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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

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Pathophysiological background and prognosis of common atrial flutter in non-elderly patients: Comparison to Atrial

Haruhiro Takahira1, Takatsugu Kajiyama2, Yusuke Kondo1

  • 1Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan.

Journal of Cardiology
|June 18, 2021
PubMed

Insights

Common atrial flutter (CAFL) patients undergoing ablation are younger and have more heart disease than atrial fibrillation (AF) patients. CAFL may indicate broader atrial damage, though long-term outcomes are similar.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Internal Medicine

Background:

  • Distinguishing patient profiles and prognoses for catheter ablation in non-elderly atrial fibrillation (AF) and common atrial flutter (CAFL) remains unclear.
  • Understanding these differences is crucial for targeted treatment strategies in younger patient populations.

Purpose of the Study:

  • To investigate and compare the patient background and clinical characteristics of non-elderly individuals undergoing catheter ablation for CAFL versus AF.
  • To identify potential differences in underlying conditions and post-ablation outcomes between these two groups.

Main Methods:

  • A retrospective analysis of 196 patients under 60 years old who underwent catheter ablation for CAFL or AF was conducted.
  • Patient demographics, echocardiographic findings, electrocardiographic (ECG) abnormalities during sinus rhythm, and clinical outcomes post-ablation were analyzed.
  • Patients with both atrial flutter and atrial fibrillation were excluded to ensure distinct group comparisons.

Main Results:

  • Common atrial flutter (CAFL) patients were younger and more frequently had organic heart disease (OHD) compared to atrial fibrillation (AF) patients.
  • Excluding OHD, CAFL patients exhibited more frequent ECG abnormalities during sinus rhythm.
  • No significant differences were observed in all-cause mortality, heart failure onset, or cerebral strokes between the groups.
  • A significantly higher rate of pacemaker implantation was noted in the CAFL group compared to the AF group.

Conclusions:

  • Common atrial flutter (CAFL) in non-elderly patients may be associated with more widespread atrial myocardial disorder, even in the absence of overt heart failure.
  • These findings suggest distinct underlying pathophysiological mechanisms between CAFL and AF in younger populations.
  • Further research is warranted to explore the long-term implications of these differences.
Abstract

Keywords:
Atrial fibrillationCommon atrial flutterNon-elderlyPacemakerPrognosis

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