Abstract:
PURPOSE:To verify whether accentuated reductions of left ventricular volume lead to mitral valve prolapse. METHODS:Seven mongrel dogs were bled through the internal jugular vein, the systolic systemic pressure being kept between 100 and 140 mmHg by means of continuous infusion of dopamine; the inferior vena cava vein, in tree other dogs, was partially obstructed for 4 to 6 seconds; epicardial echocardiography was carried out in all cases. RESULTS:Reductions of volemia were about 50% of the estimated total blood volume. Systolic internal diameter of left ventricle decreased about 25% and systolic ostial diameter, about 12.5%. Three out of seven died suddenly from arrhythmia before one has reached a significant decrease in total blood volume; one showed momentary mitral valve prolapse, during a period of hypotension; however, this prolapse disappeared completely when systemic blood pressure was restored by increasing the dopamine dosage; one dog had slight systolic displacement of the anterior cusp toward left atrium (0.5mm) and the last two showed no change; one out of 3 dogs submitted to partial constriction of inferior vena cava had systolic displacement of anterior cusp of 1mm; in one case there was an equivalent degree of displacement of the anterior cusp toward the left ventricle and in the last one no change was detected. In all dogs there was a change in the dynamics of mitral valve closure: with accentuated reduction of left ventricular volume the posterior cusp became less mobile, the anterior cusp being the principal responsible for the systolic ostial occlusion. CONCLUSION:Accentuated reduction of dog's left ventricular volume does not, necessarily, cause mitral valve prolapse but only slight displacement of the anterior cusp toward the left atrium in some animals or no displacement at all.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Curti HJ,Ferreira MC,Silveira SA,Sanches PC,Carvalhal Ssubject
Has Abstractpub_date
1993-10-01 00:00:00pages
221-4issue
4eissn
0066-782Xissn
1678-4170journal_volume
61pub_type
杂志文章abstract::Central vein cannulation is used as routine for long-time treatment in paediatric intensive care units. The Sylastic catheter is now a days the most common used because of its non-thrombogenic effect. However, in the case here reported, fragmentation during its removal occurred in a eleven month baby. Non surgical rem...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1989-11-01 00:00:00
abstract:PURPOSE:To evaluate the efficiency of a non-surgical treatment of the femoral false aneurysm following cardiac catheterization using the color Doppler echocardiography monitorization. METHODS:From August 1993 to October 1996, 17 patients were evaluated by the color Doppler echocardiography, 7 women and 10 men, between...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1997-06-01 00:00:00
abstract:BACKGROUND:The standardization of images used in Medicine in 1993 was performed using the DICOM (Digital Imaging and Communications in Medicine) standard. Several tests use this standard and it is increasingly necessary to design software applications capable of handling this type of image; however, these software appl...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2012005000089
更新日期:2012-10-01 00:00:00
abstract:PURPOSE:To evaluate the feasibility, efficacy and safety of the use of 4F Judkins catheters for coronary angiography. METHODS:From August/95 to January/96, 70 patients with suspected coronary artery disease underwent coronary cineangiography by the Judkins technique, with 4F catheters. Following puncture of the right ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x1998000100002
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:To study anatomical limitation of coronary angioplasty, as alternative therapy in patients with multivessel disease and submitted to bypass surgery. METHODS:In 380 patients with multivessel disease and submitted to previous coronary bypass surgery, age ranged from 41 to 72 (average = 51) years, being 68% males...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Studies on the impact of HDL-c and the occurrence of cardiovascular disease (CV) in the elderly are scarce. OBJECTIVE:To evaluate the clinical and laboratory variables and the occurrence of CV events in elderly patients stratified according to the behavior of HDL-c during an eight-year follow up. METHODS:W...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000900006
更新日期:2009-09-01 00:00:00
abstract::The aim of this paper is to review clinical and laboratory features of this unusual pathology and its complications, indicating transcatheter embolization as a first choice for its management. Our case report is of a seven year-old child, with complex pulmonary arteriovenous fistula of the anterior segment of right su...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of coronary artery disease (CAD) risk factors (RF) and myocardial ischemia in a sample of asymptomatic diabetic patients treated on an outpatient basis. METHODS:From 80 type 2 diabetic patients initially recruited at an university outpatient endocrinology clinic, with no symptoms ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2007001700005
更新日期:2007-11-01 00:00:00
abstract:PURPOSE:To evaluate the nitroglycerin patches efficacy and tolerability in patients with stable angina pectoris. METHODS:One thousand and five hundred and thirty nine patients with stable angina pectoris, mean age 61.0 +/- 10.3, 891 men and 648 women were prospectively evaluated by five hundred and thirty five special...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,多中心研究
doi:
更新日期:1992-02-01 00:00:00
abstract:BACKGROUND:Heart rate recovery after treadmill electrocardiographic exercise stress test is modulated by the autonomic nervous system. Analysis of heart rate variability can provide useful information about autonomic control of the cardiovascular system. OBJECTIVE:The aim of the study was to test the hypothesis of ass...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2008000600005
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVE:To detect the prevalence of systemic hypertension in children and to establish the relation between blood pressure levels and sex, age, ethnicity, weight, and height. METHODS:The prevalence of systemic hypertension and its relation to sex, age, ethnicity, weight, and height were studied in 611 students aged ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2003001200005
更新日期:2003-10-01 00:00:00
