scholarly journals Technical Details of Redo Aortic Valve Replacement using St. Jude Medical Mechanical Prosthesis in a Patient with Thrombosed Aortic Mechanical Prosthesis: A Video Presentation

2021 ◽  
Vol 4 (18) ◽  
pp. 01-03
Author(s):  
Ujjwal K. Chowdhury ◽  
Niwin George ◽  
Lakshmi Kumari Sankhyan ◽  
Shikha Goja ◽  
Sumanth Raghuprakash ◽  
...  

Current consensus guidelines of the AHA and ESC, uniformly recommend either type of prosthetic valve for patients aged 60 to 70 years and mechanical prosthesis for patients aged less than 60 years

2019 ◽  
Vol 3 (02) ◽  
pp. 099-100
Author(s):  
Ujjwal Kumar Chowdhury ◽  
Niwin George ◽  
Sukhjeet Singh ◽  
Poonam Malhotra Kapoor ◽  
Lakshmi Kumari Sankhyan ◽  
...  

AbstractWe performed Dacron patch closure of ventricular septal defect with concomitant aortic valve replacement using a St. Jude Medical mechanical aortic prosthesis for a patient with ventricular septal defect and severely deformed and irreparable aortic valve. We highlight the technical details of the procedure to prevent paravalvular aortic leakage and residual ventricular septal defect.


2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Roberto Menè ◽  
Michele Tomaselli ◽  
Mara Gavazzoni ◽  
Francesco Maisano ◽  
Gianfranco Parati ◽  
...  

Abstract A 32-year-old female was referred to our outpatient clinic for exertional dyspnoea that had worsened in the preceding months. She had a history of mitral and aortic valve replacement with bileaflet mechanical prosthesis (St. Jude Master n. 25 and Medtronic Open Pivot n. 16, respectively) for rheumatic heart disease. A recent echocardiography showed borderline-high trans-aortic gradients (mean 26 mmHg, peak 42 mmHg). Transthoracic echocardiography revealed abnormal aortic transprosthetic flow (peak velocity 442 cm/s, mean gradient 48 mmHg). Continuous Wave Doppler signal was rounded with a long acceleration time (108 ms). Effective orifice area (EOA) was 0.8 cmq (index EOA 0.48 cmq/mq) and Doppler Velocity Index 0.28. Further investigations revealed no signs of infections but suboptimal anticoagulation (INR 2.5). Transesophageal 3D echocardiography was suggestive for hypomobility of the prosthetic leaflets and the presence of an isoechoic mass encircling the ventricular side of the aortic prosthesis compatible with pannus overgrowth. Cardiac CT confirmed the presence of a symmetrical reduction in the systolic opening of both leaflets. The patient underwent a redo of aortic valve replacement that confirmed the presence of an asymmetric subprosthetic pannus overgrowing on the previously implanted surgical pledgets. After pannus debritment a St. Jude Regent n. 21 was implanted. The patient experienced complete symptomatic resolution. We presented the case of a prosthetic aortic valve dysfunction due to a combination of patient-prosthesis mismatch and pannus overgrowth. In our patient, as assessed in the old echocardiographic examinations, the presence of mildly elevated transprosthetic gradients was suggestive for prosthesis undersizing related to body surface area. In this scenario, subvalvular pannus formation caused significant changes in prosthetic valve transvalvular flow dynamic leading to prosthesis dysfunction. This case emphasises the crucial role of echocardiographic follow up in detection of causes of prosthetic heart valve dysfunction and how optimal valve sizing is paramount in aortic valve replacement.


2019 ◽  
Vol 3 (02) ◽  
pp. 097-098
Author(s):  
Ujjwal K. Chowdhury ◽  
Niwin George ◽  
Poonam Malhotra Kapoor ◽  
Sukhjeet Singh ◽  
Lakshmi Kumari Sankhyan ◽  
...  

AbstractWe performed explantation of a chronically thrombosed St. Jude Medical mechanical mitral prosthesis with failed thrombolysis and re-replacement of the mitral valve using another St. Jude Medical mechanical mitral prosthesis. The technical details of explantation and re-implantation without causing injury to the cardiac chambers, great vessels, and atrioventricular groove and the importance of elective femoro-femoral bypass prior to sternotomy has been described.


2007 ◽  
Vol 83 (6) ◽  
pp. 2050-2053 ◽  
Author(s):  
Tohru Takaseya ◽  
Takemi Kawara ◽  
Shigehiko Tokunaga ◽  
Michitaka Kohno ◽  
Yasuhisa Oishi ◽  
...  

2021 ◽  

Reoperations for a dysfunctional mechanical aortic valve prosthesis are usually performed with a repeat sternotomy. Reopening the chest may be associated with a heart structure tear, bleeding, excessive transfusion, and a possible unfavorable outcome. Experience performing a redo aortic valve replacement with a minimally invasive approach and avoiding lysis of the pericardial adhesions is growing. We describe a redo aortic valve replacement procedure performed because of subvalvular pannus formation in a patient with a mechanical prosthesis. A partial J-shaped hemisternotomy at the 3rd intercostal space was performed; the ascending aorta was exposed and the valve was replaced with a sutureless bioprosthesis. The video tutorial shows the surgical approach, cardiopulmonary bypass solutions, and sutureless valve deployment.


2014 ◽  
Vol 78 (11) ◽  
pp. 2688-2695 ◽  
Author(s):  
Takahiro Nishida ◽  
Hiromichi Sonoda ◽  
Yasuhisa Oishi ◽  
Hideki Tatewaki ◽  
Yoshihisa Tanoue ◽  
...  

Critical Care ◽  
10.1186/cc616 ◽  
1999 ◽  
Vol 3 (Suppl 1) ◽  
pp. P243
Author(s):  
F Guarracino ◽  
D De Cosmo ◽  
D Penzo ◽  
M Tedesco ◽  
A Bossi ◽  
...  

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