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Circulation Journal: Official Journal of the Japanese Circulation Society

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https://www.readbyqxmd.com/read/29332909/type-2-myocardial-infarction%C3%A3-an-evolving-entity
#1
Cian P McCarthy, James L Januzzi, Hanna K Gaggin
Type 2 myocardial infarction (T2MI) refers to myocardial necrosis caused by an imbalance in myocardial oxygen supply and demand and in the absence of acute coronary thrombosis. Despite growing recognition of this entity, there remains little understanding of the pathophysiology and uncertainty over the diagnostic criteria for this subtype of MI. Alarmingly, recent studies suggest that a diagnosis of T2MI pertains a prognosis similar to, if not worse than, type 1 MI. With increasing clinical use of high-sensitivity cardiac troponin assays, the frequency of recognition of T2MI is expected to increase...
January 13, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29332908/optical-coherence-tomography-guidance-in-management-of-acute-coronary-syndrome-caused-by-plaque-erosion
#2
Haibo Jia, Takashi Kubo, Takashi Akasaka, Bo Yu
For several decades, most physicians have believed that acute coronary syndrome (ACS) is caused by coronary thrombosis resulting from rupture of vulnerable plaque characterized by a thin fibrous cap overlying a large necrotic core and massive inflammatory cell infiltration. However, nearly one-third of ACS cases are caused by plaque erosion characterized by intact fibrous cap, less or absent necrotic core, less inflammation, and large lumen. Because of the limitations of current imaging modalities, including angiography and intravascular ultrasound, the importance of plaque erosion as a cause of acute coronary events is less well known...
January 13, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29332907/patients-characteristics-and-clinical-course-of-hypertrophic-cardiomyopathy-in-a-regional-japanese-cohort%C3%A3-results-from-kochi-ryoma-study
#3
Toru Kubo, Takayoshi Hirota, Yuichi Baba, Yuri Ochi, Asa Takahashi, Naohito Yamasaki, Naohisa Hamashige, Katsuhito Yamamoto, Fumiaki Kondo, Kanji Bando, Eisuke Yamada, Takashi Furuno, Toshikazu Yabe, Yoshinori L Doi, Hiroaki Kitaoka
BACKGROUND: There have been few studies on the clinical course of hypertrophic cardiomyopathy (HCM) in a community-based patient cohort in Japan.Methods and Results:In 2004, we established a cardiomyopathy registration network in Kochi Prefecture (the Kochi RYOMA study) that consisted of 9 hospitals, and finally, 293 patients with HCM were followed. The ages at registration and at diagnosis were 63±14 and 56±16 years, respectively, and 197 patients (67%) were male. HCM-related deaths occurred in 23 patients during a mean follow-up period of 6...
January 13, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29332866/impact-of-stent-type-on-the-long-term-prognosis-of-patients-with-vasospastic-angina%C3%A3-can-we-judge-a-stent-just-by-its-cover
#4
Hiroto Suzuyama, Tomohiro Sakamoto, Koich Nakao
No abstract text is available yet for this article.
January 12, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29321401/has-the-development-of-drug-eluting-stents-ended-with-limus-eluting-stents
#5
Ken Kozuma
No abstract text is available yet for this article.
January 11, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29321400/report-of-the-american-heart-association-aha-scientific-session-2017-anaheim-california
#6
Yoshihiro Seo
On November 11-15, the American Heart Association (AHA) Scientific Sessions 2017 were held in Anaheim, California, for the first time in 16 years. The annual sessions attracted nearly 18,000 attendees, with a global presence from more than 100 countries, and featured 5 days of programming for cardiovascular basic scientists, clinicians, and researchers. As usual, activities of participants from Japan were prominent. From the exciting sessions, I report the topics and key presentations including the late-breaking clinical trials...
January 11, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29321399/where-are-the-secrets-of-increased-thrombosis-and-aneurysm-formation-with-the-current-bioresorbable-vascular-scaffolds-hidden-%C3%A3-reply
#7
Jeehoon Kang, Hyo-Soo Kim
No abstract text is available yet for this article.
January 11, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29321398/where-are-the-secrets-of-increased-thrombosis-and-aneurysm-formation-with-the-current-bioresorbable-vascular-scaffolds-hidden
#8
Nicholas G Kounis, Ioanna Koniari, Grigorios Tsigkas, George D Soufras, George Hahalis
No abstract text is available yet for this article.
January 11, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29321390/unsolved-antiatherogenic-mechanism-of-n-3-polyunsaturated-fatty-acids
#9
Masa-Aki Kawashiri, Hayato Tada, Masakazu Yamagishi
No abstract text is available yet for this article.
