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https://www.readbyqxmd.com/read/27911025/effect-of-balloon-expandable-transcatheter-aortic-valve-replacement-positioning-a-patient-specific-numerical-model
#1
Matteo Bianchi, Gil Marom, Ram P Ghosh, Harold A Fernandez, James R Taylor, Marvin J Slepian, Danny Bluestein
Transcatheter aortic valve replacement (TAVR) has emerged as a life-saving and effective alternative to surgical valve replacement in high-risk, elderly patients with severe calcific aortic stenosis. Despite its early promise, certain limitations and adverse events, such as suboptimal placement and valve migration, have been reported. In the present study, it was aimed to evaluate the effect of various TAVR deployment locations on the procedural outcome by assessing the risk for valve migration. The deployment of a balloon-expandable Edwards SAPIEN valve was simulated via finite element analysis in a patient-specific calcified aortic root, which was reconstructed from CT scans of a retrospective case of valve migration...
December 2016: Artificial Organs
https://www.readbyqxmd.com/read/27909275/-pseudoaneurysm-formation-after-aortic-root-replacement-using-freestyle-porcine-bioprosthesis
#2
Tetsuro Uchida, Azumi Hamasaki, Atsushi Yamashita, Ken Nakamura, Jun Hayashi, Satoko Funata, Seigo Gomi, Mitsuaki Sadahiro
We report a case of pseudoaneurysm formation after implantation of Medtronic Freestyle stentless bioprosthesis with a full root technique. A 65-year-old man previously underwent aortic root replacement with a Freestyle bioprosthesis. Ten years after the initial operation, pseudoaneurysm of the aortic root with a diameter of 6 cm was observed by computed tomography. At the reoperation, there was no sign of infective endocarditis, and the pseudoaneurysm was found to originate from the ruptured left and noncoronary sinuses...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27903575/early-severe-coronary-artery-disease-and-aortic-coarctation-in-a-child-with-familial-hypercholesterolaemia
#3
Dina Labib, Haytham Soliman, Kareem Said, Khaled Sorour
An 11-year-old boy presented with easy fatigability, multiple xanthomas, and absent pedal pulsations. Laboratory workup showed severe hypercholesterolaemia and non-invasive imaging revealed 'normally functioning' bicuspid aortic valve and tight aortic coarctation. Coronary angiography showed severe right coronary artery (RCA) stenosis. Medical treatment resulted in significant improvement of dyslipidaemia. We successfully performed balloon dilation and stenting of his coarctation, as well as percutaneous coronary intervention for RCA lesion...
November 30, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27899119/clinical-outcome-and-hemodynamic-behavior-of-the-labcor-dokimos-plus-aortic-valve
#4
Torsten Christ, Konstantin Zhigalov, Wolfgang Konertz, Sebastian Holinski
BACKGROUND: The Labcor Dokimos Plus (LDP) is a stented externally mounted pericardial aortic bioprosthesis, which was recently introduced in Europe. Aims of the study are evaluation of operative and postoperative results as well as hemodynamic performance. METHODS: One hundred consecutive patients with a mean age of 65.9 ± 10.7 years (range 35-87) and a mean EuroSCORE II of 3.1 ± 3.9 (range 0.67-24.5) underwent aortic valve replacement with the LDP. Mean valve-size was 25...
November 29, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27888571/melody-valve-implantation-within-freestyle-stentless-porcine-aortic-heterograft
#5
James A Kuo, Ashlea A Feezel, Traci N Putnam, Deborah A Schutte
BACKGROUND: The Melody transcatheter pulmonary valve has been implanted successfully worldwide since its first implant in 2000. The vast majority of these valves have been implanted in pulmonary homografts. In our institution, the most common valve used for pulmonary valve replacement is the Medtronic Freestyle stentless porcine aortic heterograft. OBJECTIVE: We describe our experience implanting the Melody valve within the Freestyle heterograft. METHODS: Retrospective chart review was performed...
November 26, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27882709/technical-note-using-a-tracheal-stent-for-conservative-management-of-speaking-valve-associated-tracheo-oesophageal-fistula
#6
M Cunnane, S Patil, R Sothinathan, D Walker, M Gaulton, L Pitkin
Surgical voice rehabilitation is an essential dimension of treatment following total laryngectomy. The gold standard is tracheo-oesophageal puncture and speaking valve placement. Whilst offering excellent phonation in many patients, there is a well-documented risk of valve associated fistula formation, the incidence of which varies from 1 to 21% (1) . Risk factors for delayed valve associated tracheo-oesophageal fistula include post chemo-radiotherapy (salvage laryngectomy), oesophageal stricture, persistent fungal infection and poor patient compliance in managing their speaking valve(2) ...
November 24, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27873180/pledget-armed-sutures-affect-the-haemodynamic-performance-of-biologic-aortic-valve-substitutes-a-preliminary-experimental-and-computational-study
#7
Claudio Capelli, Chiara Corsini, Dario Biscarini, Francesco Ruffini, Francesco Migliavacca, Alfred Kocher, Guenther Laufer, Andrew M Taylor, Silvia Schievano, Martin Andreas, Gaetano Burriesci, Claus Rath
Surgical aortic valve replacement is the most common procedure of choice for the treatment of severe aortic stenosis. Bioprosthetic valves are traditionally sewed-in the aortic root by means of pledget-armed sutures during open-heart surgery. Recently, novel bioprostheses which include a stent-based anchoring system have been introduced to allow rapid implantation, therefore reducing the duration and invasiveness of the intervention. Different effects on the hemodynamics were clinically reported associated with the two technologies...
November 21, 2016: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/27865711/use-of-an-eptfe-covered-nitinol-self-expanding-stent-graft-for-the-treatment-off-pre-closure-device-failure-during-transcatheter-aortic-valve-replacement
#8
Arie Steinvil, Nelson Bernardo, Toby Rogers, Edward Koifman, Kyle Buchanan, M Chadi Alraies, Christian Shults, Rebecca Torguson, Petros G Okubagzi, Augusto D Pichard, Lowell F Satler, Itsik Ben-Dor, Ron Waksman
OBJECTIVES: Our aim was to describe our experience with the use of an ePTFE-covered nitinol self-expanding stent graft (GORE® VIABAHN® Endoprosthesis, Gore Medical, USA) placed in the common femoral artery for the treatment of suture-mediated pre-closure device failure following transcatheter aortic valve replacement (TAVR). BACKGROUND: Access site-related vascular complications (VC) following sheath removal related to pre-closure device failure during TAVR are common and treatment options may vary...
October 21, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27864470/percutaneous-pulmonary-valve-implantation-in-the-native-right-ventricular-outflow-tract-using-a-29-mm-edwards-sapien-3-valve
#9
Patcharapong Suntharos, Lourdes R Prieto
Percutaneous pulmonary valve implantation is now an acceptable treatment option. The Edwards SAPIEN valve, intended for transcatheter aortic valve implantation, has been used in patients whose landing zone diameter is >22 to 24 mm which is not suitable for Melody valve. We report a patient in whom we successfully placed the latest generation, Edwards SAPIEN 3 (ES3) in the pulmonary position. However, because of the short covered portion of this valve, there was a significant paravalvular leak through the stent struts requiring implantation of a second ES3 valve...
November 18, 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27864249/positive-predictive-value-of-cardiovascular-diagnoses-in-the-danish-national-patient-registry-a-validation-study
#10
Jens Sundbøll, Kasper Adelborg, Troels Munch, Trine Frøslev, Henrik Toft Sørensen, Hans Erik Bøtker, Morten Schmidt
OBJECTIVE: The majority of cardiovascular diagnoses in the Danish National Patient Registry (DNPR) remain to be validated despite extensive use in epidemiological research. We therefore examined the positive predictive value (PPV) of cardiovascular diagnoses in the DNPR. DESIGN: Population-based validation study. SETTING: 1 university hospital and 2 regional hospitals in the Central Denmark Region, 2010-2012. PARTICIPANTS: For each cardiovascular diagnosis, up to 100 patients from participating hospitals were randomly sampled during the study period using the DNPR...
