOI: 10.1093/europace/18.suppl_1.i80c] [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: 11/14/2022] Open
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Takatsuki S, Kimura T, Nakajima K, Kashimura S, Kunitomi A, Nishiyama N, Fukumoto K, Aizawa Y, Fukuda K. 216-05: Importance of impedance drop during creating linear lesions encircling all pulmonary veins and the left atrial posterior wall by radiofrequency catheter ablation. Europace 2016. [DOI: 10.1093/europace/18.suppl_1.i142b] [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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Tanaka K, Nakamura M, Fukumoto K, Kosuga T, Yanagawa M, Miyai A, Tachiiri S, Otsu S, Kuwabara K. EP-1732: Quantitative estimation of gamma passing rates from characteristics of respiratory motion. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32983-8] [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: 11/28/2022]
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Kimura T, Igarashi A, Ikeda S, Nakajima K, Kashimura S, Kunitomi A, Katsumata Y, Nishiyama T, Nishiyama N, Fukumoto K, Tanimoto Y, Aizawa Y, Fukuda K, Takatsuki S. A cost-utility analysis for catheter ablation of atrial fibrillation in combination with warfarin and dabigatran based on the CHADS 2 score in Japan. J Cardiol 2016; 69:89-97. [PMID: 26947099 DOI: 10.1016/j.jjcc.2016.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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] [Received: 06/30/2015] [Revised: 01/03/2016] [Accepted: 01/15/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND We aimed to clarify the cost-effectiveness of an expensive combination therapy for atrial fibrillation (AF) using both catheter ablation and dabigatran compared with warfarin at each CHADS2 score for patients in Japan. METHODS A Markov model was constructed to analyze costs and quality-adjusted life years associated with AF therapeutic options with a time horizon of 10 years. The target population was 60-year-old patients with paroxysmal AF. The indication for anticoagulation was determined according to the Japanese guideline. Anticoagulation-related data were derived from the RE-LY study and the AF recurrence rate was set at 2.7% per month during the first 12 months and at 0.40% per month afterwards. Stroke risk was determined according to AF recurrence, anticoagulation, and CHADS2 score. The risks for stroke recurrence and stroke death were also considered. Costs were calculated from the healthcare payer's perspective, and only direct medical costs were included. RESULTS Warfarin was the most preferred option for patients with a CHADS2 score of 0 from a health economics aspect. Ablation under warfarin was preferred for a CHADS2 score of 1-3, while ablation under dabigatran was preferred for a CHADS2 score ≥4. The quality of life score for AF had the largest impact on the incremental cost-effectiveness ratios in the analysis between the anticoagulation arm and the anticoagulation+ablation arm for a CHADS2 score of 2. Within the range of the Japanese willingness-to-pay threshold (¥5,000,000), the ablation+warfarin arm became the best option with its probability of 81.7% for a CHADS2 score of 2; the dabigatran+ablation arm was the most preferred option with its probability of 56.1% for a CHADS2 score of 4. CONCLUSIONS Ablation under dabigatran therapy is an expensive therapeutic option, but it might benefit patients with a low quality of life and a high CHADS2 score.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
| | - Ataru Igarashi
- Department of Drug Policy and Management, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shunya Ikeda
- School of Pharmacy, International University of Health and Welfare, Ohtawara, Japan
| | - Kazuaki Nakajima
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Shin Kashimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Akira Kunitomi
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | | | - Takahiko Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Nobuhiro Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Kotaro Fukumoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Yoko Tanimoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Khurram IM, Habibi M, Gucuk Ipek E, Chrispin J, Yang E, Fukumoto K, Dewire J, Spragg DD, Marine JE, Berger RD, Ashikaga H, Rickard J, Zhang Y, Zipunnikov V, Zimmerman SL, Calkins H, Nazarian S. Left Atrial LGE and Arrhythmia Recurrence Following Pulmonary Vein Isolation for Paroxysmal and Persistent AF. JACC Cardiovasc Imaging 2016; 9:142-8. [PMID: 26777218 PMCID: PMC4744105 DOI: 10.1016/j.jcmg.2015.10.015] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 09/16/2015] [Accepted: 10/08/2015] [Indexed: 01/22/2023]
Abstract
OBJECTIVES The aims of this study were to: 1) use a novel method of late gadolinium enhancement (LGE) quantification that uses normalized intensity measures to confirm the association between LGE extent and atrial fibrillation (AF) recurrence following ablation; and 2) examine the presence of interaction and effect modification between LGE and AF persistence. BACKGROUND Recurrent AF after catheter ablation has been reported to associate with the baseline extent of left atrial LGE on cardiac magnetic resonance. Traditional methods for measurement of intensity lack an objective threshold for quantification and interpatient comparisons of LGE. METHODS The cohort included 165 participants (mean age 60.0 ± 10.2 years, 77% men, 57% with persistent AF) who underwent initial AF ablation. The association of baseline LGE extent with AF recurrence was examined using multivariable Cox proportional hazards models. Multiplicative and additive interactions between AF type and LGE extent were examined. RESULTS During 10.2 ± 5.7 months of follow-up, 63 patients (38.2%) experienced AF recurrence. Baseline LGE extent was independently associated with AF recurrence after adjusting for confounders (hazard ratio: 1.5 per 10% increased LGE; p < 0.001). The hazard ratio for AF recurrence progressively increased as a function of LGE. The magnitude of association between LGE >35% and AF recurrence was greater among patients with persistent AF (hazard ratio: 6.5 [p = 0.001] vs. 3.6 [p = 0.001]); however, there was no evidence for statistical interaction. CONCLUSIONS Regardless of AF persistence at baseline, participants with LGE ≤35% have favorable outcomes, whereas those with LGE >35% have a higher rate of AF recurrence in the first year after ablation. These findings suggest a role for: 1) patient selection for AF ablation using LGE extent; and 2) substrate modification in addition to pulmonary vein isolation in patients with LGE extent exceeding 35% of left atrial myocardium.
