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Cardiovascular Intervention and Therapeutics

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https://www.readbyqxmd.com/read/28194700/perioperative-management-for-iatrogenic-aortocoronary-dissection-during-percutaneous-coronary-intervention
#1
Takashi Shuto, Hirofumi Anai, Jun Hirota, Tomoyuki Wada, Satoshi Takebayashi, Shinji Miyamoto
Aortocoronary dissection is a rare but serious complication. We report the case of a 72-year-old female with angina. Percutaneous coronary intervention was performed for right coronary artery disease. Manipulation of the guiding catheter led to aortocoronary dissection. A drug-eluting stent was immediately implanted in the right coronary ostium to seal the entry of the dissection. Computed tomography (CT) showed ascending aortic dissection. The patient was observed without surgery. CT performed the following day and showed the contrast in the false lumen which had disappeared...
February 13, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28190187/tips-of-the-dual-lumen-microcatheter-facilitated-reverse-wire-technique-in-percutaneous-coronary-interventions-for-markedly-angulated-bifurcated-lesions
#2
Tetsuya Nomura, Masakazu Kikai, Yusuke Hori, Kenichi Yoshioka, Hiroshi Kubota, Daisuke Miyawaki, Ryota Urata, Takeshi Sugimoto, Natsuya Keira, Tetsuya Tatsumi
In practical settings of percutaneous coronary intervention (PCI), we sometimes encounter difficulty in introducing a guidewire (GW) to the markedly angulated side branch (SB), and the reverse wire technique is considered as a last resort to overcome such a situation. We analyzed 12 cases that underwent PCI with dual-lumen microcatheter-facilitated reverse wire technique between January 2013 and July 2016. We retrospectively investigated the lesion's characteristics and the details of the PCI procedures, and discussed tips about the use of this technique...
February 11, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28176200/simultaneous-occurrence-of-myocardial-infarction-and-duodenal-perforation
#3
Toshihiro Suga, Keita Oyama, Yuko Suga, Takashi Hatori, Kunihiko Imai, Younosuke Kitahara
No abstract text is available yet for this article.
February 7, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28150119/second-generation-versus-first-generation-drug-eluting-stents-in-patients-with-and-without-diabetes-mellitus-pooled-analysis-from-the-reset-and-next-trials
#4
Kenji Nakatsuma, Hiroki Shiomi, Masahiro Natsuaki, Takeshi Morimoto, Keiichi Igarashi, Kazushige Kadota, Toshiya Muramatsu, Kengo Tanabe, Yoshihiro Morino, Takashi Akasaka, Yoshihisa Nakagawa, Ken Kozuma, Takeshi Kimura
The impact of second-generation drug-eluting stent (G2-DES) implantations compared with first-generation drug-eluting stents (G1-DES) implantations on long-term clinical outcomes after percutaneous coronary intervention in patients with and without diabetes mellitus (DM) has not yet been adequately assessed. This pooled analysis compared 3-year clinical outcomes between G1- and G2-DES according to the presence or absence of DM, using individual patient-level data from the RESET and NEXT trials. Among 6431 patients, G1-DES and G2-DES were used in 713 and 2211 patients, respectively, in the DM stratum, and 887 and 2620 patients, respectively, in the non-DM stratum...
February 1, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28110424/effects-of-caffeine-on-fractional-flow-reserve-values-measured-using-intravenous-adenosine-triphosphate
#5
Masafumi Nakayama, Taishiro Chikamori, Takashi Uchiyama, Yo Kimura, Nobuhiro Hijikata, Ryosuke Ito, Mikio Yuhara, Hideaki Sato, Yuichi Kobori, Akira Yamashina
We investigated the effects of caffeine intake on fractional flow reserve (FFR) values measured using intravenous adenosine triphosphate (ATP) before cardiac catheterization. Caffeine is a competitive antagonist for adenosine receptors; however, it is unclear whether this antagonism affects FFR values. Patients were evenly randomized into 2 groups preceding the FFR study. In the caffeine group (n = 15), participants were given coffee containing 222 mg of caffeine 2 h before the catheterization. In the non-caffeine group (n = 15), participants were instructed not to take any caffeine-containing drinks or foods for at least 12 h before the catheterization...