abstract::Studies on hypermobility have aroused great interest in the last decades, as they are associated to musculoskeletal disorders, as well as abnormalities in several organic systems, such as the mitral valve prolapse. Therefore, in this study, data on the association between joint hypermobility and the mitral valve prola...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2009000900016
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:High-sensitivity cardiac troponin I (hs-cTnI) has played an important role in the risk stratification of patients during the in-hospital phase of acute coronary syndrome (ACS), but few studies have determined its role as a long-term prognostic marker in the outpatient setting. OBJECTIVE:To investigate the a...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20180268
更新日期:2019-03-01 00:00:00
abstract:BACKGROUND:The Stroop test requires the individual to respond to specific elements of a stimulus, whereas inhibiting more automated processes. OBJECTIVE:To compare the cardiovascular reactivity induced by the computerized version of the Stroop word-color test TESTINPACS with the traditional version based on the readin...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2010005000006
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Data from over 4 decades have reported a higher incidence of silent infarction among patients with diabetes mellitus (DM), but recent publications have shown conflicting results regarding the correlation between DM and presence of pain in patients with acute coronary syndromes (ACS). OBJECTIVE:Our primary o...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20140106
更新日期:2014-09-01 00:00:00
abstract::Percutaneous transluminal coronary angioplasty is unusual in acute myocardial infarction after left main coronary artery occlusion. We applied this therapy in two cases. The first, a 54-year-old man, submitted to mechanical reperfusion and left main coronary artery angioplasty 145 minutes after the beginning of the sy...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1990-08-01 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:BACKGROUND:When the Japanese immigrated to the Americas, they were subjected to Westernization, with a great change in lifestyle, specially in dietary habits, and this may explain the increase in the incidence of diabetes mellitus (DM), metabolic syndrome (MS) and cardiovascular disease among them. OBJECTIVE:To study ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2009000500008
更新日期:2009-05-01 00:00:00
abstract::[This corrects the article doi: 10.5935/abc.20120401]. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20190091
更新日期:2019-06-06 00:00:00
abstract:BACKGROUND:Depression is a common comorbidity in heart failure (HF); however, the mechanisms related to a poorer outcome of depressed patients with HF remain unclear. OBJECTIVE:To evaluate the role of severe depression in the outcome of patients with decompensated HF. METHODS:A total of 43 patients with advanced HF, ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2010005000125
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Percutaneous intervention in patients with bioprosthetic mitral valve dysfunction is an alternative to conventional surgical treatment. OBJECTIVES:To report the first Brazilian experience with transseptal transcatheter bioprosthetic mitral valve-in-valve implantation (transseptal-TMVIV). METHODS:Patients w...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,多中心研究
doi:10.36660/abc.20190252
更新日期:2020-09-01 00:00:00
abstract::We report the case of a 3-year-old female patient, who, since birth, had cyanosis difficult to explain with usual diagnostic tests. The only findings on physical examination were cyanosis and clubbing of her fingers. Chest computerized tomography showed images of excessive attenuation in the right lung, which resemble...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2001000900008
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Early exposure to obesity favors greater risks of cardiovascular factors such as dyslipidemia. OBJECTIVES:To establish the prevalence of dyslipidemia, and to evaluate its association with nutritional status of the adolescents attended at the ambulatory of the Adolescent Health Studies Center of the Universi...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20180254
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Birth weight (BW) is a medium- and long-term risk determinant of cardiovascular risk factors. OBJECTIVE:To assess the association between BW and cardiovascular risk factors in adolescents of the city of Salvador, Bahia state. METHODS:Cross-sectional study with comparison of BW groups. Sample comprising 250...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20130114
更新日期:2013-07-01 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::Extensive and severe myocardial lesions are reported in a patient who died due to snakebite (Crotalus Durissus Terrificus). These lesions are documented by clinical, electrocardiographic, enzymatic and histological evidences. The main pathological features are represented by sarcoplasmatic vacuoles, densely clumped my...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1990-05-01 00:00:00
abstract:PURPOSE:To report the result of patients treated with IV methylprednisolone divided into three groups and compare their follow-up during the last 12 years. METHODS:Seventy children with active rheumatic carditis (76 episodes) in heart failure Class III and IV (NYHA) were studied. The diagnosis was based on modified Jo...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x1999000500007
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND:Genetic risk score can quantify individual's predisposition to coronary artery disease; however, its usefulness as an independent risk predictor remains inconclusive. OBJECTIVE:To evaluate the incremental predictive value of a genetic risk score to traditional risk factors associated with coronary disease. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20180107
更新日期:2018-07-01 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::An 8 year old child suffering from asthenia and complete atrioventricular block, probably congenital. During the tread-mill test there was a sudden electrocardiogram change to a ventricular preexcitation pattern. Besides this rare association, we emphasize the importance of the autonomic balance over the accessory pat...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00