Case Report: Fenestration-free non-obstructive left atrial membrane overlapping with the cor triatriatum spectrum: multimodality imaging and three-year follow-up - Takeaways - MDSpire

Case Report: Fenestration-free non-obstructive left atrial membrane overlapping with the cor triatriatum spectrum: multimodality imaging and three-year follow-up

  • By

  • Ali Hakan Konuş

  • June 10, 2026

  • 0 min

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  • 1

    A 23-year-old woman presented with a non-obstructive left atrial membrane characterized by multimodal imaging without hemodynamic compromise.

  • 2

    Transesophageal echocardiography revealed a membrane attached to the interatrial septum, with normal mitral inflow and preserved left atrial appendage emptying.

  • 3

    Contrast-enhanced cardiac CT confirmed the membrane's anatomical configuration and spatial relationship to the left atrial appendage and pulmonary veins.

  • 4

    Conservative management was adopted, and the patient remained asymptomatic with no complications over a three-year follow-up period.

  • 5

    The case highlights that anatomical continuity in left atrial membranes does not imply functional obstruction, emphasizing the need for integrated imaging assessment.

Original Source(s)

Case Report: Fenestration-free non-obstructive left atrial membrane overlapping with the cor triatriatum spectrum: multimodality imaging and three-year follow-up

  • by Ali Hakan Konuş

  • June 10, 2026

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