SATS 2009 Final Program - Scandinavian Association for Thoracic ...

P01:38
MITRAL ANNULOPLASTY WITH A NEW MEDTENTIA RING
Werkkala Kalervo 1 , Simpanen Jarmo 1 , Wirup Per 2
1) Helsinki University, Finland 2) Arhus, Denmark
Medtentia Annuloplasty Ring (MAR) is a new implantable annulus support ring designed to provide support for the
mitral annulus. The MAR ring consists of two helical rings and is rotated in place starting at the posterior medial
comissur and rotated 360 degrees so that the lower ring of the MAR slides on the ventricular aspect of the mitral
annulus, underneath all chordae.The MAR ring was tested in 12 adult patients undergoing mitral valve annuloplasty.
In all cases a posterior leaflet prolaps was found and a reduction annuloplasty was performed. thereafter the MAR
was implanted and the position was controlled with a dental mirror. Before permanent fixation of the conventional
ring the MAR was removed.
The mean time to implant the MAR was 1.5 min ( 0.5-5 min ). At this time no attempt to fix the MAR ring was done
and it was removed. The duration of the removal time was 0.6 min (0.1-2 min).
The MAR ring was easy and quick to implant and explant. During the procedure no damage to the mitral valve and
chordae was noted. In all cases the ring cached all chordae. After implantation the MAR ring needs a quick fixation
method to be easy and rapid method for mitral annuloplasty in conventional, minimal and robotic surgery.
P01:39
AORTIC VALVE REPLACEMENT IN THE ELDERLY
Vainikka Tiina 1 , Soisalon-Soininen Sari 1 , Kaartinen Maija 1 , Suojaranta-Ylinen Raili 1 ,
Maasilta Paula 1 , Vento Antti 1 , Salminen Ulla-Stina 1
1) Helsinki University Hospital, Finland
Background
Aortic stenosis rate increases with age. Thus, number of patients undergoing aor-tic valve replacement (AVR) is
expected to grow, when the elderly population is increasing.
Methods
Patients (n=145) undergoing AVR with bioprostheses 1992 - 1997 were followed. At the time of operation, 30 were
> 80 years, 94 were < 80 to > 70 years, and 21 < 70 years old. A follow-up control including echocardiographic
examination took place at least 5 years postoperatively. Follow-up continued until July 31, 2006.
Results
In the oldest group, 30-day mortality was 3.3% and 6.4% in the middle group. In the middle group, 5 valve-related
reoperations were performed. At time of follow-up, 84 (58 %) patients were alive and 60 (71%) attended. LVEF
was improved being > 60% in all groups and the aortic valve gradient was lower than preoperatively in all and most
decreased in the oldest group (p