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  11. Left Atrial Volume Index Predicts Atrial Fibrillation Recurrence After Catheter Ablation Only In Obese Patients-brief Report.

Left Atrial Volume Index Predicts Atrial Fibrillation Recurrence after Catheter Ablation Only in Obese Patients-Brief Report.

Franjo Husam Naji1,2, Jan Alatic1, Igor Balevski1

  • 1University Clinical Center, 2000 Maribor, Slovenia.

Diagnostics (Basel, Switzerland)
|July 27, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Left atrial volume index predicts atrial fibrillation recurrence after catheter ablation, but only in obese patients. This suggests different AF mechanisms based on body mass index, requiring further investigation.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Obesity and higher body mass index (BMI) correlate with increased atrial fibrillation (AF) recurrence post-catheter ablation (CA).
  • Left atrial volume index (LAVI) is also linked to AF recurrence and BMI, but its independent prognostic value is unclear.

Purpose of the Study:

  • To investigate whether the prognostic impact of LAVI on AF recurrence after CA is independent of BMI.

Main Methods:

  • Prospective study of 62 patients with paroxysmal AF undergoing radiofrequency CA.
  • Echocardiography performed post-CA to measure cardiac function and morphology.
  • AF recurrence defined as documented AF within 6 months post-procedure.

Main Results:

  • AF recurrence observed in 27% of patients at 6 months.
Keywords:
atrial fibrillationbody mass indexcatheter ablationleft atrial volume index

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  • LAVI predicted AF recurrence significantly only in obese patients (BMI ≥ 30), not in non-obese patients (BMI < 30).
  • No significant difference in recurrence rates between obese and non-obese groups was found.

    • Conclusions:

    • LAVI is a significant predictor of AF recurrence post-successful CA specifically in obese patients.
    • Findings suggest distinct AF mechanisms in obese versus non-obese individuals.
    • Further research is warranted to elucidate these differences.