November 18, 2016: BMJ Open
https://www.readbyqxmd.com/read/27861177/iatrogenic-right-coronary-artery-occlusion-following-tricuspid-valve-repair-case-report-of-a-rare-but-recognized-complication
#11
Bradford B Smith, Mark M Smith, Kent H Rehfeldt
Iatrogenic occlusion of the right coronary artery (RCA) is a rare complication after tricuspid valve surgery. We review the case of a 74-year-old female who presented for mitral and tricuspid valve annuloplasty. Unanticipated postcardiopulmonary bypass biventricular hypokinesis was encountered, necessitating extracorporeal support. Emergent coronary angiography demonstrated near-complete RCA occlusion from a taut periarterial suture near the RCA. Deployment of a drug-eluting stent restored normal flow, and the patient made a full recovery...
November 17, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27847076/successful-transcatheter-handmade-valved-graft-stent-for-branch-pulmonary-regurgitation-novel-approach-in-a-special-event
#12
Ming-Tai Lin, Jou-Kou Wang, Pei-Yuan Wu, Chun-Wei Lu, Te-I Chang, Yih-Sharng Chen
Right heart failure is not uncommon in the patients with repaired tetralogy of Fallot (rTOF). Although commercialized transcatheter stent-mounted pulmonary valves are effective treatment options for improving functional class and for normalizing right ventricular volumes in such patients, they are not available in Taiwan. To provide a handmade alternative, we report our successful transcatheter attempt of a handmade assembled left pulmonary artery valved stent graft implantation in a 61-year-old man who had a history of rTOF and severe branch pulmonary regurgitation...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27845304/partial-aortic-root-remodeling-for-root-reconstruction-in-patients-with-acute-type-a-dissection
#13
Fuhua Huang, Liangpeng Li, Wei Qin, Cunhua Su, Liming Wang, Liqiong Xiao, Xin Chen
In the present study, we reported our experience with partial aortic root remodeling for root reconstruction in patients with acute type A dissection, which involves in non-coronary sinus and/or the right coronary sinus with just one trimmed Dacron graft. Between February 2001 and May 2010, we performed partial aortic root remodeling in 40 patients, who underwent emergency surgical intervention. The dissected sinuses were excised leaving a 3-5 mm rim of the aortic wall from the attached aortic valve cusps. A short piece (4-5 cm) of collagen coated woven polyester vascular prosthesis was trimmed with one or two "tongues" to reconstruct the non-coronary sinus and/or the right coronary sinus, but without using separated patches...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27832845/predictors-of-permanent-pacemaker-implantation-after-transcatheter-aortic-valve-replacement-with-the-sapien-3
#14
Victor Mauri, Andreas Reimann, Daniel Stern, Maximilian Scherner, Elmar Kuhn, Volker Rudolph, Stephan Rosenkranz, Kaveh Eghbalzadeh, Kai Friedrichs, Thorsten Wahlers, Stephan Baldus, Navid Madershahian, Tanja K Rudolph
OBJECTIVES: The aim of this study was to identify predictors of permanent pacemaker implantation (PPMI) following transcatheter aortic valve replacement (TAVR) with a balloon-expandable transcatheter valve (Edwards SAPIEN 3). BACKGROUND: New-onset conduction disturbances requiring PPMI remain a major concern following TAVR. Predictors are not yet well defined. METHODS: The influence of angiographic implantation depth, device landing zone calcium volume, oversizing, pre- and post-dilation, and baseline conduction disturbances on PPMI rate was analyzed in 229 patients undergoing TAVR with the SAPIEN 3 device...
November 14, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27831998/hemodynamic-performance-of-a-novel-right-ventricular-assist-device-perkat%C3%A2
#15
Daniel Kretzschmar, P Christian Schulze, Markus W Ferrari
Acute right ventricular failure (RVF) is an increasingly clinical problem and a life-threatening condition. Right ventricular assist devices (RVADs) represent a reasonable treatment option for patients with refractory RVF. We here present a novel percutaneously implantable device for RV support.The PERKAT device is based on a nitinol stent cage which is covered with valve- carrying foils. A flexible outlet trunk with a pigtail tip is connected to the distal part. The device is driven by an IABP drive unit which inflates/deflates a standard IABP balloon placed within in the stent cage...
