Abstract:
:Ventricular late potentials are obtained by signal averaging of surface electrocardiograms. Late potentials have been reported to be affected by body size or left ventricular mass. However, the effect of subadipose tissue, which is known to influence QRS amplitudes of surface ECG, on the variables of late potentials has not been evaluated. The relationships between the variables of late potentials and various obesity indices were assessed in 45 men, aged 24-38 years, without structural heart disease and bundle branch blocks. QRS duration, root mean square voltage in the last 40 ms and low-amplitude signals < 40 microV were obtained by signal-averaged ECG. Left ventricular mass was determined by echocardiography. QRS duration and root mean square voltage had no correlation with body height, weight, body mass index, sum of skin folds (triceps and subscapular) or left ventricular mass. Positive linear correlations were found between low-amplitude signals and weight (r = 0.48, p < 0.002) body mass index (r = 0.54, p < 0.002), sum of skin folds (r = 0.57, p < 0.002), percent body mass index (r = 0.54, p < 0.002). Subadipose tissue may shift the onset of the 40-microV point of low-amplitude signals to the left with a consequent prolongation of low-amplitude signals by attenuation of the QRS complex. These data suggest that the use of low-amplitude signals alone or as a combination in an obese population for the definition of positive late potentials is inappropriate. The low-amplitude signal has to be used with caution in obese patients.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Cardiologyjournal_title
Cardiologyauthors
Masui A,Tsuji H,Tamura K,Sugiura T,Matsui Y,Iwasaka T,Inada Mdoi
10.1159/000175854subject
Has Abstractpub_date
1993-01-01 00:00:00pages
51-5issue
1eissn
0008-6312issn
1421-9751journal_volume
82pub_type
杂志文章相关文献
CARDIOLOGY文献大全abstract::A 50-year-old man with intermittent ventricular parasystolic bigeminy is reported in whom the parasystolic focus was protected from late intervening sinus impulses. This is the first report to suggest the presence of protection due to interference in parasystolic bigeminy. The findings in this case suggest that when a...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000174583
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:The shift toward a preventative approach in medical aftercare of congenital heart disease (CHD) patients has led to encouragement of regular physical activity (PA) in this patient population. Objective measures are crucial in accurately displaying PA levels and have increasingly found their way into clinical...
journal_title:Cardiology
pub_type:
doi:10.1159/000512186
更新日期:2021-01-13 00:00:00
abstract::The EKG response to exercise and the working capacity in a group of 70 patients with positive serology for Chagas' disease has been determined by stress testing on a bicycle-ergometer, in order to establish the usefulness of such a test in the early diagnosis of Chagas' cardiomyopathy. The exercise EKG provides inform...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000169915
更新日期:1978-01-01 00:00:00
abstract:OBJECTIVE:Atrial fibrosis plays a critical role in atrial fibrillation (AF). A key event in the pathogenesis of fibrosis is the activation of fibroblasts (FBs) into myofibroblasts (MFBs). Paracrine factors released from MFBs lead to ion channel expression changes in cardiomyocytes (CMs). Downregulation of L-type calciu...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000505641
更新日期:2020-01-01 00:00:00
abstract::In an attempt to determine factors that are related to atrial natriuretic factor (ANF) release in normal subjects, 10 male volunteers were studied at rest supine, sitting and during treadmill exercise. Echocardiography was used to measure atrial volumes, and a Swan-Ganz catheter was used to measure right atrial pressu...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000174635
更新日期:1990-01-01 00:00:00
abstract:CONTEXT:Much emphasis has been placed on a ticagrelor-aspirin (ASA) interaction in the Platelet Inhibition and Patient Outcomes (PLATO) trial, despite this particular interaction being inconclusive. However, a potential ticagrelor-statin interplay occurred and may be important in PLATO, especially considering the remar...
