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Related Concept Videos

Lenz's Law01:15

Lenz's Law

The direction in which the induced emf drives the current around a wire loop can be found through the negative sign. However, it is usually easier to determine this direction with Lenz's law, named in honor of its discoverer, Heinrich Lenz (1804–1865). Lenz's law states that the direction of the induced emf drives the current around a wire loop always to oppose the change in magnetic flux that causes the emf.
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Ambulatory ECG Recording in Mice
08:00

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Published on: May 27, 2010

All is not lost, when lead goes in the wrong direction.

Uma N Srivatsa1, Padraig O'Neill

  • 1UC Davis Medical Center, Sacramento, CA, USA. uma.srivatsa@ucdmc.ucdavis.edu

Indian Pacing and Electrophysiology Journal
|August 9, 2007
PubMed
Summary

A rare left-sided superior vena cava (SVC) anomaly complicates cardiac device implantation. This case demonstrates successful lead placement via the left SVC into right heart chambers, resulting in a unique radiographic appearance.

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Anatomical Variations

Background:

  • Left-sided superior vena cava (SVC) is an uncommon congenital anomaly.
  • This anatomical variation presents challenges for cardiovascular procedures, including device implantation.
  • Understanding these variations is crucial for procedural success and patient safety.

Purpose of the Study:

  • To report a case of cardiac device lead placement in a patient with a left-sided SVC.
  • To illustrate the procedural complexities and radiographic findings associated with this anomaly.
  • To contribute to the literature on managing uncommon venous anomalies during electrophysiological interventions.

Main Methods:

  • A case report detailing the diagnostic and interventional process.
  • Utilized standard electrophysiological techniques for lead placement.
  • Radiographic imaging was used to document lead position and anatomical course.

Main Results:

  • Successful placement of pacing/defibrillator leads was achieved through the left-sided SVC.
  • The leads traversed the anomalous left SVC to reach the right-sided cardiac chambers.
  • The resulting X-ray imaging displayed a distinctive and unusual appearance due to the anomalous venous anatomy.

Conclusions:

  • Cardiac device implantation is feasible despite the presence of a left-sided SVC.
  • Careful procedural planning and awareness of anomalous venous anatomy are essential.
  • This case highlights the importance of recognizing unique radiographic presentations in patients with congenital vascular anomalies.