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  1. Article: The bending technique of a scoring balloon Aperta NSE leading to successful crossing into stents.

    Funayama, Naohiro / Kayanuma, Keigo / Sunaga, Daisuke / Furugen, Makoto

    Clinical case reports

    2024  Volume 12, Issue 2, Page(s) e8524

    Abstract: A new scoring balloon Aperta NSE has 3 longitudinal nylon elements mounted on the non-compliant balloon surface. Although a high-pressure balloon is usually used as a post-dilation balloon in an implanted stent, it is difficult to pass into the stents ... ...

    Abstract A new scoring balloon Aperta NSE has 3 longitudinal nylon elements mounted on the non-compliant balloon surface. Although a high-pressure balloon is usually used as a post-dilation balloon in an implanted stent, it is difficult to pass into the stents because a balloon gets caught in stents in some cases. Aperta NSE has some grooves at elements; therefore, this balloon is bendable and shaped in an arc. The bent scoring balloon could eliminate interference between the balloon and the stents or lesions. Moreover, the point where the tip of the balloon contacts could change. As a result, it helps to improve crossability of this balloon. The bending technique of a scoring balloon Aperta NSE could lead to successful crossing into stents or complex lesions.
    Language English
    Publishing date 2024-02-08
    Publishing country England
    Document type Case Reports
    ZDB-ID 2740234-4
    ISSN 2050-0904
    ISSN 2050-0904
    DOI 10.1002/ccr3.8524
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  2. Article ; Online: Retrieval of entrapped coronary balloon catheter with Goose Neck snare.

    Aikawa, Tadao / Funayama, Naohiro / Sunaga, Daisuke / Minamino, Tohru

    Cardiovascular revascularization medicine : including molecular interventions

    2023  Volume 61, Page(s) 116–117

    MeSH term(s) Humans ; Cardiac Catheters ; Heart ; Device Removal
    Language English
    Publishing date 2023-11-20
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2212113-4
    ISSN 1878-0938 ; 1553-8389
    ISSN (online) 1878-0938
    ISSN 1553-8389
    DOI 10.1016/j.carrev.2023.11.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5562: Show issues Location:
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  3. Article: Heterogeneity and Temporal Stability of Residential Water Use Responsiveness to Price Change

    Tanishita, Masayoshi / Sunaga, Daisuke

    Water. 2021 Aug. 25, v. 13, no. 17

    2021  

    Abstract: Many papers estimate the price elasticity of water demand. However, heterogeneity and temporal variation of price elasticity of residential water use are still unclear. We analyze these issues by applying the latent class analysis and t-test using ... ...

    Abstract Many papers estimate the price elasticity of water demand. However, heterogeneity and temporal variation of price elasticity of residential water use are still unclear. We analyze these issues by applying the latent class analysis and t-test using disaggregated data of approximately 30,000 households recorded over five years: Two years before and three years after a tariff revision. As a result, the households are divided into three (heterogeneous) groups: About 5% of them responded to the price change sensitively, 40–60% slightly, and 35–55% not at all. Households with high water use prior to the revision had higher price elasticity. In addition, the price elasticity in the first and third years after the revision was the same.
    Keywords demand elasticities ; prices ; t-test ; tariffs ; temporal variation ; water
    Language English
    Dates of publication 2021-0825
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w13172329
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Treatment of an iatrogenic left main coronary artery dissection and intramural hematoma by fenestration instead of stent implantation.

    Aikawa, Tadao / Funayama, Naohiro / Sunaga, Daisuke / Furugen, Makoto / Hotta, Daisuke

    Hellenic journal of cardiology : HJC = Hellenike kardiologike epitheorese

    2022  Volume 65, Page(s) 61–63

    MeSH term(s) Aneurysm, Dissecting ; Coronary Vessels/diagnostic imaging ; Coronary Vessels/surgery ; Hematoma/etiology ; Hematoma/surgery ; Humans ; Iatrogenic Disease ; Stents/adverse effects ; Treatment Outcome
    Language English
    Publishing date 2022-03-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2215027-4
    ISSN 2241-5955 ; 1109-9666
    ISSN (online) 2241-5955
    ISSN 1109-9666
    DOI 10.1016/j.hjc.2022.02.006
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 6187: Show issues Location:
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  5. Article ; Online: Reverse redistribution-like change on dipyridamole-stress