journal_title:Cardiology
pub_type: 社论
doi:10.1159/000346151
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:To substitute the stroke volume index (SVi) with flow rate (FR) in the hemodynamic classification of severe aortic stenosis (AS) with preserved ejection fraction (EF), in order to evaluate its prognostic value. METHODS:A total of 529 patients (78.8 ± 9.8 years old, 44.1% males) with isolated severe AS (aort...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000493165
更新日期:2018-01-01 00:00:00
abstract::Advances in echocardiography have made possible simple, noninvasive evaluation of the heart. We report the echocardiographic findings in a case of intrapericardial bronchogenic cyst. The patient, a 36-year-old woman, was hospitalized because of pericarditis. Echocardiography revealed a large unilocular cystic structur...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000174616
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Conventional cineradiology has been used clinically to detect partially broken outlet struts (single leg separations, SLSs) in normally functioning Björk-Shiley convexo-concave (C/C) heart valves. The value of radiographic screening has, however, been debated in the medical literature. This study uses the sa...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000006887
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Previous studies using transesophageal echocardiography (TEE) report an association of valvular heart disease (VHD) with cerebral infarcts and central neuropsychiatric systemic lupus erythematosus (NPSLE). However, TEE cannot be routinely used. AIM:To determine if VHD detected by transthoracic echocardiogra...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000099104
更新日期:2007-01-01 00:00:00
abstract::A new method is presented for decomposition of 99mTc-DTPA renal transfer functions (TF) into their capillary and tubular parts. Amplitudes and mean transit times of both parts were calculated and used for quantitative evaluation of renal perfusion, extraction and transport in 21 patients with renal artery stenosis. Th...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000173943
更新日期:1985-01-01 00:00:00
abstract::An abundance of clinical trial data indicates that lipid-regulating therapy reduces coronary artery disease morbidity and mortality. In patients with established coronary artery disease, lipid regulation has been shown to attenuate progression of atherosclerosis and extend survival. In primary prevention, a clear bene...
journal_title:Cardiology
pub_type: 杂志文章,评审
doi:10.1159/000177138
更新日期:1996-11-01 00:00:00
abstract::Carvedilol is a multiple-action cardiovascular agent that is a nonselective beta-adrenoceptor antagonist and a vasodilator. beta-Adrenoceptor antagonists reduce myocardial work, secondary to reductions in heart rate and contractility, both in animals and in humans. For these reasons, carvedilol may improve survival of...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000175930
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:The objective was to evaluate the effect of hormone replacement therapy (HRT) on plasma homocysteine levels in postmenopausal women with coronary artery disease (CAD) and to investigate associations of homocysteine to other cardiovascular risk factors. METHODS:The women in this single-center, controlled, and...
journal_title:Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000064667
更新日期:2002-01-01 00:00:00
abstract::Atherosclerosis is the most frequent cause of occlusion of aortocoronary saphenous vein grafts between 5 and 10 years after coronary artery bypass surgery. The typical atherosclerotic plaque appears between 1 and 3 years after operation and, at a mean of 5 years, histologic changes of atherosclerosis are present in 21...
journal_title:Cardiology
pub_type: 杂志文章,评审
doi:10.1159/000174019
更新日期:1986-01-01 00:00:00
abstract::Lower extremity atherosclerosis results in significant morbidity in women, particularly in women following the menopause. Up to 25% of women aged 55 to 74 years are affected by this disease. When noninvasive testing is used to determine the prevalence of lower extremity atherosclerosis, and men in this age group are e...
journal_title:Cardiology
pub_type: 杂志文章,评审
doi:10.1159/000176899
更新日期:1995-01-01 00:00:00
abstract::The acute effects of therapeutic doses of intravenous tolbutamide and glibornuride on the systolic time intervals (QS2c, LVETc, PEPc and PEP/LVET) were examined in 5 healthy volunteers. Blood sugar was maintained constant throughout the study. No significant changes of these intervals as well as of heart rate and bloo...
journal_title:Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000170617
更新日期:1979-01-01 00:00:00
abstract::Silent myocardial ischemia is a marker in patients with coronary artery disease identifying those at high risk for subsequent cardiac events. During provoked myocardial ischemia some patients with angina pectoris do not develop chest pain. Are there clinical, angiographic or electrocardiographic differences between pa...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000175882
更新日期:1993-01-01 00:00:00
abstract::The aim of our study was to examine the pathophysiology of ST depression (STD) in leads V1-V3 in the setting of inferior ST elevation myocardial infarction (iSTEMI) through the perspective of cardiac magnetic resonance (CMR). METHODS:Differences in myocardial area at risk (MaR), infarct size, ejection fraction and my...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000491745
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Digital health is rapidly entering clinical practice in cardiology. Estonia is one of the leading nations in implementing digital nationwide solutions. Recently, the European Society of Cardiology organized the 1st Summit on Digital Health in Tallinn, which provided the opportunity to discuss various aspects...