January 10, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29311519/left-ventricular-mass-influences-relationship-between-filling-pressure-and-early-diastolic-ratio-of-inflow-velocity-to-mitral-annular-velocity-e-e
#10
Masahiro Nakabachi, Satoshi Yamada, Hiroyuki Iwano, Taichi Hayashi, Kazunori Okada, Kenya Kusunose, Kiyotaka Watanabe, Tomoko Ishizu, Kazuaki Wakami, Hirotsugu Yamada, Kaoru Dohi, Yoshihiro Seo, Nobuyuki Ohte, Chikara Shimizu, Taisei Mikami
BACKGROUND: Early-diastolic mitral annular velocity (e') and the ratio of early-diastolic left ventricular (LV) inflow velocity (E) to e' (E/e') have been widely used as indexes of LV relaxation and filling pressure, respectively. However, many recent studies have demonstrated that they are not reliable in various clinical settings. We thus investigated the factors influencing these echocardiographic parameters in a multicenter study.Methods and Results:The study group comprised 69 patients, referred for cardiac catheterization, and enrolled in 5 university hospitals...
December 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29311518/impact-of-frailty-markers-for-unplanned-hospital-readmission-following-transcatheter-aortic-valve-implantation
#11
Mike Saji, Ryosuke Higuchi, Tetsuya Tobaru, Nobuo Iguchi, Shuichiro Takanashi, Morimasa Takayama, Mitsuaki Isobe
BACKGROUND: Various frailty markers have been developed to guide better patient selection for transcatheter aortic valve implantation (TAVI). This study aimed to investigate the frequency and specific causes of unplanned hospital readmission after TAVI, and to investigate which frailty markers better predicted outcomes.Methods and Results:We retrospectively reviewed 155 patients for whom we calculated their Short Physical-Performance Battery (SPPB), Placement of AoRTic TraNscathetER Valve (PARTNER) frailty scale, frailty index, clinical frailty scale, modified Fried scale, and gait speed...
December 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29311517/clinical-characteristics-of-adult-patients-with-congenital-heart-disease-hospitalized-for-acute-heart-failure
#12
Jun Negishi, Hideo Ohuchi, Aya Miyazaki, Etsuko Tsuda, Isao Shiraishi, Kenichi Kurosaki
BACKGROUND: Heart failure (HF) is an important complication in adults with congenital heart disease (CHD), but because only a few studies have focused on acute HF hospitalization in adults with CHD, we study aimed to define the clinical characteristics of such patients and examine the differences in acute HF between adults with CHD and acquired heart disease.Methods and Results:We retrospectively evaluated 50 adults with CHD admitted for treatment of acute HF and compared their data with those from Japanese HF registries...
December 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29311499/transcatheter-aortic-valve-implantation-tavi-for-native-aortic-valve-regurgitation%C3%A3-a-systematic-review
#13
Altayyeb Yousef, Zachary MacDonald, Trevor Simard, Juan J Russo, Joshua Feder, Michael V Froeschl, Alexander Dick, Christopher Glover, Ian G Burwash, Azeem Latib, Josep Rodés-Cabau, Marino Labinaz, Benjamin Hibbert
BACKGROUND: Transcatheter aortic valve implantation (TAVI) has become the standard of care for management of high-risk patients with aortic stenosis. Limited data is available regarding the performance of TAVI in patients with native aortic valve regurgitation (NAVR).Methods and Results:We performed a systematic review from 2002 to 2016. The primary outcome was device success as per VARC-2 criteria. Secondary endpoints included procedural complications, and 30-day and 1-year mortality rates...
December 28, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29279460/silent-cerebral-infarction-in-east-asian-vs-non-asian-atrial-fibrillation-patients%C3%A3-meta-analysis
#14
Keitaro Senoo, Yusuke Kondo, Yoshio Kobayashi, Gregory Yh Lip
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia in the ageing population in East Asia. Silent cerebral infarction (SCI) is defined as cerebral infarction in the absence of corresponding clinical symptoms, and is a highly prevalent and morbid condition in AF. SCI is increasingly being recognized as a risk factor for future stroke, which can lead to cognitive decline or dementia. The latter is an increasingly common health problem in East Asia.Methods and Results:We conducted a meta-analysis to compare the association of AF and SCI between East Asian and non-Asian patients...
December 27, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29279459/does-size-matter-cryoballoon-based-pulmonary-vein-isolation-using-a-novel-25-mm-circular-mapping-catheter
#15
Bruno Reissmann, Michael Schlüter, Francesco Santoro, Tilman Maurer, Christian-Hendrik Heeger, Christine Lemes, Thomas Fink, Johannes Riedl, Andreas Rillig, Shibu Mathew, Feifan Ouyang, Karl-Heinz Kuck, Andreas Metzner
BACKGROUND: Real-time recording of pulmonary vein isolation (PVI) using a circular mapping catheter has become a key aspect of cryoballoon (CB) ablation. The aim of this study was to investigate the procedural safety, efficacy and rate of real-time pulmonary vein (PV) recording using a novel circular mapping catheter with a 25-mm loop size for CB-based PVI.Methods and Results:A total of 40 patients with symptomatic atrial fibrillation (AF) underwent PVI using a second-generation CB and a novel 25-mm circular mapping catheter...
