scholarly journals Transcatheter pledget-assisted suture tricuspid annuloplasty (PASTA) to create a double-orifice valve

2018 ◽  
Vol 92 (3) ◽  
pp. E175-E184 ◽  
Author(s):  
Jaffar M. Khan ◽  
Toby Rogers ◽  
William H. Schenke ◽  
Adam B. Greenbaum ◽  
Vasilis C. Babaliaros ◽  
...  
Keyword(s):  
Tricuspid Annuloplasty ◽  
Double Orifice ◽  
Orifice Valve

Utilization of Double-Orifice Valve Plasty in Correction of Atrioventricular Septal Defect

2006 ◽  
Vol 81 (4) ◽  
pp. 1450-1454 ◽  
Author(s):  
Yong-Qiang Lai ◽  
Yi Luo ◽  
Chun Zhang ◽  
Zhao-Guang Zhang
Keyword(s):  
Septal Defect ◽  
Atrioventricular Septal Defect ◽  
Double Orifice ◽  
Orifice Valve

Abstract 20132: Quantification of Multiple Mitral Regurgitant Jets: An in vitro Assessment of Doppler Methods Pertaining to MitraClip

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Dimitrios Maragiannis ◽  
Matthew S Jackson ◽  
Stephen R Igo ◽  
William A Zoghbi ◽  
Stephen H Little
Keyword(s):  
Circular Hole ◽  
Elliptical Hole ◽  
Loop Model ◽  
Flow Loop ◽  
Flow Measurements ◽  
Vena Contracta ◽  
Velocity Interval ◽  
Double Orifice ◽  
Orifice Valve

Introduction: Mitraclip deployment creates a double orifice valve with multiple regurgitant jets making quantification of mitral regurgitation (MR) difficult. Hypothesis: Our objective was to evaluate the accuracy of double jet MR quantification by summation of individual jet 3D echo-derived vena contracta area (VCA) or 2D proximal isovelocity surface area (PISA) estimation of regurgitant volume (RV). Methods: In a pulsatile flow loop model, six valve constructs were evaluated with RV of 25 ml, 45 ml, and 65ml/beat. Regurgitant orifices tested were: a single circular hole (n=6), two symmetric circular holes (n=6), and an asymmetric configuration with a circular hole and an elliptical hole (n=6). RV was compared with true flow measurements from in vitro flow transducers. RV was calculated as: 1) PISA-Effective regurgitant orifice area x Doppler time velocity interval (TVI) or 2) VCA x Doppler TVI. Results: RV derived by PISA method correlated well with reference standard flow measures for both single orifice and double orifice valve constructs (R=0.96 vs R=0.90, p<0.0001, respectively). PISA-RV also demonstrated a good correlation to true RV when tested through symmetric or asymmetric double orifice disks (R=0.96 vs R=0.87,p<0.0001). 3D-VCA derived RV showed a superior correlation using the symmetric vs asymmetric disks (R=0.946 vs R=0.63,p<0.001). Conclusions: In a pulsatile model of double orifice MR, total RV is accurately measured by summation of PISA-derived RV or VCA -derived RV from each orifice. These methods deserve further evaluation in the clinical setting.

A Computational Study of the Hemodynamics After “Edge-to-Edge” Mitral Valve Repair

2001 ◽  
Vol 123 (6) ◽  
pp. 565-570 ◽  
Author(s):  
A. Redaelli ◽  
G. Guadagni ◽  
R. Fumero ◽  
F. Maisano ◽  
O. Alfieri
Keyword(s):  
Mitral Valve ◽  
Pressure Drop ◽  
Mitral Valve Repair ◽  
Computational Study ◽  
Free Edge ◽  
Parametric Model ◽  
Left Heart ◽  
Valve Repair ◽  
Double Orifice ◽  
Orifice Valve

Edge-to-edge mitral valve repair consists in suturing the free edge of the leaflets to re-establish coaptation in prolapsing valves. The leaflets are frequently sutured at the middle and a double orifice valve is created. In order to study the hemodynamic implications, a parametric model of the left heart has been developed. Different valve areas and shapes have been investigated. Results show that the simplified Bernoulli formula provides a good estimation of the pressure drop and that the pressure drop may be predicted on the basis of the pre-operative geometric and hemodynamics data by means of customized models.

scholarly journals The first known use of the double-orifice valve technique for Ebstein anomaly, performed 30 years ago

2019 ◽  
Vol 157 (2) ◽  
pp. e47-e49 ◽  
Author(s):  
Eva Maria Delmo Walter ◽  
Mariano Francisco del Maria Javier ◽  
Roland Hetzer
Keyword(s):  
Ebstein Anomaly ◽  
Double Orifice ◽  
Orifice Valve

scholarly journals FUSED ACCESSORY MITRAL SCALLOP CAUSING ASYMMETRIC DOUBLE ORIFICE VALVE

2020 ◽  
Vol 75 (11) ◽  
pp. 2871
Author(s):  
Mina M. Benjamin ◽  
Sandeep Banga ◽  
Yasir Abdul Ghaffar ◽  
Jay Patel ◽  
Partho Sengupta ◽  
...  
Keyword(s):  
Double Orifice ◽  
Orifice Valve

scholarly journals How to do the double orifice valve technique to treat tricuspid valve incompetence

2012 ◽  
Vol 43 (3) ◽  
pp. 641-642 ◽  
Author(s):  
Roland Hetzer ◽  
Takeshi Komoda ◽  
Eva Maria Delmo Walter
Keyword(s):  
Tricuspid Valve ◽  
Double Orifice ◽  
Orifice Valve

scholarly journals The hemodynamic effects of double-orifice valve repair for mitral regurgitation: a 3D computational model1

1999 ◽  
Vol 15 (4) ◽  
pp. 419-425 ◽  
Author(s):  
Francesco Maisano ◽  
Alberto Redaelli ◽  
Giancarlo Pennati ◽  
Roberto Fumero ◽  
Lucia Torracca ◽  
...  
Keyword(s):  
Mitral Regurgitation ◽  
Hemodynamic Effects ◽  
Valve Repair ◽  
Double Orifice ◽  
Orifice Valve

Diagnosis and Management of the Double Orifice Mitral Valve: Three Case Reports

2005 ◽  
Vol 8 (4) ◽  
pp. E236-E240 ◽  
Author(s):  
Omer Faruk Dogan ◽  
Metin Demircin ◽  
Tevfik Karagoz
Keyword(s):  
Mitral Valve ◽  
Case Reports ◽  
Diagnosis And Management ◽  
Double Orifice
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