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Cardiovascular Intervention and Therapeutics

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https://www.readbyqxmd.com/read/27905013/impact-of-stent-type-and-prolonged-dual-antiplatelet-therapy-on-long-term-clinical-outcomes-in-hemodialysis-patients-with-coronary-artery-disease
#1
Masahiko Asami, Jiro Aoki, Tatsuyuki Sato, Shuzou Tanimoto, Mika Watanabe, Yu Horiuchi, Koichi Furui, Kentaro Yasuhara, Yu Sato, Takuya Hashimoto, Sen Yachi, Kazuhiro Hara, Kengo Tanabe
The aim of this study was to address 7-year clinical outcomes and impact of prolonged dual antiplatelet therapy (DAPT) after coronary stenting in hemodialysis patients. Our study included 123 consecutive hemodialysis patients who had undergone percutaneous coronary intervention with a drug-eluting stent (DES) or bare-metal stent (BMS) (DES: 64, BMS: 59) in our institution. We compared long-term clinical outcomes following DES with BMS implantation as well as clinical outcomes in patients on DAPT for ≥1 year (DAPT on group, 89) with those on DAPT for <1 year (DAPT off group, 34)...
November 30, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27896704/external-and-internal-compressions-to-retrieve-a-kinked-catheter-in-the-right-brachial-artery
#2
Keisuke Nakabayashi, Naomi Kawakatsu, Naomi Nakazawa, Toshiaki Suzuki, Hisayuki Okada, Toshiaki Oka
Kinking of the catheter due to excessive rotation is not a rare complication. However, percutaneous retrieval of a kinked catheter can be difficult. The key to bailout is fixation of the catheter tip. Herein, we present a 78-year-old woman who had this complication during transradial angiography. Retrieval using several previously reported techniques was unsuccessful. We finally retrieved the kinked catheter by fixing the tip of the catheter, using external and internal compressions. The former comprises manual compression on the axillary artery, while the latter comprises deployment of a balloon catheter via another puncture site...
November 28, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27885511/does-anticoagulation-therapy-prevent-thrombosis-in-coronary-stent-grafts
#3
Yuki Honda, Kohei Wakabayashi, Takayasu Suzuki, Hiroshi Suzuki
A polytetrafluoroethylene (PTFE)-covered stent was deployed for enlarging coronary aneurysms in a 73-year-old man. Optical coherence tomography (OCT) and coronary angioscopy performed 3 months later revealed naked stent struts and thin patches of red thrombi covering the PTFE membrane even under dual antiplatelet therapy (DAPT). After 5-month warfarin administration under DAPT, OCT and angioscopy showed a clear extinction of the thin patches of red thrombi on the PTFE membrane and stent struts, although most of the struts were still naked...
November 24, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27885510/left-main-crossover-stenting-in-a-patient-with-severe-thrombocytopenia-due-to-aplastic-anemia
#4
Marie Nishikawa, Jun Shiraishi, Muneo Ohshiro, Masaki Yashige, Masayuki Hyogo, Takahisa Sawada
A 76-year-old man with aplastic anemia presented with recurrent acute myocardial infarction (AMI) with heart failure. After the initial appearance of AMI approximately 2 months earlier, he had received conservative treatment/transfusion alone because of severe thrombocytopenia and anemia (platelet 11 × 10(3)/μL, hemoglobin 6.4 g/dL). Refractory heart failure persisted despite repeated conservative treatment/transfusion for the second AMI, and therefore, we performed transradial coronary angiography and left main crossover stenting with a bare metal stent...
November 24, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27873169/evaluation-for-the-efficacy-and-safety-of-the-crosser-catheter-as-a-cto-crossing-device-and-a-flossing-device
#5
Michinao Tan, Kazushi Urasawa, Ryoji Koshida, Takuya Haraguchi, Shunsuke Kitani, Yuya Nakagawa, Yasumi Igarashi, Katsuhiko Sato
The Crosser catheter is a unique device that facilitates antegrade intraluminal recanalization by high-frequency vibration energy and cavitation. We used this device not only as a chronic total occlusion (CTO) crossing device, but also as a flossing device in stenotic lesions and we also evaluated the efficacy of this device when used with both the "Crosser preceding" and the "Guidewire preceding" in CTOs. Complications related to this device were investigated, too. We retrospectively analyzed a total of 90 consecutive patients with peripheral artery disease in the femoropopliteal artery and below-the-knee artery (BTA)...