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Affiliation(s)
- Irfan M Khurram
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | | | - Esra Gucuk Ipek
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Jonathan Chrispin
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Eunice Yang
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Kotaro Fukumoto
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Jane Dewire
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - David D Spragg
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Joseph E Marine
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Ronald D Berger
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Hiroshi Ashikaga
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Jack Rickard
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Yiyi Zhang
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland
| | - Vadim Zipunnikov
- Department of Biostatistics, Johns Hopkins University, Baltimore, Maryland
| | | | - Hugh Calkins
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland
| | - Saman Nazarian
- Division of Cardiology, Johns Hopkins University, Baltimore, Maryland; Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland.
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Ichikawa W, Uehara K, Minamimura K, Tanaka C, Sadahiro S, Shinozaki K, Fukumoto K, Takii Y, Otsuji T, Kambara T, Gamoh M, Morita S, Ando Y, Arai M, Sugihara M, Sugiyama T, Ohashi Y, Sakata Y. 2100 Impact of UGT1A1 genotype and irinotecan exposure on outcomes in Japanese patients with advanced colorectal cancer treated by irinotecan-based regimens. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31022-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: 10/22/2022]
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Inoue YY, Alissa A, Khurram IM, Fukumoto K, Habibi M, Venkatesh BA, Zimmerman SL, Nazarian S, Berger RD, Calkins H, Lima JA, Ashikaga H. Quantitative tissue-tracking cardiac magnetic resonance (CMR) of left atrial deformation and the risk of stroke in patients with atrial fibrillation. J Am Heart Assoc 2015; 4:jah3941. [PMID: 25917441 PMCID: PMC4579945 DOI: 10.1161/jaha.115.001844] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Recent evidence suggests that left atrial (LA) dysfunction may be mechanistically contributing to cerebrovascular events in patients with atrial fibrillation (AF). We investigated the association between regional LA function and a prior history of stroke during sinus rhythm in patients referred for catheter ablation of AF. METHODS AND RESULTS A total of 169 patients (59 ± 10 years, 74% male, 29% persistent AF) with a history of AF in sinus rhythm at the time of pre-ablation cardiac magnetic resonance (CMR) were analyzed. The LA volume, emptying fraction, strain (S), and strain rate (SR) were assessed by tissue-tracking cardiac magnetic resonance. The patients with a history of stroke or transient ischemic attack (n=18) had greater LA volumes (Vmax and Vmin; P=0.02 and P<0.001, respectively), lower LA total emptying fraction (P<0.001), lower LA maximum and pre-atrial contraction strains (Smax and SpreA; P<0.001 and P=0.01, respectively), and lower absolute values of LA SR during left ventricular (LV) systole and early diastole (SRs and SRe; P=0.005 and 0.03, respectively) than those without stroke/transient ischemic attack (n=151). Multivariable analysis demonstrated that the LA reservoir function, including total emptying fraction, Smax, and SRs, was associated with stroke/transient ischemic attack (odds ratio 0.94, 0.91, and 0.17; P=0.03, 0.02, and 0.04, respectively) after adjusting for the CHA2DS2-VASc score and LA Vmin. CONCLUSIONS Depressed LA reservoir function assessed by tissue-tracking cardiac magnetic resonance is significantly associated with a prior history of stroke/transient ischemic attack in patients with AF. Our findings suggest that assessment of LA reservoir function can improve the risk stratification of cerebrovascular events in AF patients.
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Affiliation(s)
- Yuko Y. Inoue
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Abdullah Alissa
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Irfan M. Khurram
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Kotaro Fukumoto
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Mohammadali Habibi
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Bharath A. Venkatesh
- The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD (B.A.V., S.L.Z.)
| | - Stefan L. Zimmerman
- The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD (B.A.V., S.L.Z.)
| | - Saman Nazarian
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
- Department of Epidemiology, Johns Hopkins University School of Public Health, Baltimore, MD (S.N.)
| | - Ronald D. Berger
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD (R.D.B., H.A.)
| | - Hugh Calkins
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Joao A. Lima
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
| | - Hiroshi Ashikaga
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (Y.Y.I., A.A., I.M.K., K.F., M.H., S.N., R.D.B., H.C., J.A.L., H.A.)
