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Visualizing the Beating Heart in Drosophila
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New Cardioscope-Based Platform for Minimally Invasive and Percutaneous Beating Heart Interventions.

Jamshid H Karimov1, Tomislav Mihaljevic2, Shengqiang Gao3

  • 1Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.

Seminars in Thoracic and Cardiovascular Surgery
|October 13, 2018
PubMed
Summary
This summary is machine-generated.

This study demonstrates the feasibility of a new cardioscope for minimally invasive heart procedures. The advanced platform allows direct visualization of intracardiac structures through transapical and percutaneous approaches.

Keywords:
Beating heartCardioscopeIntracardiac imagingPercutaneous procedureTransapical access

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Area of Science:

  • Cardiovascular Surgery
  • Medical Imaging
  • Minimally Invasive Techniques

Background:

  • Rising global incidence of heart disease necessitates advanced treatment modalities.
  • Minimally invasive and transcatheter technologies are crucial for structural heart disease management.
  • Direct intracardiac visualization via cardioscopy offers therapeutic advantages in closed-chest procedures.

Purpose of the Study:

  • To report the feasibility of an advanced cardioscopic platform for structural heart interventions.
  • To evaluate both transapical and fully percutaneous access methods for cardioscope insertion.
  • To establish cardioscopy as a milestone in minimally invasive cardiac surgery.

Main Methods:

  • Cardioscope prototypes with miniature, water-sealed cameras were tested in 7 bovine models.
  • Insertion was performed via transapical (n=4) or percutaneous (n=5) approaches.
  • Percutaneous cardiopulmonary bypass utilized balloon occlusion of the pulmonary artery and crystalloid perfusion.

Main Results:

  • Successful insertion of optimized cardioscope devices via both transapical and percutaneous routes.
  • Clear, deformation-free visualization of intracardiac structures, including the left ventricle and valves.
  • Feasible catheter tip manipulation (>180° bending) and navigation for comprehensive intracardiac viewing.

Conclusions:

  • The study confirms the technical feasibility of direct cardioscopic visualization using both transapical and percutaneous access.
  • This advanced cardioscopic instrumentarium shows promise for future interventions and cardiac surgery.
  • Direct visualization of the beating heart during procedures represents a significant advancement.