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 and then at 60 degrees for up to 40 minutes. The test were considered positive if the patient experienced syncope or pre-syncope with fall in systolic blood pressure > 30mmHg. The following aspects were evaluated: reproducibility of the positive response; the type of response (hypotension, asystole or hypotension plus bradycardia) and the time interval between tilt and the beginning of symptoms. RESULTS:Eighteen (82%) patients had a second positive response; 14 (77.8%) of then had the same type of response; and 17 (94%) had syncope in similar time interval after tilt. CONCLUSION:The head-up tilt testing has good reproducibility, although its use in the therapeutic management needs a longer period of evaluation.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Hachul D,Sosa EA,Consolim F,Magalhães L,Scanavacca M,Martinelli M,Bellotti G,Pileggi Fsubject
Has Abstractpub_date
1994-05-01 00:00:00pages
297-9issue
5eissn
0066-782Xissn
1678-4170journal_volume
62pub_type
杂志文章abstract:BACKGROUND:Patients with thalassemia major present chronic hemolysis and require regular blood transfusions which may cause iron overload cardiomyopathy and chronic heart failure. Hemochromatosis is characterized by excessive iron accumulation in tissues, and heart involvement is the main cause of death in patients wit...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2013005000001
更新日期:2013-01-01 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::A 16 year old boy with Takayasu's disease was admitted with myocardial infarction. Thrombolytic therapy with intravenous streptokinase showed no signs of reperfusion. Rescue angioplasty of the left descending coronary artery was performed with success. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:The high and increasing prevalence of Dilated Cardiomyopathy (DCM) represents a serious public health problem. New technologies are being used aiming at more accurate diagnoses in order to improve therapeutic approach. In this scenario, speckle tracking echocardiography (STE) uses natural myocardial markers ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012005000086
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Excessive weight is a cardiovascular risk factor since it generates a chronic inflammatory process that aggravates the endothelial function. OBJECTIVE:To evaluate the endothelial function in individuals with excess weight and mild dyslipidemia using brachial artery flow-mediated dilation (BAFMD), and the as...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20160060
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:The diagnosis of arterial hypertension based on measurements of blood pressure in the office has low accuracy. OBJECTIVE:To evaluate the prevalence of masked hypertension (MH) and white-coat hypertension through home blood pressure monitoring (HBPM) in pre-hypertensive and stage 1 hypertensive patients. ME...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20190147
更新日期:2019-11-01 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:BACKGROUND:Prosthesis-patient mismatch (PPM) is associated with worse outcomes. OBJECTIVE:Determine the frequency and evaluate preoperatory variables independently associated with severe PPM in a tertiary hospital focused on Public Health Care. METHODS:A total of 316 patients submitted to aortic valve replacement, wh...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20190231
更新日期:2020-01-01 00:00:00
abstract::We report a case of dobutamine stress echocardiography-induced Takotsubo syndrome in a 76-year-old hypertensive patient with clinical complaints of chest pain in an elective visit to the cardiologist. Dobutamine-stress-echocardiography was requested to rule out chest pain of coronary origin. During the test, at peak e...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000700014
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Atrial fibrillation is the most common persistent arrhythmia, and is the main factor that leads to thromboembolism. OBJECTIVE:To investigate the value of left atrial diameter combined with CHA2DS2-VASc score in predicting left atrial/left atrial appendage thrombosis in non-valvular atrial fibrillation. MET...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.36660/abc.20190492
更新日期:2021-01-18 00:00:00
abstract:BACKGROUND:There is considerable controversy regarding the diagnosis of Acute Kidney Injury (AKI), and there are over 30 different definitions. OBJECTIVE:To evaluate the incidence and risk factors for the development of AKI following cardiac surgery according to the RIFLE, AKIN and KDIGO criteria, and compare the prog...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20130115
更新日期:2013-07-01 00:00:00
abstract:PURPOSE:To evaluate the electrophysiological effects of intravenous propafenone in the anterograde and retrograde effective refractory period of the accessory pathways (AP), in patients with Wolff-Parkinson-White syndrome. METHODS:Forty symptomatic patients were studied. All patients were undergone to electrophysiolog...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:
更新日期:1993-07-01 00:00:00
abstract:BACKGROUND:Reproducibility data of the extent and patterns of late gadolinium enhancement (LGE) in hypertrophic cardiomyopathy (HCM) is limited. OBJECTIVE:To explore the reproducibility of regional wall thickness (WT), LGE extent, and LGE patterns in patients with HCM assessed with cardiac magnetic resonance (CMR). M...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20160087
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Patients with metabolic syndrome (MetS) are at high coronary risk and beta-cell dysfunction or insulin resistance might predict an additional risk for early cardiovascular events. OBJECTIVE:This study aimed to evaluate early glucometabolic alterations in patients with MetS, but without previously known type...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000200004
