Same-same, but different? Postoperative rhythm disturbances and other analysis after rotational Z-flap vs. patch repair of sinus venosus atrial defects - Takeaways - MDSpire
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Comparative Analysis of Postoperative Arrhythmias Following Rotational Z-Flap Versus Patch Repair Techniques for Sinus Venosus Atrial Septal Defects

  • By

  • Raphael Groß

  • Melika Hajymiri

  • Mohamed Elbayomi

  • Frank Harig

  • Friedrich Mellert

  • Robert Cesnjevar

  • Presheet Pathare

  • June 17, 2026

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  • 1

    The study compared postoperative arrhythmias between two techniques for correcting sinus venosus atrial septal defects: patch repair and rotational Z-flap.

  • 2

    Operative times were significantly shorter for the Z-flap technique, with total times of 182.6 minutes compared to 209 minutes for the baffle group.

  • 3

    Postoperative rhythm disturbances occurred in 54.5% of patients, with right bundle branch block being the most common at 40.1%.

  • 4

    The Z-flap group had a higher incidence of sinoatrial block with junctional rhythm at 17.5%, compared to 4.3% in the baffle group.

  • 5

    Both surgical methods are effective, but the Z-flap technique, while more efficient, carries a higher risk of postoperative junctional rhythms.

Original Source(s)

Same-same, but different? Postoperative rhythm disturbances and other analysis after rotational Z-flap vs. patch repair of sinus venosus atrial defects

  • by Raphael Groß, Melika Hajymiri, Mohamed Elbayomi, Frank Harig, Friedrich Mellert, Robert Cesnjevar, Presheet Pathare

  • June 17, 2026

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