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Journal of Cardiology

Arihiro Kiyosue
No abstract text is available yet for this article.
October 12, 2017: Journal of Cardiology
Hidekazu Kondo, Ichitaro Abe, Akira Fukui, Shotaro Saito, Miho Miyoshi, Kohei Aoki, Tetsuji Shinohara, Yasushi Teshima, Kunio Yufu, Naohiko Takahashi
BACKGROUND: Coagulation factor Xa (FXa) promotes thrombus formation and exacerbates inflammation via activation of protease-activated receptor (PAR)-2. We tested the hypothesis of whether administration of direct oral anticoagulant, rivaroxaban, would attenuate transverse aortic constriction (TAC)-induced atrial inflammatory fibrosis and vulnerability to atrial fibrillation (AF) in mice. METHODS: Ten-week-old male CL57/B6 mice were divided into a sham-operation (CNT) group and TAC-surgery group...
October 6, 2017: Journal of Cardiology
Tomoko Nishi, Kentaro Shibayama, Minoru Tabata, Nahoko Kato, Masahiko Noguchi, Hiroshi Okumura, Yuji Kawano, Daisuke Nakatsuka, Kotaro Obunai, Yoshio Kobayashi, Hiroyuki Watanabe
BACKGROUND: There is a paucity of data that demonstrates a clinical impact of anatomical measurements of the aortic annulus by three-dimensional (3D) transesophageal echocardiography (TEE) on surgical aortic valve replacement (AVR). The aim of this study is to validate the accuracy of 3D TEE measurements compared with the direct intraoperative annular diameter and to investigate an impact of 3D TEE on a prediction of AVR with aortic annular enlargement (AAE). METHODS AND RESULTS: We retrospectively enrolled 61 patients who underwent both two-dimension (2D) and 3D TEE and transthoracic echocardiography (TTE) before AVR...
October 3, 2017: Journal of Cardiology
Atsushi Mizuno, Hayato Iguchi, Yuuka Sawada, Hiroshi Nomura, Nobuyuki Komiyama, Sachiko Watanabe, Aki Yoshikawa
BACKGROUND: Due to the rarity of this condition, clinical treatment and outcomes in isolated superior mesenteric artery dissection (ISMAD) patients remain unknown. The primary aim of this retrospective multicenter study was to elucidate the treatment strategies and in-hospital outcomes for ISMAD patients by using administrative data. METHODS: We retrospectively analyzed patients that were primarily diagnosed with ISMAD using the Diagnosis Procedure Combination data collected at 141 hospitals in Japan in 2015...
September 29, 2017: Journal of Cardiology
Masako Kochi, Kentaro Kohagura, Yoshiki Shiohira, Kunitoshi Iseki, Yusuke Ohya
BACKGROUND: Rheumatoid arthritis (RA), a prototypic systemic autoimmune inflammatory condition, confers an increased risk of cardiovascular disease (CVD). Recently, chronic kidney disease (CKD) was suggested to increase the risk of CVD in RA patients, and inflammation was identified as a critical, nontraditional CKD-associated risk factor for CVD. This study aimed to examine the combined effects of CKD and CVD in RA patients. METHODS: In this retrospective evaluation of 428 RA patients, the outcome of interest was the incidence of CVD...
September 29, 2017: Journal of Cardiology
Shigenobu Bando, Akiyoshi Nishikado, Norikazu Hiura, Shuntaro Ikeda, Akiyoshi Kakutani, Katsuhito Yamamoto, Noriyoshi Kaname, Masahiko Fukatani, Yuichiro Takagi, Kazushi Yukiiri, Yamato Fukuda, Yutaka Nakaya
BACKGROUND: The Shikoku Rivaroxaban Registry Trial (SRRT) is a retrospective survey of the use of rivaroxaban for stroke prevention in elderly patients in Shikoku, Japan. METHODS: The SRRT enrolled 1339 patients from 8 hospitals. Patients were divided into two groups according to their age, the extreme elderly group (453 patients aged ≧80 years) and the control group (886 patients aged <80 years). RESULTS: In the extreme elderly group, 41...
September 29, 2017: Journal of Cardiology
Hyo-In Rhyou, Tae-Ho Park, Young-Rak Cho, Kyungil Park, Jong-Sung Park, Moo-Hyun Kim, Young-Dae Kim
BACKGROUND: Advanced age, poor left ventricular function, and congestive heart failure are known predictors of atrial fibrillation (AF) in acute myocardial infarction (AMI) patients. Recent advances in AMI treatment may have changed the occurrence of new-onset AF. Thus, we investigated the factors associated with the development of new-onset AF in ST elevation myocardial infarction (STEMI) patients. METHODS: This study included 527 STEMI patients [mean age, 60.6±12...