November 21, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27848240/delamination-of-novel-ultrathin-bioabsorbable-abluminal-polymer-of-platinum-chromium-everolimus-eluting-stent
#6
Yoshihide Fujimoto, Yoshio Kobayashi, Ken Kato, Masashi Yamaguchi
No abstract text is available yet for this article.
November 15, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27832479/large-single-centre-experience-with-the-cera%C3%A2-and-ceraflex%C3%A2-occluders-for-closure-of-interatrial-communications-usefulness-of-the-flexible-rotation-feature
#7
Sotiria C Apostolopoulou, Alexandros Tsoutsinos, Cleo Laskari, Maria Kiaffas, Spyridon Rammos
We present our experience with the Cera (CO) and the CeraFlex occluder (CFO) in transcatheter closure of interatrial communications (IAC). Between 2013 and 2016, 201 patients (75 males, 16 with patent foramen ovale), aged 27 ± 19 (5-75) years, underwent percutaneous closure of IAC using CO or CFO in our institution. After transoesophageal imaging, the procedure was aborted in 7 young paediatric (6-13 years old) patients (3 multiple holes, 3 too small septum, 1 leak with 38 mm occlusion balloon). The occluder was removed prior to release in 11 patients (5...
November 10, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27830460/hydrophilic-polymer-embolization-another-differential-diagnosis-of-iatrogenic-leg-embolization-after-transcatheter-aortic-valve-replacement
#8
Ikki Komatsu, Hirotsugu Mitsuhashi, Mikihiko Nakaoka, Nobuyuki Komiyama
In daily practice, the iatrogenic complication hydrophilic polymer embolization (HPE) is under-recognized. An 86-year-old male experienced a distal foot embolization after transcatheter aortic valve replacement. Rashes appeared only in the access side foot just after the procedure. Gradual worsening of the rashes was first thought to be cholesterol crystal embolization (CCE), but a pathological examination revealed HPE. The clinical course following the diagnosis was uneventful without notable treatment. We experienced a rare but important alternative differential diagnosis of CCE after catheter intervention...
November 9, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27830459/comparison-of-radial-brachial-and-femoral-accesses-using-hemostatic-devices-for-percutaneous-coronary-intervention
#9
Masaya Otsuka, Nobuo Shiode, Yasuhisa Nakao, Yuki Ikegami, Yusuke Kobayashi, Arinori Takeuchi, Ayako Harima, Tadanao Higaki, Kuniomi Oi, Kazuoki Dai, Tomoharu Kawase, Yasuharu Nakama, Kazuyoshi Suenari, Kenji Nishioka, Koyu Sakai, Yuji Shimatani, Yoshiko Masaoka, Ichiro Inoue
Some studies have suggested that radial access (RA) for percutaneous coronary intervention (PCI) reduces vascular complications and bleeding compared to femoral access (FA). The purpose of this study was to investigate the routine use of hemostatic devices and bleeding complications among RA, brachial access (BA), and FA. Between January 2015 and December 2015, 298 patients treated for PCI with RA were compared with 158 patients using BA and 206 patients using FA. The radial sheath was routinely removed with ADAPTY, the brachial sheath with BLEED SAFE, and the femoral sheath with Perclose ProGlide...
November 9, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27822890/comparison-of-the-endothelial-coverage-in-everolimus-and-zotarolimus-eluting-stents-in-normal-atherosclerotic-and-bifurcation-rabbit-iliac-arteries
#10
Sho Torii, Gaku Nakazawa, Takeshi Ijichi, Ayako Yoshikawa, Yohei Ohno, Yuji Ikari
The aim of this study is to evaluate differences in stent endothelial coverage among the second generation of drug-eluting stents. Incomplete stent coverage is one of the major causes of late stent thrombosis. Rabbits fed a normal diet received an everolimus (Xience Prime; EES) and a zotarolimus-eluting stent (Resolute Integrity; R-ZES) in each iliac artery, followed by sacrifice at 14 and 28 days after stent implantation. In addition, a group of atherosclerotic rabbits similarly received EES and R-ZES, and were sacrificed at 28 days...
