Antegrade Cardioplegia Decannulation Made Simple With the Cor-Knot System: Technique and Tips After 20 Consecutive...

Area of Science:

• Cardiovascular Surgery
• Minimally Invasive Techniques
• Medical Device Innovation

Background:

• Closing the cardioplegia cannulation site is a challenge in minimally invasive cardiac surgery.
• The Cor-Knot system is efficient for valve sutures but carries a risk of erosion to adjacent structures.
• A need exists for a safe method to achieve hemostasis at the aortic root cannulation site.

Purpose of the Study:

• To evaluate the safety and efficacy of a modified Cor-Knot system for closing the cardioplegia cannulation site.
• To prevent erosion of the aorta or right atrium during minimally invasive cardiac surgery.
• To assess the hemostatic capability of the modified device.

Main Methods:

• A single-arm prospective study involving 20 consecutive patients undergoing video-assisted minimally invasive cardiac surgery.
• A modified Cor-Knot system was used to secure a Teflon-felt band over the cardioplegia site.
• Suture placement and protection of the right atrial appendage were performed to prevent sharp end exposure.

Main Results:

• Hemostasis was successfully achieved in all 20 patients without additional sutures.
• No bleeding complications were observed.
• No instances of aortic or right atrial erosion were reported at the 6-month follow-up.

Conclusions:

• The modified Cor-Knot system provides a safe and effective method for off-label closure of the cardioplegia cannulation site in minimally invasive cardiac surgery.
• This technique demonstrates potential for preventing complications associated with cannulation site closure.
• Further investigation into this modified device is warranted based on initial positive outcomes.