Preprocedural valvuloarterial impedance as a predictor of left ventricular ejection fraction improvement after transcatheter aortic valve replacement in patients with reduced left ventricular ejection fraction.

abstract：:The purpose of this study was to evaluate the surgical results of papillary muscle approximation (PMA) and papillary muscle relocation (PMR) for functional mitral regurgitation (FMR) and to compare the effects of both procedures on the change in mitral regurgitation (MR) and echocardiogram parameters associated with t...

journal_title：Heart and vessels

authors： Furukawa K,Yano M,Nakamura E,Matsuyama M,Nishimura M,Kawagoe K,Nakamura K

更新日期：2018-01-01 00:00:00

abstract：:We have theoretically proposed "systolic pressure-volume area" (PVA) as a measure of total mechanical energy generated by ventricular contraction. We then experimentally showed that PVA closely correlates with left ventricular oxygen consumption (Vo2) regardless of ventricular loading conditions in a stable contractil...

journal_title：Heart and vessels

authors： Suga H,Goto Y,Futaki S,Kawaguchi O,Yaku H,Hata K,Takasago T

更新日期：1991-01-01 00:00:00

abstract：:We examined the effect of dialyzing oxidized low-density lipoprotein (oLDL) against Krebs-Ringer solution, in the absence (yielding d-oLDL) or presence (yielding EDTA-oLDL) of ethylenediamine tetraacetic acid (EDTA), to investigate the mechanism that underlies the inhibition of endothelium-dependent relaxation (EDR) b...

journal_title：Heart and vessels

authors： Hayashi T,Ishikawa T,Kuzuya M,Naito M,Yamada K,Asai K,Hidaka H,Iguchi A

更新日期：1994-01-01 00:00:00

abstract：:Wire crossing of a chronic total coronary occlusion (CTO) is time consuming and limited by the amount of contrast agent and time of radiation exposure. Magnetic wire navigation (MWN) might accelerate wire crossing by maintaining a coaxial vessel orientation. This study compares MWN with the conventional approach for r...

journal_title：Heart and vessels

authors： Roth C,Berger R,Scherzer S,Krenn L,Gangl C,Dalos D,Delle-Karth G,Neunteufl T

更新日期：2016-08-01 00:00:00

abstract：:The aim of the study was to evaluate systemic right ventricular (RV) dyssynchrony in patients with congenitally corrected transposition of the great arteries (CCTGA) and transposition of the great arteries (TGA) with New York Heart Association functional class (NYHA FC) < III. We used cardiac magnetic resonance (CMR) ...

journal_title：Heart and vessels

authors： Shiina Y,Inai K,Takahashi T,Taniguchi K,Watanabe E,Fukushima K,Niwa K,Nagao M

更新日期：2018-09-01 00:00:00

abstract：:This study aimed to examine whether alpha-human atrial natriuretic peptide (alpha-hANP) alters cardiac dimensions in humans. Left atrial (LA) and left ventricular diastolic (LV) diameters were measured by echocardiography at control and with lower body negative pressure (LBNP) at -10 and -20 mmHg during intravenous (I...

journal_title：Heart and vessels

authors： Imaizumi T,Takeshita A,Yoshida M,Suzuki S,Ando S,Hirooka Y,Nakamura M

更新日期：1990-01-01 00:00:00

abstract：:We examined mRNA expression of the clock genes (Per1, Per2, and Bmal1) and PAI-1 (plasminogen activator inhibitor-1) after aldosterone treatment every 4 h up to 48 h in H9c2 cardiomyoblasts by reverse transcription-polymerase chain reaction. To block the MR (mineralocorticoid receptor), the MR antagonist, spironolacto...

journal_title：Heart and vessels

authors： Tanaka K,Ashizawa N,Kawano H,Sato O,Seto S,Nishihara E,Terazono H,Isomoto S,Shinohara K,Yano K

更新日期：2007-07-01 00:00:00

abstract：:Due to the complex profile of atherosclerotic risk factors, an integrated analysis of a specific individual is difficult. Endothelial function reflects a composite of various risk factors, and may be used as an optimal tool to estimate the overall atherosclerotic risk. In this study, we investigated the value of digit...

journal_title：Heart and vessels

authors： Kang J,Kim HL,Seo JB,Lee JY,Moon MK,Chung WY

更新日期：2018-07-01 00:00:00

abstract：:Primary myocardial involvement is common in systemic sclerosis (SSc). We evaluated the atrial and ventricular electromechanical characteristics by using tissue Doppler echocardiography in SSc patients with subclinical cardiac involvement. Twenty-seven consecutive patients (24 women; mean age +/- SD 49.9 +/- 11.3 years...

journal_title：Heart and vessels

authors： Karaahmet T,Tigen K,Gurel E,Takir M,Avci A,Cevik C,Pala S,Dundar C,Basaran Y

