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| Registros recuperados: 26 | |
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| Buck,P.C.; Fernandes,F.; Arteaga,E.; Matsumoto,A.Y.; Araujo,A.Q.; Oliveira,E.M.; Ianni,B.M.; Ramires,F.J.A.; Krieger,J.E.; Mady,C.. |
| Angiotensin-converting enzyme (ACE) activity and polymorphism contribute significantly to the prognosis of patients with cardiomyopathy. The aim of this study was to determine the activity and type of ACE polymorphism in patients with familial and nonfamilial hypertrophic cardiomyopathy (HCM) and to correlate these with echocardiographic measurements (echo-Doppler). We studied 136 patients (76 males) with HCM (69 familial and 67 nonfamilial cases). Mean age was 41 ± 17 years. DNA was extracted from blood samples for the polymerase chain reaction and the determination of plasma ACE levels. Left ventricular mass, interventricular septum, and wall thickness were measured. Mean left ventricular mass index, interventricular septum and wall thickness in familial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; ACE activity; ACE polymorphism; Hypertrophic cardiomyopathy; Left ventricular mass index. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000800005 |
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| Zheng,Huan; Li,Ye; Xie,Nanzi. |
| BACKGROUND: Left ventricular diastolic dysfunction is one of the main characteristics of heart failure patients with a preserved left ventricular ejection fraction. As bilirubin is regarded as an important endogenous antioxidant molecule, serum total bilirubin levels were compared between heart failure patients with a preserved left ventricular ejection fraction and normal controls in this study. We recruited 327 heart failure patients with a preserved left ventricular ejection fraction and 200 healthy controls. Patients were divided into 4 subgroups by their comprehensive echocardiographic manifestations, 1-mild, 2-moderate, 3-severe (reversible restrictive), 4-severe (fixed restrictive). Total bilirubin levels were compared using stepwise multiple... |
| Tipo: Journal article |
Palavras-chave: Bilirubin; Heart failure; Diastolic dysfunction; Echocardiography. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100007 |
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| Borboleta,LR; Silva,EF; Oliveira,MS; Michel,AFRM; Ferraz,VP; Leite,RC; Melo,MM. |
| Clinical and laboratory changes were evaluated in rabbits after intoxication by Amorimia rigida, a plant that causes sudden death. Nine New Zealand male rabbits, averaging 3.54 kg, were categorized into three groups (n = 3) and received, for eight consecutive days, the equivalent of 30 g/kg dry matter of A. rigida water-soluble (SG) and water-insoluble (IG) extracts via nasoesophageal route. The control group received water. There were no alterations in creatine kinase enzyme (CK), CK myocardial fraction (CKMB) or troponine I (cTnI). None of the animals had clinical or electrocardiographic (conventional and Holter) alterations. There were progressive decreases in the left ventricular ejection fraction and systolic fractional shortening. Doppler... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxic plant; Amorimia rigida; Cardiac muscle profile; Electrocardiography; Echocardiography; Rabbit. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000300007 |
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| Almeida,V.T.; Uscategui,R.A.R.; Restan,W.A.Z.; Feliciano,M.A.R.; Ortiz,E.M.; Kawanami,A.E.; Barros,F.F.P.C.; Santos,V.J.C.; Vicente,W.R.R.. |
| ABSTRACT Aiming to provide cardiovascular morphophysiology information on the Cuniculus paca, an important neotropical rodent, eight healthy adult females of this species were evaluated three times by echocardiography under general anesthesia with isoflurane every 15 days. The exams were performed by a single experienced evaluator with the animals positioned in right and left decubitus. Posteriorly, two expert evaluators measured the cardiac chambers, walls and flow patterns, by B-mode, M-mode, and Doppler ultrasonography. The resulting values were compared among evaluators and periods by the Bland-Altman agreement test and several descriptive statistics were presented for each parameter. Echocardiographic images were obtained between the second and fifth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; Rodents; Neotropical; Wildlife. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000100061 |
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| Linardi,R.L.; Canola,J.C.; Valadão,C.A.A.. |
| Cardiovascular effects due to intravenous (IV) xylazine (1.0mg/kg) or amitraz (0.1 or 0.4mg/kg) were evaluated in horses. Left ventricular function indexes, heart rate (HR), and cardiac output (CO) were measured by echocardiography. Second degree atrioventricular (AV) block was detected by electrocardiography. Invasive arterial blood pressure (AP) was also evaluated. All parameters were measured immediately before and during 60 minutes after drug injection. HR, CO, and second degree AV block were different between xylazine and amitraz-0.4mg/kg groups. Xylazine induced initial hypertension 10 minutes after injection, and hypotension was observed 30 minutes after amitraz-0.4mg/kg administration. Except for the second degree AV block which occurred only at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Horse; Alpha-2 agonist; Xylazine; Amitraz; Echocardiography. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000200008 |
