The effects of the Cox maze procedure on atrial function.

ABSTRACT:

Objective

The effects of the Cox maze procedure on atrial function remain poorly defined. The purpose of this study was to investigate the effects of a modified Cox maze procedure on left and right atrial function in a porcine model.

Methods

After cardiac magnetic resonance imaging, 6 pigs underwent pericardiotomy (sham group), and 6 pigs underwent a modified Cox maze procedure (maze group) with bipolar radiofrequency ablation. The maze group had preablation and immediate postablation left and right atrial pressure-volume relations measured with conductance catheters. All pigs survived for 30 days. Magnetic resonance imaging was then repeated for both groups, and conductance catheter measurements were repeated for the right atrium in the maze group.

Results

Both group

SUBMITTER: Voeller RK 

PROVIDER: S-EPMC2868590 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature