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Related Concept Videos

Shunt Admittances01:26

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Shunt admittances play a crucial role in the analysis of transmission lines, particularly for three-phase systems with neutral conductors. When a uniformly charged conductor is positioned above the Earth, it induces an equal but opposite charge on its surface. This interaction creates electric field lines between the conductor and the Earth.
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Related Experiment Video

Updated: Jan 30, 2026

Technique of Porcine Liver Procurement and Orthotopic Transplantation using an Active Porto-Caval Shunt
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An alternative technique for downsizing a modified Blalock-Taussig shunt.

Dimitrios Bobos1, Meletios Kanakis1, Evangelia Grisbolaki1

  • 1Department of Paediatric and Congenital Heart Surgery Onassis Cardiac Surgery Centre Athens Greece.

Clinical Case Reports
|January 19, 2019
PubMed
Summary

A novel surgical technique allows for downsizing modified Blalock-Taussig shunts during reoperation in critically ill infants. This approach minimizes surgical stress in unstable patients needing shunt adjustment.

Keywords:
B‐T shuntconduitpulmonary overcirculationtransposition of great arteries

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Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiac Surgery
  • Surgical Innovation

Background:

  • Modified Blalock-Taussig shunts are crucial for palliation in complex congenital heart disease.
  • Reoperation for shunt dysfunction in hemodynamically unstable infants presents significant challenges.
  • Minimizing surgical manipulation is critical in critically ill pediatric patients.

Purpose of the Study:

  • To describe an alternative surgical approach for downsizing an existing modified Blalock-Taussig shunt.
  • To present this technique as a reoperative strategy in hemodynamically unstable infants.
  • To highlight the benefits of minimizing surgical manipulations in critically ill infants.

Main Methods:

  • A modified surgical technique for shunt downsizing is detailed.
  • The approach is applied as a reoperation in a hemodynamically unstable infant.
  • Emphasis is placed on reducing surgical interventions.

Main Results:

  • The described alternative surgical approach was successfully employed for shunt downsizing.
  • This method was chosen specifically to limit surgical manipulations.
  • The intervention was performed in a critically ill infant requiring reoperation.

Conclusions:

  • An alternative surgical approach for modified Blalock-Taussig shunt downsizing in reoperations is feasible.
  • This technique offers a strategy to minimize surgical manipulations in unstable, critically ill infants.
  • Further evaluation may be warranted for this specialized surgical approach.