Abstract:
:For purposes of studying left ventricular mechanics, 184 chronic chagasic and 85 primary cardiomyopathy patients were submitted to an extensive invasive (LV cine, right and left cardiac catheterization and coronarography) and non-invasive protocol. The afterload, (mean wall stress), the contractile status (ejection fraction and circumpherential shortening) and the degree of hypertrophy (mass index) were assessed by M mode echocardiography. There was a very early increase of afterload in 8% of chagasic patients without evidences of LV myocardial involvement in the left cineventriculogram (group I-A). This increased afterload was accompanied by signs of inadequate hypertrophy in 15% of patients with early segmental myocardial damage (group IB). In contrast, ejection fraction and % circumpherential shortening were depressed only in patients with clinical evidences of congestive heart failure. Dilated primary CM patients showed similar findings, except for a more evident depression of contractility in those cases without signs of congestive heart failure (group II) and more hypertrophy than equivalent group III chagasic patients. Measurements of mean systolic wall stress and mass index are valuable parameters for identification of those patients with early increased after-load and inadequate hypertrophy which could benefit from the administration of oral vasodilators.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Guerrero L,Carrasco H,Parada H,Molina C,Chuecos Rsubject
Has Abstractpub_date
1989-07-01 00:00:00pages
23-7issue
1eissn
0066-782Xissn
1678-4170journal_volume
53pub_type
杂志文章abstract:BACKGROUND:Pulmonary embolism is associated with high mortality in patients with hypotension or circulatory shock. However, the association between some clinical variables and mortality is still unclear in hemodynamically stable patients. OBJECTIVES:To derive an in-hospital mortality risk stratification model in hemod...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,多中心研究
doi:10.1590/s0066-782x2009000800011
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Obesity is linked to high blood pressure (HBP) in childhood. However, the role of fat as a predictor of HBP in adolescents remains unknown. OBJECTIVE:To investigate the association between general and abdominal obesity with HBP and to identify the sensitivity and specificity of these indicators to detect HB...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000050
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of risk factors for cardiovascular diseases in employees of the research center at Petrobras. METHODS:In a cross-sectional study, employees of the research center at Petrobras were assessed clinically and by laboratory testing from March 2000 and February 2001. Those who did not a...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2004000100001
更新日期:2004-01-01 00:00:00
abstract::The management of cardiac implantable electronic devices after death has become a source of controversy. There are no uniform recommendations for such management in Brazil; practices rely exclusively on institutional protocols and regional custom. When the cadaver is sent for cremation, it is recommended to remove the...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 信件
doi:10.36660/abc.20200447
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVE:Assess the prevalence of white coat hypertension in the municipality of Dumont, in São Paulo State, and map study participants' demographics, and physiologic and metabolic changes. METHODS:One hundred and nine (109) users of the Municipal Health Service were selected and then divided into three groups: normo...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:The exercise treadmill test can be used in ventricular dysfunction patients for functional capacity or predicting prognosis. The cardiac image with 123I MIBG shows cardiac sympathetic activation. OBJECTIVE:To evaluate the relationship between exercise treadmill test variables and cardiac image changes in 12...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000044
更新日期:2011-05-01 00:00:00
abstract::Contrast echocardiography is based on intravenous injection of microbubbles that act as blood flow tracers and increase ultra-sound signal. Contrast agents have shown to improve cardiac cavities opacification and endocardial border delineation in addition to helping perfusion evaluation. Contrast echocardiography has ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2008001700015
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:There is few data evaluating the prevalence and influence of adverse psychological characteristics on the prognosis of individuals submitted to percutaneous coronary interventions. No study has addressed this issue in Brazil. OBJECTIVE:To investigate the prevalence of depression, anxiety, psychological stre...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000104
更新日期:2011-10-01 00:00:00
abstract::The authors report a case of a 65-year-old male patient who, after complaint about retrosternal discomfort and going through a thoracic radiography with mediastinal enlargement, was submitted to magnetic resonance angiography, which detected a right aortic arch with aberrant left subclavian artery and Kommerell divert...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2009001200026
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:Posterior subcapsular cataract is a tissue reaction commonly found among professionals exposed to ionizing radiation. OBJECTIVE:To assess the prevalence of cataract in professionals working in hemodynamics in Brazil. METHODS:Professionals exposed to ionizing radiation (group 1, G1) underwent slit lamp exam...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20190028
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Information on the clinical progression, in the long term, of patients submitted to mechanical reperfusion is scarce. OBJECTIVE:The objective of this study is to describe the long-term clinical progression of patients submitted to primary stenting. METHODS:Between January 1998 and December 2003 we studied ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:To evaluate whether procedures adopted by Brazilian physicians in the diagnosis and treatment of hypertension are in compliance with those advocated by the IV Brazilian Hypertension Guidelines. METHOD:Survey carried out by means of telephone interviews with Brazilian physicians. The survey featured applicati...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2007000200013
更新日期:2007-02-01 00:00:00
abstract::This is the report of a rare case of endomyocardial fibrosis associated with massive calcification of the left ventricle in a male patient with dyspnea on great exertion, which began 5 years earlier and rapidly evolved. Due to lack of information and the absence of clinical signs that could characterize impairment of ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x1999001200004
更新日期:1999-12-01 00:00:00
abstract:PURPOSE:To evaluate the presence of risk factors (RF) for coronary disease in a group of university students (US). METHODS:We studied 123 US, 88 (71.55%) females, mean age 21 +/- 3.52 years, submitted to questionary, interview, physical examination and serum analises. Eighty six women informed about oral contraceptive...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract:Background::In the Systolic Heart Failure Treatment With the If Inhibitor Ivabradine Trial (SHIFT), heart rate (HR) reduction with ivabradine was associated with improved survival and reduced hospitalizations in patients with heart failure (HF). The mechanisms by which elevated HR increases mortality are not fully unde...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,随机对照试验
doi:10.5935/abc.20160166
更新日期:2016-11-01 00:00:00
abstract::A 39-year-old female patient with refractory heart failure has been studied. On February, 1982 she was submitted to right lobar thyroidectomy for remotion of the left thyroid lobe. Following the surgery, she had signs of hypocalcemia and the diagnosis of secondary hypoparathyroidism and heart failure had been made. Se...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1992-11-01 00:00:00
abstract:BACKGROUND:The arterial hypertension varies in according to the circadian cycle, presenting physiologic fall of blood pressure (BP) during sleep (dipping). The absence of this fall or its increase associates to higher incidence of target-organ damages. OBJECTIVE:To analyze the prevalence of dipping in hypertensive ind...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2010000100013
更新日期:2010-01-01 00:00:00
abstract::The evaluation of the defibrillation threshold (DFT) during the implantation of a cardioverter-defibrillator (ICD) is an important stage of the procedure, as a high DFT can be found in up to 16% of patients. We report a patient with idiopathic dilated cardiomyopathy (DCM) submitted to a biventricular ICD implantation....
