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https://www.readbyqxmd.com/read/28222495/reversible-thrombotic-mitral-valve-stenosis-after-transcatheter-mitral-valve-replacement-tmvr-is-life-long-anticoagulation-therapy-necessary
#1
Vladan Hudec, Martin Bena, Panagiotis Artemiou, Ivo Gasparovic, Michal Hulman
We describe a case of reversible thrombotic mitral valve stenosis following a valve-in-ring transcatheter mitral valve replacement. Life-long oral anticoagulation in patients who underwent transcatheter mitral valve replacement might be beneficial.
February 21, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28220650/transcatheter-aortic-valve-replacement-and-renal-function-a-complex-relationship
#2
EDITORIAL
Ruben James Rodriguez, Anand Prasad
No abstract text is available yet for this article.
February 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28220647/gender-inequalities-in-transcatheter-aortic-valve-replacement-the-jury-is-still-out
#3
EDITORIAL
Jose F Condado, Peter C Block
No abstract text is available yet for this article.
February 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28219920/impact-of-coronary-artery-disease-severity-assessed-with-the-syntax-score-on-outcomes-following-transcatheter-aortic-valve-replacement
#4
Jean-Michel Paradis, Jonathon M White, Philippe Généreux, Marina Urena, Darshan Doshi, Tamim Nazif, Rebecca Hahn, Isaac George, Omar Khalique, Kishore Harjai, Laura Lasalle, Benoit M Labbé, Robert DeLarochellière, Daniel Doyle, Éric Dumont, Siamak Mohammadi, Martin B Leon, Josep Rodés-Cabau, Susheel Kodali
BACKGROUND: The influence of coronary artery disease (CAD) on clinical and echocardiographic outcomes after transcatheter aortic valve replacement (TAVR) is still controversial. We sought to evaluate the impact of CAD severity as measured by the SYNTAX score (SS) on patients undergoing TAVR. METHODS AND RESULTS: A total of 377 patients who underwent TAVR in 2 high-volume centers in North America were included in our retrospective analysis. A blinded angiographic core laboratory calculated the SS on all available coronary angiograms with the use of quantitative coronary analysis...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28219908/a-case-of-right-middle-cerebral-artery-tendonectomy-following-mitral-valve-replacement-surgery
#5
Mary C Thomas, Josser E Delgado Almandoz, Adam J Todd, Mark L Young, Jennifer L Fease, Jill Marie Scholz, Anna M Milner, Maximilian Mulder, Yasha Kayan
Following mechanical mitral valve replacement surgery, a 69-year-old woman had an ischemic stroke in the right middle cerebral artery territory. Mechanical thrombectomy showed the embolus to be a piece of chordae tendineae excised during the valve replacement surgery.
February 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28219851/understanding-the-requirements-of-self-expandable-stents-for-heart-valve-replacement-radial-force-hoop-force-and-equilibrium
#6
María Sol Cabrera, Cees W J Oomens, Frank P T Baaijens
A proper interpretation of the forces developed during stent crimping and deployment is of paramount importance for a better understanding of the requirements for successful heart valve replacement. The present study combines experimental and computational methods to assess the performance of a nitinol stent for tissue-engineered heart valve implantation. To validate the stent model, the mechanical response to parallel plate compression and radial crimping was evaluated experimentally. Finite element simulations showed good agreement with the experimental findings...
