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Arquivos Brasileiros de Cardiologia

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https://www.readbyqxmd.com/read/29723329/atherosclerotic-plaque-in-patients-with-zero-calcium-score-at-coronary-computed-tomography-angiography
#1
Fabíola Santos Gabriel, Luiz Flávio Galvão Gonçalves, Enaldo Vieira de Melo, Antônio Carlos Sobral Sousa, Ibraim Masciarelli Francisco Pinto, Sara Melo Macedo Santana, Carlos José Oliveira de Matos, Maria Júlia Silveira Souto, Flávio Mateus do Sacramento Conceição, Joselina Luzia Menezes Oliveira
BACKGROUND: In view of the high mortality for cardiovascular diseases, it has become necessary to stratify the main risk factors and to choose the correct diagnostic modality. Studies have demonstrated that a zero calcium score (CS) is characteristic of a low risk for cardiovascular events. However, the prevalence of individuals with coronary atherosclerotic plaques and zero CS is conflicting in the specialized literature. OBJECTIVE: To evaluate the frequency of patients with coronary atherosclerotic plaques, their degree of obstruction and associated factors in patients with zero CS and indication for coronary computed tomography angiography (CCTA)...
May 3, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29723328/paroxysmal-atrial-fibrillation-in-females-understanding-gender-diferences
#2
Gabriel Odozynski, Alexander Romeno Janner Dal Forno, Andrei Lewandowski, Hélcio Garcia Nascimento, André d'Avila
BACKGROUND: The catheter ablation of atrial fibrillation (AF) is performed less frequently in women. In addition, there is divergent information in the literature regarding the effectiveness and safety for the ablative procedure to females. OBJECTIVES: The objective of this study was to compare the clinical characteristics and outcomes in men and women undergoing paroxysmal atrial fibrillation (PAF) ablation. METHODS: Cohort study of patients undergoing first-ever PAF catheter ablation procedure refractory to antiarrhythmic drugs...
May 3, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29641646/frequency-of-subclinical-atherosclerosis-in-brazilian-hiv-infected-patients
#3
Péricles Sidnei Salmazo, Silméia Garcia Zanati Bazan, Flávio Gobbis Shiraishi, Rodrigo Bazan, Katashi Okoshi, João Carlos Hueb
BACKGROUND: AIDS as well as atherosclerosis are important public health problems. The longer survival among HIV-infected is associated with increased number of cardiovascular events in this population, and this association is not fully understood. OBJECTIVES: To identify the frequency of subclinical atherosclerosis in HIV-infected patients compared to control subjects; to analyze associations between atherosclerosis and clinical and laboratory variables, cardiovascular risk factors, and the Framingham coronary heart disease risk score (FCRS)...
April 9, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29641645/association-between-microvolt-t-wave-alternans-and-malignant-ventricular-arrhythmias-in-chagas-disease
#4
Bárbara Carolina Silva Almeida, André Assis Lopes do Carmo, Marco Paulo Tomaz Barbosa, José Luiz Padilha da Silva, Antonio Luiz Pinho Ribeiro
BACKGROUND: Sudden cardiac death is the most frequent death mechanism in Chagas disease, responsible for 55% to 65% of the deaths of patients with chronic Chagas cardiomyopathy (CCC). The most often involved electrophysiological mechanisms are ventricular tachycardia and ventricular fibrillation. The implantable cardioverter defibrillator (ICD) has a beneficial role in preventing sudden death due to malignant ventricular arrhythmias, and, thus the correct identification of patients at risk is required...
April 9, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29561966/short-term-and-mid-term-clinical-outcomes-following-hybrid-coronary-revascularization-versus-off-pump-coronary-artery-bypass-a-meta-analysis
#5
Li Dong, Yi-Kun Kang, Xiang-Guang An
BACKGROUND: Off-pump coronary artery bypass grafting (OPCAB) is one of the standard treatments for coronary artery disease (CAD) while hybrid coronary revascularization (HCR) represents an evolving revascularization strategy. However, the difference in outcomes between them remains unclear. OBJECTIVE: We performed a meta-analysis to compare the short-term and mid-term outcomes of HCR versus OPCAB for the treatment of multivessel or left main CAD. METHODS: We searched the PubMed, EMBASE, Web of Science and Cochrane databases to identify related studies and a routine meta-analysis was conducted...