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD (R.D.B., H.A.)
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Iijima M, Yoshimizu T, Shimazaki T, Tokugawa K, Fukumoto K, Kurosu S, Kuwada T, Sekiguchi Y, Chaki S. Antidepressant and anxiolytic profiles of newly synthesized arginine vasopressin V1B receptor antagonists: TASP0233278 and TASP0390325. Br J Pharmacol 2015; 171:3511-25. [PMID: 24654684 DOI: 10.1111/bph.12699] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 02/12/2014] [Accepted: 03/17/2014] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND PURPOSE Vasopressin V1B receptor antagonists may be effective for the treatment of depression and anxiety and the objective of this study was to characterize the pharmacological profiles of two newly synthesized arginine vasopressin receptor 1B (V1B receptor) antagonists, TASP0233278 and TASP0390325. EXPERIMENTAL APPROACH We investigated the in vitro profiles of TASP0233278 and TASP0390325. In addition, the effect of TASP0390325 on the increase in plasma adrenocorticotropic hormone (ACTH) levels induced by corticotropin-releasing factor (CRF)/desmopressin (dDAVP) was investigated. We also investigated the antidepressant and anxiolytic profiles of TASP0233278 and TASP0390325 in animal models. KEY RESULTS Both TASP0233278 and TASP0390325 showed a high affinity and potent antagonist activity for V1B receptors. Oral administration of TASP0390325 antagonized the increase in plasma ACTH levels induced by CRF/dDAVP in rats, indicating that TASP0390325 blocks the anterior pituitary V1B receptor in vivo. Oral administration of TASP0233278 or TASP0390325 also exerted antidepressant effects in two models of depression (a forced swimming test and an olfactory bulbectomy model). Moreover, TASP0233278 improved depressive-like behaviour induced by repeated treatment with corticosterone, a model that has been shown to be resistant to treatment with currently prescribed antidepressants. In addition to depression models, TASP0233278 or TASP0390325 exerted anxiolytic effects in several anxiety models (social interaction, elevated plus-maze, stress-induced hyperthermia, separation-induced ultrasonic vocalization and sodium lactate-induced panic-like responses in panic-prone rats). CONCLUSION TASP0233278 and TASP0390325 are potent and orally active V1B receptor antagonists with antidepressant and anxiolytic activities in rodents.
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Affiliation(s)
- M Iijima
- Discovery Pharmacology I, Molecular Function and Pharmacology Laboratories, Taisho Pharmaceutical Co., Ltd., Saitama, Saitama, Japan
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Habibi M, Lima JAC, Khurram IM, Zimmerman SL, Zipunnikov V, Fukumoto K, Spragg D, Ashikaga H, Rickard J, Marine JE, Calkins H, Nazarian S. Association of left atrial function and left atrial enhancement in patients with atrial fibrillation: cardiac magnetic resonance study. Circ Cardiovasc Imaging 2015; 8:e002769. [PMID: 25652181 DOI: 10.1161/circimaging.114.002769] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [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: 11/16/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) is associated with left atrial (LA) structural and functional changes. Cardiac magnetic resonance late gadolinium enhancement (LGE) and feature-tracking are capable of noninvasive quantification of LA fibrosis and myocardial motion, respectively. We sought to examine the association of phasic LA function with LA enhancement in patients with AF. METHODS AND RESULTS LA structure and function was measured in 90 patients with AF (age 61±10 years; 76% men) referred for ablation and 14 healthy volunteers. Peak global longitudinal LA strain, LA systolic strain rate, and early and late diastolic strain rates were measured using cine-cardiac magnetic resonance images acquired during sinus rhythm. The degree of LGE was quantified. Compared with patients with paroxysmal AF (60% of cohort), those with persistent AF had larger maximum LA volume index (56±17 versus 49±13 mL/m(2); P=0.036), and increased LGE (27.1±11.7% versus 36.8±14.8%; P<0.001). Aside from LA active emptying fraction, all LA parameters (passive emptying fraction, peak global longitudinal LA strain, systolic strain rate, early diastolic strain rate, and late diastolic strain rate) were lower in patients with persistent AF (P<0.05 for all). Healthy volunteers had less LGE and higher LA functional parameters compared with patients with AF (P<0.05 for all). In multivariable analysis, increased LGE was associated with lower LA passive emptying fraction, peak global longitudinal LA strain, systolic strain rate, early diastolic strain rate, and late diastolic strain rate (P<0.05 for all). CONCLUSIONS Increased LA enhancement is associated with decreased LA reservoir, conduit, and booster pump functions. Phasic measurement of LA function using feature-tracking cardiac magnetic resonance may add important information about the physiological importance of LA fibrosis.