February 7, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28219665/comparison-of-hospital-outcome-of-transcatheter-versus-surgical-aortic-valve-replacement-in-patients-with-diabetes-mellitus-from-the-nationwide-inpatient-sample
#7
Tomo Ando, Emmanuel Akintoye, Tesfaye Telila, Alexandros Briasoulis, Hisato Takagi, David P Slovut, Theodore Schreiber, Cindy L Grines, Luis Afonso
The comparative outcomes of transcatheter aortic valve replacement (TAVR) versus surgical aortic valve replacement (SAVR) in diabetes mellitus (DM) patients are scarce. We aimed to assess and compare the outcomes of TAVR versus SAVR in DM patients using the Nationwide Inpatient Sample database from 2011 to 2013. A complete case analysis was performed for the multivariate analysis and cases with missing data were excluded. The primary end point was in-patient all-cause mortality and secondary outcomes were perioperative complications...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28219578/valved-conduit-attached-to-left-ventricular-outflow-tract-for-valve-detachment-in-beh%C3%A3-et-s-disease
#8
Liang-Wan Chen, Xi-Jie Wu, Hua Cao, Xiao-Fu Dai
Standard aortic valve replacement for aortic regurgitation caused by Behçet's disease is frequently complicated by postoperative recurrent prosthetic valve detachment. To prevent this, we have developed a modified Bentall procedure, in which the valved conduit is proximally attached to the left ventricular outflow tract instead of to the fragile annulus, based on the fact that the left ventricular outflow tract myocardium is rarely involved in Behçet's disease. This modified Bentall procedure was performed in 5 Behçet's disease patients with prosthetic valve detachment after primary aortic valve replacement, and satisfactory results were achieved...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219563/repeated-prosthetic-mitral-valve-thrombosis-in-fluke%C3%A2-infection-induced-hypereosinophilic-syndrome
#9
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
https://www.readbyqxmd.com/read/28219556/igg4-related-disease-causing-rapid-evolution-of-a-severe-aortic-valvular-stenosis
#10
Samuel Bruls, Audrey Courtois, Philippe Delvenne, Roland Hustinx, Michel Moutschen, Laurence De Leval, Jean-Olivier Defraigne, Natzi Sakalihasan
Immunoglobulin G4-related systemic disease (IgG4-RSD) is a recognized emerging entity characterized by chronic fibroinflammation that can affect every organ but rarely affects the cardiovascular system. We report a rare case of IgG4-RSD involving an aortic valve that resulted in rapid progression of an aortic valvular stenosis and was successfully treated by aortic valve replacement and corticosteroids.
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219555/right-ventricular-outflow-tract-obstruction-due-to-immunoglobulin-g4-related-disease
#11
Masaru Ishida, Taichi Sakaguchi, Shigeru Miyagawa, Hiroyuki Nishi, Yasushi Yoshikawa, Satsuki Fukushima, Ai Kawamura, Takayoshi Ueno, Hatsue Ishibashi-Ueda, Yoshiki Sawa
A 64-year-old man with extensive tumorous infiltration of the pulmonary valve underwent partial resection of a tumor of the right ventricular outflow tract and replacement of the affected valve. A diagnosis of immunoglobulin-G4 related disease of the heart was made based on the immunohistologic findings. One year after the surgical resection, growth of the tumorous mass was observed, and steroid therapy was initiated. He had no sign of tumor progression four years after the steroid therapy.
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219552/unusual-gastrointestinal-bleeding-after-sutureless-aortic-valve-replacement-a-word-of-caution
#12
Jules Iquille, Joseph Nader, Eric Colpart, Thierry Caus
We report the clinical case of a male patient who presented, after an aortic valve replacement with a rapid deployment bioprosthesis, a Heyde-like syndrome, secondary to a moderate aortic paravalvular leakage. All the digestive and hematologic investigations confirmed the diagnosis. A redo surgery to fill the paravalvular gap was accomplished and the postoperative course was uneventful, with a normalization of the biological parameters. To our knowledge, this is the first described case of such a complication with the new generation of sutureless bioprosthesis...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219551/concomitant-endografting-of-a%C3%A2-type-b-aortic-dissection-during-transfemoral-aortic-valve-replacement
#13
Arman Kilic, Mary A Siki, Wilson Y Szeto, Joseph E Bavaria, Saif Anwaruddin, Nimesh D Desai
An 87-year-old woman with severe aortic stenosis underwent a transfemoral transcatheter aortic valve replacement (TAVR). Intraoperative transesophageal echocardiography demonstrated a well-seated valve with no paravalvular leak; however, a new acute type B aortic dissection was identified. Endografts were delivered through the TAVR sheath and deployed, effectively treating the dissection. The patient did well postoperatively, with imaging at 2 years demonstrating a well-functioning aortic valve and no migration or endoleak of the thoracic endografts...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219543/transcatheter-aortic-valve-replacement-how-i-teach-it
#14
EDITORIAL
Ross M Reul, Michael J Reardon
No abstract text is available yet for this article.