更新日期：2010-05-01 00:00:00

abstract：:The records of 153 patients with doubly committed subarterial ventricular septal defect (DCVSD) who underwent intracardiac repair were analyzed to evaluate factors responsible for aortic valve leaflet deformity. The patients were divided into two groups according to their echocardiographic and angiographic features as...

journal_title：Heart and vessels

authors： Kobayashi J,Koike K,Senzaki H,Kobayashi T,Tsunemoto M,Ishizawa A,Ohta Y,Shimada M,Omoto R

更新日期：1999-01-01 00:00:00

abstract：:We developed a new individually customized contrast-injection protocol for coronary computed tomography (CT) angiography based on the time-attenuation response in a test bolus, and investigated its clinical applicability. We scanned 60 patients with suspected coronary diseases using a 64-detector CT scanner, who were ...

journal_title：Heart and vessels

authors： Kidoh M,Nakaura T,Nakamura S,Awai K,Utsunomiya D,Namimoto T,Harada K,Yamashita Y

更新日期：2014-03-01 00:00:00

abstract：:It is known that the heart of an athlete has been physiologically adapted by prolonged training. There are a large number of echocardiographic studies which have focused on left ventricular wall thickness and dilatation, but there are few studies concerning right heart function in the athlete's heart. The aim of this ...

journal_title：Heart and vessels

authors： Erol MK,Karakelleoglu S

更新日期：2002-07-01 00:00:00

abstract：:Myocardial fibrosis and microvascular dysfunction are key determinants of outcome in heart failure (HF); we examined their relationship in patients with HF. Our study included 61 consecutive patients with HF but without coronary stenosis. All underwent gadolinium-enhanced cardiac magnetic resonance to evaluate late ga...

journal_title：Heart and vessels

authors： Uemura T,Yamamuro M,Kaikita K,Takashio S,Utsunomiya D,Hirakawa K,Nakayama M,Sakamoto K,Yamamoto E,Tsujita K,Kojima S,Hokimoto S,Yamashita Y,Ogawa H

更新日期：2016-12-01 00:00:00

abstract：:The possibility of minimizing organ damage following cardiopulmonary bypass (CPB) was examined. In the control group, n = 21, upon completion of CPB, elevation of the lysosomal enzyme beta-glucuronidase, which is a sensitive indicator of cellular damage, was affected by the concentration of granulocyte elastase (r = 0...

journal_title：Heart and vessels

authors： Hashimoto K,Nomura K,Nakano M,Sasaki T,Kurosawa H

更新日期：1993-01-01 00:00:00

abstract：:Taurine (2-aminoethanesulfonic acid) is a potent antioxidant and inhibits cell apoptosis in ischemic reperfusion injury. In this study we evaluated whether addition of taurine to St. Thomas' cardioplegic solution enhances its myocardial protective effects in prolonged hypothermic heart preservation in rats. Hearts iso...

journal_title：Heart and vessels

authors： Oriyanhan W,Yamazaki K,Miwa S,Takaba K,Ikeda T,Komeda M

更新日期：2005-11-01 00:00:00

abstract：:Angiotensin II type 2 receptor (AT2R) has been proved to be involved in a cardioprotective role, but only a few studies have addressed the association of AT2R-genotype with this role. Whether the AT2R genotype is associated with hypertension is controversial. The aim of the study was to explore the information of sing...

journal_title：Heart and vessels

authors： Zhang M,Ma H,Wang BS,Zhao YZ

更新日期：2006-03-01 00:00:00

abstract：:Coronary artery calcification (CAC) as measured by computed tomography is a strong predictor of coronary artery disease. The brachial intima-media thickness (IMT) was recently reported to be associated with cardiovascular risk factors. This study investigated the association of brachial IMT with CAC, which is a marker...

journal_title：Heart and vessels

authors： Ono T,Miyoshi T,Ohno Y,Osawa K,Takaya Y,Miki T,Ichikawa K,Ito H

更新日期：2019-09-01 00:00:00

abstract：:Although heparin allergy is a rare but well-documented entity, anticoagulation management for cardiac surgery in patients with the heparin allergy has not been established due to its rarity. Here we report a case that shows our anticoagulation strategy during a coronary bypass operation. A 67-year-old man with unstabl...

journal_title：Heart and vessels

authors： Ohno H,Higashidate M,Yokosuka T

更新日期：2003-03-01 00:00:00

abstract：:We clarified that the set of the isotropic component (T) of wall tension and the area (A) of a selected region of the left ventricular wall expresses the regional work with sufficient accuracy. The area surrounded by the locus of the T-A relation in the T-A plane is approximately equal to the real work done by that re...

journal_title：Heart and vessels

authors： Sugawara M,Tamiya K,Nakano K

更新日期：1985-08-01 00:00:00

abstract：:Contrast echocardiography with sonicated radiographic contrast agents has been used for the qualitative and quantitative determination of myocardial blood flow. One major problem has been the size of the microbubbles since only bubbles smaller than 8 microns are expected to pass the capillary bed and larger bubbles ma...