December 27, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29276212/identification-of-undeployed-stent-in-the-left-main-coronary-artery-after-3-years-on-optical-coherence-tomography
#16
Thibault Ronchard, Nicolas Combaret, Guilhem Malcles, Pascal Motreff, Géraud Souteyrand
No abstract text is available yet for this article.
December 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29276211/treatment-patterns-statin-intolerance-and-subsequent-cardiovascular-events-among-japanese-patients-with-high-cardiovascular-risk-initiating-statin-therapy
#17
Saurabh P Nagar, Pratik P Rane, Kathleen M Fox, Juliana Meyers, Keith Davis, Anne Beaubrun, Hyoe Inomata, Yi Qian, Kouji Kajinami
BACKGROUND: This study examined treatment patterns, possible statin intolerance, and incidence of cardiovascular events (CVEs) in 2 cohorts of patients with high cardiovascular risk (i.e., patients with atherosclerotic cardiovascular disease [ASCVD] and patients with diabetes mellitus).Methods and Results:A retrospective cohort study examined adults initiating either a statin or ezetimibe from 1 January 2006 to 31 May 2014 in the Japan Medical Data Center database. The first observed statin or ezetimibe prescription defined the index date...
December 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29269702/insufficient-warfarin-therapy-is-associated-with-higher-severity-of-stroke-than-no-anticoagulation-in-patients-with-atrial-fibrillation-and-acute-anterior-circulation-stroke
#18
Yuki Sakamoto, Seiji Okubo, Chikako Nito, Satoshi Suda, Noriko Matsumoto, Yasuhiro Nishiyama, Junya Aoki, Takashi Shimoyama, Takuya Kanamaru, Kentaro Suzuki, Masahiro Mishina, Kazumi Kimura
BACKGROUND: Insufficient anticoagulant intensity on admission is common in stroke patients with atrial fibrillation (AF) on vitamin K antagonist (VKA) therapy. Nevertheless, the effects of VKA under-treatment on stroke severity or arterial occlusion are not well known. The aim of the present study was to investigate the relationship between insufficient VKA therapy and stroke severity, or the site of arterial occlusion in patients with acute ischemic stroke (AIS) and AF.Methods and Results:From March 2011 through July 2016, 446 consecutive patients with AF and AIS were recruited...
December 21, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29269701/impact-of-stent-to-vessel-diameter-ratio-on-restenosis-in-the-superficial-femoral-artery-after-endovascular-therapy
#19
Naoya Kurata, Osamu Iida, Tatsuya Shiraki, Masashi Fujita, Masaharu Masuda, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Takashi Kanda, Akihiro Sunaga, Takuya Tsujimura, Mitsuyoshi Takahara, Toshiaki Mano
BACKGROUND: Although stent-to-vessel (S/V) diameter ratio has been described as a restenotic factor after superficial femoral artery (SFA) stenting, the reference vessel diameter is commonly measured distally at a healthy site. It remains unclear whether S/V ratio assessed at the lesion site would be more predictive than that assessed distally at a healthy site.Methods and Results:A total of 117 patients (mean age, 73±7 years; 74% male) who underwent successful nitinol stent implantation in SFA lesions (mean lesion length, 172±104 mm) on intravascular ultrasound (IVUS) were retrospectively analyzed...
December 21, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29269613/two-year-outcomes-and-predictors-of-target-lesion-revascularization-for-non-left-main-coronary-bifurcation-lesions-following-two-stent-strategy-with-2nd-generation-drug-eluting-stents
#20
Masanobu Ohya, Takeshi Morimoto, Shunsuke Kubo, Seiji Habara, Akimune Kuwayama, Katsuya Miura, Takenobu Shimada, Hidewo Amano, Suguru Otsuru, Takeshi Tada, Hiroyuki Tanaka, Yasushi Fuku, Tsuyoshi Goto, Kazushige Kadota
BACKGROUND: Data on outcomes of non-left main coronary bifurcation lesions treated with the 2-stent strategy using 2nd-generation drug-eluting stents (DES) are insufficient.Methods and Results:The 2-year outcomes and predictors of target lesion revascularization (TLR) in 356 patients with 364 non-left main coronary bifurcation lesions treated with the 2-stent strategy using 2nd-generation DES were retrospectively evaluated. The primary outcome measure was defined as TLR. The median follow-up duration was 3...
December 19, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
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