November 9, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27829472/post-market-surveillance-to-detect-adverse-events-associated-with-melody%C3%A2-valve-implantation
#16
Kevin D Hill, Bryan H Goldstein, Michael J Angtuaco, Patricia Y Chu, Gregory A Fleming
OBJECTIVE: The aim of this study was to describe previously unrecognised or under-recognised adverse events associated with Melody® valve implantation. BACKGROUND: In rare diseases and conditions, it is typically not feasible to conduct large-scale safety trials before drug or device approval. Therefore, post-market surveillance mechanisms are necessary to detect rare but potentially serious adverse events. METHODS: We reviewed the United States Food and Drug Administration's Manufacturer and User Facility Device Experience (MAUDE) database and conducted a structured literature review to evaluate adverse events associated with on- and off-label Melody® valve implantation...
November 10, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27818146/spanish-cardiac-catheterization-and-coronary-intervention-registry-25th-official-report-of-the-spanish-society-of-cardiology-working-group-on-cardiac-catheterization-and-interventional-cardiology-1990-2015
#17
Pilar Jiménez-Quevedo, Ana Serrador, Armando Pérez de Prado, Manuel Pan
INTRODUCTION AND OBJECTIVES: The Working Group on Cardiac Catheterization and Interventional Cardiology presents its annual report on the data from the registry of the activity in 2015. METHODS: All Spanish hospitals with catheterization laboratories were invited to voluntarily contribute their activity data. The information was collected online and analyzed mostly by an independent company. RESULTS: In 2015, 106 centers participated in the national register; 73 of these centers are public...
November 3, 2016: Revista Española de Cardiología
https://www.readbyqxmd.com/read/27816175/-transfemoral-tavi-procedure-in-women-minimally-invasive-technique
#18
H Benamer, B Chevalier, A Roy, M A Bouzid, C Perdrix, P Garot, T Hovasse, T Unterseeh, S Champagne, T Lefèvre
Demographic data point to a substantial proportion of women in the population of elderly patients with an increasing prevalence of aortic stenosis. Implantation of an aortic bioprosthesis via an endovascular approach known as Transcatheter aortic valve implantation (TAVI) in patients presenting with a symptomatic tight aortic stenosis (severe aortic stenosis) (AS) is an alternative therapeutic option to surgical aortic valve replacement in patients at high surgical risk or ineligible for surgery. The literature has shown that this technique seems to be particularly beneficial in female patients...
November 2, 2016: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/27800457/myocardial-infarction-secondary-to-inflammatory-myofibroblastic-tumor-obstruction-of-the-left-main-treated-with-primary-pci
#19
James Nguyen, Salil Sethi, Hinan Ahmed, Anand Prasad
INTRODUCTION: Cardiac inflammatory myofibroblastic tumor is a rare tumor that can cause potentially fatal outcomes. CASE PRESENTATION: We describe a case where the tumor originated on the mitral valve and extended through the left ventricular outflow tract and aortic valve and into the left main artery obstructing it. Due to the hemodynamic instability of the patient, we proceeded for cardiac catheterization with the intention to aspirate the mass but were forced to do percutaneous intervention to stabilize the patient and bridge him to surgery...
August 2016: Research in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27788849/outcomes-of-endovascular-repair-of-ascending-aortic-dissection-in-patients-unsuitable-for-direct-surgical-repair
#20
Zhenjiang Li, Qingsheng Lu, Rui Feng, Jian Zhou, Zhiqing Zhao, Junmin Bao, Xiang Feng, Jiaxuan Feng, Yifei Pei, Chao Song, Zaiping Jing
BACKGROUND: Stent grafting is a therapeutic option for patients who are unable to undergo urgent surgical repair of ascending aortic dissections. However, follow-up regarding outcomes is limited. OBJECTIVES: This study reports mid-term outcomes with endovascular repair for ascending aortic dissections in patients deemed high risk for open repair. METHODS: Between May 1, 2009 and January 31, 2011, 15 ascending aortic dissection patients (ages 45 to 78 years) ineligible for direct surgical repair underwent endovascular repair (1 acute dissection, 7 subacute dissections, and 7 chronic dissections) and were closely followed up for a median of 72 months (range 61 to 81 months)...
November 1, 2016: Journal of the American College of Cardiology
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