    Aikawa, Tadao / Funayama, Naohiro / Sunaga, Daisuke / Kayanuma, Keigo / Oyama-Manabe, Noriko / Hotta, Daisuke

    Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

    2021  Volume 28, Issue 3, Page(s) 1182–1185

    MeSH term(s) Coronary Angiography ; Coronary Stenosis/diagnostic imaging ; Coronary Stenosis/etiology ; Coronary Stenosis/physiopathology ; Dipyridamole ; Echocardiography ; Electrocardiography ; Exercise Test ; Humans ; Male ; Middle Aged ; Myocardial Perfusion Imaging ; Organophosphorus Compounds ; Organotechnetium Compounds ; Tomography, Emission-Computed, Single-Photon ; Vasodilator Agents
    Chemical Substances Organophosphorus Compounds ; Organotechnetium Compounds ; Vasodilator Agents ; technetium tc-99m tetrofosmin (42FOP1YX93) ; Dipyridamole (64ALC7F90C)
    Language English
    Publishing date 2021-03-09
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1212505-2
    ISSN 1532-6551 ; 1071-3581
    ISSN (online) 1532-6551
    ISSN 1071-3581
    DOI 10.1007/s12350-021-02553-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4121: Show issues Location:
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  6. Article: The Wire Rendezvous and Chasing Wire Technique in the Bidirectional Approach for the Percutaneous Coronary Intervention for Chronic Total Occlusion with a Single Guiding Catheter.

    Nakabayashi, Keisuke / Sunaga, Daisuke / Kaneko, Nobuhito / Matsui, Akihiro / Tanaka, Kazuhiko / Ando, Hiroshi / Shimizu, Minoru

    Case reports in cardiology

    2018  Volume 2018, Page(s) 7162949

    Abstract: A bidirectional approach for percutaneous coronary intervention for chronic total occlusion (CTO-PCI) using ipsilateral collaterals with a single guiding catheter limits procedural choices. The CTO of the left circumflex artery with ipsilateral ... ...

    Abstract A bidirectional approach for percutaneous coronary intervention for chronic total occlusion (CTO-PCI) using ipsilateral collaterals with a single guiding catheter limits procedural choices. The CTO of the left circumflex artery with ipsilateral collateral artery was treated by the bidirectional approach using a single guiding catheter. While the retrograde wire directly crossed the CTO lesion, the microcatheter could not pass the CTO lesion despite the conventional strategies. Therefore, we performed the wire rendezvous and chasing wire techniques. The wire rendezvous technique enables deeper retrograde guidewire progression, and the antegrade microcatheter can reach the CTO entry. The chasing wire technique enables the antegrade guidewire to pass the route made by the retrograde guidewire. These techniques might offer a possible solution for bidirectional CTO-PCI using a single guiding catheter. However, this technique should be considered as a last resort because of the risk of rapid reocclusion.
    Language English
    Publishing date 2018-10-30
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2627627-6
    ISSN 2090-6412 ; 2090-6404
    ISSN (online) 2090-6412
    ISSN 2090-6404
    DOI 10.1155/2018/7162949
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Simple percutaneous coronary interventions using the modification of complex coronary lesion with excimer laser.

    Nakabayashi, Keisuke / Sunaga, Daisuke / Kaneko, Nobuhito / Matsui, Akihiro / Tanaka, Kazuhiko / Ando, Hiroshi / Shimizu, Minoru

    Cardiovascular revascularization medicine : including molecular interventions

    2018  Volume 20, Issue 4, Page(s) 293–302

    Abstract: Excimer laser coronary atherectomy (ELCA), a unique percutaneous coronary intervention (PCI) device, comprises a monorail-type system and is compatible with any standard 0.014-inch guidewire. ELCA is the only device that vaporizes the atherosclerotic ... ...

