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Clinical Trial
. 2009 Sep;25(3):167-70.
doi: 10.1007/s10840-008-9349-4. Epub 2009 Jan 16.

Assessment of left atrial shape and volume in structural remodeling secondary to atrial fibrillation

Mariana Floria  1 , Dominique Blommaert, Marc Lacrosse, Valentin Ambarus, Fabien Dormal, Lara Dabiri Abkenari, Jacques Jamart, Ciprian Rezus, Dragos Cozma, Luc De Roy
Affiliations
Clinical Trial

Assessment of left atrial shape and volume in structural remodeling secondary to atrial fibrillation

Mariana Floria et al. J Interv Card Electrophysiol. 2009 Sep.

Abstract

Purpose: Assessment of volume in relation with left atrial (LA) shape alteration before and after PV isolation.

Methods: We compared trapezoidal modification of LA using echocardiography with the ellipsoid formula (EEL: ) and CT, with both ellipsoid (CTEL: ) and truncated cone formulas (CTTR: ), in 40 patients, before and +/-3 months after AF ablation.

Results: A trapezoidal shape was present in 76.3% of patients. The different volume measurements were statistically correlated (r = 0.603-0.837, p < 0.001) irrespective of the formula used. After reverse remodeling, with 77.5% of patients in stable sinus rhythm, correlation coefficient for volume remained significant (p < 0.001).

Conclusions: In AF, dilation of the LA is associated with a geometrical trapezoidal change in many cases. The CT truncated cone formula applies best for precise evaluation of trapezoidal shape alteration in dilated AF atria. There is a good correlation between CTTR: and echocardiography which remains a valuable estimation for volume calculation in clinical practice.

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References

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