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Circulation Journal: Official Journal of the Japanese Circulation Society

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https://www.readbyqxmd.com/read/27916777/modeling-inherited-arrhythmia-disorders-using-induced-pluripotent-stem-cell-derived-cardiomyocytes
#1
Vassilios J Bezzerides, Donghui Zhang, William T Pu
Inherited arrhythmia disorders (IADs) are a group of potentially lethal diseases that remain diagnostic and management challenges. Although the genetic basis for many of these disorders is well known, the pathogenicity of individual mutations and the resulting clinical outcomes are difficult to predict. Treatment options remain imperfect, and optimizing therapy for individual patients can be difficult. Recent advances in the derivation of induced pluripotent stem cells (iPSCs) from patients and creation of genetically engineered human models using CRISPR/Cas9 has the potential to dramatically advance translational arrhythmia research...
December 3, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27916776/favorable-clinical-outcomes-of-transcatheter-aortic-valve-implantation-in-japanese-patients%C3%A3-first-report-from-the-post-approval-k-tavi-registry
#2
Shinya Takimoto, Naritatsu Saito, Kenji Minakata, Shinichi Shirai, Akihiro Isotani, Yoshio Arai, Michiya Hanyu, Tatsuhiko Komiya, Takeshi Shimamoto, Tsuyoshi Goto, Yasushi Fuku, Natsuhiko Ehara, Yutaka Furukawa, Tadaaki Koyama, Atsuhi Nagasawa, Toshihiro Tamura, Makoto Miyake, Kazuo Yamanaka, Hisashi Sakaguchi, Koichiro Murata, Tomoya Onodera, Fumio Yamazaki, Masanao Nakai, Tomohiko Taniguchi, Ryuzo Sakata, Takeshi Kimura
BACKGROUND: Very limited data exist on the outcomes of transcatheter aortic valve implantation (TAVI) since Japanese marketing approval of the first TAVI device.Methods and Results:The Kyoto University-related hospital Transcatheter Aortic Valve Implantation (K-TAVI) registry includes prospectively collected data from 6 participating hospitals in Japan. We included 302 patients with severe aortic stenosis who underwent TAVI using the SAPIEN XT balloon-expandable valve via transfemoral (TF; n=203, 67%) or transapical (TA; n=99, 33%) approach between October 2013 and September 2015...
December 3, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27916778/predictive-value-of-qrs-duration-at-admission-for-in-hospital-clinical-outcome-of-takotsubo-cardiomyopathy
#3
Tetsuo Yamaguchi, Tsutomu Yoshikawa, Toshiaki Isogai, Takamichi Miyamoto, Yuichiro Maekawa, Tetsuro Ueda, Konomi Sakata, Tsutomu Murakami, Takeshi Yamamoto, Ken Nagao, Morimasa Takayama
BACKGROUND: Prolonged QRS duration (pQRSd) on electrocardiogram (ECG) is a strong predictor of poor outcome in heart failure, myocardial infarction, and myocarditis, but it is unclear whether pQRSd also predicts poor outcomes of takotsubo cardiomyopathy (TC).Methods and Results:Between 1 January 2010 and 31 December 2012, we retrospectively enrolled 299 patients with TC (mean age, 73.5±11.7 years; 21.4% male) from the Tokyo CCU Network database, which consists of 71 cardiovascular centers in the metropolitan area...
December 2, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904065/hospitalization-deteriorates-performance-of-activities-of-daily-living-by-super-elderly-patients-with-heart-failure
#4
Hideo Izawa, Yuji Kohno, Wakaya Fujiwara, Mutsuharu Hayashi
No abstract text is available yet for this article.
December 1, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904019/clinical-characteristics-and-social-frailty-of-super-elderly-patients-with-heart-failure%C3%A3-the-kitakawachi-clinical-background-and-outcome-of-heart-failure-registry
#5
Kensuke Takabayashi, Akihiro Ikuta, Yoshinori Okazaki, Mariko Ogami, Kotaro Iwatsu, Koichi Matsumura, Tsutomu Ikeda, Tahei Ichinohe, Yuko Morikami, Takashi Yamamoto, Ryoko Fujita, Kotoe Takenaka, Hiroyuki Takenaka, Yoshisumi Haruna, Hiroyuki Muranaka, Masaaki Ozaki, Tetsuhisa Kitamura, Shouji Kitaguchi, Ryuji Nohara
BACKGROUND: Social background is important in preventing admission/readmission of heart failure (HF) patients. However, few clinical studies have been conducted to assess the social background of these patients, especially elderly patients.Methods and Results:The Kitakawachi Clinical Background and Outcome of Heart Failure (KICKOFF) Registry is a prospective multicenter community-based cohort of HF patients, established in April 2015. We compared the clinical characteristics and social background of the super-elderly group (≥85 years old) and the non-super-elderly group (<85 years old)...
November 30, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904018/impact-of-plasma-kynurenine-level-on-functional-capacity-and-outcome-in-heart-failure%C3%A3-results-from-studies-investigating-co-morbidities-aggravating-heart-failure-sica-hf
#6
Masaaki Konishi, Nicole Ebner, Jochen Springer, Joerg C Schefold, Wolfram Doehner, Thomas Bernd Dschietzig, Stefan D Anker, Stephan von Haehling
BACKGROUND: Kynurenine is a circulating metabolite from the essential amino acid tryptophan. Accelerated degradation of kynurenine in skeletal muscle has been reported to provide an anti-inflammatory effect. The aim of this study was to investigate the association between blood kynurenine and muscle mass/function in patients with heart failure (HF), in whom diseased muscle mass/function plays a pathophysiological role.Methods and Results:Plasma kynurenine was assessed in 249 patients with HF (67±11 years, 21% women) and in 45 controls from the SICA-HF study...
November 30, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904032/coronary-microvascular-dysfunction%C3%A3-epidemiology-pathogenesis-prognosis-diagnosis-risk-factors-and-therapy
#7
Cheng Chen, Janet Wei, Ahmed AlBadri, Parham Zarrini, C Noel Bairey Merz
Angina has traditionally been thought to be caused by obstructive coronary artery disease (CAD). However, a substantial number of patients with angina are found to not have obstructive CAD when undergoing coronary angiography. A significant proportion of these patients have coronary microvascular dysfunction (CMD), characterized by heightened sensitivity to vasoconstrictor stimuli and limited microvascular vasodilator capacity. With the advent of non-invasive and invasive techniques, the coronary microvasculature has been more extensively studied in the past 2 decades...
November 29, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27904031/variant-aldehyde-dehydrogenase-2-aldh2-2-in-east-asians-interactively-exacerbates-tobacco-smoking-risk-for-coronary-spasm%C3%A3-possible-role-of-reactive-aldehydes
#8
Yuji Mizuno, Seiji Hokimoto, Eisaku Harada, Kenji Kinoshita, Michihiro Yoshimura, Hirofumi Yasue
BACKGROUND: Coronary spastic angina (CSA) is common among East Asians and tobacco smoking (TS) is an established risk factor for CSA. Aldehyde dehydrogenase 2 (ALDH2) plays a key role in removing reactive toxic aldehydes and a deficient variant ALDH2 genotype (ALDH2*2) is prevalent among East Asians. We examined the interaction between TS andALDH2*2as a risk factor for CSA to better understand the disease pathogenesis.Methods and Results:The study subjects comprised 410 patients (258 men, 152 women; mean age, 66...
November 29, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27885218/unusual-case-of-rupture-of-right-sinus-of-valsalva-aneurysm-into-the-left-ventricle
#9
Kiyoshi Masuyama, Hitoshi Nakamura, Naotaka Okamoto, Akihiro Tanaka, Naoki Mori, Daisuke Nakamura, Masamichi Yano, Nobuhiko Makino, Yasuyuki Egami, Ryu Shutta, Jun Tanouchi, Masami Nishino
No abstract text is available yet for this article.
