Abstract
Abstract 9724: Left Atrial Volume Index as a Predictor of Atrial Fibrillation Recurrence After Cardioversion
Circulation (New York, N.Y.), Vol.146(Suppl_1)
11/08/2022
DOI: 10.1161/circ.146.suppl_1.9724
Abstract
Abstract only
Introduction:
The left atrial volume index (LAVI) is a standard measurement of the left atrium. To date, there is limited data on the risk of AF recurrence with different LAVI cut-point. We aim to determine the association of LAVI as a predictor of AF recurrence after external electrical cardioversion (ECV).
Methods:
We conducted a retrospective cohort study using data from a single tertiary care center from January 2013 to December 2019. Patients diagnosed with AF who underwent successful ECV were included with the final follow-up date of December 2020. The effect of LAVI on AF recurrence was determined by Cox regression analysis adjusted by age, sex, BMI, comorbidities, type of AF, ejection fraction, and medications.
Results:
A total of 296 patients, 61.8% male, with a mean age of 69.2 ± 11.2 years old were included with a mean follow-up time of 1 year. Antiarrhythmic drugs were used in 104 patients after the ECV. LAVI ≤ 34 ml/m2 is associated with a lower risk of AF recurrence with an adjusted hazard ratio (aHR) of 0.31 (95%CI: 0.20-0.40). LAVI > 34 to < 40 ml/m2, did not significantly increased the risk of AF recurrence (aHR 1.67, 95%CI: 0.97-2.87). LAVI of ≥ 40 ml/m2 and ≥ 50 ml/m2 significantly increased the risk of AF recurrence with aHR of 4.30 (95%CI: 2.61 - 7.10) and 4.97 (95%CI: 2.97 - 8.33), respectively.
Conclusions:
Normal LAVI is associated with a lower AF recurrence after ECV and LAVI ≥ 40 ml/m2 is associated with increased AF recurrence. LAVI is a predictor to consider before undergoing rhythm management in a patient with atrial fibrillation.
Details
- Title: Subtitle
- Abstract 9724: Left Atrial Volume Index as a Predictor of Atrial Fibrillation Recurrence After Cardioversion
- Creators
- Sittinun Thangjui - Bassett Medical CenterRatdanai Yodsuwan - Bassett Medical CenterHarshith S Thyagaturu - Bassett Medical CenterBishesh Shrestha - Bassett Medical CenterTarun Bathini - cardiovascular sevices, Bassett Med Cntr, cooperstown, NYGayatri Bondi - Bassett Medical CenterJerel Zoltick - Bassett Healthcare Network
- Resource Type
- Abstract
- Publication Details
- Circulation (New York, N.Y.), Vol.146(Suppl_1)
- DOI
- 10.1161/circ.146.suppl_1.9724
- ISSN
- 0009-7322
- eISSN
- 1524-4539
- Language
- English
- Date published
- 11/08/2022
- Academic Unit
- Internal Medicine
- Record Identifier
- 9984695807702771
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