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https://www.readbyqxmd.com/read/28330691/bioprosthetic-surgical-and-transcatheter-heart-valve-thrombosis
#1
Jeroen J Bax, Gregg W Stone
No abstract text is available yet for this article.
March 17, 2017: Lancet
https://www.readbyqxmd.com/read/28330690/subclinical-leaflet-thrombosis-in-surgical-and-transcatheter-bioprosthetic-aortic-valves-an-observational-study
#2
Tarun Chakravarty, Lars Søndergaard, John Friedman, Ole De Backer, Daniel Berman, Klaus F Kofoed, Hasan Jilaihawi, Takahiro Shiota, Yigal Abramowitz, Troels H Jørgensen, Tanya Rami, Sharjeel Israr, Gregory Fontana, Martina de Knegt, Andreas Fuchs, Patrick Lyden, Alfredo Trento, Deepak L Bhatt, Martin B Leon, Raj R Makkar
BACKGROUND: Subclinical leaflet thrombosis of bioprosthetic aortic valves after transcatheter valve replacement (TAVR) and surgical aortic valve replacement (SAVR) has been found with CT imaging. The objective of this study was to report the prevalence of subclinical leaflet thrombosis in surgical and transcatheter aortic valves and the effect of novel oral anticoagulants (NOACs) on the subclinical leaflet thrombosis and subsequent valve haemodynamics and clinical outcomes on the basis of two registries of patients who had CT imaging done after TAVR or SAVR...
March 19, 2017: Lancet
https://www.readbyqxmd.com/read/28330637/low-dose-and-slow-infusion-thrombolysis-for-prosthetic-valve-thrombosis-after-a-transcatheter-valve-in-the-mitral-position
#3
John Roosen, Peter Haemers, Peter Verhamme, Koen Ameloot, Herbert De Praetere
No abstract text is available yet for this article.
March 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28325458/chronic-subdural-hematoma-icu-management
#4
REVIEW
Jeremy T Ragland, Kiwon Lee
Patients with cSDH presenting with new or worsening neurological deficits, especially if they are debilitating and adversely affecting quality of life require urgent medical and surgical attention. Neurological and neurosurgical critical care team need to stabilize the patient by reversing any underlying coagulopathy states in order to prevent further hematoma expansion.In the event of brain herniation and presumed ICP elevation and CPP compromise, step-wise ICP management should be instituted promptly.Seizure prophylaxis treatment is reasonable...
April 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28319480/right-axillary-artery-cannulation-for-endovascular-repair-of-an-acute-type-a-aortic-dissection
#5
Corbin E Muetterties, Jeremy H Conklin, G William Moser, Grayson H Wheatley
We present the case of a 48-year-old woman with an acute type A aortic dissection that was treated with thoracic endovascular aortic repair at our institution. The patient was found to have a focal type A dissection with pericardial effusion but no tamponade physiology and no involvement of the aortic valve or root. We elected to treat the patient's type A aortic dissection with an endovascular stent because of the patient's favorable anatomy and no evidence of neurologic deficits or signs of distal malperfusion...
March 17, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28316327/obstructive-primary-cardiac-t-cell-lymphoma-a-case-report-from-senegal
#6
Simon Antoine Sarr, Abdou Majib Gaye, Fatou Aw, Jean de Dieu Nzambaza, Malick Bodian, Kana Babaka, Mouhamadou Bamba Ndiaye, Adama Kane, Maboury Diao, Serigne Abdou Ba
BACKGROUND Cardiac lymphoma is a rare entity, defined by the non-extra cardiac location at diagnosis. CASE REPORT Our patient was a 32-year-old female with no particular medical history, who presented with right heart failure with recurrent ascites and pleural effusion. There was a progressive worsening exertional dyspnea. On admission, examination revealed an irregular tachycardia at 170 beats per minute (bpm) and congestive heart failure. The electrocardiogram scored full tachyarrhythmia by atrial fibrillation with an average ventricular rate of 179 cycles per minute...
March 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28302715/late-thrombosis-of-a-mitral-bioprosthetic-valve-with-associated-massive-left-atrial-thrombus
#7
Preetham Muskula, Rigoberto Ramirez, A Michael Borkon, Michael L Main
An 84-year-old man presented 5 years following bioprosthetic mitral valve replacement with three months of worsening dyspnea on exertion. A new mitral stenosis murmur was noted on physical examination, and an electrocardiogram revealed newly recognized atrial fibrillation. Severe mitral stenosis (mean gradient = 13 mmHg) was confirmed by transthoracic echocardiography. Transesophageal echocardiography revealed markedly thickened mitral bioprosthetic leaflets with limited mobility, and a massive left atrial thrombus (> 4 cm in diameter) (see Figures 1A-D, and video files 1-4)...
March 16, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28290179/stroke-related-to-transcatheter-heart-valve-thrombosis
#8
Nicolaj C Hansson, Jonathon Leipsic, Tina Leetmaa, Ulrik M Mortensen, Henning R Andersen, Jesper M Jensen, Bjarne L Nørgaard
No abstract text is available yet for this article.