November 23, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27885196/stent-recoil-manifesting-as-early-stent-thrombosis-after-ultimaster-thin-strut-cobalt-chromium-sirolimus-eluting-stent-implantation
#10
Akira Sato, Masafumi Ohtani, Hiroaki Watabe, Daiki Akiyama, Tomoya Hoshi, Kazutaka Aonuma
No abstract text is available yet for this article.
November 22, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27885195/evaluation-and-influence-of-brachiocephalic-branch-re-entry-in-patients-with-type-a-acute-aortic-dissection
#11
Shota Yasuda, Kiyotaka Imoto, Keiji Uchida, Norihisa Karube, Tomoyuki Minami, Motohiko Goda, Shinichi Suzuki, Munetaka Masuda
BACKGROUND: Stanford type A acute aortic dissection (A-AAD) extends to the brachiocephalic branches in some patients. After ascending aortic replacement, a remaining re-entry tear in the distal brachiocephalic branches may act as an entry and result in a patent false lumen in the aortic arch. However, the effect of brachiocephalic branch re-entry concomitant with A-AAD remains unknown.Methods and Results:Eighty-five patients with A-AAD who underwent ascending aortic replacement in which both preoperative and postoperative multiple-detector computed tomography (MDCT) scans could be evaluated were retrospectively studied...
November 22, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27867158/preprocedural-high-sensitivity-c-reactive-protein-predicts-long-term-outcome-of-percutaneous-coronary-intervention
#12
Hideki Wada, Tomotaka Dohi, Katsumi Miyauchi, Jun Shitara, Hirohisa Endo, Shinichiro Doi, Ryo Naito, Hirokazu Konishi, Shuta Tsuboi, Manabu Ogita, Takatoshi Kasai, Ahmed Hassan, Shinya Okazaki, Kikuo Isoda, Kazunori Shimada, Satoru Suwa, Hiroyuki Daida
BACKGROUND: High-sensitivity C-reactive protein (hs-CRP) has been used to predict the risk of adverse cardiac events in patients with coronary artery disease (CAD) after percutaneous coronary intervention (PCI). Less is known, however, about the association between hs-CRP and long-term outcome after PCI in the Japanese population.Methods and Results:We studied 3,039 all-comer patients with CAD who underwent their first PCI and had data available for preprocedural hs-CRP at Juntendo University between 2000 and 2011...
November 19, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27867157/effects-of-salt-loading-on-plasma-osteoprotegerin-levels-and-protective-role-of-potassium-supplement-in-normotensive-subjects
#13
Fu-Qiang Liu, Sheng-Qiang Liu, Yong Zhang, Yang Wang, Chao Chu, Dan Wang, Shuo Pan, Jun-Kui Wang, Qi Yu, Jian-Jun Mu
BACKGROUND: Excess dietary salt is strongly correlated with cardiovascular disease, morbidity, and mortality. Conversely, potassium likely elicits favorable effects on cardiovascular disorders. In epidemiological studies, increased plasma osteoprotegerin (OPG) concentrations are associated with atherosclerosis and vascular deaths. Our study was designed to examine the effects of salt intake and potassium supplementation on plasma OPG levels in normotensive subjects.Methods and Results:The 18 normotensive subjects were selected from a rural community in China...
November 19, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27867156/transcriptional-analysis-of-intravenous-immunoglobulin-resistance-in-kawasaki-disease-using-an-induced-pluripotent-stem-cell-disease-model
#14
Kazuyuki Ikeda, Yasutaka Mizoro, Tomonaga Ameku, Yui Nomiya, Shin-Ichi Mae, Satoshi Matsui, Yuki Kuchitsu, Chinatsu Suzuki, Akiko Hamaoka-Okamoto, Tomoyo Yahata, Masakatsu Sone, Keisuke Okita, Akira Watanabe, Kenji Osafune, Kenji Hamaoka
BACKGROUND: Approximately 10-20% of Kawasaki disease (KD) patients are resistant to intravenous immunoglobulin (IVIG) treatment. Further, these patients are at a particularly high risk of having coronary artery abnormalities. The mechanisms of IVIG resistance in KD have been analyzed using patient leukocytes, but not patient vascular endothelial cells (ECs). The present study clarifies the mechanisms of IVIG resistance in KD using an induced pluripotent stem cell (iPSC) disease model...