journal_title:Cardiology
pub_type: 杂志文章,评审
doi:10.1159/000504564
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:The association between height and cardiovascular disease (CVD) has been reported in epidemiological studies for decades; however, the mechanism for this relationship is still unclear. We previously reported that dyslipidemia was associated with adult height in Korean men without CVD. OBJECTIVES:This study ...
journal_title:Cardiology
pub_type: 新闻
doi:10.1159/000509631
更新日期:2020-01-01 00:00:00
abstract::The impact of the duration of atrioventricular (AV) delay on obstruction in hypertrophic cardiomyopathy was evaluated in 12 patients by cardiac catheterization, and in 8 of them also by Doppler echocardiography. The AV delay was programmed in random order at 125, 100 and 75 ms in the invasive study and at 120, 100 and...
journal_title:Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000006736
更新日期:1998-01-01 00:00:00
abstract::In this first clinical report of an idiopathic familial persistently short QT interval (QTI), we describe three members of one family (a 17-year-old female, her 21-year-old brother, and their 51-year-old mother) demonstrating this ECG phenomenon, associated in the 17-year-old with several episodes of paroxysmal atrial...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000047299
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:To compare weight loss efficacy, safety and tolerability of sibutramine and placebo in mildly to moderately obese hypertensive subjects; to assess the effect of weight loss on blood pressure. DESIGN:Randomized, double-blind, parallel-group; 3-week placebo run-in and 12-week treatment phase. SETTING:Nine ho...
journal_title:Cardiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1159/000047310
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to retrospectively analyze risk factors, diagnosis and management of gastrointestinal (GI) complications following cardiac operations. METHODS:Patients who developed GI complications after a cardiac operation were studied. Anesthesia protocols, techniques of cardiac surgery, potenti...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000119696
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Women are underrepresented in sacubitril/valsartan (SV) clinical trials. The aim of this study was to assess sex-specific differences in efficacy, tolerability, and safety of SV in real-world heart failure with reduced ejection fraction (HFrEF) patients. METHODS:A prospective registry in 10 centers includin...
journal_title:Cardiology
pub_type: 杂志文章,多中心研究
doi:10.1159/000498984
更新日期:2019-01-01 00:00:00
abstract::Water immersion-induced skin wrinkling (WISW) is dependent on intact peripheral sympathetic function. WISW was hypothesized to reflect autonomic function in subjects without peripheral neuropathy. We prospectively studied 70 healthy subjects (aged 31 ± 8 years, 63% females) without cardiovascular risk factors or neuro...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000316043
更新日期:2010-01-01 00:00:00
abstract::A double-chambered right ventricle (DCRV) is an uncommon congenital anomaly: the right ventricle (RV) is divided into two chambers due to the presence of an abnormally located muscular band or anomalous muscle hypertrophy in the subinfundibular part of RV outflow tract, with a variable degree of obstruction. Generally...
journal_title:Cardiology
pub_type: 杂志文章,评审
doi:10.1159/000444743
更新日期:2016-01-01 00:00:00
abstract::This prospective investigation was conducted in an attempt to identify noninvasive predictors of mortality for patients with Chagas' heart disease through a multivariate stepwise logistic regression study. Fifty-six patients with a positive complement fixation test for Chagas' disease were followed up at the Cardiomyo...
journal_title:Cardiology
pub_type: 杂志文章
doi:10.1159/000176409
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:Risk factors like hypertension, diabetes mellitus, dyslipidemia and smoking contribute to the pathogenesis of atherothrombosis. We investigated whether the multiplicity of risk factors for atherothrombosis is associated with leukocyte activation. METHODS:We examined the availability of CD11b/CD18 antigen on ...
journal_title:Cardiology
pub_type: 临床试验,杂志文章
doi:10.1159/000007041
更新日期:2000-01-01 00:00:00