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July 24, 2017Journal of Cardiothoracic SurgeryOpen Access

Impact of ablation duration on rhythm outcome after concomitant maze procedure using cryoablation in patients with persistent atrial fibrillation

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Why the study?

Does long duration cryoablation improve the absence of atrial fibrillation in patients with persistent atrial fibrillation undergoing a concomitant maze procedure?

Population

256 consecutive patients with chronic/persistent atrial fibrillation undergoing a concomitant maze procedure…

Comparison

Long duration cryoablation vs Standard duration cryoablation

Design

Cohort

Follow-up

24 months

Authors

DJDong Seop JeongJYJi Hoon YouCJChang-Seok Jeon

Discussion

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Overview

Longer ablation duration was associated with higher AF freedom; leaves open optimal protocols for randomized trials.

Structured PICO

Does long duration cryoablation improve the absence of atrial fibrillation in patients with persistent atrial fibrillation undergoing a concomitant maze procedure?

P
Population
256 consecutive patients with chronic/persistent atrial fibrillation undergoing a concomitant maze procedure using nitrous oxide-based cryoablation during cardiac surgery
I
Intervention
Long duration cryoablation (160 seconds per lesion)
C
Comparator
Standard duration cryoablation (120 seconds at -60 °C per lesion)
O
Outcome
Absence of atrial fibrillation at 24 monthshard clinical

Increasing cryoablation duration to 160 seconds per lesion during a concomitant maze procedure significantly improves the maintenance of sinus rhythm at 24 months.

Cite This Study

Jeong et al. (2017) studied this question.

synapsesocial.com/papers/6a90ea62263aa8e25c73cd49https://doi.org/10.1186/s13019-017-0620-6
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of Radiofrequency Ablation and Cryoablation for the Recovery of Atrial Contractility and Survival2018 · 13 citations
  2. 2Cryoablation of the left posterior atrial wall: 95 patients and 3 years of mean follow-up2003 · 31 citations
  3. 3Effect of Left Atrial Activity After the Maze Procedure on Clinical and Echocardiographic Outcomes2014 · 11 citations
  4. 4The efficacy of the Cox/maze procedure combined with mitral valve surgery: a matched control study2001 · 187 citations
  5. 5Mid-Term Results of the Cox Maze III Procedure Combined With Open Mitral Commissurotomy for the Treatment of Rheumatic Mitral Stenosis2010 · 14 citations