scholarly journals An Unusual Case of Pannus Formation - A Late Postoperative Complication of a Prosthetic Valve Replacement Causing Severe Cardiomyopathy

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Carreon AM ◽  
◽  
Mohsin I ◽  
Watson B ◽  
Carter RN ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Valve Replacement ◽  
Prosthetic Valve ◽  
Severe Aortic Stenosis ◽  
Surgical Excision ◽  
Valve Prosthesis ◽  
Pannus Formation ◽  
Left Main ◽  
Coronary Syndrome ◽  
Ct Angiogram

There are several well-known long-term complications following prosthetic valve replacement. Pannus formation is one of the rare complications whose estimated incidence varies between 0.3% and 1.3% per patient-year [1]. The exact etiology of pannus formation is unknown but histopathologically, pannus formation is due to fibroelastic hyperplasia that variably occurs after valve implantation [2]. The rarity and acute coronary syndrome like clinical presentation makes pannus formation a clinically important diagnosis during initial presentation. Workup preferably includes Transthoracic Echocardiography (TEE) with or without CT angiography. Management includes urgent or emergent surgical excision of the pannus with or without re-replacement of the aortic valve [1]. We present a 66-year-old female who presented with typical angina symptoms along with diffuse ischemic EKG changes five years after aortic valve replacement surgery with Trifecta Bioprosthesis due to severe aortic stenosis with Non-ST Elevation Myocardial Infarction (NSTEMI). Coronary angiography done on admission showed left main ostial stenosis of 90-95 % in proximity to the aortic valve prosthesis. A Transthoracic Echocardiogram (TTE) revealed an ejection fraction of 30-35 % with global hypokinesia but did not suggest any valve dysfunction. CT angiogram was done the next day which revealed a noncalcified plaque (pannus) greater than 75% occlusion in the left main in proximity of the aortic valve. Despite expedited care and surgical evaluation, unfortunately the patient decompensated in the surgical operating room and did not survive.

scholarly journals Obstruction of 2 Coronary Arteries from Different Causes Immediately after Transapical Transcatheter Aortic Valve Replacement

2020 ◽  
Vol 47 (1) ◽  
pp. 30-34
Author(s):  
Umihiko Kaneko ◽  
Ryuji Koshima ◽  
Hirosato Doi ◽  
Tsutomu Fujita
Keyword(s):  
Coronary Artery ◽  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Coronary Arteries ◽  
Transcatheter Aortic Valve Replacement ◽  
Severe Aortic Stenosis ◽  
Rare Complication ◽  
Left Main ◽  
Transcatheter Aortic Valve

Coronary obstruction, a rare complication of transcatheter aortic valve replacement, can be fatal. Few data exist on this phenomenon, and, to date, authors have reported only single coronary lesions. We present a case in which 2 coronary arteries obstructed immediately after transapical transcatheter aortic valve replacement. The patient was an 81-year-old woman with symptomatic severe aortic stenosis who underwent transapical transcatheter aortic valve replacement. Immediately after an Edwards Sapien XT valve was deployed, she experienced sudden cardiogenic shock resulting from obstruction of the left main coronary artery ostium and the distal left anterior descending coronary artery. The left main obstruction was caused by direct compression from a large calcified mass and the valve frame. The left anterior descending coronary artery obstruction was caused by ambient myocardial tightening and external compression around the apical sutures. Revascularization was achieved through coronary stent placement and suture removal, respectively. Our patient's case highlights the risk for coronary obstructions after transapical transcatheter aortic valve replacement, and we discuss how they can be managed.

scholarly journals Left Main Coronary Ostial Stenosis after Aortic Valve Replacement: A Case Report

2016 ◽  
Vol 9 ◽  
pp. CCRep.S40851 ◽  
Author(s):  
Munish Sharma ◽  
Daniel Mascarenhas
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Coronary Intervention ◽  
Left Ventricular ◽  
Left Main ◽  
Coronary Syndrome ◽  
Coronary Ostial Stenosis ◽  
Exact Etiology ◽  
Life Threatening

Coronary ostial stenosis is a rare but potentially life-threatening complication of aortic valve replacement (AVR). It can present potential complications such as acute coronary syndrome, left ventricular failure, ventricular arrhythmias, or sudden death. Exact pathogenetic mechanism is not known, but a few hypotheses have been proposed. We present a case of left main coronary stenosis 11 months after AV R was done for symptomatic critical aortic stenosis. High index of clinical suspicion and timely coronary angiography helped to determine the exact etiology. A percutaneous coronary intervention was done emergently. The patient has done very well so far.

scholarly journals Prosthetic Valve Endocarditis with Valvular Obstruction after Transcatheter Aortic Valve Replacement

2015 ◽  
Vol 42 (2) ◽  
pp. 172-174 ◽  
Author(s):  
Christine Pabilona ◽  
Bernard Gitler ◽  
Jeffrey A. Lederman ◽  
Donald Miller ◽  
Theodore N. Keltz
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Transcatheter Aortic Valve Replacement ◽  
Prosthetic Valve ◽  
Heart Surgery ◽  
Severe Aortic Stenosis ◽  
Open Heart Surgery ◽  
Prosthetic Valve Endocarditis ◽  
Transcatheter Aortic Valve

