Arrhythmia Cardiac – ABC CARDIOL

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Editorial

Intracardiac Echocardiography Must Be Used in All Patients Who Underwent AF Ablation?

Cristiano F. Pisani et al. Mauricio Scanavacca

Atrial fibrillation ablation has become a widely used technique in treating patients with atrial fibrillation in the last 20 years due to better knowledge of its pathophysiological mechanisms, evolution in techniques for isolating pulmonary veins, and reduction of complications associated with the procedure. During this period, there have been large investments in new technologies by the industry, mainly in the improvement of images such as electroanatomical mapping systems, development of new catheters and new energies to produce more effective and lasting lesions and also with the use of intracardiac echocardiography (ICE) to add safety in the performance of the procedure to the allow instant visualization of heart structures and their relationships with catheters and sheaths.^,

The ICE is an invasive imaging technique that uses a specialized catheter to deliver ultrasound images from a probe that is located inside the heart. It presents an excellent image definition capable of recognizing in detail the location of the oval fossa and the ostia of the pulmonary veins. Allows monitoring the proper positioning and contact of the catheter tip with the structures of interest during RF application, as well as monitoring the formation of thrombi or microbubbles and alterations in tissue refraction that precede the formation of the so-called “Steam-pops”. Another advantage of the ICE is that it is operated in the field by the electrophysiologist himself, without the need for an echocardiographer.

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IJCS

Case Report

Cardiac Manifestations Associated With Coronavirus Disease: A Case Report

Gabriela Ribeiro Prata Leite Barros et al. Raphaela Tereza Brigolin Garofo Bernardo Noya Alves de Abreu Adriano Camargo de Castro Carneiro André Luiz Esteves Mendonça

Abstract

This study presents a 47-year-old female patient, with a history of diabetes, who contracted SARS-CoV-2 and exhibited cardiovascular complications.

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Original Article

Atrial Strain and Strain Rate: A Novel Method for the Evaluation of Atrial Stunning

Hakan Ozkan et al. Suleyman Binici Erhan Tenekecioglu Hasan Ari Tahsin Bozat

Abstract

Background:

Atrial fibrillation (AF) is the most common arrhythmia seen in adults. Atrial stunning is defined as the temporary mechanical dysfunction of the atrial appendage developing after AF has returned to sinus rhythm (SR).

Objectives:

We aimed to evaluate atrial contractile functions by strain and strain rate in patients with AF, following pharmacological and electrical cardioversion and to compare it with conventional methods.

Methods:

This study included 41 patients with persistent AF and 35 age-matched control cases with SR. All the AF patients included in the study had transthoracic and transesophageal echocardiography performed before and after. Septum (SEPsSR), left atrium (LAsSR) and right atrium peak systolic strain rate (RAsSR) were defined as the maximum negative value during atrial contraction and septum (SEPε), left atrium (LAε) and right atrium peak systolic strain (RAε) was defined as the percentage of change. Parameters of two groups were compared.

Results:

In the AF group, 1st hour and 24th hour LAε, RAε, SEPε, LAsSR, RAsSR, SEPsSR found to be significantly lower than in the control group (LAε: 2.61%±0.13, 3.06%±0.19 vs 6.45%±0.27, p<0.0001; RAε: 4.03%±0.38, 4.50%±0.47 vs 10.12%±0.64, p<0.0001; SEPε: 3.0%±0.22, 3.19%±0.15 vs 6.23%±0.49, p<0.0001; LAsSR: 0.61±0.04s-¹, 0.75±0.04s- ¹ vs 1.35±0.04s-¹, p<0.0001; RAsSR: 1.13±0.06s-¹, 1.23±0.07s-¹ vs 2.10±0.08s- ¹, p<0.0001; SEPsSR: 0.76±0.04s- ¹, 0.78±0.04s- ¹ vs 1.42±0.06 s- ¹, p<0.0001).

Conclusion:

Atrial strain and strain rate parameters are superior to conventional echocardiographic parameters for the evaluation of atrial stunning in AF cases where SR has been achieved.

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Intracardiac Echocardiography Must Be Used in All Patients Who Underwent AF Ablation?

Cardiac Manifestations Associated With Coronavirus Disease: A Case Report

Abstract

Atrial Strain and Strain Rate: A Novel Method for the Evaluation of Atrial Stunning

Abstract

Background:

Objectives:

Methods:

Results:

Conclusion:

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