scholarly journals Computer-based comparison of different methods for selecting mitral annuloplasty ring size

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Sameer Al-Maisary ◽  
Sandy Engelhardt ◽  
Bastian Graser ◽  
Ivo Wolf ◽  
Matthias Karck ◽  
...  
2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
K Yoshitani ◽  
T Fujii ◽  
S Ito ◽  
A Shimokawa ◽  
Y Ohnishi

Abstract Funding Acknowledgements Department funding Background Mitral valve repair is preferred to valve replacement in cases of degenerative mitral regurgitation (MR) due to the lower risk of valve-related complications and operative mortality. In mitral valve repair, annuloplasty is associated with better clinical outcomes. Sizing of the annuloplasty ring with a ring sizer, which should be performed in the end-systolic phase, is performed in diastole during hyperkalaemia cardioplegic arrest. Three-dimensional transoesophageal echocardiography (3D-TEE) allows measurement of the mitral valve while the heart is beating, which is beneficial since the mitral valve size changes throughout the cardiac cycle. Purpose To investigate whether 3D-TEE measurements of the mitral valve are effective for preventing recurrent mitral regurgitation (MR) in patients who undergo mitral valve repair for degenerative MR. Methods This study retrospectively reviewed 139 patients who underwent mitral annuloplasty for degenerative MR. After 47 patients were excluded, 92 patients were analysed. The inter-commissural (IC) distance and anterior leaflet height of the A2 segment of the mitral valve were measured by 3D-TEE at the end-systolic phase. The annuloplasty ring size and type were selected by surgeons using specific ring sizers. We investigated the association of the IC distance with the size of implanted annulus ring and differences between the size of implanted annulus ring and the IC distance. We also compared the IC distance, the A2 height, and the ratio of A2 height to IC distance between patients with and without recurrent mild-to-moderate MR for 36 months. Results There was a significant correlation between the size of the mitral annuloplasty ring and the IC distance (R²=0.7023, p < 0.001). The variety between implanted annulus ring size and IC distance measured by 3D-TEE was shown in Figure1. Eight cases had mild or greater recurrent MR. There was a significant difference in the ratio of A2 height to IC distance between patients with and without recurrent MR (p = 0.006). The A2 height was greater in patients with recurrent MR, but this difference was not significant (p = 0.059). Conclusions There was a significant correlation between the size of the mitral annuloplasty ring and the IC distance. Our results demonstrated a higher ratio of A2 height to IC distance in patients with recurrent MR. Abstract P1409 Figure1


Author(s):  
Arian Arjomandi Rad ◽  
Vinci Naruka ◽  
Robert Vardanyan ◽  
Alessandro Viviano ◽  
Mohammad Yousuf Salmasi ◽  
...  

Abstract OBJECTIVES Mitral and tricuspid ring annuloplasty dehiscence with consequent recurrent valve regurgitation is a rare but challenging procedural failure. The incidence and predisposing risk factors for annuloplasty ring dehiscence include technical and pathological ones. METHODS A systematic database search with pooled analysis was conducted of original articles that only included dehiscence rate of mitral and tricuspid ring in EMBASE, MEDLINE, Cochrane database and Google Scholar, from inception to November 2020. The outcomes included were dehiscence rate in mitral and tricuspid, type of ring implanted, dehiscence rate by pathology and by ring size and shape. RESULTS Our search yielded 821 relevant studies. Thirty-three studies met the inclusion criteria with a total of 10 340 patients (6543 mitral, 1414 tricuspid) of which 87 (mitral) and 30 (tricuspid) had dehiscence. Overall, dehiscence rate was 1.43%, diagnosed at a median of 4.5 ± 1.0 months postoperatively. A significant difference in mitral dehiscence rate was found by ring type (semi-rigid 1.86%, rigid 2.32%; flexible 0.43%; P < 0.001). There was no significant difference in rate of dehiscence by ring size (P = 0.067) and shape in mitral (P = 0.281) but there was higher dehiscence rate in ischaemic compared to non-ischaemic mitral regurgitation (3.91% vs 1.63%; P = 0.022). Among tricuspid studies, 9 of 10 studies did not report any dehiscence. CONCLUSIONS Although rigid, semi-rigid and flexible annuloplasty rings provide acceptable valve repair outcomes, mitral annuloplasty ring dehiscence is clinically more common among rigid rings. Understanding the multifactorial nature of ring dehiscence will help in identifying the patients at high risk and improve their clinical outcomes.


2009 ◽  
Vol 88 (5) ◽  
pp. 1492-1498 ◽  
Author(s):  
Pier Giorgio Bruno ◽  
Cristian Leva ◽  
Luisa Santambrogio ◽  
Ilaria Lazzarini ◽  
Giorgio Musazzi ◽  
...  

2018 ◽  
Vol 11 (3) ◽  
pp. e17-e20 ◽  
Author(s):  
Konstantinos Toutouzas ◽  
Vasilis Lozos ◽  
George Oikonomou ◽  
Constantina Aggeli ◽  
George Latsios ◽  
...  

Author(s):  
Sanjay Cherian ◽  
Mustafa Cikirikcioglu ◽  
Burak Can Depboylu ◽  
Jalal Jolou ◽  
Afksendiyos Kalangos

2009 ◽  
Vol 54 (17) ◽  
pp. 1629 ◽  
Author(s):  
Wendy Tsang ◽  
Gilbert Wu ◽  
Dmitry Rozenberg ◽  
Jeffrey Mosko ◽  
Howard Leong-Poi

2006 ◽  
Vol 29 (2) ◽  
pp. 251-252 ◽  
Author(s):  
Eric Bezon ◽  
Ahmed Ismail Abdel Aziz Khalifa ◽  
Jean Noël Choplain ◽  
Jean Aubert Barra

Author(s):  
Henrik Jensen ◽  
Jarmo Simpanen ◽  
Morten Smerup ◽  
Marianne Bjerre ◽  
Morten Bramsen ◽  
...  

Objective To further develop and improve minimally invasive surgical procedures, dedicated appropriate surgical devices are mandatory. In this study, the safety and feasibility of implanting the novel Medtentia double helix mitral annuloplasty ring, which uses the key-ring principle to potentially allow faster and sutureless implantation, was assessed using both minimally invasive and conventional surgical techniques. Because of ethical concerns, a human compatible porcine experimental model of mitral valve surgery was used. Methods Twelve 50-kg pigs were allocated to implantation of the Medtentia double helix annuloplasty ring using conventional midline sternotomy including cardioplegic arrest or a minimally invasive approach using peripheral cannulation and left ventricular fibrillation. Ten weeks after surgery, echocardiography was performed to assess mitral valve function. Animals were then killed, and gross mitral valve anatomy was examined ex vivo. Results All animals survived 10 weeks without developing mitral regurgitation, structural leaflet damage, ring dehiscence, or endocarditis. In the minimally invasive compared with the midline sternotomy group (mean ± SD), significantly reduced recovery time (80 ± 16vs. 327 ± 23 minutes, P < 0.01) and a tendency toward increased operating time (199 ± 33 vs. 168 ± 15 minutes, P > 0.05) and cardiopulmonary bypass time (98 ± 12 vs. 91 ± 11 minutes, P > 0.05) were observed. Conclusions By using a both minimally invasive and conventional midline sternotomy implantation techniques, the Medtentia double helix annuloplasty ring showed no mitral valve dysfunction or tissue damage 10 weeks postoperatively.


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