January 21, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28108954/transcatheter-closure-of-an-atrial-septal-defect-with-high-risk-of-erosion-using-a-figulla-flex-ii-atrial-septal-defect-occluder
#6
Norio Tada, Yukiko Mizutani, Takashi Matsumoto, Mie Sakurai, Tatsushi Ootomo
An 85-year-old man with a high risk for open heart surgery underwent a percutaneous closure of an atrial septal defect that lacked adequate aortic and superior rims. To avoid the risk for erosion, a Figulla Flex II ASD occluder was selected for the procedure. Implantation was successful, and no complications were observed during the 6 months of follow-up.
January 20, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28108953/predictors-of-early-restenosis-after-intracardiac-echocardiography-guided-antegrade-balloon-aortic-valvuloplasty-in-high-risk-or-inoperable-patients
#7
Shinobu Hosokawa, Yoshikazu Hiasa, Akiho Seno, Tatuo Yasuoka, Tomoko Izumi, Riyo Ogura
Antegrade balloon aortic valvuloplasty (BAV) may be more effective than retrograde BAV. However, early restenosis is found inconstantly within three months after BAV. To evaluate the factor of ER after intracardiac echocardiogram (ICE) guided Antegrade BAV, fifty patients with severe aortic stenosis (AS) underwent BAV procedures with ICE. ER was defined as mean aortic valve pressure gradient (PG) >40 mmHg. During one-year follow-up period, 6 patients died and 2 patients underwent aortic valve replacement...
January 20, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28097639/risk-of-bleeding-and-repeated-bleeding-events-in-prasugrel-treated-patients-a-review-of-data-from-the-japanese-prasfit-studies
#8
REVIEW
Masakatsu Nishikawa, Takaaki Isshiki, Takeshi Kimura, Hisao Ogawa, Hiroyoshi Yokoi, Shunichi Miyazaki, Yasuo Ikeda, Masato Nakamura, Yuko Tanaka, Shigeru Saito
Prasugrel is a third-generation thienopyridine that achieves potent platelet inhibition with less pharmacological variability than other thienopyridines. However, clinical experience suggests that prasugrel may be associated with a higher risk of de novo and recurrent bleeding events compared with clopidogrel in Japanese patients undergoing percutaneous coronary intervention (PCI). In this review, we evaluate the risk of bleeding in Japanese patients treated with prasugrel at the doses (loading/maintenance doses: 20/3...
January 17, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28054263/endovascular-intervention-for-chronically-occluded-distal-bypass-with-saphenous-vein-graft-reopening-a-long-direct-road-to-the-foot
#9
Yuki Irie, Osami Kawarada, Shinobu Ayabe, Takeshi Yagyu, Teruo Noguchi, Satoshi Yasuda
No abstract text is available yet for this article.
January 4, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28044253/transvenous-inoue-balloon-aortic-valvuloplasty-with-intra-aortic-balloon-pump-in-treating-cardiogenic-shock-due-to-critical-calcific-aortic-stenosis
#10
Yoshihito Sakata
A 90-year-old female with severe peripheral vascular disease developed cardiogenic shock (CS) due to critical aortic stenosis (AS). The balloon aortic valvuloplasty was emergently performed via transvenous and transseptal antegrade approach (ante-BAV), which saved arterial accesses for intra-aortic balloon pump (IABP) and enabled us to use the Inoue balloon. The IABP augmented systemic perfusions and controlled left heart filling pressures. Multiple times of inflations with stepwisely increased balloon diameters were performed under IABP support (ante-Inoue-BAV + IABP), resulting in remarkable improvements both in clinical and hemodynamic conditions...
January 2, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28039573/calcified-nodule-as-an-unsolved-cause-of-coronary-stent-thrombosis-in-the-new-generation-drug-eluting-stent-era
#11
Kazuhiko Yumoto, Tsubasa Kanaya, Shingo Tanaka, Tomoyuki Fukuzawa, Takahiro Watanabe, Hajime Aoki
No abstract text is available yet for this article.
