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Related Experiment Video

Updated: Nov 17, 2025

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Persistent Left Superior Vena Cava: A Finding After Central Venous Catheterization.

Francisco Lopes Morgado1, Bárbara Saraiva1, Celestina Blanco Torres1

  • 1Internal Medicine Department, Unidade Local de Saúde da Guarda, Guarda, Portugal.

European Journal of Case Reports in Internal Medicine
|February 15, 2021
PubMed
Summary
This summary is machine-generated.

Persistent left superior vena cava (LSVC) is a rare anomaly. Recognizing this variant is crucial for safe central venous catheterization and avoiding potential complications during medical procedures.

Keywords:
Superior vena cavacentral venous catheterization

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Area of Science:

  • Anatomical Variants
  • Vascular Anatomy
  • Medical Imaging

Background:

  • Persistent left superior vena cava (LSVC) is a rare anatomical variant with an incidence of 0.3-0.5% in healthy individuals.
  • Often diagnosed incidentally during imaging for central venous catheter (CVC) placement.

Purpose of the Study:

  • To highlight the clinical significance of LSVC during invasive procedures.
  • To emphasize the importance of recognizing LSVC to prevent complications.

Main Methods:

  • Case report of a patient requiring central venous catheterization for chemotherapy.
  • Utilized computed tomography (CT) to confirm catheter position and identify LSVC.

Main Results:

  • Central venous catheterization was challenging, with the tip in an unusual position.
  • CT confirmed the presence of LSVC; the patient completed treatment without CVC-related complications.

Conclusions:

  • LSVC, though uncommon, significantly impacts clinical practice, especially during invasive procedures.
  • Early recognition of LSVC is vital to minimize potential procedural complications.
  • Diagnosis often requires advanced imaging like CT, complementing chest X-rays and echocardiography.