November 7, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27822889/intravascular-ultrasound-guided-drug-eluting-stent-implantation
#11
REVIEW
Tadayuki Kadohira, Yoshio Kobayashi
Intravascular ultrasound (IVUS) is a reliable imaging tool to guide percutaneous coronary intervention. There has been increasing evidence supporting the clinical utility of IVUS-guided drug-eluting stent (DES) implantation, including randomized trials, observational studies, and meta-analyses of both. IVUS provides cross-sectional views of the coronary artery wall, and allows us to assess stenosis severity, identify plaque morphology, optimize stent implantation, and understand mechanism of stent failure. IVUS guidance can increase DES efficacy and decrease clinical events...
November 7, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27797010/seesaw-double-guideliner-%C3%A2-catheter-technique-for-a-successful-bail-out-procedure-from-blow-out-type-coronary-perforation
#12
Takeshi Sugimoto, Tetsuya Nomura, Daisuke Miyawaki, Taku Kato, Natsuya Keira, Tetsuya Tatsumi
We encountered a case of blow-out type coronary perforation at the calcified stenosis of left anterior descending artery. First, we started immediate balloon tamponade through the initial guiding catheter (GC) with a GuideLiner(®) catheter. Next, we introduced a second GC with a GuideLiner(®) catheter and successfully deployed a covered stent. Two sets of the GC with GuideLiner(®) catheter facilitated us to simultaneously perform temporary hemostasis with balloon tamponade and rapid delivery of a covered stent...
October 31, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27757830/off-label-use-of-7fr-guideliner-in-the-bifurcation-coronary-intervention-protecting-2-side-branches
#13
Takayuki Warisawa, Toru Naganuma, Sunao Nakamura
We report a case of percutaneous coronary intervention in a bifurcation lesion involving left circumflex (LCx) artery and 2 major posterolateral (PL) arteries. The target LCx had diffuse long and severely calcified lesion with the acute takeoff angle from the left main. Despite adequate lesion preparation with rotational atherectomy and balloon angioplasty, the stent was not deliverable, even with deep intubation of 7Fr-guiding catheter. Conventional use of guiding extension catheter (GEC) would have required removal of a wire from at least one PL because of the device interference in the GEC...
October 18, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27709537/impact-of-preprocedural-atrial-fibrillation-on-immediate-and-long-term-outcomes-after-successful-percutaneous-mitral-valvuloplasty-of-significant-mitral-stenosis
#14
Shiro Miura, Takeshi Arita, Takenori Domei, Kyohei Yamaji, Yoshimitsu Soga, Makoto Hyodo, Shinichi Shirai, Kenji Ando
Optimal time to perform percutaneous mitral valvuloplasty (PMV) for patients with significant mitral stenosis (MS) and atrial fibrillation (AF) remains controversial. We sought to identify prognostic factors and evaluate long-term clinical outcomes after PMV of 77 consecutive patients with MS with a mitral valve area (MVA) <1.5 cm(2). According to baseline heart rhythm, these patients were divided into sinus rhythm (SR; n = 24) and AF (n = 53) groups. The study endpoint was defined as a composite of all-cause mortality, admission for heart failure, mitral valve surgery, repeated PMV, and major cerebral vascular accident during follow-up...
October 5, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27682657/successful-rotational-atherectomy-over-rg3-guidewire-after-failure-of-various-techniques-to-deliver-rotawire
#15
Umihiko Kaneko, Yoshifumi Kashima, Daitaro Kanno, Takuro Sugie, Ken Kobayashi, Tsutomu Fujita
Although performing rotational atherectomy (RA) requires guidewire exchange for the dedicated guidewire, RotaWire guidewire (Boston Scientific) exhibits much lower performance than conventional guidewire. Consequently, there are times when RotaWire cannot be advanced past the lesion independently or using a microcatheter exchange technique, rendering RA impossible. We present a case of a heavily calcified, device-uncrossable, and non-expansible chronic total occlusion lesion successfully revascularized with RA over RG3 guidewire (Asahi Intecc), which has a length of 330 cm, hydrophilic coating, and a 0...