December 30, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28028747/non-occlusive-mesenteric-ischemia-accompanied-by-aortic-regurgitation-after-transcatheter-aortic-valve-implantation
#12
Kentaro Meguro, Junro Ishizaki, Tomoyoshi Yanagisawa, Toshimi Koitabashi, Tadashi Kitamura, Junya Ako
An 81-year-old male with severe symptomatic aortic stenosis with ventricular tachycardia was referred for treatment. Balloon aortic valvuloplasty was performed under cardiopulmonary resuscitation. Though transcatheter aortic valve implantation (TAVI) was considered high risk for annulus rupture and aortic regurgitation due to annular calcification, TAVI was performed because of extremely high surgical risk. Moderate-to-severe aortic regurgitation (AR) remained and progression of acidosis could not be managed with continuous hemodiafiltration...
December 27, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27988833/right-coronary-artery-stenosis-associated-with-tricuspid-valve-ring-annuloplasty
#13
Keiichi Tsuchida, Kota Nishida, Hirotaka Oda, Yukio Hosaka, Kazuyoshi Takahashi, Satoshi Nakazawa
A 70-year-old man with severe symptomatic functional mitral valve regurgitation underwent successful mitral valve repair combined with tricuspid valve ring annuloplasty. Pre-operative coronary angiography (CAG) showed no significant stenosis. One-and-a-half years later, the patient presented with an acute exacerbation of heart failure. Repeat CAG demonstrated tight stenosis in the right coronary artery (RCA) with arterial kinking that corresponded to the same point as the stenosis where the RCA is the closest to the tricuspid valve ring...
December 17, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27943219/visualization-of-the-improvement-of-myocardial-perfusion-after-coronary-intervention-using-motorized-fractional-flow-reserve-pullback-curve
#14
Akiko Matsuo, Satoshi Shimoo, Kazuaki Takamatsu, Yumika Tsuji, Atsushi Kyodo, Kayoko Mera, Masahiro Koide, Koji Isodono, Yoshinori Tsubakimoto, Tomohiko Sakatani, Keiji Inoue, Hiroshi Fujita
This study aimed to evaluate the feasibility and utility of using motorized pullback of the pressure guidewire to provide a graphic assessment and prediction of the benefits of coronary intervention. Fractional flow reserve (FFR) measurements were performed with motorized pullback imaging in 20 patients who underwent successful percutaneous coronary intervention (PCI) of the left anterior descending artery. Physiological lesion length (PLL) was calculated using frame counts to determine stent length. FFR area was calculated by integrating the FFR values recorded during pullback tracing (FFRarea)...
December 10, 2016: Cardiovascular Intervention and Therapeutics
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
#15
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
#16
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
#17
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
#18
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/26968169/reduction-in-incomplete-stent-apposition-area-caused-by-jailed-struts-after-single-stenting-at-left-main-bifurcation-lesions-micro-ct-analysis-using-a-three-dimensional-elastic-bifurcated-coronary-artery-model
#19
Yutaka Hikichi, Mitsuo Umezu, Koichi Node, Kiyotaka Iwasaki
Stent struts protruding into ostial side branch called "jailed strut" at bifurcation lesions is a likely cause of thrombus formation. We aimed to investigate the influences of multiple kissing balloon inflation (KBI) for stent expansion, and stent platform design, respectively, on the reduction of incomplete stent apposition area (ISA area) caused by jailed struts at a side-branch ostium, using a three-dimensional elastic left main (LM) bifurcated coronary artery model. The referenced LM bifurcation angle data of 209 patients were stratified by tertiles focusing on the angle between the LM trunk (LMT) and left anterior descending artery (LAD)...
January 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/26754845/bailout-technique-to-rescue-the-abruptly-occluded-side-branch-with-collapsed-true-lumen-after-main-vessel-stenting
#20
Atsushi Funatsu, Ryo Hirokawa, Shigeru Nakamura
Guidewire recrossing into the abruptly occluded side branch (SB) after main vessel (MV) stenting in the coronary bifurcation is difficult, particularly if the SB has a dissection because the true lumen of SB is collapsed by a hematoma and the second guidewire easily goes into the false lumen. This paper reports a bailout technique to rescue the occluded SB that was complicated by a hematoma because of an unsuccessful guidewire recrossing after MV stenting using a small balloon dilation in the collapsed SB true lumen behind the stent strut and wire penetration...
January 2017: Cardiovascular Intervention and Therapeutics
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