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Affiliation(s)
- Mohammadali Habibi
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
| | - Joao A C Lima
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Irfan M Khurram
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Stefan L Zimmerman
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Vadim Zipunnikov
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Kotaro Fukumoto
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - David Spragg
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Hiroshi Ashikaga
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - John Rickard
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Joseph E Marine
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Hugh Calkins
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Saman Nazarian
- From the Department of Cardiology (M.H., J.A.C.L., I.M.K., K.F., D.S., H.A., J.R., J.E.M., H.C., S.N.), Department of Radiology (S.L.Z.), The Johns Hopkins University School of Medicine, Baltimore, MD; and Department of Biostatistics (V.Z.), Department of Epidemiology (S.N.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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Yasuda R, Murata M, Roberts R, Tokuda H, Minakata Y, Suzuki K, Tsuruta H, Kimura T, Nishiyama N, Fukumoto K, Aizawa Y, Tanimoto K, Takatsuki S, Abe T, Fukuda K. Left atrial strain is a powerful predictor of atrial fibrillation recurrence after catheter ablation: study of a heterogeneous population with sinus rhythm or atrial fibrillation. Eur Heart J Cardiovasc Imaging 2015; 16:1008-14. [PMID: 25750193 DOI: 10.1093/ehjci/jev028] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [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] [Received: 10/08/2014] [Accepted: 02/03/2015] [Indexed: 12/12/2022] Open
Abstract
AIMS Accumulating data show the efficacy of catheter ablation (CA) for atrial fibrillation (AF); however, postoperative recurrence is not uncommon. The aim of this study was to identify predictors of AF recurrence in patients undergoing CA. METHODS AND RESULTS We studied 100 patients with symptomatic paroxysmal (68) or persistent (32) AF who underwent CA preceded by transthoracic echocardiographic examination. Of these, 50 had sinus rhythm during echocardiography (Group NSR) and 50 had AF rhythm (Group AF). The left atrial (LA) strain was measured by two-dimensional speckle tracking echocardiography. Echocardiographic parameters were compared between the patients with AF recurrence and no recurrence. During 12 months of follow-up, 26 of 100 patients (11 in Group NSR and 15 in Group AF) had AF recurrence; these patients had significantly longer AF duration, a lower LA global strain (LA-GS), lower LA lateral total strain (LA-LS), and larger maximum LA volume index (LAVImax) than those who maintained sinus rhythm. Multivariate logistic regression identified basal LA-LS and LAVImax as independent predictors of AF recurrence. Furthermore, receiver operating characteristic analyses revealed that basal LA-LS was the most useful parameter for predicting AF recurrence [area under the curve (AUC): 0.84 vs. 0.74 in LAVImax]. Subanalyses showed that LAVImax was another independent predictor of AF recurrence in Group AF, but not in Group NSR, while basal LA-LS was a significant predictor in both groups. CONCLUSION LA myocardial function assessed by basal LA-LS could predict AF recurrence after CA. Notably, such an assessment could be applicable even during AF rhythm, suggesting its convenience in the clinical setting without defibrillation before analysis.
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Affiliation(s)
- Risako Yasuda
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Mitsushige Murata
- Department of Laboratory Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Rachel Roberts
- Center for Clinical Research, School of Medicine, Keio University, Tokyo, Japan
| | - Hanako Tokuda
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Yugo Minakata
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Keiko Suzuki
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Hikaru Tsuruta
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Takehiro Kimura
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Nobuhiro Nishiyama
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Kotaro Fukumoto
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Kojiro Tanimoto
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Seiji Takatsuki
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
| | - Takayuki Abe
- Center for Clinical Research, School of Medicine, Keio University, Tokyo, Japan
| | - Keiichi Fukuda
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan
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Nishiyama T, Katsumata Y, Inagawa K, Kimura T, Nishiyama N, Fukumoto K, Tanimoto Y, Aizawa Y, Tanimoto K, Fukuda K, Takatsuki S. Visualization of the left atrial appendage by phased-array intracardiac echocardiography from the pulmonary artery in patients with atrial fibrillation. Europace 2015; 17:546-51. [DOI: 10.1093/europace/euu383] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 12/07/2014] [Indexed: 12/21/2022] Open
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Kimura T, Takatsuki S, Inagawa K, Katsumata Y, Nishiyama T, Nishiyama N, Fukumoto K, Aizawa Y, Tanimoto Y, Tanimoto K, Fukuda K. Serum inflammation markers predicting successful initial catheter ablation for atrial fibrillation. Heart Lung Circ 2014; 23:636-43. [PMID: 24613042 DOI: 10.1016/j.hlc.2014.02.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/26/2013] [Accepted: 02/06/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND We investigated various serum inflammatory markers to predict ablation responders who have no atrial fibrillation (AF) relapse after the initial ablation. METHODS Forty-four consecutive AF patients (age: 59 ± 8 years, paroxysmal: 31, CHADS₂: 1.1 ± 1.1) who underwent an initial pulmonary vein isolation were investigated. Various serum inflammatory markers, such as adiponectin, ANP, BNP, 1CTP, F1+2, hs-CRP, IL-6, intact P1NP, MDA-LDL, MMP-2, TGF-β, TIMP-2, and TNF-α, were evaluated prior to ablation. AF relapse was defined as AF documented in telemonitoring electrocardiograms twice a day during 9.7 ± 2.4 months of follow-up with three months of a blanking-period. RESULTS A total of 29 patients (paroxysmal: 21) maintained sinus rhythm after the initial catheter ablation. These ablation responders had significantly lower MMP-2 (Sinus vs. Relapsed: 748 ± 132.7 vs. 841.2 ± 152.4 ng/mL, P=0.042) and TNF-α (1.1 ± 0.4 vs. 1.8 ± 1.7 pg/mL, P=0.046) levels prior to ablation. A BNP-adjusted Cox multivariate regression analysis revealed that the independent predictive factor for AF recurrence was high MMP-2 levels (>766 ng/mL) accompanied by high TNF-α levels (>1.2 pg/mL). CONCLUSIONS The levels of MMP-2 and TNF-α might be useful for predicting initial AF catheter ablation responders.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN.
