scholarly journals Open-heart surgery for mitral valve disease, with special reference to a new prosthetic valve

1965 ◽  
Vol 50 (6) ◽  
pp. 827-838 ◽  
Author(s):  
William P. Young ◽  
Vincent L. Gott ◽  
George G. Rowe
Keyword(s):  
Mitral Valve ◽  
Special Reference ◽  
Mitral Valve Disease ◽  
Prosthetic Valve ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Valve Disease ◽  
Open Heart

scholarly journals Mitral valve disease and open heart surgery in osteogenesis imperfecta tarda.

Heart ◽  
1973 ◽  
Vol 35 (1) ◽  
pp. 103-106 ◽  
Author(s):  
S J Wood ◽  
J Thomas ◽  
M V Braimbridge
Keyword(s):  
Mitral Valve ◽  
Osteogenesis Imperfecta ◽  
Mitral Valve Disease ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Valve Disease ◽  
Open Heart

Early risks of open heart surgery for mitral valve disease

1976 ◽  
Vol 37 (2) ◽  
pp. 201-209 ◽  
Author(s):  
Azai Appelbaum ◽  
Nicholas T. Kouchoukos ◽  
Eugene H. Blackstone ◽  
John W. Kirklin
Keyword(s):  
Mitral Valve ◽  
Mitral Valve Disease ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Valve Disease ◽  
Open Heart

scholarly journals Clinical Results of Minimally Invasive Open-Heart Surgery in Patients with Mitral Valve Disease: Comparison of Parasternal and Low-Sternal Approach

2006 ◽  
Vol 47 (2) ◽  
pp. 230 ◽  
Author(s):  
Sak Lee ◽  
Byung-Chul Chang ◽  
Sang-Hyun Lim ◽  
You-Sun Hong ◽  
Kyung-Jong Yoo ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Minimally Invasive ◽  
Mitral Valve Disease ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Clinical Results ◽  
Valve Disease ◽  
Open Heart

scholarly journals Design and Fabrication of a MirtaClip Locator Prototype for Percutaneous Transcatheter Mitral Valve Repair System

2017 ◽  
Author(s):  
Bardia Konh ◽  
Russell K. Woo ◽  
Scott Miller
Keyword(s):  
Mitral Valve ◽  
Left Ventricle ◽  
Shape Memory ◽  
Mitral Valve Disease ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Open Heart ◽  
Valve Repair ◽  
Blood Flows ◽  
Transcatheter Mitral Valve Repair

Mitral Regurgitation (MR) is a malfunction of the mitral valve where the blood flows backward because of improper closure of the valve. The blood flows back through the mitral valve to the left atrium during the contraction of the left ventricle. This condition usually causes shortness of breath, fatigue, lightheadedness, and a rapid heartbeat. It is estimated that 2% of the global population have significant mitral valve disease. In US, more than 200,000 patients are diagnosed with this condition each year [1]. Current treatments include anticoagulation medication, and surgeries to replace or repair the dysfunctional mitral valve. Open heart surgery has been the conventional approach to repair or replace the mitral valve. However, for a large percentage of patients (almost 30%), open heart surgery carries increased risk of mortality and morbidity due to their advanced age and dysfunction of the left ventricle [2]. Recently, less invasive, transcatheter approaches to mitral valve disease have been developed to decrease the surgical risk for these patients. [3]. One of the approaches that has recently shown promising outcomes is the placement of a MitraClip system (Abbott Vascular, Inc., Santa Clara, California) to stop or decrease the undesired leakage. MitraClip is a metal clip coated with fabric that is implanted on the mitral valve leaflets to allow the valve to close more completely. After clip placement, blood flows in an assisted fashion as the mitral valve opens and closes on the either sides of the clip. The whole procedure for placement of the MitraClip in Transcatheter Mitral Valve Repair (TMVR) takes 2 to 3 hours under general anesthesia. A transesophageal echocardiogram is used to observe the blood flow and to trace the placement of the clip. A catheter is guided inside the femoral artery after percutaneous access is established. Then a guide wire is inserted to reach the mitral valve. At this time the MitraClip is threaded into the target position between the leaflets, and then, the guide is removed. Precise placement and orientation must be achieved at this point to best secure the clip with the minimum leakage possible. Since the implantation is being done inside a beating heart, this precise placement is the most challenging part of the surgery. Currently trial and error along with precise measurements are being utilized to find the best position. This work introduces an innovative MitraClip locator device based on the most advanced materials and actuators to assist in the positioning of the MitraClip during implantation; this would potentially facilitate the most challenging and improtant step of the procedure. Currently, doctors are spending most of their surgical time (roughly 90 min) finding the correct orientation for the clip. The proposed self-actuated MitraClip locator device uses active Shape Memory Alloys (SMAs), Nitinol wires, in order to expedite surgical procedures with a higher precision. SMA wires have been used in medical devices safely and effectively [4,5]. Fig. 1 shows the schematic picture of our novel design that includes evenly distributed SMA wires inside a shaft to enable orientations in multiple directions. This design is proposed as a scaled model for preliminary testing. After thorough testing and evaluation on this model a real size prototype will be made for the real application. This work presents a detailed design of our innovative device. This device has been fabricated and tested to show the proof of concept. The main purpose of this work is to show the feasibility of achieving movements in multiple directions using three shape memory alloy wires. As a long term plan, the authors aim to have this mechanism (while its accuracy and safety is assured) attached behind the MitraClip to facilitate controlled, accurate positioning.

