Publications by authors named "Fernando A Atik"

Background: Echocardiography is essential for the assessment of patients with heart transplants. However, normal values in such individuals are not clearly defined.

Objectives: To compare conventional echocardiographic and speckle tracking variables between patients with unrejected heart transplants and healthy individuals.

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Heart failure (HF) studies typically focus on ischemic and idiopathic heart diseases. Chronic chagasic cardiomyopathy (CCC) is a progressive degenerative inflammatory condition highly prevalent in Latin America that leads to a disturbance of cardiac conduction system. Despite its clinical and epidemiological importance, CCC molecular pathogenesis is poorly understood.

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Article Synopsis
  • Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is a critical treatment for patients experiencing severe early graft dysfunction after heart transplant, and the study aims to analyze mortality rates, complications, and prognostic factors associated with its use.
  • The research involved a systematic review of 49 studies and included individual patient data from 448 patients, revealing a 30-day mortality rate of 33% and a 1-year mortality rate of 50% in those receiving VA-ECMO.
  • The findings highlight the need for further research to improve VA-ECMO strategies, as factors like older age and prior surgeries are linked to higher mortality rates.
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Background: Echocardiographic markers associated with asymptomatic acute cellular rejection (ACR) in patients with orthotopic heart transplant (HT) are still under investigation. The aim of our study was to determine clinical and myocardial strain imaging (MSI) variables evaluated by echocardiography associated with ACR in the first year of HT. A separate analysis was performed to compare variables during the first 6 months of HT, when ACR has a prevalence in 60% of patients.

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Introduction: Combined solid organ transplantation is infrequently performed in Brazil. The objective of this article is to present our initial experience with combined heart and kidney transplantation.

Methods: From January 2007 to December 2019, four patients were submitted to combined heart and kidney transplantation.

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Current risk stratification strategies for coronary artery disease (CAD) have low predictive value in asymptomatic subjects classified as intermediate cardiovascular risk. This is relevant because not all coronary events occur in individuals with traditional multiple risk factors. Most importantly, the first manifestation of the disease may be either sudden cardiac death or acute coronary syndrome, after rupture and thrombosis of an unstable non-obstructive atherosclerotic plaque, which was previously silent.

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Primary cardiac sarcomas are very aggressive, being a challenge to cardio-oncology specialty. Surgical planning and innovative techniques have enhanced the possibility of resection. We have described a case of recurrent primary left atrium angiosarcoma, successfully resected with a modified partial autotransplantation technique, planned using a 3-dimensional model created from computed tomography.

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Introduction: Left ventricular dysfunction after surgical treatment of mitral stenosis is uncommon. We intend to determine the pattern of left ventricular remodeling, shortly after open mitral valve replacement for rheumatic mitral stenosis, with in-hospital postoperative outcomes and the determinants of postoperative worsening of left ventricular ejection fraction.

Methods: From January 2008 to January 2015, 107 adult patients with rheumatic mitral stenosis were submitted to open mitral valve replacement.

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Objective: Heart transplantation in the setting of renal insufficiency is controversial. The objective of this study was to perform a descriptive analysis of patients who underwent orthotopic heart transplantation and renal replacement therapy (RRT) due to acute kidney injury (AKI).

Design: An observational cohort study with retrospective data collection.

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Background: The performance of traditional scores is significantly limited to predict mortality in high-risk cardiac surgery. The aim of this study was to compare the performance of STS, ESII and HiriSCORE models in predicting mortality in high-risk patients undergoing CABG.

Methods: Cross-sectional analysis in the international prospective database of high-risk patients: HiriSCORE project.

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Background: Infection after cardiovascular surgery is multifactorial. We sought to determine whether the anthropometric profile influences the occurrence of infection after isolated coronary artery bypass grafting (CABG).

Methods: Between January 2011 and June 2016, 1777 consecutive adult patients were submitted to isolated coronary artery bypass grafting.

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Background: The effects of rivaroxaban in patients with atrial fibrillation and a bioprosthetic mitral valve remain uncertain.

Methods: In this randomized trial, we compared rivaroxaban (20 mg once daily) with dose-adjusted warfarin (target international normalized ratio, 2.0 to 3.

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The efficacy and safety of rivaroxaban in patients with bioprosthetic mitral valves and atrial fibrillation or flutter remain uncertain. DESIGN: RIVER was an academic-led, multicenter, open-label, randomized, non-inferiority trial with blinded outcome adjudication that enrolled 1005 patients from 49 sites in Brazil. Patients with a bioprosthetic mitral valve and atrial fibrillation or flutter were randomly assigned (1:1) to rivaroxaban 20 mg once daily (15 mg in those with creatinine clearance <50 mL/min) or dose-adjusted warfarin (target international normalized ratio 2.

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Background And Aim Of The Study: In developed countries, the shortage of viable donors is the main limiting factor of heart transplantation. The aim of this study is to determine whether the same reality applies to Brazil.

Methods: Between January 2012 and December 2014, 299 adult heart donor offers were studied in terms of donor profiles and reasons for refusal.

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Background And Aim: Complications of inferior vena cava filters are relatively common, and they vary according to different filter types and designs. We aim to present a case of penetrated inferior vena cava filter into the liver.

Methods: Case report.

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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, who had echocardiography performed within the first 30 days after surgery, were retrospectively analyzed.

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Introduction: Coronary artery bypass grafting (CABG) is the most frequently performed heart surgery in Brazil. Recent international guidelines recommend that national societies establish a database on the practice and results of CABG. In anticipation of the recommendation, the BYPASS Registry was introduced in 2015.

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