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Kohei Inagawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | | | - Takahiko Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Nobuhiro Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Kotaro Fukumoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Yoko Tanimoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Kojiro Tanimoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Tokyo, JAPAN
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Fukumoto K, Takatsuki S, Kimura T, Nishiyama N, Tanimoto K, Aizawa Y, Tanimoto Y, Fukuda Y, Miyoshi S, Fukuda K. Electrophysiological properties of the superior vena cava and venoatrial junction in patients with atrial fibrillation: relevance to catheter ablation. J Cardiovasc Electrophysiol 2013; 25:16-22. [PMID: 24103056 DOI: 10.1111/jce.12271] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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] [Received: 03/28/2013] [Revised: 07/09/2013] [Accepted: 08/12/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although the superior vena cava (SVC) has been well known to be one of the important foci triggering atrial fibrillation (AF), its electrophysiological characteristics have received little research attention. The aim of this study was to investigate the electrophysiological properties of the SVC and venoatrial junction (VAJ). METHODS Twenty-five consecutive AF patients without structural heart disease undergoing electrical SVC isolation were included in this study. After pulmonary vein isolation, a circular decapolar catheter and 2 multipolar catheters were emplaced in the VAJ, right atrial appendage (RAA), and SVC, respectively. Burst pacing and single extrastimulus were applied from the RAA and SVC. The atrial and caval potentials on the circular catheter in the VAJ were investigated. RESULTS Intracaval conduction delay and various degrees of conduction block over the VAJ were observed with burst pacing from both the RAA and SVC. A single extrastimulus from the RAA and SVC with a basic cycle length of 600 milliseconds prolonged the conduction time via the VAJ by 81 ± 49.7 milliseconds and 61 ± 58.7 milliseconds, respectively. The atrial and caval electrograms at the VAJ, which were separated from each other by pacing applications, facilitated mapping of the earliest activation site at the VAJ. CONCLUSIONS Intracaval conduction delay and decremental conduction property via the VAJ were demonstrated using pacing maneuvers. Pacing applications from the RAA or SVC can help distinguish the atrial and caval potentials and can facilitate mapping of the optimal ablation sites to isolate the SVC.
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Affiliation(s)
- Kotaro Fukumoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Kimura T, Takatsuki S, Aizawa Y, Anzai A, Nishiyama N, Fukumoto K, Tanimoto Y, Tanimoto K, Miyoshi S, Okuda S, Fukuda K. Ventricular Fibrillation Associated With J-Wave Manifestation Following Pericarditis After Catheter Ablation for Paroxysmal Atrial Fibrillation. Can J Cardiol 2013; 29:1330.e1-1330.e3. [DOI: 10.1016/j.cjca.2013.05.006] [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] [Received: 04/04/2013] [Revised: 04/27/2013] [Accepted: 05/08/2013] [Indexed: 10/26/2022] Open
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Ito H, Gallus S, Hosono S, Oze I, Fukumoto K, Yatabe Y, Hida T, Mitsudomi T, Negri E, Yokoi K, Tajima K, La Vecchia C, Tanaka H, Matsuo K. Time to first cigarette and lung cancer risk in Japan. Ann Oncol 2013; 24:2870-5. [PMID: 24013511 DOI: 10.1093/annonc/mdt362] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [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: 11/13/2022] Open
Abstract
BACKGROUND Cigarette smoking is the major cause of lung cancer (LC). Although the time to first cigarette (TTFC) of the day is a distinct indicator of nicotine dependence, little information is available on its possible relation to LC. PATIENTS AND METHODS This case-control study includes a total of 1572 incident LC cases and 1572 non-cancer controls visiting for the first time the Aichi Cancer Center Hospital between 2001 and 2005. We estimated the odds ratio (OR) and 95% confidence interval (CI) for TTFC using a logistic regression model after adjustment for several potential confounders. RESULTS TTFC was inversely associated with the risk of LC. This association was consistent across histological subtypes of LC. For all LCs considered among ever smokers and after accurate allowance for smoking quantity and duration, besides other relevant covariates, compared with TTFC >60 min, the adjusted ORs were 1.08 (95% CI, 0.73-1.61) for TTFC of 31-60 min, 1.40 (0.98-2.01) for 6-30 min and 1.86 (1.28-2.71) for within 5 min (Ptrend, < 0.001). Statistically marginally significant heterogeneity by histological subtype was observed (Pheterogeneity, 0.002). CONCLUSIONS Nicotine dependence, as indicated by the TTFC, is associated with increased risk of LC and is therefore an independent marker of exposure to tobacco smoking.
