Silent strokes after thoracoscopic epicardial ablation and catheter ablation for atrial fibrillation: not all lesions are permanent on follow-up magnetic resonance imaging

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F21%3A43921614" target="_blank" >RIV/00216208:11120/21:43921614 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11210/21:10428209 RIV/00216208:11130/21:10428209 RIV/00064173:_____/21:N0000020

Result on the web

<a href="https://doi.org/10.21037/qims-21-35" target="_blank" >https://doi.org/10.21037/qims-21-35</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21037/qims-21-35" target="_blank" >10.21037/qims-21-35</a>

Result language

angličtina

Original language name

Silent strokes after thoracoscopic epicardial ablation and catheter ablation for atrial fibrillation: not all lesions are permanent on follow-up magnetic resonance imaging

Original language description

Background: Invasive treatments for atrial fibrillation (AF) pose a risk of ischemic stroke due to periprocedural brain embolization, which may be manifest or silent. The primary aim of our study was to compare the rate of silent strokes after percutaneous catheter-based and thoracoscopic epicardial ablation for AF. The secondary aim was to evaluate the development of silent strokes over time. Methods: We included 39 subjects (aged 64.1+-8.9 years) treated for persistent symptomatic AF with thoracoscopic ablation and 30 subjects (aged 64.1+-10.5 years) treated for paroxysmal or persistent symptomatic AF with catheter ablation. Subjects underwent brain MRI before and early after the ablation, moreover, the surgical group underwent late MRI 6 months after therapy. On early MRI, the presence of silent strokes and their number and size were evaluated. On late MRI, transformation of previously-detected acute ischemic lesions into chronic infarction or their reversibility were assessed. Results: Initially, different chronic ischemic findings were found in 64% of patients from the surgical group and in 70% from catheter group. Early MRI results: Acute ischemic lesions were detected in 2 (6.7%) subjects (overall 3 lesions sized &lt;5 mm) in the catheter group and in 17 (43.6%) subjects in surgical group. Most subjects in the surgical group showed multiple lesions (88%); 195 lesions were detected, a median 6 (IQR 8) lesions per case. Eighty-two percent of lesions were &lt;5 mm, 12% 5-10 mm, 5% 10-30 mm, and 2% were large territorial ischemia. Only 1 case was symptomatic, the rest were silent strokes. On late MRI, 53.5% of all acute lesions were reversible. Lesions &lt;5 mm were reversible in 63.1% of cases, lesions 5-10 mm were reversible in 21.7% and all lesions larger than 10 mm persisted. In 29.4% of patients all acute ischemic lesions were fully reversible. Conclusions: Periprocedural silent strokes were significantly more common after thoracoscopic epicardial ablation compared to catheter ablation considering both the number of affected patients and number of lesions. The majority of acute ischemic brain lesions were small, up to 5 mm in diameter, roughly half of which were reversible. Reversibility of acute ischemic lesions decreased with size. However, in 29.4% of affected patients, all lesions were fully reversible.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30201 - Cardiac and Cardiovascular systems

Project

<a href="/en/project/NV16-32478A" target="_blank" >NV16-32478A: EndoMaze HYBRID project-a detailed assessment of efficacy and safety of hybrid ablation of persistent and long-standing persistent atrial fibrillation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Quantitative Imaging in Medicine and Surgery

ISSN

2223-4292

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

7

Country of publishing house

CN - CHINA

Number of pages

15

Pages from-to

3219-3233

UT code for WoS article

000651626700002

EID of the result in the Scopus database

2-s2.0-85106437532