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28290178/multiple-valvular-complications-of-hypereosinophilic-syndrome
#9
Zoltán Pozsonyi, Szabolcs Benedek, Pál Sármán, Lívia Jánoskuti, Tivadar Hüttl, Astrid Apor
Endomyocardial fibrosis (EMF) is the most common cardiac abnormality in hyeperosinophilic syndrome (HES), sometimes complicated with mitral valve disease. Mitral valve disease without ventricular manifestation is very rare, however. Case reports link HES to prosthetic valve thrombosis (PVT), but the optimal type of prosthetic valve in HES is not known. Herein is reported the case of a young female HES patient with secondary mitral valve degeneration and severe regurgitation. A mechanical prosthetic valve was implanted six months after she was diagnosed with HES, but despite anticoagulation and antiplatelet therapy she developed PVT three months later...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28290167/simple-interrupted-suturing-for-redo-mitral-valve-replacement
#10
Hiroshi Furukawa, Taishi Tamura, Takeshi Honda, Hiroki Takiuchi, Masahiko Kuinose, Kazuo Tanemoto
BACKGROUND: An evaluation was made of the early clinical outcomes and efficacies of simple interrupted suturing (SIS) for redo mitral valve replacement (MVR). METHODS: Among 336 mitral valve surgery patients at the authors' institution between April 2000 and May 2014, a total of 21 redo MVR using SIS (12 women, nine men; mean age 67±11 years; range 32-80 years) participated in the study. Surgical indications for redo MVR were paravalvular leakage (PVL) in 10 patients, prosthetic valve endocarditis in five, mechanical valve thrombosis in three, and structural valve deterioration (SVD) of the bioprosthesis in three...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28289535/very-late-transcatheter-heart-valve-thrombosis
#11
Etienne L Couture, Serge Lepage, Jean-Bernard Masson, Benoit Daneault
We describe a case of very late transcatheter heart valve (THV) thrombosis of a first-generation SAPIEN prosthesis (Edwards Lifesciences, Irvine, CA) implanted in a 64-year-old woman with severe symptomatic aortic stenosis. More than 54 mo after implantation, she presented with severe symptomatic prosthesis dysfunction (stenosis) which was successfully treated with oral anticoagulation. To our knowledge, this is the tardiest case of THV thrombosis ever reported. This case should increase clinical awareness for THV thrombosis even beyond the first two-year period following implantation...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28263863/the-influence-of-surface-chemistry-on-adsorbed-fibrinogen-conformation-orientation-fiber-formation-and-platelet-adhesion
#12
Liudi Zhang, Brendan Casey, Dennis K Galanakis, Clement Marmorat, Shelby Skoog, Katherine Vorvolakos, Marcia Simon, Miriam H Rafailovich
Thrombosis is a clear risk when any foreign material is in contact with the bloodstream. Here we propose an immunohistological stain-based model for non-enzymatic clot formation that enables a facile screen for the thrombogenicity of blood-contacting materials. We exposed polymers with different surface chemistries to protease-free human fibrinogen. We observed that on hydrophilic surfaces, fibrinogen is adsorbed via αC regions, while the γ400-411 platelet-binding dodecapeptide on the D region becomes exposed, and fibrinogen fibers do not form...
March 2, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28262297/femoral-vein-homograft-as-right-ventricle-to-pulmonary-artery-conduit-in-stage-1-norwood-operation
#13
T K Susheel Kumar, Mario Briceno-Medina, Shyam Sathanandam, Vijaya M Joshi, Christopher J Knott-Craig
BACKGROUND: The polytetrafluoroethylene tube used as right ventricle to pulmonary artery conduit in the stage 1 Norwood operation is associated with risks of suboptimal branch pulmonary artery growth, thrombosis, free insufficiency, and long-term right ventricular dysfunction. Our experience with use of valved femoral vein homograft as right ventricle to pulmonary artery conduit is described. METHODS: Between June 2012 and December 2015, 15 neonates with hypoplastic left heart syndrome or complex single ventricle underwent stage 1 Norwood operation with valved segment of femoral vein homograft as right ventricle to pulmonary artery conduit...
March 2, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28247199/cost-effectiveness-of-genotype-guided-warfarin-dosing-in-patients-with-mechanical-heart-valve-replacement-under-the-fee-for-service-system
#14
Dong-Jin Kim, Ho-Sook Kim, Minkyung Oh, Eun-Young Kim, Jae-Gook Shin
BACKGROUND: Although studies assessing the cost effectiveness of genotype-guided warfarin dosing for the management of atrial fibrillation, deep vein thrombosis, and pulmonary embolism have been reported, no publications have addressed genotype-guided warfarin therapy in mechanical heart valve replacement (MHVR) patients or genotype-guided warfarin therapy under the fee-for-service (FFS) insurance system. OBJECTIVE: The aim of this study was to evaluate the cost effectiveness of genotype-guided warfarin dosing in patients with MHVR under the FFS system from the Korea healthcare sector perspective...
