Abstract:
:Experimental demonstration that the external phonocardiogram is similar to the third derivative (rate of acceleration) of LV pressure, and that catecholamines cause a similar increase of the early systolic wave of the first derivative of LV pressure and of S1 prompted a study of the first sound during stress testing. Following a previous study with different types of ergometers, the present investigation was based on records of 10 normal, young volunteers, taken during treadmill exercise while a phonocardiogram was recorded at the apex. The first heart sound increased in all of them averaging an eightfold increase during maximal stress. Comparison of the changes in amplitude of S1 with changes of heart rate, blood pressure, and cardiac output revealed that the first showed the most constant proportional increase while sometimes one or the other parameter showed only a moderate change. The possible causes of this apparent lack of reaction is discussed. The importance of the first sound as an index of contractility is stressed, and the suggestion of a routine study of this index in cardiac patients submitted to stress tests is advanced.
journal_name
Acta Cardioljournal_title
Acta cardiologicaauthors
Luisada A,Singhal A,Knighten Vsubject
Has Abstractpub_date
1986-01-01 00:00:00pages
31-9issue
1eissn
0001-5385issn
1784-973Xjournal_volume
41pub_type
杂志文章abstract:OBJECTIVE:This study sought to examine the use of treatments at discharge in patients hospitalized for myocardial infarction in a French region. METHODS AND RESULTS:Data from 2,102 patients discharged after myocardial infarction were prospectively collected at 48 university, community, and private hospitals in three d...
journal_title:Acta cardiologica
pub_type: 杂志文章,多中心研究
doi:10.2143/AC.56.1.2005589
更新日期:2001-02-01 00:00:00
abstract:AIM:The purpose of this study was to investigate the role of oxidant stress in the clinical process and pathogenesis of acute rheumatic fever (ARF). MATERIAL AND METHODS:The study included 33 children with ARF and 20 healthy control subjects. The diagnosis of ARF was established according to the Jones Criteria. Malond...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.65.1.2045889
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:Cardiac computed tomography (CT) and conventional biplane ventriculography are established methods for the determination of ventricular function. Recently dual source CT was introduced for cardiac CT scanning providing a temporal resolution of 83 ms independent of the patient's heart rate. The purpose of this...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.64.3.2038015
更新日期:2009-06-01 00:00:00
abstract::Meningitis due to Neisseria meningitidis occurred in a young man. On admission, he was in septic shock and the electrocardiogram revealed convex upwards ST-segment elevation in inferior and lateral leads. Rapid and complete normalisation of the ECG was observed and the patient had a favourable evolution with intensive...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.56.5.2005695
更新日期:2001-10-01 00:00:00
abstract::We present the case of a young woman who developed a cerebrovascular accident due to a spontaneous internal carotid artery dissection. We stress the importance of clinical clues to diagnosis: ipsilateral facial pain and a partial Horner's syndrome are the most frequent clinical manifestations. Compared to patients wit...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.62.5.2023422
更新日期:2007-10-01 00:00:00
abstract::A definitive diagnosis in patients with syncope is often problematic if the cause is not evident after initial clinical assessment. The cause of syncope may be not established due to the infrequent, episodic occurrence. A symptom-rhythm correlation is frequently an unattainable gold standard in many patients. The impl...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVES:The primary aim of the study was to investigate whether there is a difference in plasma B-type natriuretic peptide (BNP) levels among the left ventricular systolic dysfunction caused by different types of heart disease. METHODS AND RESULTS:Plasma BNP was measured in patients with left ventricular systolic d...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.60.3.2005008
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:The intima-media thickness (IMT) of the carotid artery is dependent on the risk factor load during life and correlates well with the degree of atherosclerosis, also in other vascular beds. METHODS:We reviewed our database of IMT measurements, from January 2002 to February 2007. We compared the mean IMT value...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.63.3.1020306
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:The presence of adhesions after heart operations increases the risk of life-threatening damage to the heart and extracardiac grafts. Infections, tissue injury and inflammations are suspected aetiologic agents. The main purpose of our study is to evaluate the effect of an antiinflammatory agent piroxicam on t...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.62.6.2024014
更新日期:2007-12-01 00:00:00
abstract::The pharmacokinetic parameters for a two compartment open model were defined for six patients receiving a wide range of Digoxin doses. It was demonstrated that the two compartment model is a valid one to use for Digoxin pharmacokinetics. This model is an useful concept because it can explain the necessity to vary Digo...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract:OBJECTIVE:In coronary artery disease, the implementation of a cardiac rehabilitation (CR) programme favourably affects cardiovascular prognosis. However, it remains uncertain whether patients benefit to a similar extent from CR after coronary artery bypass graft surgery (CABG) or percutaneous coronary intervention (PCI...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.64.5.2042694
更新日期:2009-10-01 00:00:00
abstract:UNLABELLED:The aim of study was to determine the significance of the best echocardiographic parameters for assessing the severity of mitral regurgitation (MR). METHODS:The study population consisted of 107 patients, mean age 52 +/- 7 y with chronic isolated non-ischaemic MR. Quantification of the MR was performed usin...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.64.2.2036136
更新日期:2009-04-01 00:00:00
abstract::After D.C. countershock to terminate cardiac arrhythmias, in 3 out of 8 patients studied, an increase in both plasma myoglobin (Mb) and CK-MB (assessed by radioimmunoassay) was found. In 2 patients there was an increase of only plasma Mb and in 1 an increase of only CK-MB. In 2 cases no increase of either parameters w...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND AND AIM:Decreased left ventricular mass index in anorexia nervosa is amply reported. The aim of this study is to identify non-burdensome predictors of reduced left yentricular mass/height (cLVM) in a cohort of adolescent restrictive anorexic girls. METHODS:This is a retrospective study of all anorexic girls...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/ac.70.4.3094647
更新日期:2015-08-01 00:00:00
abstract::Objective In modern cardiology practice, implantation of cardiac electronic devices in patients taking anticoagulant or antiplatelet therapy is a common clinical scenario. Bleeding complications are of particular concern in this patient population and pocket haematoma is one of the most frequent complications. We soug...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/00015385.2017.1281539
更新日期:2017-02-01 00:00:00
abstract::Real-time two-dimensional echocardiographic studies of the mitral valve in short-axis view were obtained from 10 normal subjects. Stop-action frames of the video-taped echocardiograms were then photographed to obtain diastolic cross-sectional images of the valve at maximal opening. Tracings from the interior of the le...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVE:A prospective randomized multicentre pilot trial, comparing stenting with balloon angioplasty as a treatment for coronary lesions, located in a bifurcation was performed. METHODS AND RESULTS:After balloon dilatation, with a < 30% residual stenosis in the main vessel and < 50% residual stenosis in the side br...
