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Published on: May 26, 2023
Antegrade Cardioplegia Decannulation Using the COR-KNOT System in Minimally Invasive Mitral Valve Surgery
Sabet W Hashim1, Philip Y K Pang
1From the *Section of Cardiac Surgery, Yale University School of Medicine, New Haven, CT USA; and †Department of Cardiothoracic Surgery, National Heart Centre, Singapore, Singapore.
Insights
Minimally invasive mitral valve repair using a right mini-thoracotomy is effective. A new technique using the COR-KNOT system simplifies cannula removal, reducing aortic injury and bleeding risks during this cardiac surgery.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Cardiac Surgery
Background:
- Right mini-thoracotomy offers a minimally invasive approach for mitral valve repair.
- This approach presents unique surgical challenges, including managing the antegrade cardioplegia cannula site.
Purpose of the Study:
- To introduce and evaluate a novel technique for antegrade cardioplegia cannula removal.
- To address the challenges of hemostasis at the cannula site in minimally invasive mitral valve repair.
Main Methods:
- A novel technique utilizing the COR-KNOT system for cannula removal was developed.
- This method aims to eliminate the need for traditional knot tying with a knot pusher.
Main Results:
- The COR-KNOT system facilitates secure cannula removal.
- This technique potentially reduces the risk of aortic injury and intraoperative bleeding compared to conventional methods.
Conclusions:
- The COR-KNOT system offers a safe and effective solution for managing antegrade cardioplegia cannula removal during right mini-thoracotomy mitral valve repair.
- This technique enhances the feasibility and safety of minimally invasive cardiac procedures.
Abstract:
A right mini-thoracotomy approach may be used for mitral valve repair without compromising clinical outcomes. Compared with conventional sternotomy, there is an increased distance to the cardiac structures from the mini-thoracotomy incision, which makes certain technical acts more demanding. One particular challenge is hemostasis at the antegrade cardioplegia cannula site. We propose a novel technique to remove an antegrade cardioplegia cannula using the COR-KNOT system. This technique negates the need for tying with a knot pusher and reduces the risk of aortic injury and troublesome bleeding.

