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Endoscopic computer-enhanced beating heart coronary artery bypass grafting
V Falk1, J I Fann, J Grünenfelder
1Department of Cardiothoracic Surgery, Stanford University Medical Center, California 94305, USA. vfalk@stanford.edu
The Annals of Thoracic Surgery
|January 13, 2001
Summary
This study demonstrates computer-enhanced endoscopic coronary artery bypass grafting on beating hearts in dogs. The technique shows promise for minimally invasive cardiac surgery, enabling successful anastomosis on the beating heart.
Area of Science:
- Minimally Invasive Cardiac Surgery
- Robotic Surgery
- Cardiovascular Surgery
Background:
- Telemanipulation systems have advanced coronary revascularization on arrested hearts.
- Developing techniques for beating heart surgery is crucial for improving patient outcomes.
Purpose of the Study:
- To develop a computer-enhanced endoscopic coronary artery bypass grafting technique for the beating heart.
- To evaluate the feasibility and safety of this novel approach in a canine model.
Main Methods:
- Utilized the daVinci telemanipulation system for harvesting the left internal thoracic artery.
- Employed an articulating stabilizer for cardiac stabilization through a fourth port.
- Performed graft to coronary artery anastomosis on the left anterior descending artery.
Main Results:
- Successful endoscopic beating heart bypass grafting, stabilization, and anastomosis were achieved in 7 out of 10 dogs.
- Grafts were patent, with minor strictures in two cases.
- Procedure completion was affected by complications in three dogs, including arrhythmia and laceration.
Conclusions:
- Endoscopic beating heart coronary artery bypass grafting is feasible in a canine model.
- Computer-enhanced instrumentation and articulating stabilization are key components of this technique.
- Further research is warranted to refine the technique for clinical application.