Mitral Valve Repair (NeoCHORD) |
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NeoCHORD Mitral Valve Repair Kit
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Historically, chordae replacement has been used with high reproducibility and excellent results for repairing leaflet prolaspe but has required open-heart surgery with bypass to stop the heart while the repair is performed. The NeoChord DS1000 is a disposable device that is intended to replace damaged chordae by delivering artifical chordae tendinae or "neochords" in a beating heart using minimally invasive techniques. In patients with severe degenerative mitral valve regurgitation, early surgery is recommended for patients with no symptoms because the probability of surgical success is high. Waiting until symptoms develop is associated with harmful changes in the heart’s structure and function that may increase the potential for surgical complications. However, patients with no symptoms might be reluctant to undergo open-heart surgery with bypass. The NeoChord DS1000 may offer patients a less invasive procedure choice.
The NeoChord procedure is performed on the beating heart through a 2 to 3 inch incision between the ribs, unlike some repair procedures where the sternum is cut and the rib cage is spread open. Using echocardiographic guidance, the NeoChord DS1000 is introduced through the lowest part of the heart (apex), into the left ventricle, and between the mitral valve leaflets. The prolapsed leaflet is then grasped using the expandable jaws of the device. When the monitor confirms that the leaflet has been adequately captured, the ePTFE suture is deployed and attached to the leaflet. The suture is then pulled through the apex of the heart as the DS1000 is removed. The correct length of the suture is determined by using real time echocardiographic guidance and observing the improvement in mitral valve regurgitation in the beating heart. The suture is then secured to the apex of the heart. The goal of mitral valve repair is to restore natural leaflet motion and to preserve a large valve opening with leaflets that fit well together. The NeoChord DS1000 is designed with these goals in mind and uses minimally invasive surgical techniques, potentially avoiding the complications associated with open- heart surgery performed on a stopped heart. The surgeon gets immediate confirmation that the regurgitation is reduced, unlike procedures where the repair is done on a stopped heart and the heart must be started again to determine if the repair was successful. The benefits of minimally invasive mitral valve surgery may include a shorter hospital stay, faster recovery and less scarring. |