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Affiliation(s)
- H Ito
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
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Kimura T, Takatsuki S, Miyoshi S, Fukumoto K, Takahashi M, Ogawa E, Ito A, Arai T, Ogawa S, Fukuda K. Nonthermal cardiac catheter ablation using photodynamic therapy. Circ Arrhythm Electrophysiol 2013; 6:1025-31. [PMID: 23995252 DOI: 10.1161/circep.113.000810] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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: 11/16/2022]
Abstract
BACKGROUND Radiofrequency ablation has limitations, largely related to creation of lesions by heating. Here, we report the first nonthermal ablation by applying photodynamic therapy (PDT) to cardiac tissues using a custom-made deflectable laser catheter. The present study investigated the feasibility of PDT for cavotricuspid isthmus ablation in a canine model. METHODS AND RESULTS We evaluated the pharmacokinetic profiles of 17 canines after administration of a photosensitizer (talaporfin sodium) by various protocols. We succeeded in maintaining the photosensitizer concentration at a level in excess of the clinically effective dose for humans. Using a 4-polar 7-French deflectable laser catheter, we performed PDT-mediated cavotricuspid isthmus ablation in 8 canines. PDT caused oxidative injury only to the irradiated area and successfully produced a persistent electric conduction block. No acute, gross changes such as edematous degeneration, thrombus formation, steam pops, or traumatic injury were observed after irradiation. Hematoxylin and eosin staining of tissues samples also showed well-preserved endothelial layers. Testing of the blood samples taken before and after the procedure revealed no remarkable changes. Lesion size at 2 weeks after the procedure and the temperature data collected during irradiation were compared between the PDT and irrigated radiofrequency ablation procedures. A ventricular cross-section revealed a solid PDT lesion, which was as deep as a radiofrequency lesion. In addition, endocardial, surficial, and intramural temperature monitoring during the PDT irradiation clearly demonstrated the nonthermal nature of the ablation technique. CONCLUSIONS Nonthermal PDT-mediated catheter ablation is a potentially novel treatment for cardiac arrhythmias.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Aizawa Y, Takatsuki S, Inagawa K, Katsumata Y, Nishiyama T, Kimura T, Nishiyama N, Fukumoto K, Tanimoto Y, Tanimoto K, Ogawa S, Fukuda K. Storms of ventricular fibrillation responsive to isoproterenol in an idiopathic ventricular fibrillation patient demonstrating complete right bundle branch block. Int Heart J 2013; 54:240-2. [PMID: 23924939 DOI: 10.1536/ihj.54.240] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A 45-year-old male was admitted to our hospital after successful resuscitation of cardiac arrest. Ventricular fibrillation (VF) had occurred during breakfast and was defibrillated by an automated external defibrillator operated by emergency medical service staff. On admission, his ECG demonstrated complete right bundle branch block as the sole abnormality. Intensive examination could not detect any structural disease leading to a diagnosis of idiopathic VF and implantation of an ICD. VF storm occurred one month after hospital discharge and beta-blocker, amiodarone, and sedative administration had no effect on VF. Likewise, catheter ablation for triggering premature ventricular beats failed to control the VF storm. The VF storm then subsided in the following weeks and the patient was discharged on amiodarone. A half month later VF storm recurred and the patient was admitted again. This time, isoproterenol infusion was effective in suppressing VF, and thereafter the patient was administered bepridil and followed up without recurrence of VF for 1.5 years. From these beneficial effects, the VF of the patient was suggested to share common arrhythmogenic characteristics to those of Brugada syndrome or J-wave associated VF.