September 28, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27678385/subacute-mechanical-stenosis-due-to-twisted-saphenous-vein-graft-identified-by-intravascular-ultrasound
#16
Eiji Ichimoto, Sawako Horie, Atsushi Hasegawa, Hirofumi Miyahara, Mizuo Nameki
No abstract text is available yet for this article.
September 27, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27665545/twisting-method-for-reducing-friction-during-insertion-of-a-sheath-introducer-and-a-sheathless-guiding-catheter
#17
Yoshitoki Takagawa, Tetsuaki Furukawa
A sheathless system that inserts a catheter directly into the artery can reduce puncture site-related complications through a 2-Fr reduction of the outer diameter. However, the gap between the dilator and the guiding catheter of the sheathless system is larger than the gap between the dilator and sheath of the introducer system, resulting in stronger insertion resistance. A twisting method with rapid alternating rotation of a device to the left and right during insertion can reduce the insertion resistance...
September 24, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27646646/short-versus-prolonged-dual-antiplatelet-therapy-duration-after-bare-metal-stent-implantation-2-month-landmark-analysis-from-the-credo-kyoto-registry-cohort-2
#18
Masahiro Natsuaki, Takeshi Morimoto, Yutaka Furukawa, Yoshihisa Nakagawa, Kazushige Kadota, Kenji Ando, Hiroki Shiomi, Toshiaki Toyota, Hirotoshi Watanabe, Koh Ono, Satoshi Shizuta, Takashi Tamura, Moriaki Inoko, Tsukasa Inada, Manabu Shirotani, Mitsuo Matsuda, Takeshi Aoyama, Tomoya Onodera, Satoru Suwa, Teruki Takeda, Katsumi Inoue, Takeshi Kimura
One-month duration of dual antiplatelet therapy (DAPT) has widely been adopted after bare-metal stent (BMS) implantation in the real clinical practice. However, it has not been adequately addressed yet whether DAPT for only 1-month could provide sufficient protection from ischemic events beyond 1-month after BMS implantation. We assessed the effects of short DAPT relative to prolonged DAPT on clinical outcomes with the landmark analysis at 2 month after BMS implantation. Among 13,058 consecutive patients enrolled in the CREDO-Kyoto registry cohort-2, this study population consisted of 4905 patients treated with BMS only in whom the information on the status of antiplatelet therapy was available at 2 month after stent implantation [single-antiplatelet therapy (SAPT) group: N = 2575 (acute myocardial infarction (AMI): N = 1257, and non-AMI: N = 1318), and DAPT group: N = 2330 (AMI: N = 1304, and non-AMI: N = 1026)]...
September 19, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27628104/effect-of-an-nse-pta-balloon-in-experimental-lesion-models
#19
Yoshimitsu Soga, Kenji Ando
The effect of a scoring balloon has been reported. However, it is difficult to compare the effect of conventional vs. scoring balloons on the same lesion. Therefore, we assessed the scoring effect of the NSE with and without elements. The endpoints of this study were scoring grade in the eccentric agar model and crack incidence in the eccentric plaster model after ballooning. The scoring grade consisted of 5 levels: (1) almost none, (2) only at the surface, (3) cleavage in the depth of less than two-thirds, (4) cleavage in the depth of two-thirds or more, and (5) collapse...
September 14, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/26711632/influence-of-transcatheter-closure-of-atrial-communication-on-migraine-headache-in-patients-with-ischemic-stroke
#20
Yoichi Takaya, Teiji Akagi, Yasufumi Kijima, Koji Nakagawa, Syoichiro Kono, Kentaro Deguchi, Shunji Sano, Hiroshi Ito
Some types of migraine are associated with ischemic stroke. Although a right-to-left communication is linked with ischemic stroke, a causal relationship between migraine and right-to-left communication remains unclear. Furthermore, the efficacy of transcatheter closure of atrial communication on migraine is controversial. We aimed to evaluate the influence of transcatheter closure of atrial communication on migraine in patients with ischemic stroke. Thirty-eight consecutive patients with ischemic stroke who underwent transcatheter closure of atrial communication were enrolled...
October 2016: Cardiovascular Intervention and Therapeutics
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