February 28, 2017: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/28242132/abducens-nerve-palsy-due-to-inferior-petrosal-sinus-thrombosis
#15
Shivam Om Mittal, Junaid Siddiqui, Bashar Katirji
Isolated unilateral abducens nerve palsy is usually due to ischemia, trauma or neoplasm. Dorello's canal is the space between the petrous apex and superolateral portion of the clivus, bound superiorly by Gruber's ligament. The abducens nerve travels with inferior petrosal sinus (IPS) though the Dorello's canal before entering the cavernous sinus. A 31-year-old man presented with neck pain, and binocular horizontal diplopia, worse looking towards left and at distance. He had a history of intravenous drug abuse but no history of hypertension or diabetes...
February 24, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28242079/long-term-follow-up-after-the-ross-procedure-a-single-center-22-year-experience
#16
Adriaan W Schneider, Hein Putter, Robert J M Klautz, Eline F Bruggemans, Eduard R Holman, Regina Bökenkamp, Mark G Hazekamp
BACKGROUND: The aim of this study was to analyze long-term outcomes after the Ross procedure, focusing on autograft function and risk of reoperation in time. METHODS: Between February 1994 and February 2016, 154 patients underwent the Ross (n = 105) and Ross-Konno (n = 49) procedure at our institution and were included in this study. Data were collected retrospectively from patients' medical records or through telephone contact. Competing risks analyses were performed to determine incidences of death and reoperation...
February 24, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28238250/atrial-septostomy-as-a-bridge-to-replace-a-thrombosed-mechanical-aortic-valve-requiring-extracorporeal-membrane-oxygenation
#17
Adarsh Katamreddy, David F Snipelisky, Mackram F Eleid
Atrial septostomy is an infrequently used percutaneous technique to decompress either side of the heart. Here, a case is reported of atrial septostomy performed as an emergency 'bridge' procedure in a hemodynamically unstable 62-year-old man with acute mechanical prosthetic aortic valve thrombosis requiring peripheral venoarterial (VA) extracorporeal membrane oxygenation (ECMO). ECMO was placed emergently as the patient suffered cardiac arrest during anesthesia induction for surgical replacement of the thrombosed prosthetic aortic valve...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28238243/improved-pig-model-to-evaluate-heart-valve-thrombosis
#18
Umashankar Payanam Ramachandra, Sachin J Shenoy, Sabareeswaran Arumugham
BACKGROUND AND AIM OF STUDY: Although the sheep is the most acceptable animal model for heart valve evaluation, it has severe limitations for detecting heart valve thrombosis during preclinical studies. While the pig offers an alternative model and is better for detecting prosthetic valve thrombogenicity, it is not often used because of inadvertent valve thrombosis or bleeding complications. The study aim was to develop an improved pig model which can be used reliably to evaluate mechanical heart valve thrombogenicity...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28237287/single-antiplatelet-therapy-in-patients-with-contraindication-to-dual-antiplatelet-therapy-after-transcatheter-aortic-valve-implantation
#19
Antonio Mangieri, Richard J Jabbour, Claudio Montalto, Matteo Pagnesi, Damiano Regazzoli, Marco B Ancona, Francesco Giannini, Akihito Tanaka, Letizia Bertoldi, Fabrizio Monaco, Eustachio Agricola, Manuela Giglio, Roberto Mattioli, Luca Ferri, Matteo Montorfano, Alaide Chieffo, Ottavio Alfieri, Antonio Colombo, Azeem Latib
There is limited evidence to support decision-making regarding discharge antiplatelet therapy after transcatheter aortic valve implantation (TAVI). The aim of this study was to assess the outcome of patients discharged on single-antiplatelet therapy (SAPT) or dual-antiplatelet therapy (DAPT) after TAVI. Consecutive patients were identified by retrospective review of a dedicated TAVI database of a single high-volume center in Milan, Italy, from January 2009 to May 2015. Our primary end point was the rate of net adverse clinical events defined as a composite of all-cause mortality, major bleeding requiring hospitalization, cerebrovascular accidents, redo-TAVI or surgical aortic valve replacement, and valve thrombosis...
April 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28219563/repeated-prosthetic-mitral-valve-thrombosis-in-fluke%C3%A2-infection-induced-hypereosinophilic-syndrome
#20
Yiran Zhang, Liang Ma
A 43-year-old female patient with mitral valve stenosis and hypereosinophilia on admission received mechanical mitral valve replacement. During the 2 years after the first surgery, the patient underwent two mitral valve revision operations for repeated prosthetic mitral valve thrombosis. During the 2-year period, the patient's absolute eosinophil count was found elevated repeatedly. Finally, fluke antibody detection revealed fluke infection and, after praziquantel treatment, a normal level of absolute eosinophil count has been maintained and recurrent thrombosis has not occurred for 18 months...
March 2017: Annals of Thoracic Surgery
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