2022 AF Symposium
Spotlight Sessions: Features products or devices usually still in development or not yet FDA approved. They give us a glimpse into what the future of A-Fib treatment may look like.
Spotlight Session: Clinical Experience with the CLASS LAAO System

Dr. Jamie Kim
Dr. Jamie Kim of the Catholic Medical Center in Manchester, NH, presented one of the most innovative and promising new developments for patients to close off their Left Atrial Appendage (LAA).

The CLASS LAAO
Instead of relatively hard, rigid structures which don’t always conform perfectly to the LAA opening and thus may leak, the CLASS LAAO system from Conformal Medical, Inc. uses a different type of conformable foam-based fabric to seal off the LAA.
Complete Seal
The CLASS is designed to conform to a broader range of LAA sizes and shapes.
In the animation we saw, the foam-like material expanded from the insertion catheter to fill the interior of the irregularly shaped LAA. Dr. Kim says the seal made by the CLASS is complete.
Easier To Use, Wider Applicability

The CLASS LAAO system catheter
The CLASS device is soft which allows for both easier positioning when inserted and greater conformability. It also didn’t seem to have any metal protrusions as one sees in the Watchman.
It comes in only two sizes. It also uses rows of anchors to lock the device in place in the LAA. It’s designed with a flexible Nitinol under skeleton. It can be re-captured, if necessary.
To compare the Watchman with the CLASS, see my report: The Watchman Device. There’s also a brief animation of how the Watchman is installed: The Watchman FLXTM Device: Closure of the Left Atrial Appendage.

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