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012000600017
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Radiofrequency ablation (RFA) in children is an increasingly common practice. OBJECTIVE:To evaluate, in our institution, the results of RFA in children younger than 15 years. METHODS:A total of 125 children submitted to RFA between May 1991 and May 2010 were analyzed. RESULTS:Sixty-seven (53.6%) children ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012005000042
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Patients with end-stage kidney disease (ESKD) experience elevated cardiac stress because of the repetitive and intermittent character of dialysis. Changes in ventricular electrical systole induced by necessary dialysis significantly contribute to predict sudden death due to arrhythmia in ESKD. OBJECTIVE:The...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20130063
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Heart failure (HF) is an important public health problem, of which main clinical symptoms are dyspnea and fatigue. Noninvasive ventilatory support has been used as adjuvant therapy in cardiac rehabilitation in order to improve the functional capacity of patients. OBJECTIVE:To evaluate the functional capacit...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,随机对照试验
doi:10.1590/s0066-782x2011005000002
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Heart transplantation is an alternative for individuals with end-stage heart disease. However, episodes of heart rejection (HR) are frequent and increase morbidity and mortality, requiring the use of an accurate non-invasive exam for their diagnosis, since endomyocardial biopsy (EMB) is not a complication-fr...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012005000099
更新日期:2012-11-01 00:00:00
abstract::Stress-induced cardiomyopathy, also know as reversible left ventricular apical ballooning, " Broken-Heart" syndrome, and in Japan, Takotsubo, is characterized by the presence of a transient left ventricular dyskinetic movement of the anterior wall of with hypercontraction of the ventricular basilar segments precipitat...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2008000100011
更新日期:2008-01-01 00:00:00
abstract::We report the case of 22 year-old male who developed coronary artery disease two years after orthotopic cardiac transplantation, manifested as congestive heart failure NYHA functional class III. The left ventricular radioisotopic evaluation at rest revealed worsening of left ventricular ejection fraction from 50% to 3...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract:PURPOSE:In order to identify the reproducibility of head-up tilt test, a second test one week later in 22 patients with a positive first test, was performed. METHODS:The test was performed in a fasting state during the morning. The heart rate and blood pressure were monitored during 20 minutes in the supine position a...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:Acute coronary syndrome (ACS) is defined as a "group of clinical symptoms compatible with acute myocardial ischemia", representing the leading cause of death worldwide, with a high clinical and financial impact. In this sense, the development of economic studies assessing the costs related to the treatment o...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20150129
更新日期:2015-10-01 00:00:00
abstract::Constrictive chronic pericarditis in a 13-year-old male patient was previously treated as chronic hepatitis for seven years, with the use of furosemide and spironolactone. Investigation for diagnosis included chest radiography, echo-doppler-cardiography, thoracocentesis with pleural biopsy and computerized tomography ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1991-12-01 00:00:00
abstract::The study concerns a 44 year-old male patient with a history of intermittent episodes of rheumatic activity; the physical examination showed mitral valve stenosis and metacarpophalangeal joint deformities. The joint deformities were bilateral and symmetrical, similar to that of rheumatoid arthritis. Nevertheless, the ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1989-10-01 00:00:00
abstract:BACKGROUND:Sleep apneas are frequent in patients with heart failure (HF). Estimate of the pre-beta blocker age (BB) point out to 45% of central apneas in these patients. OBJECTIVE:Assess the influence of BB in central apneas and their interference in the quality of sleep and life of patients with heart failure. METHO...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:2010-02-01 00:00:00
abstract::We describe a rare case of permanent pacemaker implantation in a pregnant woman with rheumatic mitral valve disease previously undergoing percutaneous balloon valvuloplasty. She presented symptomatic advanced atrioventricular block of non-reversible cause and manifest in the third trimester of gestation. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000500017
更新日期:2009-05-01 00:00:00