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Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
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Ascending Vertical Vein Aneurysm.

Damandeep Singh1, Niraj Nirmal Pandey1, Aprateem Mukherjee1

  • 1Department of Cardiovascular Radiology & Endovascular Interventions, All India Institute of Medical Sciences, New Delhi-110029, India.

Methodist Debakey Cardiovascular Journal
|November 24, 2025
PubMed
Summary
This summary is machine-generated.

This case report details a rare supracardiac total anomalous pulmonary venous connection in a young woman. A membranous web caused vein stenosis and aneurysm, likely due to turbulent blood flow.

Keywords:
computed tomography angiographysupracardiac total anomalous pulmonary venous connectionvertical vein aneurysm

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Vascular Biology

Background:

  • Supracardiac total anomalous pulmonary venous connection (TAPVC) is a rare congenital heart defect.
  • Pulmonary venous return to the systemic circulation can lead to significant hemodynamic alterations.
  • Membranous obstruction of pulmonary venous pathways is an uncommon but critical finding.

Purpose of the Study:

  • To describe a unique case of supracardiac TAPVC with a specific obstructive lesion.
  • To elucidate the potential mechanism behind the development of a vertical vein aneurysm in this context.

Main Methods:

  • Case presentation of a 27-year-old female.
  • Diagnostic imaging using computed tomography angiography (CTA).
  • Analysis of CTA findings to identify anatomical abnormalities and blood flow dynamics.

Main Results:

  • Computed tomography angiography revealed supracardiac TAPVC with an eccentric membranous web.
  • The web was located at the junction of the common chamber and ascending vertical vein.
  • Aneurysmal dilatation of the vertical vein was observed distal to the membranous web.

Conclusions:

  • A thin eccentric membranous web can cause stenosis in the ascending vertical vein in supracardiac TAPVC.
  • Turbulent blood flow distal to the stenosis may contribute to the development of vertical vein aneurysms.
  • Accurate anatomical and hemodynamic assessment via CTA is crucial for understanding such complex vascular anomalies.