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:To investigate the prevalence and multiplicity of additional risk factors (RF) in a population sample of hypertensive smokers, diagnosed and enrolled at the Hiperdia Program of the Ministry of Health, in the city of Brusque, SC, Brazil. METHODS:Determination of the anthropometrical parameters and laboratory ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2006000300010
更新日期:2006-03-01 00:00:00
abstract:PURPOSE:To evaluate clinical findings and etiology of bacterial infections diagnosed in 100 consecutive heart transplantations. METHODS:One hundred consecutive heart transplant patients were studied. Follow-up after heart transplantation varied from 3 to 90 (mean 25.38 +/- SD 25.97) months. Etiology of bacterial infec...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Levosimendan, a calcium sensitizer, increases the sensitivity of the heart to calcium, thus increasing myocardial contractility without a rise in intracellular calcium. It was recently shown that levosimendan is beneficial in improving renal function. However, it remains to be established that the beneficial...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012005000048
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Effective interventions to improve medication adherence are usually complex and expensive. OBJECTIVE:To assess the impact of a low-cost intervention designed to improve medication adherence and clinical outcomes in post-discharge patients with CVD. METHOD:A pilot RCT was conducted at a teaching hospital. I...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,随机对照试验
doi:10.5935/abc.20140151
更新日期:2014-12-01 00:00:00
abstract:PURPOSE:The study of frequency, modalities and course of neurological complications of infective endocarditis (IE), as well as the current indication and value of supplementary examinations. METHODS:Sixty-three patients with IE, 39 with native valve and 24 with valvar prosthesis, were prospectively studied; the mean a...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract:OBJECTIVE:We determined the effects of losartan and PD 123319 (antagonists of the AT1 and AT2 angiotensin receptors, respectively), and [Sar1, Ala8] ANG II (a relatively peptide antagonist of angiotensin receptors) injected into the paraventricular nucleus (PVN) on water and 3% NaCl intake, and the diuretic, natriureti...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2003000400004
更新日期:2003-04-01 00:00:00
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 adequa...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Aerobic exercise is an important ally in the fight against cardiovascular risk factors. However, the effects of high-intensity exercise on these factors are still poorly known. OBJECTIVE:To compare the effects of aerobic and anaerobic exercise protocols on cardiac risk factors. METHODS:22 individuals with ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,随机对照试验
doi:10.1590/s0066-782x2008001600003
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the sphygmomanometers calibration accuracy and the physical conditions of the cuff-bladder, bulb, pump, and valve. METHODS:Sixty hundred and forty five aneroid sphygmomanometers were evaluated, 521 used in private practice and 124 used in hospitals. Aneroid manometers were tested against a proper...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:Unilateral pulmonary artery agenesis is an uncommon isolated anomaly and since 1978 only 119 cases have been reported. In general the condition presents as pulmonary hypertension (PH) in children and hemoptysis in adults. Interventions such as pulmonary artery reconstruction and lobectomies were performed in ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2006001700005
更新日期:2006-10-01 00:00:00
abstract:PURPOSE:To analyze, by cross-sectional echocardiography, morphological features of the atrial atrioventricular and ventricular septum potentially involved in the genesis of fixed subaortic stenosis. METHODS:Forty three children with fixed subaortic stenosis were compared with 86 normal children, matched by age, sex an...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:Despite reports in the literature that both leisure-time physical activity (LTPA) and commuting physical activity (CPA) can promote health benefits, the literature lacks studies comparing the associations of these domains of physical activity with cardiovascular risk scores. OBJECTIVE:To investigate the ass...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20170178
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:The determination of the prevalence of electrocardiographic alterations in the older age strata of the Brazilian population represents important information with clinical and epidemiological purpose. OBJECTIVE:To verify the prevalence rates of atrial fibrillation, enlarged Q/QS waves (Minnesota code 1.1-1.2...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009001200015
更新日期:2009-12-01 00:00:00
abstract:Background::The endothelium is a monolayer of cells that extends on the vascular inner surface, responsible for the modulation of vascular tone. By means of the release of nitric oxide (NO), the endothelium has an important protective function against cardiovascular diseases. Objective::Verify if cis- [Ru(bpy)2(NO2)(N...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20170090
更新日期:2017-06-29 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:OBJECTIVE:To assess the relation between the evolution of cognitive performance and the prognosis of elderly patients after compensation of advanced heart failure. METHODS:Thirty-one patients older than 64 (68 +/- 7) years and admitted with New York Heart Association class IV heart failure and ejection fraction = 0.45...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2004000300005
更新日期:2004-03-01 00:00:00