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217062/anesthetic-management-of-a-case-of-gilbert-s-syndrome-for-mitral-and-aortic-valve-replacement-role-of-transesophageal-echocardiography
#15
P S Nagaraja, Naveen G Singh, S Subash, N Manjunatha, C G Prabhushankar, N Sathish
Gilbert's syndrome (GS) is an autosomal inherited disorder characterized by relative deficiency of glucuronyl transferase and poor uptake of unconjugated bilirubin by hepatocytes. Cardiac surgery on cardiopulmonary bypass (CPB) in these patients triggers further hepatic dysfunction. Transesophageal echocardiography (TEE) and Doppler assessment of hepatic vein help in assessing hepatic blood flow (HBF) during cardiac surgery. Here, we discuss anesthetic management and role of TEE in maintaining HBF perioperatively in a 25-year-old male patient with GS undergoing double valve replacement with tricuspid valve plasty...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216623/development-of-a-novel-individualized-warfarin-dose-algorithm-based-on-a-population-pharmacokinetic-model-with-improved-prediction-accuracy-for-chinese-patients-after-heart-valve-replacement
#16
Yu-Bin Zhu, Xian-Hua Hong, Meng Wei, Jing Hu, Xin Chen, Shu-Kui Wang, Jun-Rong Zhu, Feng Yu, Jian-Guo Sun
The gene-guided dosing strategy of warfarin generally leads to over-dose in patients at doses lower than 2 mg/kg, and only 50% of individual variability in daily stable doses can be explained. In this study, we developed a novel population pharmacokinetic (PK) model based on a warfarin dose algorithm for Han Chinese patients with valve replacement for improving the dose prediction accuracy, especially in patients with low doses. The individual pharmacokinetic (PK) parameter - apparent clearance of S- and R-warfarin (CLs) was obtained after establishing and validating the population PK model from 296 recruited patients with valve replacement...
February 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28215468/outcome-of-patients-undergoing-tavr-with-and-without-the-attendance-of-an-anesthesiologist
#17
Maayan Konigstein, Jeremy Ben-Shoshan, David Zahler, Nir Flint, Gilad Margolis, Yoav Granot, Galit Aviram, Amir Halkin, Gad Keren, Shmuel Banai, Ariel Finkelstein
BACKGROUND: During the last few years there is a shift from performing Transcatheter Aortic Valve Replacement (TAVR) under general anesthesia towards conscious sedation and local anesthesia only. In the vast majority of centers, sedation is guided by a qualified anesthesiologist. In our center, all TAVR procedures are being performed under local anesthesia and mild sedation, however, since September 2014, a large portion of TAVR procedures are being performed under local anesthesia without the presence of an anesthesiologist...
February 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28214796/routine-predeployment-balloon-aortic-valvuloplasty-during-transcatheter-aortic-valve-replacement-time-to-move-on
#18
EDITORIAL
Marie-France Poulin, Clifford J Kavinsky
No abstract text is available yet for this article.
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28214000/comparison-of-results-of-tricuspid-valve-repair-versus-replacement-for-severe-functional-tricuspid-regurgitation
#19
Jeong Yoon Jang, Ran Heo, Sahmin Lee, Joon Bum Kim, Dae-Hee Kim, Sung-Cheol Yun, Jong-Min Song, Jae-Kwan Song, Jae-Won Lee, Duk-Hyun Kang
The optimal decision regarding whether to repair or replace the tricuspid valve (TV) remains controversial in patients with very severe functional tricuspid regurgitation (TR). We sought to compare clinical outcomes of TV repair versus replacement for very severe TR associated with severe TV tethering. We included 96 consecutive patients (20 men, 58 ± 11 years of age) who had both severe tethering of TV and very severe functional TR and consequently underwent TV surgery during left-sided valve surgery. TV repair was performed on 79 patients (repair group), whereas 17 patients underwent TV replacement (replacement group)...
January 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28213846/fixation-of-bovine-pericardium-based-tissue-biomaterial-with-irreversible-chemistry-improves-biochemical-and-biomechanical-properties
#20
H Tam, W Zhang, D Infante, N Parchment, M Sacks, N Vyavahare
Bioprosthetic heart valves (BHVs), derived from glutaraldehyde crosslinked (GLUT) porcine aortic valve leaflets or bovine pericardium (BP), are used to replace defective heart valves. However, valve failure can occur within 12-15 years due to calcification and/or progressive structural degeneration. We present a novel fabrication method that utilizes carbodiimide, neomycin trisulfate, and pentagalloyl glucose crosslinking chemistry (TRI) to better stabilize the extracellular matrix of BP. We demonstrate that TRI-treated BP is more compliant than GLUT-treated BP...
February 17, 2017: Journal of Cardiovascular Translational Research
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