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| Bussoni,M.F.; Guirado,G.N.; Roscani,M.G.; Polegato,B.F.; Matsubara,L.S.; Bazan,S.G.Z.; Matsubara,B.B.. |
| Exercise capacity and quality of life (QOL) are important outcome predictors in patients with systolic heart failure (HF), independent of left ventricular (LV) ejection fraction (LVEF). LV diastolic function has been shown to be a better predictor of aerobic exercise capacity in patients with systolic dysfunction and a New York Heart Association (NYHA) classification ≥II. We hypothesized that the currently used index of diastolic function E/e' is associated with exercise capacity and QOL, even in optimally treated HF patients with reduced LVEF. This prospective study included 44 consecutive patients aged 55±11 years (27 men and 17 women), with LVEF<0.50 and NYHA functional class I-III, receiving optimal pharmacological treatment and in a stable clinical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; Left ventricular dysfunction; Six-minute walk test; Dyspnea. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000900803 |
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| Manso,P.H.; Figueira,R.L.; Prado,C.M.; Gonçalves,F.L.; Simões,A.L.B.; Ramos,S.G.; Sbragia,L.. |
| This study aimed to demonstrate that congenital diaphragmatic hernia (CDH) results in vascular abnormalities that are directly associated with the severity of pulmonary hypoplasia and hypertension. These events increase right ventricle (RV) afterload and may adversely affect disease management and patient survival. Our objective was to investigate cardiac function, specifically right ventricular changes, immediately after birth and relate them to myocardial histological findings in a CDH model. Pregnant New Zealand rabbits underwent the surgical procedure at 25 days of gestation (n=14). CDH was created in one fetus per horn (n=16), and the other fetuses were used as controls (n=20). At term (30 days), fetuses were removed, immediately dried and weighed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Congenital diaphragmatic hernia; Right ventricle; Pulmonary arterial hypertension; Echocardiography. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000300234 |
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| Cardoso,Helena Mondardo; Tocheto,Ronise; Padilha,Vanessa Sasso; Silva,Gizelli; Comassetto,Felipe; Andrade,James Newton Bizetto Meira de; Oleskovicz,Nilson. |
| ABSTRACT: The objective of this study was to investigate the echocardiographic changes during anesthesia induction in dogs sedated with acepromazine (0.05mg/kg) and butorphanol (0.3mg/kg) (AB). Twenty-four male dogs, with a mean weight of 12.40kg±3.1kg, were randomly assigned to 4 groups (n=6). Fifteen minutes after administering pre-anesthetic medication, anesthesia with diazepam (0.5mg/kg) and etomidate (1mg/kg) (group DE); diazepam (0.5mg/kg) and ketamine (3mg/kg) (group CD); propofol (4mg/kg) (group P); or ketamine (1mg/kg) and propofol (3mg/kg) (group CP) was administered to the 6 dogs in each group. Systolic blood pressure (SBP) was measured and echocardiography was performed immediately prior to the application of the sedation protocol (baseline),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; Dogs; Sedation; Induction. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800602 |
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| Prada,D.G.; Oliveira,V.M.C.; Larsson,M.H.M.A.; Yamaki,F.L.. |
| The left atrium (LA) was evaluated through the bidimensional method (2-D) (short axis) and the relation left atrium:aorta (LA:Ao) in a group of 40 healthy adult dogs between 1.5 and 7 years of age and weights ranging from 3.2 to 38.3kg, and these values were compared to those in the conventional M-mode. Comparing the variable LA and Ao with the two methods and their respective indexes, significant statistical difference was observed (P<0,001), high positive correlation between the weight and LA-2D and LAM, between body surface and LA-2D and LAM. A difference between LA and Ao in both methods and these respective indicators were observed. The association was higly positive between weight and body surface area (BSA) and between M- mode LA (LAM) and 2-D... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dog; Echocardiography; Left atrium; Normal. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300009 |
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| Santos,E.A.; Aptekmann,K.P.; Santos,P.O.P.R.; Reis,A.C.; Kuster,M.C.C.; Andrade Junior,P.S.C.. |
| ABSTRACT Considering that the use of tranquillizers could optimize the performance of the echocardiogram, this study aimed to evaluate the effect of protocols with acepromazine and fentanyl on the echocardiographic parameters of healthy dogs, besides their effect in systolic blood pressure (SBP), respiratory rate (RR), heart rate (HR), time spent for examination and sedation scale. Ten adult dogs were submitted to different tranquilizing protocols 20 minutes before the echocardiographic examination, totalling five treatments for each pair, performed at seven-day intervals between evaluations. The treatments were CT (control treatment), IAT (intramuscular acepromazine), OAT (oral acepromazine), FT (fentanyl) and AFT (acepromazine associated with fentanyl).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; Phenothiazine; Opioid. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601767 |
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| Tanaka,D.M.; Romano,M.M.D.; Carvalho,E.E.V.; Oliveira,L.F.L.; Souza,H.C.D.; Maciel,B.C.; Salgado,H.C.; Fazan-Júnior,R.; Simões,M.V.. |