    Abstract Excimer laser coronary atherectomy (ELCA), a unique percutaneous coronary intervention (PCI) device, comprises a monorail-type system and is compatible with any standard 0.014-inch guidewire. ELCA is the only device that vaporizes the atherosclerotic plaques or modifies underlying plaque located underneath to a hard tissue, such as severe calcification or a stent. Therefore, ELCA differs from other coronary atherectomy devices and is useful for patients with acute coronary syndrome, chronic total occlusion or under-expanded stents. This case series reports on patients treated using ELCA to simplify complex PCI procedures. Furthermore, we review and discuss ELCA in several situations.
    MeSH term(s) Acute Coronary Syndrome/diagnostic imaging ; Acute Coronary Syndrome/therapy ; Aged ; Angioplasty, Balloon, Coronary/instrumentation ; Atherectomy, Coronary/instrumentation ; Chronic Disease ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/therapy ; Coronary Occlusion/diagnostic imaging ; Coronary Occlusion/therapy ; Coronary Stenosis/diagnostic imaging ; Coronary Stenosis/therapy ; Female ; Humans ; Lasers, Excimer/therapeutic use ; Male ; Stents ; Treatment Outcome
    Language English
    Publishing date 2018-10-26
    Publishing country United States
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 2212113-4
    ISSN 1878-0938 ; 1553-8389
    ISSN (online) 1878-0938
    ISSN 1553-8389
    DOI 10.1016/j.carrev.2018.10.022
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    In stock of ZB MED Cologne/Königswinter

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  8. Article ; Online: Effects of diabetes on myocardial infarct size and cardioprotection by preconditioning and postconditioning

    Miki Takayuki / Itoh Takahito / Sunaga Daisuke / Miura Tetsuji

    Cardiovascular Diabetology, Vol 11, Iss 1, p

    2012  Volume 67

    Abstract: Abstract In spite of the current optimal therapy, the mortality of patients with ischemic heart disease (IHD) remains high, particularly in cases with diabetes mellitus (DM) as a co-morbidity. Myocardial infarct size is a major determinant of prognosis ... ...

    Abstract Abstract In spite of the current optimal therapy, the mortality of patients with ischemic heart disease (IHD) remains high, particularly in cases with diabetes mellitus (DM) as a co-morbidity. Myocardial infarct size is a major determinant of prognosis in IHD patients, and development of a novel strategy to limit infarction is of great clinical importance. Ischemic preconditioning (PC), postconditioning (PostC) and their mimetic agents have been shown to reduce infarct size in experiments using healthy animals. However, a variety of pharmacological agents have failed to demonstrate infarct size limitation in clinical trials. One of the possible reasons for the discrepancy between the results of animal experiments and clinical trials is that co-morbidities, including DM, modified myocardial responses to ischemia/reperfusion and to cardioprotective agents. Here we summarize observations of the effects of DM on myocardial infarct size and ischemic PC and PostC and discuss perspectives for protection of DM hearts.
    Keywords Diabetes mellitus ; Infarct size ; Preconditioning ; Postconditioning ; Diseases of the circulatory (Cardiovascular) system ; RC666-701 ; Specialties of internal medicine ; RC581-951 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Cardiovascular ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 610
    Language English
    Publishing date 2012-06-01T00:00:00Z
    Publisher BioMed Central
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Utility of a 0.035″ compatible rapid-exchange balloon (Metacross RX™) as a perfusion balloon in endovascular therapy compared with conventional percutaneous coronary intervention: A mini-review.

    Nakabayashi, Keisuke / Kaneko, Nobuhito / Sunaga, Daisuke / Matsui, Akihiro / Tanaka, Kazuhiko / Ando, Hiroshi / Shimizu, Minoru

    Cardiovascular revascularization medicine : including molecular interventions

    2017  Volume 18, Issue 8, Page(s) 619–622

    Abstract: Since endovascular treatment for peripheral artery disease has been rapidly and widely adopted as the preferred strategy, interventionists sometimes experience complications such as vessel perforation and severe dissections. We have a long-time inflation ...

    Abstract Since endovascular treatment for peripheral artery disease has been rapidly and widely adopted as the preferred strategy, interventionists sometimes experience complications such as vessel perforation and severe dissections. We have a long-time inflation strategy for perfusion balloon catheters, which could be a solution for vessel complications in coronary sections, but not in peripheral sections. We invented a simple device for application as a perfusion balloon in peripheral sections, using a 0.035″ wire compatible rapid-exchange balloon Metacross RX™ (TERUMO, Tokyo, Japan) and reviewed this strategy using three cases as examples and compared them with the coronary perfusion balloon.
    Table of contents summary: Metacross RX (TERUMO, Tokyo, Japan) is being used as a rapid exchange balloon and can be potentially used as a perfusion balloon. We report a series of cases in which patients were treated using the Metacross RX at a single-center for endovascular treatment of peripheral artery disease. We review and discuss the use of this device in comparison with the conventional coronary perfusion balloon catheter.
    MeSH term(s) Aged ; Angiography ; Angioplasty, Balloon/adverse effects ; Angioplasty, Balloon/instrumentation ; Angioplasty, Balloon, Coronary/instrumentation ; Cardiac Catheters ; Equipment Design ; Female ; Humans ; Male ; Peripheral Arterial Disease/diagnostic imaging ; Peripheral Arterial Disease/physiopathology ; Peripheral Arterial Disease/therapy ; Time Factors ; Treatment Outcome ; Ultrasonography, Doppler ; Vascular Access Devices ; Vascular Patency
    Language English
    Publishing date 2017-12
    Publishing country United States
    Document type Case Reports ; Comparative Study ; Journal Article ; Review
    ZDB-ID 2212113-4
    ISSN 1878-0938 ; 1553-8389
    ISSN (online) 1878-0938
    ISSN 1553-8389
    DOI 10.1016/j.carrev.2017.05.016
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5562: Show issues Location:
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  10. Article ; Online: Eicosapentaenoic acid therapy is associated with decreased coronary plaque instability assessed using optical frequency domain imaging.