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29561965/heart-rate-and-its-variability-assessed-by-spectral-analysis-in-elderly-subjects-with-orthostatic-hypotension-a-case-control-study
#6
Rose Mary Ferreira Lisboa da Silva, Carlos Eduardo de Souza Miranda, Maira Tonidandel Barbosa, Maria Aparecida Camargos Bicalho
BACKGROUND: The prevalence of orthostatic hypotension (OH) increases with age and is associated with changes in autonomic regulation of blood pressure (BP) and heart rate (HR). OBJECTIVE: to assess HR and HR variability (HRV) in elderly subjects with OH and determine OH predictors. METHODS: a total of 105 patients aged ≥ 60 years, 39 with OH (case group) and 66 without OH (control group) (age-matched) were studied. Patients underwent clinical assessment, electrocardiogram, biochemistry tests and Holter monitoring for spectral analysis of HRV (Fourier transform) in the supine and orthostatism positions to identify low frequency (LF) and high frequency (HF) components, as well as the LF/HF ratio...
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29561964/mid-term-results-of-surgical-treatment-of-atrial-fibrillation-in-valvular-heart-disease-assesed-by-speckle-tracking-echocardiography
#7
Natalia Lorenzo, Irene Mendez, Mikel Taibo, Gianfranco Martinis, Sara Badia, Guillermo Reyes, Rio Aguilar
BACKGROUND: Atrial fibrillation frequently affects patients with valvular heart disease. Ablation of atrial fibrillation during valvular surgery is an alternative for restoring sinus rhythm. OBJECTIVES: This study aimed to evaluate mid-term results of successful atrial fibrillation surgical ablation during valvular heart disease surgery, to explore left atrium post-ablation mechanics and to identify predictors of recurrence. METHODS: Fifty-three consecutive candidates were included...
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29538506/safety-and-efficacy-of-aerobic-exercise-training-associated-to-non-invasive-ventilation-in-patients-with-acute-heart-failure
#8
Mayron F Oliveira, Rita C Santos, Suellen A Artz, Vanessa M F Mendez, Denise M L Lobo, Edileide B Correia, Almir S Ferraz, Iracema I K Umeda, Priscila A Sperandio
BACKGROUND: Exercise training (ET) improves functional capacity in chronic heart failure (HF). However, ET effects in acute HF are unknown. OBJECTIVE: To investigate the effects of ET alone or combined with noninvasive ventilation (NIV) compared with standard medical treatment during hospitalization in acute HF patients. METHODS: Twenty-nine patients (systolic HF) were randomized into three groups: control (Control - only standard medical treatment); ET with placebo NIV (ET+Sham) and ET+NIV (NIV with 14 and 8 cmH2O of inspiratory and expiratory pressure, respectively)...
March 12, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29538505/vimentin-and-anti-vimentin-antibodies-in-chagas-disease
#9
Marilda Savoia Nascimento, Anna Maria Simonsen Stolf, Heitor Franco de Andrade Junior, Ramendra Pati Pandey, Eufrosina Setsu Umezawa
BACKGROUND: Vimentin is a main structural protein of the cell, a component of intermediate cell filaments and immersed in cytoplasm. Vimentin is mimicked by some bacterial proteins and anti-vimentin antibodies occur in autoimmune cardiac disease, as rheumatic fever. In this work we studied vimentin distribution on LLC-MK2 cells infected with T. cruzi and anti-vimentin antibodies in sera from several clinical pictures of Chagas' disease or American Trypanosomiasis, in order to elucidate any vimentin involvement in the humoral response of this pathology...
March 12, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29538504/infection-in-patients-with-decompensated-heart-failure-in-hospital-mortality-and-outcome
#10
Juliano Novaes Cardoso, Carlos Henrique Del Carlo, Mucio Tavares de Oliveira Junior, Marcelo Eidi Ochiai, Roberto Kalil Filho, Antônio Carlos Pereira Barretto
BACKGROUND: Heart failure (HF) is a syndrome, whose advanced forms have a poor prognosis, which is aggravated by the presence of comorbidities. OBJECTIVE: We assessed the impact of infection in patients with decompensated HF admitted to a tertiary university-affiliated hospital in the city of São Paulo. METHODS: This study assessed 260 patients consecutively admitted to our unit because of decompensated HF. The presence of infection and other morbidities was assessed, as were in-hospital mortality and outcome after discharge...
