Luiz Eduardo Montenegro Camanho

• Universidade do Estado Rio de Janeiro

Background Conduction system pacing (CSP) (His bundle pacing and left bundle pacing) is a group of techniques intended to achieve cardiac pacing with a narrow QRS complex through a lead directly inserted in conduction system structures. The safety and effectiveness of this technique are not yet fully understood. Purpose To describe the short-term...

Background The use of ionizing radiation in medical procedures is associated with significant health risks for patients and the health care team. Objectives Evaluate the safety and acute efficacy of ablation for atrial fibrillation (AF) and supraventricular arrhythmias (SVTs) using an exclusively non-fluoroscopic approach guided by intracardiac ec...

Fundamental Cardiac resynchronization therapy (CRT) reduces total mortality in patients (pt) with advanced heart failure (HF). However, the impact of this reduction is unknown in the different types of response. Objective To describe the survival of responders and super responders pt to CRT in a retrospective cohort. Methods 250 pt who underwent...

The evaluation of the defibrillation threshold (DFT) during the implantation of a cardioverter-defibrillator (ICD) is an important stage of the procedure, as a high DFT can be found in up to 16% of patients. We report a patient with idiopathic dilated cardiomyopathy (DCM) submitted to a biventricular ICD implantation. During the procedure, the...

In the past two years we observed several changes in the diagnostic and therapeutic approach of patients with acute heart failure (acute HF), which led us to the need of performing a summary update of the II Brazilian Guidelines on Acute Heart Failure 2009. In the diagnostic evaluation, the diagnostic flowchart was simplified and the role of clinic...

The ideal management of oral anticoagulation (OAC) before and after catheter ablation for atrial fibrillation (AF) is still controversial. To compare two anticoagulation strategies for catheter ablation for AF: warfarin withholding and use of low-molecular-weight heparin (LMWH); and maintenance of warfarin and therapeutic INR (between 2.0 and 3.0)....

Long-term cessation of oral anticoagulation (OAC) after catheter ablation of atrial fibrillation (AF) has been deemed controversial. The safety of this management strategy in patients without recurrent AF and with historically elevated risks for thromboembolism remains largely unknown. In this study, we sought to evaluate the long-term results of O...

The intracardiac echocardiography (ICE) offers a detailed visualization of the cardiac structures, in association with hemodynamic information, allowing the precise and real-time positioning of the catheters, decreasing the time of exposure to fluoroscopy and the monitoring of acute complications during the electrophysiological procedure (i.e., for...

Relatamos o caso de uma paciente puérpera, internada com diagnósticos de infecção do trato urinário e insuficiência cardíaca que evoluiu com arritmias ventriculares do tipo torsades de pointes, após hipopotassemia e uso de Ciprofloxacin. Não apresentou supressão das arritmias ventriculares após reposição de potássio e magnésio, mas após implante de...

To assess the clinical, electrocardiographic, and electrophysiologic characteristics of patients (pt) with intra-His bundle block undergoing an electrophysiologic study (EPS). We analyzed the characteristics of 16 pt with second-degree atrioventricular block and symptoms of syncope or dyspnea, or both, undergoing conventional EPS. Intra-His bundle...

Conventional mapping techniques use fluoroscopy and multiple catheters permitted knowledge of various mechanisms and precise definitions of the circuits involved is supraventricular tachycardias (SVT). Although radiofrequency catheter ablation (RFA) is highly effective in curing most of these arrhythmias, some cases might benefit from a more precis...

Objective: To define clinical and/or electrocardiography factors related to the location of the atrial flutter circuit (AF), ascertaining immediate success and recurrence rates over the short and medium terms. Methods: 95 non-consecutive patients with AF underwent an electrophysiological study and catheter ablation, stratified into two groups: Grou...