journal_title：Heart and vessels

authors： Mayer IV,Lazarov MP,Utzinger U,Freiburghaus AU,Hess OM

更新日期：1995-01-01 00:00:00

abstract：:Females have increase in-hospital mortality and poorer outcomes following coronary artery bypass grafting (CABG). Biological differences in the reactivity of the graft conduits to circulating catecholamine may contribute to this sex difference. This study examined sex differences in the vasoconstrictor responses of in...

journal_title：Heart and vessels

authors： Jaghoori A,Lamin V,Jacobczak R,Worthington M,Edwards J,Viana F,Stuklis R,Wilson DP,Beltrame JF

更新日期：2020-03-01 00:00:00

abstract：:Etiopathogenesis of coronary artery ectasia (CAE), which is defined as abnormal dilatation of a segment of the coronary artery to 1.5 times of an adjacent normal coronary artery segment, is unclear. However, it is speculated that CAE develops in the atherosclerosis process through degeneration of coronary artery media...

journal_title：Heart and vessels

authors： Dagli N,Ozturk U,Karaca I,Yavuzkir M,Koca S,Akbulut H,Balin M

更新日期：2009-03-01 00:00:00

abstract：:We recently reported that preoperative endothelial dysfunction [i.e., reactive hyperemia index (RHI) ≤ 1.64] predicted short-term postoperative adverse events in patients undergoing cardiovascular surgery. However, the relationship between preoperative RHI and long-term cardiovascular risk in these patients is unclear...

journal_title：Heart and vessels

authors： Saito Y,Kitahara H,Matsumiya G,Kobayashi Y

更新日期：2019-02-01 00:00:00

abstract：:A 54-year-old man with prior inferior myocardial infarction suffered from monomorphic ventricular tachycardia (VT) with narrow QRS complex of 120 ms. During VT, a fragmented prepotential preceding QRS onset by 30 ms at the right ventricular posterior septum and a late diastolic potential preceding QRS onset by 70 ms a...

journal_title：Heart and vessels

authors： Sakamoto T,Fujiki A,Nakatani Y,Sakabe M,Mizumaki K,Inoue H

更新日期：2010-03-01 00:00:00

abstract：:Distal anastomosis technique affects graft patency and long-term outcomes in coronary artery bypass grafting, however, there is no standard for the appropriate length of distal anastomosis. The purpose of this study is to evaluate whether longer distal anastomosis provides higher quality of distal anastomosis and bett...

journal_title：Heart and vessels

authors： Tsukui H,Shinke M,Park YK,Yamazaki K

更新日期：2017-01-01 00:00:00

abstract：:During cardiopulmonary bypass (CPB) mechanical stress and the contact of blood with artificial surfaces lead to the activation of pro- and anticoagulant systems and the complement cascade, and to changes in cellular components. This phenomenon causes the "postperfusion-syndrome", with leukocytosis, increased capillary...

journal_title：Heart and vessels

authors： Grossmann R,Babin-Ebell J,Misoph M,Schwender S,Neukam K,Hickethier T,Elert O,Keller F

更新日期：1996-01-01 00:00:00

abstract：:Controlling blood pressure is essential for prevention of events after acute aortic dissection (AAD). However, in some instances a cardiac event occurs despite controlled blood pressure, and its prediction is difficult. We continuously monitored C-reactive protein (CRP) in patients receiving medical treatment for AAD ...

journal_title：Heart and vessels

authors： Okina N,Ohuchida M,Takeuchi T,Fujiyama T,Satoh A,Sakamoto T,Adachi H,Imaizumi T

更新日期：2013-05-01 00:00:00

abstract：:The inotropic effects of 5-hydroxytryptamine (5-HT) on mammalian heart muscles were investigated. 5-HT (10(-8)-10(-3)M) produced increases in the contractile tension of atrial and ventricular muscles isolated from guinea pigs, Japanese monkeys, and humans, but not in rat heart preparations. The maximum percent increas...

journal_title：Heart and vessels

authors： Zaizen H,Imanishi S,Nasu M,Arita M

更新日期：1996-01-01 00:00:00

abstract：:Resting bradycardia is an important symptom for early diagnosis of anorexia nervosa (AN) during weight loss, and it improves with body-weight recovery. However, chronotropic incompetence (CI) in exercise is observed in some patients with AN despite amelioration of resting bradycardia in the recovery phase. We examined...

journal_title：Heart and vessels

authors： Yoshida Y,Maeda J,Fukushima H,Tokita N,Yamagishi H,Tokumura M

更新日期：2019-04-01 00:00:00

abstract：:Myocardial perfusion and perfusion reserve are diminished in patients with atrial fibrillation (AF). Phase-contrast (PC) cine magnetic resonance imaging (MRI) of the coronary sinus serves as a non-invasive means of quantifying coronary flow reserve (CFR) without any radioactive tracer. The present study aimed to evalu...

journal_title：Heart and vessels

authors： Sugimoto Y,Kato S,Fukui K,Iwasawa T,Utsunomiya D,Kimura K,Tamura K

更新日期：2021-01-23 00:00:00