March 12, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29538503/impact-of-a-high-intensity-training-on-ventricular-function-in-rats-after-acute-myocardial-infarction
#11
Simone de Campos Neitzke Winter, Rafael Michel de Macedo, Júlio Cesar Francisco, Paula Costa Santos, Ana Paula Sarraff Lopes, Leanderson Franco de Meira, Katherine A Teixeira de Carvalho, José Rocha Faria Neto, Ana Carolina Brandt de Macedo, Luiz César Guarita-Souza
BACKGROUND: Physical exercise should be part of the treatment of post-acute myocardial infarction (AMI) patients. OBJECTIVE: To evaluate the effects of two training prescription models (continuous x interval) and its impact on ventricular function in rats after AMI with normal ventricular function. METHODS: Forty Wistar rats were evaluated by echocardiography 21 days after the AMI. Those with LVEF = 50% (n = 29) were included in the study and randomized to control group (CG n = 10), continuous training group (CTG n = 9) or interval training group (ITG, n = 10)...
March 12, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29538502/association-of-monocyte-count-on-admission-with-the-angiographic-thrombus-burden-in-patients-with-st-segment-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention
#12
Zuoyan Wang, Na Liu, Lihui Ren, Licheng Lei, Huiming Ye, Jianjun Peng
BACKGROUND: The intracoronary high-thrombus burden during the primary percutaneous coronary intervention in patients with ST-elevation myocardial infarction (STEMI) can lead to poor outcomes. Monocytes have been described to play an important role in thrombotic disorders. OBJECTIVES: This study aimed to investigate the relationship between admission monocyte count and angiographic intracoronary thrombus burden in patients receiving primary percutaneous coronary intervention (PPCI)...
March 12, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791582/incidence-of-atrial-high-rate-episodes-in-chagas-disease-patients
#13
Emanoela Lima Freitas, Elieusa E Silva Sampaio, Roque Aras
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791581/simultaneous-dual-coronary-fistulas
#14
Ioannis Ntalas, John B Chambers, Júlia Karády, Ronak Rajani
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791580/influence-of-aerobic-training-on-the-mechanics-of-ventricular-contraction-after-acute-myocardial-infarction-a-pilot-study
#15
Giovani Luiz De Santi, Henrique Turin Moreira, Eduardo Elias Vieira de Carvalho, Júlio César Crescêncio, André Schmidt, José Antônio Marin-Neto, Lourenço Gallo-Júnior
The study of myocardial contractility, based on the new anatomical concepts that govern cardiac mechanics, represents a promising strategy of analysis of myocardial adaptations related to physical training in the context of post-infarction. We investigated the influence of aerobic training on physical capacity and on the evaluation parameters of left ventricular contraction mechanics in patients with myocardial infarction. Thirty-one patients (55.1 ± 8.9 years) who had myocardial infarction in the anterior wall were prospectively investigated in three groups: interval training group (ITG) (n = 10), moderate training group (MTG) n = 10) and control group (CG) (n = 10)...
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791579/case-2-2018-73-year-old-male-with-ischemic-cardiomyopathy-cachexia-and-shock
#16
Rafael Amorim Belo Nunes, Jussara de Almeida Bruno, Hilda Sara Monteiro Ramirez, Léa Maria Macruz Ferreira Demarchi
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791578/high-intensity-interval-training-for-early-post-acute-myocardial-infarction-a-promising-approach-for-rats-but-what-about-human-beings
#17
Ricardo Stein
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791577/speckle-tracking-echocardiography-ready-for-use-in-acute-coronary-syndrome
#18
Brivaldo Markman Filho
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791576/catheter-ablation-for-atrial-fibrillation-in-patients-with-heart-failure
#19
Mauricio Scanavacca, Edimar Alcides Bocchi
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29791575/primary-ventricular-fibrillation-in-a-patient-with-mild-hypercalcemia
#20
Rita Marinheiro, Leonor Parreira, Pedro Amador, Francisco Sardinha, Sara Gonçalves, Sónia Serra
No abstract text is available yet for this article.
April 2018: Arquivos Brasileiros de Cardiologia
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