journal_title:Acta cardiologica
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.2143/AC.60.4.2004986
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVE:B-type natriuretic peptide (BNP) has diagnostic and prognostic value in a wide variety of cardiac disorders including heart failure and acute coronary syndromes. We aimed to evaluate the prognostic value of baseline and post-procedural BNP levels in predicting major adverse cardiac events (MACE) in stable cor...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.63.1.2025331
更新日期:2008-02-01 00:00:00
abstract::Nineteen asymptomatic patients affected by isolated chronic aortic regurgitation received 20 mg of nifedipine sublingually: the acute hemodynamic effects of nifedipine were evaluated by combined cross-sectional and Doppler echocardiography. To assess variations in the regurgitant flow volume, the flow volume across th...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::Vasoconstrictory responses to noradrenaline (NA) or high potassium chloride (130 mM) usually show a biphasic behaviour: an initial peak is followed by a lower steady state level. The influence of three beta-sympatholytic agents (propranolol, pindolol, practolol) and a "Ca-antagonist" (verapamil) on this particular beh...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::The aim of our study is to evaluate the prognostic value of heart rate turbulence and heart rate variability in children with dilated cardiomyopathy (DCM). Twenty-five children with DCM and 24 age- and sex-matched healthy children who were admitted between January 2002 and September 2004, enrolled in this prospective ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.62.1.2019368
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:The effects of cigarette smoking on the circadian rhythm of heart rate variability (HRV) are not known. METHODS:We studied the effects of cigarette smoking on the circadian rhythm of HRV in 24 smoking and 21 non-smoking healthy subjects. Twenty-four hour ambulatory electrocardiograms were recorded and time ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.55.5.2005757
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:The metabolic syndrome is associated with increased risk of cardiovascular disease. It is important to examine the relation of the metabolic syndrome with the early stages of atherosclerosis. We sought to determine the impact of the metabolic syndrome, defined with International Diabetes Federation criteria, ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.65.3.2050348
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVES:The role of adenosine as a cardioprotective agent is well known and recent experimental studies suggest that impairment of adenosine-related signal transduction contributes to the pathophysiology of chronic heart failure. The recent observation of an association between ADA, genetic polymorphism and coronary...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/ac.69.1.3011343
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVES:The objective of this study is to evaluate the prevalence of HR2 polymorphism among patients with pulmonary embolism (PE) and healthy subjects. BACKGROUND:Polymorphism in the factor V gene named HR2 has been described as a possible risk factor for venous thromboembolism (VTE) development. Contradictive resu...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.70.6.3120184
更新日期:2015-12-01 00:00:00
abstract::Sixteen patients were examined hemodynamically with echocardiography, calibrated apexcardiography, and systolic time intervals before treatment, after 1 week treatment with amiodarone 600 mg daily and after 2-4 months treatment with 300 mg daily. During the treatment thyroid function was controlled. The echocardiogram...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::The combination of coarctation of the aorta in the presence of severe aortic insufficiency poses a serious clinical problem. Although successful single- and two-stage repair for combined coarctation in the presence of severe aortic regurgitation has been described, the surgical management of this lesion remains partic...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Pulmonary dissemination of a cardiac cyst is a rare condition. In the present study, we report a case of a 20-year-old patient with cardiac hydatosis located in the interventricular septum, which was previously diagnosed and treated as pulmonary hydatid disease. Diagnosis was made by spiral computed tomography and tre...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.58.5.2005309
更新日期:2003-10-01 00:00:00
abstract::Hereditary diseases under the age of 35 are the most common underlying heart disease, leading to sudden cardiac death (SCD) in competitive sports, while in older people, atherosclerotic coronary artery disease (CAD) is the main cause. The following preventive measures are recommended: (a) The pre-participation cardiov...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/00015385.2020.1867388
更新日期:2021-01-08 00:00:00
abstract:BACKGROUND:High platelet reactivity (HPR) to clopidogrel is associated with an increased risk of ischaemic complications during and after coronary interventions and concerns up to 50% of patients undergoing PCI. AIM OF THE STUDY:The aim of the study was to identify patients with HPR to clopidogrel using bedside clinic...
journal_title:Acta cardiologica
pub_type: 临床试验,杂志文章,多中心研究
doi:10.2143/AC.70.5.3110511
更新日期:2015-10-01 00:00:00