08Jun 2017

PREDICTORS OF ATRIAL FIBRILLATION RECURRENCE AFTER CRYOBALLOON-BASED PULMONARY VEIN ISOLATION.

  • Cardiology and Angiology department, university of Alexandria, Egypt.
  • Laboratorio di Elettrofisiologia ed Elettrostimolazione, Universita` degli Studi, Brescia, Italy.
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The study was designed to explore the role of imaging and clinical parameters as predictors of atrial fibrillation recurrence at 1 year after cryoballoon ablation. We included 70 patients who underwent their first cryoballoon ablation with available pre-procedural cardiac MRI study . We divided them into two groups according to AF recurrence at one year. Group A included 14 patients who developed AF recurrence at one year, while group B included 56 patients who remained arrhythmia-free at one year. Univariate analysis revealed a significant difference between both groups in ; age (66?10 years and 55?10 years, for group A and B respectively, p 0.05), left atrial diameter (47.8 ?6.6 mm and 40.5 ? 5.6 mm, for group A and B respectively, p 0.001), hypertension (71.4% and 28.6% of group A and B patients respectively, p 0.03), persistent AF (50.0% and 19.6% of group A and B patients respectively, p 0.05) and ERAF (57.1% and 12.5% of group A and B patients respectively, p 0.001). In subsequent multivariate regression analysis, the most significant predictor for recurrence is age. The odds of recurrence increased by 20% per one year increase in age. Moreover, one unit increase in left atrial diameter increased the chance of recurrence by 13%. Conclusion; We concluded that age and left atrial diameter are independent predictors for AF recurrence after cryoballoon ablation. We highlight the importance of proper assessment of the risk of arrhythmia recurrence before referring the patient for ablation.

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[Mohamed Sanhoury, Tarek Elzawawy, Mohamed Ayman Abdel-Hay, Mostafa Nawar and Antonio Curnis. (2017); PREDICTORS OF ATRIAL FIBRILLATION RECURRENCE AFTER CRYOBALLOON-BASED PULMONARY VEIN ISOLATION. Int. J. of Adv. Res. 5 (Jun). 48-56] (ISSN 2320-5407). www.journalijar.com

Mohamed Sanhoury
Cardiology and Angiology department, University of Alexandria, Egypt.

DOI:

Article DOI: 10.21474/IJAR01/4380      
DOI URL: http://dx.doi.org/10.21474/IJAR01/4380

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