September 29, 2017: Journal of Cardiology
Naoto Kumagai, Kaoru Dohi, Naoki Fujimoto, Muneyoshi Tanimura, Yuichi Sato, So Miyahara, Shiro Nakamori, Eitaro Fujii, Norikazu Yamada, Masaaki Ito
BACKGROUND: There is no established method to quantitatively measure the presence and the severity of respiratory instability (RI). The purpose of this pilot study was to propose a novel index of diurnal RI as a surrogate measure of clinical severity of heart failure (HF). METHODS AND RESULTS: We prospectively enrolled 60 patients with symptomatic HF [70±14 years, 75% male, and New York Heart Association (NYHA) functional classes II-IV] who underwent right heart catheterization (RHC), and recorded diurnal respiration using a nasal pressure sensor during bed rest while awake within 2 days before or after RHC...
September 25, 2017: Journal of Cardiology
Hiroaki Yokoyama, Takumi Higuma, Tomohide Endo, Fumie Nishizaki, Kenji Hanada, Takashi Yokota, Masahiro Yamada, Ken Okumura, Hirofumi Tomita
BACKGROUND: Rapid and accurate diagnosis of acute myocardial infarction (AMI) are critical for the initiation of effective medical treatment. Recently, a high-sensitivity cardiac troponin I (hs-cTnI) assay was developed as a biochemical marker for the early diagnosis of AMI. Current guidelines recommend that serial measurements of cardiac troponin should be performed in patients who present symptoms suggestive of acute coronary syndrome. The aim of this study was to evaluate the diagnostic performance of 30-minute serial measurements of hs-cTnI for the detection of AMI...
September 20, 2017: Journal of Cardiology
Ichiro Watanabe
Ahmed et al. showed that atrial fibrillation (AF) was identified in 9.5% in smokers vs 7.8% in non-smokers (p<0.001) and smoking was associated with a 15% increased risk of AF during 10 years follow up in 11,047 participants. However, heterogeneities in the association were observed among subgroups; the association was stronger in young compared to older participants and in those with prior cardiovascular disease compared to without cardiovascular disease, also the association was significant in blacks but not in whites [1]...
September 13, 2017: Journal of Cardiology
Ayako Okada, Morio Shoda, Hiroaki Tabata, Wataru Shoin, Hideki Kobayashi, Takahiro Okano, Koji Yoshie, Yasutaka Oguchi, Takahiro Takeuchi, Ken Kato, Koichiro Kuwahara
BACKGROUND: The estimated incidence of infected cardiac implantable electric devices (CIED) has recently increased to 1-2% in Japan. Extraction of long-term implanted devices is generally difficult. There are few reports about lead extraction in Japan. We describe our experience with and outcomes of lead extraction using excimer lasers, mechanical sheaths, and manual extraction. METHODS: We retrospectively analyzed the characteristics, types of devices, and indications for extraction in 29 patients with 67 leads who required CIED lead extraction at Shinshu University Hospital between April 2014 and October 2016...
September 13, 2017: Journal of Cardiology
Ichiro Matsumoto, Atsushi Misaki, Mizuki Kurozumi, Tsunetatsu Nanba, Yuichiro Takagi
BACKGROUND: Some studies have demonstrated that low-density lipoprotein cholesterol (LDL-C) lowering therapy is one of the most important strategies to prevent coronary artery disease. Also, serum triglycerides (TG) and high-density lipoprotein cholesterol (HDL-C) are recognized as independent risk factors of cardiovascular diseases. The aim of this study was to investigate whether the nonfasting TG/HDL-C ratio could affect the incidence of cardiovascular events after percutaneous coronary intervention (PCI) even in patients treated with statins...
September 12, 2017: Journal of Cardiology
Massimiliano Cantinotti, Raffaele Giordano, Marco Scalese, Eliana Franchi, Giulia Corana, Nadia Assanta, Crocetti Maura, Marotta Marco, Sabrina Molinaro, Martin Koestenberger, Giorgio Iervasi
BACKGROUND: The sub-costal examination of the heart is part of routine examination in pediatric echocardiography, and has the advantage to visualize also the infundibulum part of the right ventricle (RV). Despite this fact, currently nomograms for sub-costal RV dimensions are lacking. METHODS: We prospectively studied healthy Caucasian Italian children by two-dimensional echocardiography. Measurements included: sub-costal end diastolic basal-apical and latero-lateral diameters, end diastolic and end systolic area, 4 chamber end diastolic and end systolic area and length, end diastolic basal (RV1) and mid-cavity (RV2) diameters...
