scholarly journals Fortune or misfortune: asymptomatic, delayed presentation of complete dehiscence of mechanical aortic valve conduit and pseudoaneurysm

2016 ◽  
pp. bcr2016216320
Author(s):  
Kyung Taek Oh ◽  
Joseph Derose ◽  
Cynthia Taub
Keyword(s):  
Aortic Valve ◽  
Delayed Presentation ◽  
Valve Conduit ◽  
Mechanical Aortic Valve

Emergency aortic root replacement with the Bioconduit stentless aortic valve conduit

2020 ◽  
Vol 25 (6) ◽  
pp. 2055-2059
Author(s):  
ADRIAN TULIN ◽  
◽  
OVIDIU STIRU ◽  
MIRUNA LUANA MIULESCU ◽  
LAURA RADUCU ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Regurgitation ◽  
Aortic Root ◽  
Aortic Root Replacement ◽  
Bentall Operation ◽  
Severe Aortic Regurgitation ◽  
Valve Conduit ◽  
Successful Case ◽  
Valved Conduit

This report concerns a 73-year-old woman who presented with asymptomatic aortic root an-eurysm with severe aortic regurgitation. The purpose of this article is to present our first successful case for emergency aortic root replacement (Bentall operation) that involves annular implantation of a pericardial valved conduit (Bioconduit TM, Biointegral Surgical, Inc., Ontario, Canada) and to discuss some essential technical clue issues related to this approach.

Passing a Mechanical Aortic Valve With a Short Tip Dilator to Facilitate Aortic Arch Endovascular Branched Repair

2021 ◽  
pp. 152660282110025
Author(s):  
Nikolaos Konstantinou ◽  
Sven Peterss ◽  
Jan Stana ◽  
Barbara Rantner ◽  
Ramin Banafsche ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Arch ◽  
Stent Graft ◽  
Mechanical Valve ◽  
Valve Prosthesis ◽  
Proper Position ◽  
Mechanical Aortic Valve ◽  
Aortic Replacement ◽  
Custom Made ◽  
Aortic Valve Prosthesis

Purpose To present a novel technique to successfully cross a mechanical aortic valve prosthesis. Technique A 55-year-old female patient with genetically verified Marfan syndrome presented with a 5-cm anastomotic aneurysm of the proximal aortic arch after previous ascending aortic replacement due to a type A aortic dissection in 2007. The patient also underwent mechanical aortic valve replacement in 1991. A 3-stage hybrid repair was planned. The first 2 steps included debranching of the supra-aortic vessels. In the third procedure, a custom-made double branched endovascular stent-graft with a short 35-mm introducer tip was implanted. The mechanical valve was passed with the tip of the dilator on the lateral site of the leaflet, without destructing the valve and with only mild symptoms of aortic insufficiency, as one leaflet continued to work. This allowed the implantation of the stent-graft directly distally of the coronary arteries. Postoperative computed tomography angiography showed no endoleaks and patent coronary and supra-aortic vessels. Conclusion Passing a mechanical aortic valve prosthesis at the proper position is feasible and allows adequate endovascular treatment in complex arch anatomy. However, caution should be taken during positioning of the endovascular graft as the tip may potentially damage the valve prosthesis.

scholarly journals Isolated mechanical aortic valve replacement in rheumatic patients in a low- to middle-income country

2019 ◽  
Vol 157 (3) ◽  
pp. 886-893 ◽  
Author(s):  
Jacques Scherman ◽  
Rodgers Manganyi ◽  
Paul Human ◽  
Timothy Pennel ◽  
Andre Brooks ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Middle Income Country ◽  
Income Country ◽  
Middle Income ◽  
Mechanical Aortic Valve ◽  
Rheumatic Patients

Gated Cardiac CT is Useful for Assessment of Mechanical Aortic Valve Obstruction

2009 ◽  
Vol 18 ◽  
pp. S35
Author(s):  
J. Harker ◽  
T. Boga ◽  
C. Hamilton-Craig ◽  
J. Layland ◽  
M. Hansen ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Cardiac Ct ◽  
Mechanical Aortic Valve

Abstract 14789: Multimodality Imaging in Mycobacterium Chimaera Cardiovascular Infections

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Nicholas Y Tan ◽  
Alex D Tarabochia ◽  
Omar M Abu Saleh ◽  
Courtney Bennett
Keyword(s):  
Aortic Valve ◽  
Prosthetic Valve ◽  
Multimodality Imaging ◽  
Fluid Collection ◽  
Prosthetic Valve Endocarditis ◽  
The Other ◽  
Aortic Prosthesis ◽  
Fdg Uptake ◽  
Valve Conduit ◽  
Pet Ct

Introduction: Mycobacterium Chimaera (MC) infections following cardiovascular surgery are challenging to diagnose given their insidious presentation. We therefore reviewed the various imaging modalities used to diagnose these infections at Mayo Clinic. Methods: Cases from 01/01/2010-06/01/2020 were identified using electronic medical records. Demographics and clinical history were collected. Imaging studies, including transthoracic echocardiogram (TTE), transesophageal echocardiogram (TEE), positron emission tomography / computed tomography (PET/CT), cardiac CT (CCT), and cardiac magnetic resonance (CMR) were reviewed. Results: A total of 7 patients (85.7% male) were found. 6 underwent aortic valve replacement and 1 received an aortic composite valve conduit. Surgical dates ranged from 01/2010-12/2018. Mean age at presentation was 63.3 years. Mean time from surgery to symptom onset was 28.0 months. All patients underwent TTE and TEE; prosthetic valve endocarditis was identified in 6 cases between both, while CMR established the diagnosis in 1 case. TTE showed prosthetic valve obstruction in 2 cases and an anterior pseudoaneurysm in 1 case. TEE findings included thickened prosthesis and/or vegetations (n=5), thickened posterior root (n=4), and root abscess (n=3). Among the 3 patients who underwent PET/CT, 2 demonstrated increased fluorodeoxyglucose (FDG) uptake around the aortic prosthesis; in addition, 1 had elevated FDG uptake in the myocardium suggesting myocarditis. 1 patient did not have aortic prosthesis FDG uptake. In the 2 patients who had CCT, 1 showed a pseudoaneurysm that prompted suspicion for endocarditis, and the other revealed a fluid collection adjacent to the aortic valve conduit. 2 patients underwent CMR; 1 had aortic prosthesis thickening and patchy areas of myocardial delayed enhancement suspicious for myocarditis, whereas the other showed vegetation and an aortic root abscess. Conclusion: TTE plus TEE successfully identified MC prosthetic valve endocarditis in most cases with TEE having higher specificity. Advanced imaging techniques are helpful to support the diagnosis and assess for myocardial and/or aortic involvement. Combining these modalities is therefore crucial in unveiling this elusive organism.

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