| Determination of left ventricular ejection fraction (LVEF) using in vivo imaging is the cardiac functional parameter most frequently employed in preclinical research. However, there is considerable conflict regarding the effects of anesthetic agents on LVEF. This study aimed at assessing the effects of various anesthetic agents on LVEF in hamsters using transthoracic echocardiography. Twelve female hamsters were submitted to echocardiography imaging separated by 1-week intervals under the following conditions: 1) conscious animals, 2) animals anesthetized with isoflurane (inhaled ISO, 3 L/min), 3) animals anesthetized with thiopental (TP, 50 mg/kg, intraperitoneal), and 4) animals anesthetized with 100 mg/kg ketamine plus 10 mg/kg xylazine injected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echocardiography; Anesthetics; Systolic function; Hamsters. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001000602 |
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| Santos,P.O.P.R.; Santos,E.A.; Reis,A.C.; Santos,A.M.M.R.; Kuster,M.C.C.; Trivilin,L.O.; Aptekmann,K.P.. |
| ABSTRACT Physical activity alters the cardiovascular system of dogs, depending on the exercise characteristics and the animal’s physical conditioning. Little is known about the cardiovascular changes in rescue-trained dogs. This study evaluated the cardiovascular responses to a search and rescue exercise session to differentiate these alterations from cases of exhaustion or some possible pathology. Nine healthy rescue-trained dogs that trained for at least one year were used. Seven German Shepherds and two Belgian Shepherd Malinois were evaluated twice, immediately before exercise (M0) and immediately after a 20-minute training (M1). Electrocardiographic, echocardiographic, and systemic blood pressure (SBP) measurements were performed at each evaluation.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Working dog; Blood pressure; Echocardiography; Electrocardiography; Exercise physiology. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401036 |
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| Marjani,Majid; Baghaei,Parvaneh; Malekmohammad,Majid; Tabarsi,Payam; Sharif-Kashani,Babak; Behzadnia,Neda; Mansouri,Davood; Masjedi,Mohammad Reza; Velayati,Ali Akbar. |
| Background:This study performed at the National Research Institute of Tuberculosis and Lung Disease, Tehran, Iran, aimed to evaluate the effect of concomitant pulmonary hypertension on the outcome of pulmonary tuberculosis.Methods:New cases of pulmonary tuberculosis were recruited for the study. Pulmonary hypertension was defined as systolic pulmonary arterial pressure ≥35 mm Hg estimated by transthoracic Doppler echocardiography. We assessed the relationship between pulmonary hypertension and mortality during the six-month treatment of tuberculosis.Results:Of 777 new cases of pulmonary tuberculosis, 74 (9.5%) had systolic pulmonary arterial pressure ≥35 mm Hg. Ten of them (13.5%) died during treatment compared to 5% of cases with pulmonary arterial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Pulmonary hypertension; Echocardiography; Survival. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000500487 |
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| Pazin-Filho,A.; Romano,M.M.D.; Almeida-Filho,O.C.; Furuta,M.S.; Viviani,L.F.; Schmidt,A.; Marin-Neto,J.A.; Maciel,B.C.. |
| Recent data from our laboratory have shown that patients with the indeterminate form of Chagas' disease can have impairment of left ventricular contractility, as evaluated by the slope of the left ventricle end-systolic pressure-dimension relationship. We also showed that Chagas' disease patients with minimal baseline wall motion abnormalities detected by two-dimensional echocardiography have more intense contractility impairment when compared to patients with the indeterminate form of the disease without this abnormality. The prognostic implications of these findings have not been established. We evaluated 59 patients (37-76 years, mean = 55 years) with different clinical forms of Chagas' disease, who had normal left ventricular global systolic function... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Echocardiography; Chagas' disease; Left ventricular function; Indeterminate form of Chagas' disease. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000400008 |
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| Silva,A.C.; Muzzi,R.A.L.; Oberlender,G.; Muzzi,L.A.L.; Coelho,M.R.; Nogueira,R.B.. |
| Mitral flow propagation velocity (Vp) is an index used to evaluate the left ventricular diastolic function. Its influence on human and small animal cardiopathies has been studied; however there are few reports evaluating this variable in domestic felines. In addition, there is a lack of studies in non-sedated healthy cats. Therefore, the purpose of this study was to establish values for Vp and its correlation with other echocardiographic indexes in non-sedated healthy cats in order to provide new perspectives related to diastolic function in this species. Twenty-six clinically healthy cats were submitted to echocardiography to assess the animals' cardiac conditions. Variables such as age, heart rate (HR), body surface area (BSA), initial (E mitral) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feline; Cardiopathies; Echocardiography; Diastolic function. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000100003 |
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| Registros recuperados: 26 | |
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