September 8, 2017: Journal of Cardiology
Michael Spartalis, Eleni Tzatzaki, Antonios Athanasiou, Eleftherios Spartalis
No abstract text is available yet for this article.
September 6, 2017: Journal of Cardiology
Muhammad Imtiaz Ahmad, Candice D Mosley, Wesley T O'Neal, Suzanne E Judd, Leslie A McClure, Virginia J Howard, George Howard, Elsayed Z Soliman
BACKGROUND: Whether smoking increases the risk of atrial fibrillation (AF) remains debatable due to inconsistent reports. METHODS: We examined the association between smoking and incident AF in 11,047 participants from the REasons for Geographic And Racial Differences in Stroke (REGARDS) Study, one of the largest biracial, population-based cohort studies in the USA. Baseline (2003-2007) cigarette smoking status and amount (pack-years) were self-reported. Incident AF was determined by electrocardiography and history of a prior physician diagnosis at a follow-up examination conducted after a median of 10...
September 5, 2017: Journal of Cardiology
Hiroshige Yamabe, Koichi Kaikita, Toshiyuki Matsumura, Atsushi Iwasa, Junjiro Koyama, Takashi Uemura, Yasuhiro Morikami, Ryusuke Tsunoda, Kenji Morihisa, Kazuteru Fujimoto, Ichiro Kajiwara, Kunihiko Matsui, Kenichi Tsujita, Hisao Ogawa
BACKGROUND: Experimental studies suggest that angiotensin II-receptor blockers can influence atrial remodeling and may prevent atrial fibrillation (AF). Therefore, we hypothesized that irbesartan may prevent the recurrence of AF following either catheter ablation or electrical cardioversion of AF. METHODS: Study on the Effect of Irbesartan on Atrial Fibrillation Recurrence in Kumamoto (SILK study) is a prospective, multicenter, randomized, and open-label comparative evaluation of the effects of irbesartan and amlodipine on AF recurrence in hypertensive patients with AF who are scheduled to undergo catheter ablation or electrical cardioversion of AF...
September 5, 2017: Journal of Cardiology
Song Vogue Ahn, Hyeon Chang Kim, Chung Mo Nam, Il Suh
OBJECTIVE: Diabetic women have a greater relative risk of coronary heart disease than diabetic men. However, the sex difference in the effect of fasting serum glucose levels below the diabetic range on the risk of coronary heart disease is unclear. We investigated whether the association between nondiabetic blood glucose levels and the incident risk of coronary heart disease is different between men and women. METHODS: The fasting serum glucose levels and other cardiovascular risk factors at baseline were measured in 159,702 subjects (100,144 men and 59,558 women)...
September 4, 2017: Journal of Cardiology
Noriko Tsuda, Shinya Shiraishi, Fumi Sakamoto, Hideaki Yuki, Koji Ogasawara, Morikatsu Yoshida, Seiji Tomiguchi, Kenichi Tsujita, Yasuyuki Yamashita
BACKGROUND: Chronic kidney disease (CKD) is an independent risk factor for cardiovascular disorders. The aim of this study was to examine whether the quantitatively measured myocardial blood flow (MBF) or myocardial perfusion reserve (MPR), calculated by dynamic single photon emission computed tomography (SPECT) analysis using a cardiac cadmium zinc telluride (CZT) gamma camera, was related to renal dysfunction in patients with normal myocardial perfusion imaging (MPI) findings. METHODS: The study population consisted of 46 patients with CKD and 46 individuals without CKD (controls)...
August 30, 2017: Journal of Cardiology
Tetsu Watanabe, Kaoru Ando, Hyuma Daidoji, Yoichiro Otaki, Shigeo Sugawara, Motoyuki Matsui, Eiichiro Ikeno, Osamu Hirono, Hiroshi Miyawaki, Yoshinori Yashiro, Satoshi Nishiyama, Takanori Arimoto, Hiroki Takahashi, Tetsuro Shishido, Takehiko Miyashita, Takuya Miyamoto, Isao Kubota
BACKGROUND: There is a residual risk of coronary heart disease (CHD) despite intensive statin therapy for secondary prevention. The aim of this study was to investigate whether coronary plaque regression and stabilization are reinforced by the addition of eicosapentaenoic acid (EPA) to high-dose pitavastatin (PTV). METHODS: We enrolled 193 CHD patients who underwent percutaneous coronary intervention (PCI) in six hospitals. Patients were randomly allocated to the PTV group (PTV 4mg/day, n=96) or PTV/EPA group (PTV 4mg/day and EPA 1800mg/day, n=97), and prospectively followed for 6-8 months...
August 29, 2017: Journal of Cardiology
Keun-Ho Park, Myung Ho Jeong
No abstract text is available yet for this article.
August 28, 2017: Journal of Cardiology
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