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Comparison of the sustainability of mitral annular dynamics between two semi-rigid annuloplasty devices
- Source :
- European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery.
- Publication Year :
- 2018
-
Abstract
- OBJECTIVES The choice of annuloplasty device is fundamental at the time of mitral valve repair, the goal being to optimally restore the physiological 3-dimensional (3D) structure and dynamics of the mitral annulus (MA). This study evaluated MA dynamics after annuloplasty with 2 different semi-rigid devices. METHODS Thirty-three patients eligible for mitral valve repair were selected for annuloplasty with the Physio II ring (Edwards Lifesciences, Irving, CA, USA) (n = 17) or the Memo 3D ring (LivaNova, Saluggia, Italy) (n = 16). MA dynamics were assessed with transoesophageal 3D echocardiography intraoperatively and 1 year after repair. RESULTS The postoperative changes in the anteroposterior diameter {3.7% [standard deviation (SD) 2.7] vs 1.9% [SD 1.3]; P = 0.013} and in the annular height [27.7% (SD 8.7) vs 18.0% (SD 13.9); P = 0.003] were significantly larger with the Memo 3D ring during the cardiac cycle. The restoration of the saddle shape at baseline was superior with the Physio II ring, defined by a larger systolic annular height-to-commissural width ratio [15.1% (SD 2.3) vs 7.1% (SD 2.4); P CONCLUSIONS The MA dynamics after annuloplasty with the Physio II and Memo 3D rings demonstrated a better systolic 3D restoration of the saddle shape with the Physio II ring, whereas the saddle-shaped geometry improved significantly with the Memo 3D ring, as a dynamic phenomenon. The Memo 3D ring also showed increased anteroposterior annular mobility and folding dynamics throughout the cardiac cycle. Moreover, the observed differences in MA dynamics between both devices appeared to be sustainable 1 year after ring implantation.
- Subjects :
- Pulmonary and Respiratory Medicine
Mitral valve repair
3 dimensional echocardiography
Cardiac cycle
business.industry
medicine.medical_treatment
General Medicine
Mitral valve function
Width ratio
medicine
Surgery
Mitral annulus
Cardiology and Cardiovascular Medicine
Nuclear medicine
business
Saddle shape
3d echocardiography
Subjects
Details
- ISSN :
- 1873734X
- Database :
- OpenAIRE
- Journal :
- European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
- Accession number :
- edsair.doi.dedup.....bf7a8f6fc13ddb29b1ab0aa5ab52af5a