Publications by authors named "Jacob Atie"
Article Synopsis
- Electrical storm (ES) is a serious condition characterized by repeated episodes of dangerous heart rhythms (ventricular arrhythmias) occurring within 24 hours, requiring medical intervention.
- It mainly affects patients with existing heart issues or those with implantable cardioverter-defibrillators (ICDs), and it poses significant health risks despite advanced treatments.
- The increasing number of older patients with heart conditions and ICDs suggests that the incidence of ES is likely to rise, prompting the need for comprehensive management strategies and a multi-disciplinary approach.
Analysis of Three-Dimensional Scar Architecture and Conducting Channels by High-Resolution Contrast-Enhanced Cardiac Magnetic Resonance Imaging in Chagas Heart Disease.
Rev Soc Bras Med Trop
October 2022
Background: We aimed to describe the morphology of the border zone of viable myocardium surrounded by scarring in patients with Chagas heart disease and study their association with clinical events.
Methods: Adult patients with Chagas heart disease (n=22; 55% females; 65.5 years, SD 10.
Background: Chagas heart disease (CHD) is a slow progressing condition with fibrosis as the main histopathological finding.
Objectives: To study if cardiac fibrosis increases over time and correlates with increase in left ventricular (LV) size and reduction of ejection fraction (EF) in chronic CHD.
Methods: Retrospective study that included 20 individuals (50% men; 60±10 years) with chronic CHD who underwent two cardiac magnetic resonance imaging (MRI) with late gadolinium enhancement with a minimum interval of four years between tests.
Aims: Atrial-oesophageal fistula is a serious complication related to ablation of atrial fibrillation. As its occurrence is rare, there is a great lack of information about their mechanisms, incidence, presentations, and treatment. The objective of this manuscript is to present a series of cases of atrial-oesophageal fistula in Brazil, focusing on incidence, clinical presentation, and follow-up.
View Article and Find Full Text PDFBackground: To evaluate in vivo the feasibility and safety of renal sympathetic denervation (RSD) with different catheters and various radiofrequency protocols.
Methods And Results: Twenty-two pigs were included. First 2 pigs were enrolled in a feasibility protocol using one catheter and power from 5 W to 20 W.
Background: Studies on atrial fibrillation (AF) in decompensated heart failure (DHF) are scarce in Brazil.
Objectives: To determine AF prevalence, its types and associated factors in patients hospitalized due to DHF; to assess their thromboembolic risk profile and anticoagulation rate; and to assess the impact of AF on in-hospital mortality and hospital length of stay.
Methods: Retrospective, observational, cross-sectional study of incident cases including 659 consecutive hospitalizations due to DHF, from 01/01/2006 to 12/31/2011.
Background: Aiming to define the profile of curative atrial fibrillation (AF) ablation in Brazil, the Brazilian Cardiac Arrhythmia Society [Sociedade Brasileira de Arritmias Cardíacas] (SOBRAC) created the Brazilian Registry of AF Ablation [Registro Brasileiro de Ablação da FA].
Objective: To describe the results of this registry.
Methods: A questionnaire was sent to SOBRAC members asking about data on patients submitted to AF ablation between September 2005 and November, 2006.
Background And Objectives: Remifentanil is an opiod with fast onset of action and short acting, and its use in short-duration procedures has increased in the last few years. Bradycardia and asystole are among the side effects reported. The objective of this study was to evaluate the effects of this drug in cardiac conduction and refractory period in human beings.
View Article and Find Full Text PDFObjectives: To analyze the success of circumferential ablation of atrial fibrillation and to investigate possible clinical and electroanatomic predictors of recurrence of cardiac arrhythmia.
Methods: 104 consecutive patients free of structural heart disease and refractory to at least two antiarrhythmic drugs, and undergoing circumferential ablation for the treatment of paroxysmal/persistent atrial fibrillation were analyzed. Seventy two patients were males and the mean age of the group was 58.
Objective: To report appropriate (AT) and inappropriate (IT) ICD therapies in patients with ischemic and nonischemic heart disease, as well as early and late procedure-related complications.
Methods: One hundred and fifty-five patients (119 male and 36 female), mean age 47 years (21-88), who underwent ICD implantation between 1994 and March 2003 were analyzed. Patients were divided into the following groups: Group I--Post-AMI patients (n = 80); Group II--Patients with nonischemic heart disease and LV ejection fraction < 40% (n = 45), Chagas disease (n = 18), idiopathic dilated cardiomyopathy (n= 12), hypertensive disease (n = 8), hypertrophic cardiomyopathy (n = 4) and valvular heart disease (n = 3); Group III--Patients with arrhythmogenic right ventricular dysplasia (n = 13); and Group IV--Patients with channelopathies: Brugada Syndrome (n = 8) and idiopathic ventricular arrhythmias (n = 9).
The case of a patient with recurrent ventricular fibrillation secondary to an aortic tumor is reported. Ventricular fibrillation occurs secondary to ischemia, arrhythmia, or congenital disease, or it may be an idiopathic event. Irreversible and recurrent situations require placement of an implantable cardioverter defibrillator (ICD).
View Article and Find Full Text PDFObjective: To assess the clinical, electrocardiographic, and electrophysiologic characteristics of patients (pt) with intra-His bundle block undergoing an electrophysiologic study (EPS).
Methods: We analyzed the characteristics of 16 pt with second-degree atrioventricular block and symptoms of syncope or dyspnea, or both, undergoing conventional EPS.
Results: Intra-His bundle block was documented in 16 pt during an EPS.