November 19, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27853098/prospective-identification-of-stent-fracture-by-enhanced-stent-visualization-system-during-percutaneous-coronary-intervention
#15
Simone Biscaglia, Matteo Tebaldi, Carlo Tumscitz, Rita Pavasini, Jlenia Marchesini, Francesco Gallo, Giosafat Spitaleri, Fatima Zaraket, Matteo Serenelli, Paolo Cimaglia, Giulia Bugani, Gianluca Campo
BACKGROUND: No study has evaluated the clinical consequences of stent fracture (SF) detected during the index percutaneous coronary intervention (PCI). Thus, we sought to investigate the relationship between SF detected during PCI and clinical outcome.Methods and Results:We consecutively enrolled 832 patients with SF-predisposing factors undergoing 2nd-generation drug-eluting stent implantation and enhanced stent visualization (ESV) system evaluation to detect SF at index PCI. The primary endpoint was a 9-month device-oriented endpoint (DOCE, including cardiac death, target vessel myocardial infarction, and target lesion revascularization)...
November 17, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27853097/utility-of-high-resolution-magnetocardiography-to-predict-later-cardiac-events-in-nonischemic-cardiomyopathy-patients-with-normal-qrs-duration
#16
Shoji Kawakami, Hiroshi Takaki, Shuji Hashimoto, Yoshitaka Kimura, Takahiro Nakashima, Takeshi Aiba, Kengo F Kusano, Shiro Kamakura, Satoshi Yasuda, Masaru Sugimachi
BACKGROUND: Nonischemic dilated cardiomyopathy (NIDCM) patients, even those with a narrow QRS, are at increased risk for major adverse cardiac events (MACE). We hypothesized that 64-channel magnetocardiography (MCG) would be useful to detect prognostic left intraventricular disorganized conduction (LiDC) by overcoming the limitations of fragmented QRS (fQRS, qualitative definitions, low specificity) and late potential (abnormality undetectable in earlier QRS).Methods and Results:We evaluated LiDC on MCG, defined as significant deviation from a global clockwise left ventricular (LV) activation pattern, and conventional noninvasive predictors of MACE, including fQRS and late potential, in 51 NIDCM patients with narrow QRS (LV ejection fraction, 22±7%; QRS duration, 99±11 ms)...
November 17, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27840380/management-of-gene-positive-catecholaminergic-polymorphic-ventricular-tachycardia-are-the-long-term-outcomes-on-therapy-really-so-poor-%C3%A3-reply
#17
Hiro Kawata, Wataru Shimizu
No abstract text is available yet for this article.
November 11, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27840379/impact-of-legislation-for-smoking-cessation-and-the-tokyo-olympic-and-paralympic-games-2020
#18
Akinori Fujikake, Takaaki Komatsu, Shiro Nakahara, Isao Taguchi
No abstract text is available yet for this article.
November 11, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27840378/management-of-gene-positive-catecholaminergic-polymorphic-ventricular-tachycardia-are-the-long-term-outcomes-on-therapy-really-so-poor
#19
Thomas M Roston, Shubhayan Sanatani
No abstract text is available yet for this article.
November 11, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27829591/myocardial-tissue-characterization-of-left-ventricular-reverse-remodeling-in-ischemic-cardiomyopathy
#20
Yoji Nagata, Tetsuo Konno, Kenshi Hayashi, Masa-Aki Kawashiri
No abstract text is available yet for this article.
November 10, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
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