Abstract:
:Relationships between biventricular pressures, left ventricular shape and paradoxical septal motion in patients with right ventricular pressure overload (RVPO) are unknown. To clarify these relationships, we measured left and right ventricular short-axis dimensions and ventricular pressures using anesthetized open-chest dogs with pulmonary embolizations. With repeated microembolization, right ventricular systolic pressure (RVSP) increased stepwise from a level of 27 mmHg to the maximum value of 72 mmHg. This elevation caused gradual leftward shift of the interventricular septum (IVS) both at end-diastole and end-systole. Further embolization caused collapse (shock: left ventricular systolic pressure: LVSP < 70 mmHg) with a fall in RVSP. In the state of shock, the rise in right ventricular end-diastolic pressure (RVEDP) and fall in left ventricular end-diastolic pressure (LVEDP) were prominent, and the degree of shift of the IVS became significantly greater at end-diastole than at end-systole, resulting in paradoxical motion of the IVS. There were significant linear relationships between the degree of end-diastolic IVS displacement and end-diastolic transseptal pressure (LVEDP-RVEDP), and between the degree of end-systolic IVS displacement and end-systolic transseptal pressure (LVESP-RVESP) throughout the course of repeated pulmonary microembolization even in the state of shock. In conclusion, abnormal movements of the IVS in RVPO patients indicate the presence of a marked decrease in end-diastolic transseptal pressure due to right ventricular failure.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Tanazawa S,Yamashita H,Imamoto T,Obara A,Takashio T,Oumiya H,Inoue H,Onodera Ssubject
Has Abstractpub_date
1992-01-01 00:00:00pages
235-43issue
1eissn
0914-5087issn
1876-4738journal_volume
22pub_type
杂志文章abstract:BACKGROUND:Left atrial (LA) enlargement has been documented to occur in hypertension (HT), and has been an index for evaluating the diastolic function of the left ventricle. Enlargement of the LA is one of the vital factors that induce heart failure and atrial fibrillation (AF) in patients with HT. METHODS AND SUBJECT...
journal_title:Journal of cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jjcc.2012.02.011
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Serum levels of lipoprotein (a) [Lp(a)] have been reported as a residual risk marker for adverse events in patients with coronary artery disease (CAD). However, the prognostic impact of Lp(a) on long-term clinical outcomes among diabetic patients on statin therapy after percutaneous coronary intervention (PC...
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doi:10.1016/j.jjcc.2020.01.013
更新日期:2020-07-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2013.04.001
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVES:Although physicians frequently perform palpation of the apex beat to evaluate left ventricular (LV) size and hypertrophy, the clinical significance of apex beat palpation is still unclear. The introduction of multislice computed tomography (MSCT) has enabled assessment not only of coronary stenoses but also ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2009.11.008
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Cibenzoline, a class Ia antiarrhythmic drug, is useful for reducing the left ventricular pressure gradient (LVPG) in patients with hypertrophic obstructive cardiomyopathy (HOCM). However, chronic effects of cibenzoline on LVPG and left ventricular (LV) remodeling are unknown. METHODS:Forty-one patients with...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2015.05.014
更新日期:2016-03-01 00:00:00
abstract::Despite significant advances in pharmacological treatments, pulmonary arterial hypertension remains an incurable disease with an unreasonably high morbidity and mortality. Although specific pharmacotherapies have shifted the survival curves of patients and improved exercise endurance as well as quality of life, it is ...
journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2015.02.001
更新日期:2015-10-01 00:00:00
abstract::To study the relations of central venous flow velocity (VFV) to cardiac pump function, hepatic venous flow velocity was recorded using Doppler echocardiography in six normal subjects and 47 patients with heart disease, of whom 28 had sinus rhythm and 19, atrial fibrillation. The area under the VFV profile during systo...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2019.01.009
更新日期:2019-05-01 00:00:00
abstract::Failure to control the ventricular rate in atrial fibrillation (AF) can be treated by radiofrequency (RF), ablation or modification of atrioventricular (AV) node. AV nodal ablation with pacemaker and AV nodal modification are associated with significant improvement in symptoms and quality of life. But there is no evid...
journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:
更新日期:1999-03-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2017.11.003
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Third-generation drug-eluting-stents (3rd DES) may improve coronary arterial healing and reduce neoatherosclerosis formation. We evaluated post-stent findings and subsequent vascular healing of 3rd DES by comparing to second-generation drug-eluting-stents (2nd DES) at intermediate-term follow-up using optica...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2020.05.013
更新日期:2020-11-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,meta分析
doi:10.1016/j.jjcc.2017.10.018
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Despite the frequent use of spectral analysis of intravascular ultrasound radiofrequency data (VH(®) IVUS) in clinical studies, the assessment for reproducibility using this with high frequency IVUS remains unexplored. PURPOSE:The aim of this study was to examine the reproducibility of VH IVUS using 45-MHz ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2014.05.004
更新日期:2015-02-01 00:00:00
abstract::Prompt restoration of coronary flow is the principal mechanism by which reperfusion therapy improves survival and other clinical outcomes in patients with acute myocardial infarction. Thrombolytic therapy has been the standard for care over the past decade. The use of accelerated administration of tissue plasminogen a...
journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:
更新日期:1998-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2009.04.004
更新日期:2010-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Left ventricular diastolic dysfunction (LVDD) plays an important role in heart failure with normal left ventricular ejection fraction (LVEF). Obesity is one of the major comorbid conditions of LVDD. Pericardial fat (PF) is an ectopic fat depot with possible paracrine or mechanical effects on the coronary cir...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2012.01.006
更新日期:2012-05-01 00:00:00
abstract::The usefulness of transesophageal Doppler echocardiography (TEE) was assessed in patients with various cardiovascular diseases including 15 patients with dissecting aortic aneurysm (DAA), two with thoracic aneurysm, 16 with ischemic heart disease and 14 with acquired valvular diseases. In dissecting aortic aneurysms, ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Transcatheter aortic valve implantation (TAVI) is a less invasive treatment for elderly patients with aortic stenosis. However, the cost of TAVI is a major issue. This study analyzed the cost effectiveness of TAVI in Japan. METHODS:We developed an economic model to evaluate the quality-adjusted life years (...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2017.10.008
更新日期:2018-03-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2007-04-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
abstract::To elucidate the effects of atrial defibrillation in patients with idiopathic cardiomyopathy, we clinically and echocardiographically assessed 6 patients with hypertrophic cardiomyopathy (HCM) and 7 patients with dilated cardiomyopathy (DCM). Their mean age was 57 +/- 14 years and the mean duration of their atrial fib...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Increased left ventricular (LV) myocardial stiffness may be associated with impaired LV hemodynamics and incident heart failure (HF). However, an indicator that estimates LV myocardial stiffness easily and non-invasively is lacking. The purpose of this study was to determine whether diastolic wall strain (DW...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2017.11.004
更新日期:2018-05-01 00:00:00
abstract::Patients with myocardial infarction (MI) and triple vessel coronary disease generally have poor prognoses. However, it is not known whether there are particular angiographic variables associated with the poor prognosis in MI patients with triple vessel disease. The angiographic variables for poor prognosis were invest...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVES:To determine whether an "obesity paradox" on post-coronary artery bypass grafting (CABG) mortality exists, we abstracted exclusively adjusted odds ratios (ORs) and/or hazard ratios (HRs) for mortality from each study, and then combined them in a meta-analysis. METHODS:MEDLINE and EMBASE were searched throug...
journal_title:Journal of cardiology
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jjcc.2015.09.015
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Coronary artery calcium (CAC) is associated with a risk of coronary heart disease. The prevalence and distribution of the CAC score have been examined in Western countries, but few studies have been performed in Asia, and especially in Japan. The goal of this study was to investigate CAC scores in an asympto...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2015.06.010
更新日期:2016-05-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.jjcc.2014.09.004
更新日期:2015-08-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::There have been several case reports, a total of 22 up to the present, of toxoplasma pericarditis. Out of them, in only a few cases the diagnosis was properly made with a proof of the microscopic presence of Toxoplasma gondii. This is the first report of toxoplasma pericarditis in which the presence of Toxoplasma gond...
journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Coronary collateral circulation (CCC) has been demonstrated to be impaired in patients with type 2 diabetes mellitus which is characterized by insulin resistance. In this study, our purpose was to find out a possible relationship between CCC and non-alcoholic fatty liver disease (NAFLD), which is...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2012.05.003
更新日期:2012-09-01 00:00:00