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Related Experiment Video

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Transplantation of a 3D Bioprinted Patch in a Murine Model of Myocardial Infarction
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Postinfarction ventricular septal defect: right ventricular approach-the extended "sandwich" patch.

Tohru Asai1, Soh Hosoba, Tomoaki Suzuki

  • 1Division of Cardiovascular Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan. toruasai@belle.shigamed.ac.jp

Seminars in Thoracic and Cardiovascular Surgery
|May 31, 2012
PubMed
Summary

This study presents a new ventricular septal defect (VSD) repair technique using a right ventricular incision. This method ensures a leak-free closure with enhanced patch coverage, improving patient outcomes.

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Area of Science:

  • Cardiovascular Surgery
  • Congenital Heart Disease Repair
  • Surgical Innovation

Background:

  • Ventricular septal defects (VSDs) are common congenital heart abnormalities requiring surgical closure.
  • Existing VSD repair techniques may have limitations in patch coverage and risk of recurrence.
  • Minimizing invasiveness and ensuring complete, durable closure are key goals in VSD surgery.

Purpose of the Study:

  • To introduce and evaluate a novel VSD closure technique.
  • To achieve enhanced, well-anchored patch coverage of the VSD margin.
  • To create a completely leak-free repair with reduced perioperative risks.

Main Methods:

  • A novel VSD closure technique involving a right ventricular incision and trans-VSD approach.
  • Utilized large interrupted horizontal mattress sutures for a "sandwich" double patch closure.
  • Avoided left ventricle wall incision, facilitating easier placement of the second patch.
  • Employed large transseptal/transmural mattress sutures for secure patch fixation.

Main Results:

  • The technique provides extended and better-anchored coverage of the VSD margin.
  • Achieved a completely leak-free "sandwich" double patch repair.
  • The patch size used is considerably smaller compared to infarction exclusion techniques.
  • Demonstrated minimized perioperative risk of shunt recurrence.
  • Reported good, safe, and completely leak-free outcomes in initial cases.

Conclusions:

  • The novel VSD repair method via right ventricular incision and trans-VSD approach is safe and simple.
  • This technique offers a promising alternative for VSD closure, ensuring durability and leak-free results.
  • The approach minimizes invasiveness and reduces the risk of residual shunting.