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Affiliation(s)
- Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Kimura T, Takatsuki S, Miyoshi S, Fukumoto K, Ito A, Takahashi M, Ogawa E, Motohashi S, Arai T, Fukuda K. Non-thermal photodynamic therapy: a radical and reliable approach to cardiac catheter ablation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.1909] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Aizawa Y, Yamakawa H, Takatsuki S, Katsumata Y, Nishiyama T, Kimura T, Nishiyama N, Fukumoto K, Tanimoto Y, Tanimoto K, Mitamura H, Ogawa S, Fukuda K. Efficacy and safety of bepridil for prevention of ICD shocks in patients with Brugada syndrome and idiopathic ventricular fibrillation. Int J Cardiol 2013; 168:5083-5. [PMID: 23954005 DOI: 10.1016/j.ijcard.2013.07.187] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 07/20/2013] [Indexed: 11/25/2022]
Affiliation(s)
- Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
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Fukumoto K, Yokoi K. Reply to Bertolaccini et al. Eur J Cardiothorac Surg 2013; 44:188-9. [DOI: 10.1093/ejcts/ezs687] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kimura T, Takatsuki S, Fukumoto K, Nishiyama N, Aizawa Y, Miyoshi S, Fukuda K. Idiopathic ventricular tachycardia cured by radiofrequency application from the distal great cardiac vein and the left coronary cusp. Heart Lung Circ 2013; 23:193-6. [PMID: 23731982 DOI: 10.1016/j.hlc.2013.04.124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 04/19/2013] [Accepted: 04/27/2013] [Indexed: 10/26/2022]
Abstract
A 79 year-old male without structural heart disease suffered from drug refractory ventricular tachycardia (VT). VTs and premature ventricular complexes (PVCs) with the same morphology occurred incessantly with a concordant R pattern in chest leads and a tall R in Lead II, III, and aVF. The origin was expected to be near the left epicardial ventricular outflow tract (LVOT), which was termed the left ventricular summit area. Pace-mapping from the LVOT and the left coronary cusp (LCC) did not match well with the QRS morphology of the PVC. A good match was obtained from the distal great cardiac vein (GCV), and radiofrequency (RF) delivery eliminated the PVC and VT. However, the PVC recurred four times upon cessation of RF delivery. By placing an ablation catheter at the LCC, we obtained pace-mapping showing two different types of QRS morphologies; one was an rS pattern in V1, and the other was an R pattern in V1 with a longer stimulus to QRS interval, which was a nearly perfect match to the PVC. RF application to the LCC permanently eliminated PVCs and VTs. Several VTs from the epicardial LVOT can be cured by RF application from both the distal GCV and the LCC.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Kotaro Fukumoto
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Nobuhiro Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Shunichiro Miyoshi
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Aizawa Y, Takatsuki S, Kimura T, Nishiyama N, Fukumoto K, Tanimoto Y, Tanimoto K, Miyoshi S, Suzuki M, Yokoyama Y, Chinushi M, Watanabe I, Ogawa S, Aizawa Y, Antzelevitch C, Fukuda K. Ventricular fibrillation associated with complete right bundle branch block. Heart Rhythm 2013; 10:1028-35. [PMID: 23499623 DOI: 10.1016/j.hrthm.2013.03.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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] [Received: 02/08/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND A substantial number of patients with idiopathic ventricular fibrillation (IVF) present with no specific electrocardiographic (ECG) findings. OBJECTIVE To evaluate complete right bundle branch block (RBBB) in patients with IVF. METHODS Patients with IVF showing complete RBBB were included in the present study. Structural and primary electrical diseases were excluded, and provocation tests were performed to exclude the presence of spastic angina or Brugada syndrome (BrS). The prevalence of complete RBBB and the clinical and ECG parameters were compared either in patients with IVF who did not show RBBB or in the general population and age and sex comparable controls with RBBB. RESULTS Of 96 patients with IVF, 9 patients were excluded for the presence of BrS. Of 87 patients studied, 10 (11.5%) patients showed complete RBBB. None had structural heart diseases, BrS, or coronary spasms. The mean age was 44 ± 15 years, and 8 of 10 patients were men. Among the ECG parameters, only the QRS duration was different from that of the other patients with IVF who did not show complete RBBB. Ventricular fibrillation recurred in 3:2 in the form of storms, which were well suppressed by isoproterenol. Complete RBBB was found less often in control subjects (1.37%; P < .0001), and the QRS duration was more prolonged in patients with IVF: 139 ± 10ms vs 150 ± 14ms (P = .0061). CONCLUSIONS Complete RBBB exists more often in patients with IVF than in controls. A prolonged QRS complex suggests a conduction abnormality. Our findings warrant further investigation of the role of RBBB in the development of arrhythmias in patients with IVF.
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Affiliation(s)
- Yoshiyasu Aizawa
- Department of Cardiology, School of Medicine, Keio University, Tokyo, Japan.