    Konishi, Takao / Sunaga, Daisuke / Funayama, Naohiro / Yamamoto, Tadashi / Murakami, Hironori / Hotta, Daisuke / Nojima, Masanori / Tanaka, Shinya

    Clinical cardiology

    2019  Volume 42, Issue 6, Page(s) 618–628

    Abstract: Background: The relationship between eicosapentaenoic acid (EPA) therapy and coronary plaque stability assessed by optical frequency domain imaging (OFDI) has not been thoroughly described.: Hypothesis: EPA therapy is associated with decreased plaque ...

    Abstract Background: The relationship between eicosapentaenoic acid (EPA) therapy and coronary plaque stability assessed by optical frequency domain imaging (OFDI) has not been thoroughly described.
    Hypothesis: EPA therapy is associated with decreased plaque instability in patients undergoing percutaneous coronary intervention (PCI) using OFDI.
    Methods: Data on coronary artery plaques from 121 patients who consecutively underwent PCI between October 2015 and July 2018 were retrospectively analyzed. Of these patients, 109 were untreated (no-EPA group), whereas 12 were treated with EPA (EPA group). Each plaque's morphological characteristics were analyzed using OFDI.
    Results: We used 1:4 propensity score matching for patients who received or did not receive EPA therapy before PCI. Baseline characteristics were balanced between both groups (age, sex, body mass index, diabetes mellitus, hypertension, dyslipidemia, chronic kidney disease, smoking, previous PCI or coronary artery bypass grafting, previous myocardial infarction, prior statin use, acute coronary syndrome, hemoglobin A1c level, low-density lipoprotein cholesterol concentration, triglyceride concentration, and high-density lipoprotein cholesterol concentration). OFDI data from 60 patients were analyzed in this study. The EPA group had significantly lower mean lipid index (818 ± 806 vs 1574 ± 891) and macrophage grade (13.5 ± 5.9 vs 19.3 ± 7.4) but higher mean minimum fibrous cap thickness (109.2 ± 55.7 vs 81.6 ± 36.4 μm) than the no-EPA group (P = 0.010, 0.019, and 0.040, respectively). Multiple logistic regression analyses showed that prior EPA use was independently associated with lower lipid index and macrophage grade (P = 0.043 and 0.024, respectively).
    Conclusion: This OFDI analysis suggests that EPA therapy is associated with decreased plaque instability in patients undergoing PCI.
    MeSH term(s) Aged ; Biomarkers/blood ; Coronary Angiography ; Coronary Artery Disease/blood ; Coronary Artery Disease/diagnosis ; Coronary Artery Disease/therapy ; Coronary Vessels/diagnostic imaging ; Eicosapentaenoic Acid/therapeutic use ; Female ; Follow-Up Studies ; Humans ; Lipids/blood ; Male ; Percutaneous Coronary Intervention/methods ; Plaque, Atherosclerotic/blood ; Plaque, Atherosclerotic/diagnosis ; Plaque, Atherosclerotic/therapy ; Reproducibility of Results ; Retrospective Studies ; Tomography, Optical Coherence/methods ; Treatment Outcome
    Chemical Substances Biomarkers ; Lipids ; Eicosapentaenoic Acid (AAN7QOV9EA)
    Language English
    Publishing date 2019-04-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 391935-3
    ISSN 1932-8737 ; 0160-9289
    ISSN (online) 1932-8737
    ISSN 0160-9289
    DOI 10.1002/clc.23185
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    Zs.A 1423: Show issues Location:
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