Korean J Intern Med.  2001 Jun;16(2):69-74.

Restoration of Atrial Mechanical Function after Successful Radio-Frequency Catheter Ablation of Atrial Flutter

• Rhee KS
• Kang DH
• Song JK
• Nam GB
• Choi KJ
• Kim YH

Abstract

BACKGROUND: Atrial mechanical dysfunction and its recovery time course after successful radiofrequency ablation of chronic atrial flutter (AFL) has been largely unknown. We serially evaluated left atrial function by echocardiography after successful ablation of chronic atrial flutter. METHODS: In 13 patients with chronic AFL, mitral E wave A wave, and the ratio of A/E velocity were measured at 1 day, 1 month, 3 months and 6-12 months after successful radiofrequency (RF) ablation. Doppler tissue imaging (DTI) technique was also used to avoid load-dependent variation in the flow velocity pattern. RESULTS: Left atrial mechanical function, assessed by A wave velocity and the annular motion, was depressed at 1 day, but improved significantly at 1 month and maintained through 6-12 months after the ablation. Left atrial size did not change significantly. CONCLUSION: Left atrial mechanical function was depressed immediately after successful RF ablation of chronic AFL, but it improved significantly after 1 month and was maintained over one year.

Keyword

Flutter; Atrial; Catheter ablation; Function, Atrial

MeSH Terms

Adult
Aged
Atrial Flutter/*surgery/*ultrasonography
Atrial Function
Catheter Ablation/*methods
Echocardiography, Doppler
Female
Follow-Up Studies
Human
Male
Middle Age
Sensitivity and Specificity
Treatment Outcome