Patients with severe aortic stenosis who are at high risk for open-heart surgery might be candidates for transcatheter aortic valve replacement (TAVR). To our knowledge, this is the first report of Streptococcus viridans endocarditis that caused prosthetic valve obstruction after TAVR. A 77-year-old man who had undergone TAVR 17 months earlier was admitted because of evidence of prosthetic valve endocarditis. A transthoracic echocardiogram revealed a substantial increase in the transvalvular peak gradient and mean gradient in comparison with an echocardiogram of 7 months earlier. A transesophageal echocardiogram showed a 1.5-cm vegetation obstructing the valve. Blood cultures yielded penicillin-sensitive S. viridans. The patient was hemodynamically stable and was initially treated with vancomycin because of his previous penicillin allergy. Subsequent therapy with levofloxacin, oral penicillin (after a negative penicillin skin test), and intravenous penicillin eliminated the symptoms of the infection. Transcatheter aortic valve replacement is a relatively new procedure, and sequelae are still being discovered. We recommend that physicians consider obstructive endocarditis as one of these.

Transcatheter Aortic Valve Implantation after Previous Mechanical Mitral Valve Replacement: Expanding Indications?

2011 ◽  
Vol 14 (3) ◽  
pp. 166 ◽  
Author(s):  
Carsten J. Beller ◽  
Raffi Bekeredjian ◽  
Ulrike Krumsdorf ◽  
R�diger Leipold ◽  
Hugo A. Katus ◽  
...  
Keyword(s):  
High Risk ◽  
Mitral Valve ◽  
Aortic Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Severe Aortic Stenosis ◽  
Valve Prosthesis ◽  
Transcatheter Aortic Valve ◽  
Mitral Valve Prosthesis ◽  
Risk Patients

<p><b>Background:</b> Cardiac operation for severe aortic stenosis after previous mitral valve replacement is a surgical challenge in older patients with multiple morbidities. Transcatheter aortic valve implantation (TAVI) after previous mechanical mitral valve replacement has been considered a high-risk procedure, owing to possible interference with the mitral valve prosthesis.</p><p><b>Methods:</b> Since August 2008, 5 female high-risk patients with severe aortic stenosis and previous mitral valve replacement (mean � SD age, 80 � 5.1 years; logistic EuroSCORE, 39.3% � 20.5%) underwent TAVI with a pericardial xenograft valve that was fixed with a stainless steel, balloon-expandable stent (Edwards Lifesciences SAPIEN). We used a transapical approach in 4 patients and a transfemoral approach in 1 patient. Transesophageal echocardiography and multidetector computed tomography were used for preoperative planning and assessment of operation feasibility. The mean distance between the aortic annulus and the mitral valve prosthesis was 10 � 1 mm (range, 9-11 mm).</p><p><b>Results:</b> TAVI was performed successfully in all 5 patients. There was no direct or functional interference with the mechanical mitral valve prostheses. Echocardiography revealed good valve function with no more than mild paravalvular incompetence early in the postoperative period and during routine follow-up. There were no neurologic events. After an initially uneventful course with good aortic valve function at the most recent echocardiography evaluation, however, 2 of the patients died from fulminant pneumonia on postoperative days 4 and 48.</p><p><b>Conclusion:</b> TAVI is technically feasible in high-risk patients after previous mechanical mitral valve replacement; however, careful patient selection is mandatory with respect to preoperative clinical status and anatomic dimensions regarding the distance between aortic annulus and mitral valve prosthesis.</p>

Prosthesis-Patient Mismatch Causes a Significantly Increased Risk of Operative Mortality in Aortic Valve Replacement

2014 ◽  
Vol 17 (3) ◽  
pp. 127 ◽  
Author(s):  
Muhammad Shahzeb Khan ◽  
Faizan Imran Bawany ◽  
Asadullah Khan ◽  
Mehwish Hussain
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Operative Mortality ◽  
Univariate Analysis ◽  
Female Gender ◽  
Valve Prosthesis ◽  
Predictors Of Mortality ◽  
Increased Risk ◽  
Urgent Operation

<p><b>Background:</b> Small aortic prosthesis can lead to prosthesis-patient mismatch (PPM). Implanting such small prosthesis remains a controversial issue. This study was done to investigate whether or not PPM causes an increased operative mortality in aortic valve replacement (AVR).</p><p><b>Methods:</b> Two-hundred-two consecutive patients undergoing primary AVR in a tertiary hospital were included. The sample was grouped according to the aortic valve prosthesis size: ?21 mm (small) and >21 mm (standard). The effect of variables on outcomes was determined by univariate and multivariable regression analyses.</p><p><b>Results:</b> PPM was found significantly more among patients with AVR ? 21mm (<i>P</i> < 0.0001). Moreover, the likelihood of mortality also was significantly higher in these patients (<i>P</i> < 0.0001). Univariate analysis demonstrated small prosthesis size, urgent operation, PPM, female gender, and NYHA Class IV as significant predictors of mortality. Multivariate regression identified female gender, PPM, and urgent operation as the key independent predictors of mortality.</p><p><b>Conclusion:</b> PPM and female gender are significant predictors of mortality. Care should be taken to prevent PPM by implanting larger prosthesis especially in females.</p>

Acute coronary ostial stenosis resulting from the left main trunk stenting deformity during the aortic valve replacement

2019 ◽  
Vol 85 (3) ◽  
Author(s):  
Takeshi Kasuga ◽  
Hiroyuki Kinoshita ◽  
Kazunobu Otake ◽  
Takashi Yamasaki ◽  
Hisanari Ishii
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Left Main ◽  
Main Trunk ◽  
Left Main Trunk ◽  
Coronary Ostial Stenosis
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