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Aizawa Y, Takatsuki S, Inagawa K, Katsumata Y, Nishiyama T, Kimura T, Nishiyama N, Sato Y, Fukumoto K, Tanimoto Y, Tanimoto K, Fukuda K. Narrow QRS tachycardia. Mechanism behind changes in conduction. Herz 2013; 39:276-8. [PMID: 23483224 DOI: 10.1007/s00059-013-3784-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 02/15/2013] [Accepted: 02/17/2013] [Indexed: 11/25/2022]
Affiliation(s)
- Y Aizawa
- Division of Cardiology, Keio University School of Medicine, 35 Shinanomachi, 160-8582, Shinjuku-ku, Tokyo, Japan,
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Kimura T, Takatsuki S, Inagawa K, Katsumata Y, Nishiyama T, Nishiyama N, Fukumoto K, Aizawa Y, Tanimoto Y, Tanimoto K, Jinzaki M, Fukuda K. Anatomical characteristics of the left atrial appendage in cardiogenic stroke with low CHADS2 scores. Heart Rhythm 2013; 10:921-5. [PMID: 23384894 DOI: 10.1016/j.hrthm.2013.01.036] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [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] [Received: 11/29/2012] [Indexed: 11/16/2022]
Abstract
BACKGROUND Strokes develop even in patients with low CHADS₂ scores, and the left atrial appendage (LAA) is the embolic source 90% of the time. We focused on the LAA morphology as a new predictor of strokes. OBJECTIVE To clarify the anatomical characteristics of the LAA for risk stratification of strokes in patients with nonvalvular atrial fibrillation (AF) who have low CHADS₂ scores. METHODS Among 80 patients who underwent catheter ablation of AF with contrast-enhanced computed tomography, the LAA characteristics were compared between 30 patients with histories of strokes and 50 age-matched controls. The LAA anatomy was classified into 4 types--"cactus," "cauliflower," "chicken wing," and "windsock"--discriminated by the computed tomography measurements of the length, angle, and number of lobes of the LAA. RESULTS The average CHADS₂ score did not differ significantly between patients with stroke and controls (0.8 ± 0.8 vs 0.6 ± 0.7; P = .277). Eight (26.7%) patients with stroke had CHA₂DS₂-VASc scores of 0. The left atrial size, LAA flow velocity, left ventricular function, and serum brain natriuretic peptide level were also unable to predict strokes. However, a "cauliflower" LAA, defined as a main lobe of less than 4 cm long without forked lobes, was significantly more common in patients with stroke (odds ratio 3.857; 95% confidence interval 1.482-10.037; P = .005). The CHA₂DS₂-VASc score-adjusted logistic regression analysis revealed the cauliflower LAA as an independent predictor of a stroke (odds ratio 3.355; 95% confidence interval 1.243-9.055; P = .017). CONCLUSIONS The LAA anatomy might be useful for predicting strokes in patients with nonvalvular AF who have low CHADS₂ scores.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
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Fukumoto K, Takatsuki S, Jinzaki M, Yamada M, Tanimoto K, Nishiyama N, Aizawa Y, Hagiwara Y, Fukuda Y, Kimura T, Miyoshi S, Kuribayashi S, Fukuda K. Three-dimensional imaging and mapping of the right and left phrenic nerves: relevance to interventional cardiovascular therapy. ACTA ACUST UNITED AC 2013; 15:937-43. [DOI: 10.1093/europace/eus439] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Kimura T, Miyoshi S, Okamoto K, Fukumoto K, Tanimoto K, Soejima K, Takatsuki S, Fukuda K. The effectiveness of rigid pericardial endoscopy for minimally invasive minor surgeries: cell transplantation, epicardial pacemaker lead implantation, and epicardial ablation. J Cardiothorac Surg 2012; 7:117. [PMID: 23140449 PMCID: PMC3541994 DOI: 10.1186/1749-8090-7-117] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 11/03/2012] [Indexed: 04/24/2023] Open
Abstract
Background The efficacy and safety of rigid pericardial endoscopy as the promising minimally invasive approach to the pericardial space was evaluated. Techniques for cell transplantation, epicardial pacemaker lead implantation, and epicardial ablation were developed. Methods Two swine and 5 canines were studied to evaluate the safety and efficacy of rigid pericardial endoscopy. After a double pericardiocentesis, a transurethral rigid endoscope was inserted into the pericardial space. The technique to obtain a clear visual field was examined, and acute complications such as hemodynamic changes and the effects on intra-pericardial pressure were evaluated. Using custom-made needles, pacemaker leads, and forceps, the applications for cell transplantation, epicardial pacemaker lead implantation, and epicardial ablation were also evaluated. Results The use of air, the detention of a stiff guide wire in the pericardial space, and the stretching of the pericardium with the rigid endoscope were all useful to obtain a clear visual field. A side-lying position also aided observation of the posterior side of the heart. As a cell transplantation methodology, we developed an ultrasonography-guided needle, which allows for the safe visualization of transplantation without major complications. Pacemaker leads were safely and properly implanted, which provides a better outcome for cardiac resynchronizing therapy. Furthermore, the success of clear visualization of the pulmonary veins enabled us to perform epicardial ablation. Conclusions Rigid pericardial endoscopy holds promise as a safe method for minimally invasive cell transplantation, epicardial pacemaker lead implantation, and epicardial ablation by allowing clear visualization of the pericardial space.
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Affiliation(s)
- Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
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Fukumoto K, Taniguchi T, Ishikawa Y, Kawaguchi K, Fukui T, Kato K, Matsuo K, Yokoi K. The utility of [18F]-fluorodeoxyglucose positron emission tomography-computed tomography in thymic epithelial tumours. Eur J Cardiothorac Surg 2012; 42:e152-6. [DOI: 10.1093/ejcts/ezs527] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takahashi M, Ito A, Miyoshi S, Kimura T, Takatsuki S, Fukumoto K, Fukuda K, Arai T. Study of blood charring precursor states using backscattering at 663 nm from blood and optical window boundary. Lasers Surg Med 2012; 44:508-13. [DOI: 10.1002/lsm.22049] [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] [Accepted: 06/10/2012] [Indexed: 11/10/2022]
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