Abstract:
:The conventional right ventricular stimulation can be associated with deleterious effects on cardiac function. The need for a more physiological artificial cardiac stimulation is undoubtedly one of the most important points in the area of cardiac electrotherapy. The programming algorithms for the maintenance of adequate atrioventricular conduction, the stimulation of alternative endocardial sites and the cardiac resynchronization therapy are used with the objective of attaining these goals. The stimulation of the bundle of His and the septal stimulation have been studied as alternative endocardial sites for the positioning of the electrode on the right ventricle. The septal stimulation represents a simple and practical alternative, with no additional costs involved and with potential benefits in decreasing the deleterious effects of the right ventricular stimulation. However, this alternative site involves a heterogeneous group of patients and presents conflicting results regarding its long-term clinical benefit. This article reviews the scientific evidence on the alternative sites for right ventricular stimulation, with emphasis on the safety of the procedure, the measurement of the electrophysiological parameters, assessment of the left ventricular function and the clinical follow-up of patients.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Silva Júnior Od,Melo CS,Marra M,Correia Dsubject
Has Abstractpub_date
2011-01-01 00:00:00pages
76-85issue
1eissn
0066-782Xissn
1678-4170pii
S0066-782X2011000100013journal_volume
96pub_type
杂志文章,评审abstract::We report the case of a girl with chronic rheumatic valvar heart disease who developed infective endocarditis and two complications, ischemic stroke due to cerebral embolic event and mycotic aneurysm of the superior mesenteric artery. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2007000100023
更新日期:2007-01-01 00:00:00
abstract::There is a known association between chemotherapy and radiotherapy for treatment of cancer patients and development or worsening of hypertension. The aim of this article is to review this association. A literature search was conducted for articles reporting this association on the databases PubMed, SciELO and LILACS b...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.5935/abc.20150011
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND:Peripartum cardiomyopathy is an idiopathic disorder defined by the occurrence of acute heart failure during late pregnancy or post-partum period in the absence of any other definable cause. Its clinical course is variable and severe cases might require heart transplantation. OBJECTIVE:To investigate long-te...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20180014
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Little is known, especially in our country, about the influence of health insurance plans on the long term outcome of patients after acute myocardial infarction (AMI). OBJECTIVE:To assess the outcome of patients with AMI who are covered by the National Health System (SUS) or other health insurance plans. M...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2008001800004
更新日期:2008-12-01 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:BACKGROUND:In Chagas' disease endemic regions, there has been for many years a recurrent empirical observation that coronary artery disease (CAD) is uncommon in patients with Chagas' disease. Previous pathological and invasive coronary angiography studies led to controversial results. OBJECTIVE:We sought to investigat...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.36660/abc.20200342
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVE:This analysis was undertaken to determine the composite incidence of cumulative adverse events (death, reinfarction, disabling stroke, and target vessel revascularization) at the end of the first year after acute myocardial infarction, in diabetic patients who underwent coronary stenting or primary coronary b...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1590/s0066-782x2001001200006
更新日期:2001-12-01 00:00:00
abstract::Treatment of DHF is a challenge even for the experienced physician. Advances in research have brought new treatment options that are helping change paradigms. The available evidence suggests that new drugs like levosimendan and nesiritide will assume relevant positions as alternatives or complements to treatment with ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2006001600022
更新日期:2006-09-01 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:BACKGROUND:The prevalence of dyslipidemia is increasing in many parts of Brazil, but it is yet unclear how much exercise is needed to attain beneficial effects on plasma lipoprotein levels. OBJECTIVE:The study analyzed eight cities of the state of São Paulo, the association between the continued practice of physical e...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000083
更新日期:2011-10-01 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:PURPOSE:To test the association between diabetes mellitus and ischaemic heart disease (IHD) in males and females, after adjusting for known confounders and/or modifiers of effect. METHODS:The study was designed as a case-control and the period of data collection was one year (March/93 until February/94). The associati...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1996-02-01 00:00:00
abstract::PURPOSE--To present initial experience on radiofrequency (RF) ablation of atrial flutter (AFL) guided by anatomic and electrophysiologic parameters. METHODS--Eight patients (six males), mean-age of 42 +/- 17.5 years with chronic type I AFL (mean cycle length of 251 +/- 14.3 msec, range 240 to 280 msec) were undergone ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:
更新日期:1995-04-01 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: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:Betablockers are used in the treatment of angina pectoris and others ischemic coronary diseases, reducing mortality and cardiovascular events. Atenolol is a hydrophilic betablocker which is characterized by gastrointestinal absorption, small extent of distribution and renal function-dependent elimination. O...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2007000600003
更新日期:2007-06-01 00:00:00
abstract::Anticoagulation is the chief problem during pregnancy of women with mechanical prosthetic valves. Many studies have investigated a nonthrombogenic valve. Since 1978 we have used a biological porcine prosthetic valves in 16 pregnancies, 11 patients with regular clinical electrocardiographic, echocardiographic and chest...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVE:The decrease in mortality due to cardiovascular diseases (CVD) has been achieved in the United States and the same decrease has been happening in developing countries, thanks to favorable changes in lifestyle and risk factors. Despite such consideration, the volume of information available on the distribution...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2005001400005
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND:Cardiac tumors are rare, mostly benign with high embolic potential. OBJECTIVES:To correlate the histological type of cardiac masses with their embolic potential, implantation site and long term follow up in patients undergoing surgery. METHODS:Between January 1986 and December 2011, we retrospectively anal...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20140096
更新日期:2014-07-01 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:PURPOSE:To evaluate left ventricular mass (LVM) index in hypertensive and normotensive obese individuals. METHODS:Using M mode echocardiography, 544 essential hypertensive and 106 normotensive patients were evaluated, and LVM was indexed for body surface area (LVM/BSA) and for height2 (LVM/h2). The 2 indexes were then...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2002000400001
更新日期:2002-04-01 00:00:00
abstract::Total generalized lipodystrophy (Berardinelli - Seip Syndrome) is a rare hereditary disease characterized by insulin-resistant diabetes mellitus and a small quantity of adipose tissue and is of unknown origin. Common cardiovascular alterations related to this syndrome are cardiac hypertrophy and arterial hypertension....
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2000000900006
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVES:To compare the morbidity and mortality of patients with and without metabolic syndrome (MS) (according to the First Brazilian Guidelines for Diagnosis and Treatment of MS) undergoing coronary artery bypass graft (CABG) during hospitalization and after 30 days. METHODS:A total of 107 patients who underwent C...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2007000400008
更新日期:2007-04-01 00:00:00
abstract::Becker muscular dystrophy (BMD) integrates dystrophy occurring due to genetic mutations that express the dystrophin protein in chromosome X. The onset of neuromuscular symptoms usually precedes the impairment of cardiac function, and may conversely happen by heart failure (HF). Physical training is well established in...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011001500016
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Institutional documents recommend that hemodynamic variables--heart rate (HR) and systolic (SAP) and diastolic arterial pressure (DAP)--be routinely controlled at the aerobic part of supervised exercise sessions for coronary disease patients. OBJECTIVE:a) to determine the pattern and reproducibility of the ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000700009
更新日期:2009-07-01 00:00:00
abstract::This is the report of a 74-year-old female patient with a history of systemic hypertension and peripheral vascular disease who presented acute coronary syndrome symptoms. Coronary angiography showed coronary arteries with no significant obstructions. Ventriculography and echocardiography showed akinesia in mid and api...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2008000300013
更新日期:2008-03-01 00:00:00
abstract:PURPOSE:To study mononuclear magnesium and serum cations (Na, K and Mg) in elderly hypertensive patients treated with hydrochlorothiazide during 90 days. PATIENTS AND METHODS:15 elderly hypertensive patients treated with hydrochlorothiazide, 25 mg/day or placebo. A method of freezing produced total lysis of the cells;...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::In order to evaluate major Doppler-Echocardiographic parameters for the diagnosis of acute cardiac allograft rejection episodes a serial of 54 Doppler Echocardiograms were performed simultaneously with endomyocardial biopsy in five patients (mean age = 40.2 y/o). Measurements included: right and left chambers diameter...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract::We report the case of a female patient with obstructive lesions in the right and left carotid, right renal, left subclavian and left common iliac arteries which were percutaneously treated. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2006001800024
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVE:To assess the relation between P-wave and QT dispersions in elderly patients with heart failure. METHODS:Forty-seven elderly patients (75.6+/-6 years) with stable heart failure in NYHA functional classes II or III and with ejection fractions of 37+/-6% underwent body surface mapping to analyze P-wave and QT ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2002001400007
更新日期:2002-11-01 00:00:00