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Correction: Komatsu et al. Three-Dimensional Visualization and Detection of the Pulmonary Venous-Left Atrium Connection Using Artificial Intelligence in Fetal Cardiac Ultrasound Screening. <i>Bioengineering</i> 2026, <i>13</i>, 100.

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Modified Clover Technique Using Automated Suture Placement and Securing Technology in a Passive Beating Heart Model.

Severin Laengle1, Aldo Suria1, Thomas Poschner1

  • 1Department for Cardiac Surgery, Medical University of Vienna, 1090 Vienna, Austria.

Bioengineering (Basel, Switzerland)
|July 27, 2024
PubMed
Summary
This summary is machine-generated.

A modified clover repair technique effectively reduced severe tricuspid regurgitation (TR) in a porcine heart model. This surgical approach shows promise for treating TR, particularly in minimally invasive procedures.

Keywords:
clover techniqueedge-to-edge repairtricuspid regurgitation

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Area of Science:

  • Cardiovascular Surgery
  • Medical Devices
  • Surgical Innovation

Background:

  • Tricuspid regurgitation (TR) is common and severe cases lead to poor patient outcomes.
  • Clover repair is a surgical option for both primary and secondary TR.
  • Novel techniques are needed to improve TR treatment efficacy.

Purpose of the Study:

  • To evaluate a modified clover repair technique using automated suturing devices.
  • To compare this modified technique against standard ring annuloplasty for TR treatment.
  • To assess the efficacy of these repairs in an ex vivo beating porcine heart model.

Main Methods:

  • A passive beating porcine heart model was utilized.
  • Secondary TR was induced in 10 porcine hearts.
  • Regurgitant volume was measured before and after isolated ring annuloplasty, modified clover repair, and a combined procedure.

Main Results:

  • Baseline regurgitant volume averaged 43.3 ± 10.8 mL.
  • All repair methods significantly reduced regurgitation (p < 0.0001).
  • The modified clover technique (12 ± 3.9 mL) and combined procedure (7.6 ± 3.4 mL) showed superior reduction compared to ring annuloplasty (22.2 ± 5.9 mL).

Conclusions:

  • The modified clover repair technique effectively reduces tricuspid regurgitation in an ex vivo model.
  • This technique may enhance tricuspid valve repair outcomes.
  • It holds potential for facilitating totally endoscopic tricuspid valve surgery.