High-dose streptokinase therapy for prosthetic valve thrombosis within 2 weeks of open heart surgery

1998 ◽  
Vol 66 (2) ◽  
pp. 143-145
Author(s):  
B Bhargava ◽  
A.K Chopra ◽  
R Agarwal ◽  
R Narang ◽  
V Chopra ◽  
...  
Keyword(s):  
Prosthetic Valve ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
High Dose ◽  
Open Heart ◽  
Prosthetic Valve Thrombosis ◽  
Valve Thrombosis ◽  
Streptokinase Therapy

Short and Long-term Results of Open Heart Surgery in Aortic Valve Disease

1998 ◽  
Vol 28 (9) ◽  
pp. 1509 ◽  
Author(s):  
Hyun-Sook Kim ◽  
Jae-Kwan Song ◽  
Jae-Hwan Lee ◽  
Young-Hak Kim ◽  
Min-Kyu Kim ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Disease ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Valve Disease ◽  
Long Term Results ◽  
Open Heart ◽  
Short And Long Term

scholarly journals Case report of simultaneous transcatheter mitral valve-in-valve implantation and percutaneous closure of two paravalvular leaks

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Masahiko Asami ◽  
Thomas Pilgrim ◽  
Stephan Windecker ◽  
Fabien Praz
Keyword(s):  
Mitral Valve ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Transoesophageal Echocardiography ◽  
Paravalvular Leak ◽  
Open Heart ◽  
Surgical Risk ◽  
Significant Difference ◽  
Valve In Valve ◽  
Valve Implantation

Abstract Background Concomitant structural degeneration of surgical mitral bioprostheses and paravalvular leak (PVL) is rare but potentially fatal. Data pertaining to simultaneous transcatheter mitral valve implantation (TMVI) and percutaneous PVL closure are limited, and the optimal treatment strategy remains undetermined. We report a case of simultaneous TMVI and double percutaneous PVL closure in a patient with a degenerated bioprosthetic mitral valve and associated medial and lateral PVLs. Case summary A 75-year-old woman who underwent combined aortic (Edwards Perimount Magna 19 mm) and mitral (Edwards Perimount Magna 25 mm) surgical valve replacement 6 years ago was referred for treatment of new-onset orthopnoea and severely reduced exercise capacity. Transoesophageal echocardiography revealed severe mitral stenosis and concomitant moderate to severe mitral regurgitation, originating from two PVLs located medial and lateral from the surgical bioprosthesis. Due to high surgical risk, we performed successful transseptal mitral valve-in-valve (ViV) implantation combined with the closure of two PVLs during the same procedure. Discussion Although surgery should be considered as a first-line treatment in this setting, most patients have extremely high or prohibitive surgical risk inherent to repeat open heart surgery. Mitral ViV implantation appears a reasonable treatment option for patients with failed mitral bioprostheses. Furthermore, a recent study of percutaneous PVL closure showed no significant difference in long-term all-cause mortality compared with redo open-heart surgery. Simultaneous TMVI and percutaneous PVL closure appears feasible in selected high-risk patients.

Open heart surgery with mitral valve replacement - ordeal of an undiagnosed haemophilia patient.

2003 ◽  
Vol 25 (2) ◽  
pp. 131-133 ◽  
Author(s):  
K. Ghosh ◽  
M. Madkaikar ◽  
F. Jijina ◽  
S. Gandhi ◽  
S. Shetty ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Open Heart

scholarly journals Arterial Complications Incident to Cannulation in Open-Heart Surgery* With Special Reference to the Femoral Artery

1960 ◽  
Vol 152 (6) ◽  
pp. 969-974 ◽  
Author(s):  
Thomas W. Jones ◽  
Roy R. Vetto ◽  
Loren C. Winterscheid ◽  
David H. Dillard ◽  
K. Alvin Merendino
Keyword(s):  
Special Reference ◽  
Femoral Artery ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Open Heart ◽  
Arterial Complications
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