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https://www.readbyqxmd.com/read/28329312/first-experience-with-transfemoral-transcatheter-aortic-valve-implantation-without-prior-balloon-pre-dilatation-using-a-latest-generation-repositionable-and-retrievable-transcatheter-heart-valve%C3%A2
#1
Andreas Schaefer, Eva Harmel, Moritz Seiffert, Daniel Reichart, Florian Deuschl, Niklas Schofer, Yvonne Schneeberger, Stefan Blankenberg, Hermann Reichenspurner, Ulrich Schaefer, Lenard Conradi
OBJECTIVES: : The aim of this study was to prove technical feasibility and document haemodynamic and clinical outcomes of transcatheter aortic valve implantation (TAVI) with the latest generation repositionable and retrievable Lotus™ transcatheter heart valve (THV) without prior balloon-aortic valvuloplasty (BAV). It has been demonstrated for self-expandable and balloon-expandable THV that implantation without prior BAV is not only feasible and safe but also results in lower fluoroscopy times and amounts of contrast agent while yielding non-inferior haemodynamic and clinical outcome...
February 6, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28321002/five-year-outcomes-of-the-first-pivotal-clinical-trial-of-balloon-expandable-transcatheter-aortic-valve-replacement-in-japan-prevail-japan
#2
Yoshiki Sawa, Morimasa Takayama, Tsuyoshi Goto, Shuichiro Takanashi, Tatsuhiko Komiya, Tetsuya Tobaru, Koichi Maeda, Toru Kuratani, Yasushi Sakata
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has been an alternative less invasive therapy for high-surgical risk/inoperable patients with aortic valve stenosis (AS) in Japan. We report 5-year outcomes of the first pivotal clinical trial of TAVR in Japan (PREVAIL JAPAN).Methods and Results:A total of 64 patients with AS who were considered unsuitable candidates for surgery were enrolled at 3 centers in Japan (mean age: 84.3±6.1 years, female: 65.6%, STS score: 9.0±4...
March 17, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28319480/right-axillary-artery-cannulation-for-endovascular-repair-of-an-acute-type-a-aortic-dissection
#3
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/28317785/the-hidden-experiment-percutaneous-vs-surgical-cut-down-for-transfemoral-transcatheter-aortic-valve-implantation
#4
Nicolo Piazza, Stephan Windecker
No abstract text is available yet for this article.
March 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28296003/a-multicenter-randomized-trial-comparing-the-effectiveness-and-safety-of-a-novel-vascular-closure-device-to-manual-compression-in-anticoagulated-patients-undergoing-percutaneous-transfemoral-procedures-the-celt-acd-trial
#5
Shing Chiu Wong, Michael Laule, Zoltan Turi, Wasiem Sanad, James Crowley, Hubertus Degen, Kathleen Bennett, Jim E Coleman, Geoffrey Bergman
OBJECTIVES: This study compared the performance of Celt ACD(®) , a novel stainless steel based vascular closure device versus manual compression (MC) for femoral arteriotomy site hemostasis in patients undergoing percutaneous coronary procedures. BACKGROUND: Optimal access site management after percutaneous transfemoral procedures remains controversial. METHODS: Patients enrolled in this multicenter, randomized open label trial underwent 6-F diagnostic or interventional procedures and were assigned 2:1 to Celt ACD(®) versus MC...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28295972/first-report-of-a-simultaneous-transcatheter-mitral-valve-in-valve-and-aortic-valve-replacement-in-a-left-ventricular-assist-device-patient
#6
Christopher Meduri, James Kauten, Mani Vannan, Vivek Rajagopal
Transcatheter aortic valve replacement is standard of care for patients with severe aortic stenosis at high risk for surgical aortic valve replacement. Although not intended for treatment of primary aortic insufficiency, several transcatheter aortic valve prostheses have been used to treat patients with severe aortic insufficiency (AI), including patients with left ventricular assist devices (LVAD), in whom significant AI is not uncommon. Similarly, transcatheter valve replacements have been used for valve-in-valve treatment, in the pulmonary, aortic, and mitral positions, either via a retrograde femoral approach or antegrade transseptal approach (mitral valve-in-valve)...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28293984/hip-prosthesis-in-sitting-posture-for-bilateral-transfemoral-amputee-after-burn-injury-a-case-report
#7
Yukiyo Shimizu, Hirotaka Mutsuzaki, Takayuki Maezawa, Yuji Idei, Kazuya Takao, Ryoko Takeuchi, Shinzo Onishi, Yasushi Hada, Masashi Yamazaki, Yasuyoshi Wadano
BACKGROUND: To overcome the challenges of rehabilitation of bilateral transfemoral amputees, we developed a novel "hip prosthesis in the sitting posture." Case Description and Methods: A 64-year-old male bilateral transfemoral amputee was transferred for rehabilitation 4 months following a burn injury. His wounds remained unhealed for 20 months; thus, he was unable to participate in standing training with the standard prosthetic sockets. Hip prosthesis in the sitting posture has very little friction between the sockets and residual limbs, which facilitated our patient to begin standing and walking exercises...
December 1, 2016: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28290812/-transaortic-implantation-of-aortic-valve-bioprosthesis-in-high-risk-patient-with-simultaneous-off-pump-coronary-artery-bypass-grafting
#8
R S Akchurin, T J Imaev, A E Komlev, P M Lepilin, A S Kolegaev, M E Nikonova
Transaortic approach represents an alternative variant of transcatheter aortic valve implantation (TAVI) which combines benefits of antegrade transapical approach and high safety profile characteristic of transfemoral approach. This method has substantial advantages over subclavian and transapical approaches in cases of pronounced myocardial hypertrophy, left ventricular dysfunction, thinning of left ventricular wall. We describe here a hybrid intervention with simultaneous coronary artery bypass grafting and TAVI in a patient from high surgical risk group with multivessel coronary artery involvement and critical aortic stenosis...
December 2016: Kardiologiia
https://www.readbyqxmd.com/read/28283746/predictors-for-permanent-pacemaker-implantation-in-patients-undergoing-transfemoral-aortic-valve-implantation-with-the-edwards-sapien-3-valve
#9
Birgid Gonska, Julia Seeger, Mirjam Keßler, Alexander von Keil, Wolfgang Rottbauer, Jochen Wöhrle
BACKGROUND: Predictors for the need of permanent pacemaker implantation (PPMI) in the context of transcatheter aortic valve implantation (TAVI) are not well defined yet. We evaluated the impact of conduction disturbances, calcium volume of the device landing zone, oversizing and implantation depth on PPMI after TAVI with the balloon-expandable Edwards Sapien 3 (ES3). METHODS AND RESULTS: 335 consecutive patients undergoing transfemoral TAVI with the ES3 for the treatment of symptomatic severe aortic stenosis were included (clinicaltrials NCT02162069)...
March 10, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28283745/in-hospital-mortality-in-propensity-score-matched-low-risk-patients-undergoing-routine-isolated-surgical-or-transfemoral-transcatheter-aortic-valve-replacement-in-2014-in-germany
#10
Christian Frerker, Kurt Bestehorn, Michael Schlüter, Maike Bestehorn, Christian W Hamm, Helge Möllmann, Hugo A Katus, Karl-Heinz Kuck
AIMS: Recent randomized trials have documented the superiority of TAVR-particularly via transfemoral access-over SAVR in patients with severe aortic stenosis considered to have a high or intermediate operative risk of death. We sought to assess in-hospital outcomes of patients with severe aortic stenosis and a low risk of operative mortality undergoing routine surgical aortic valve replacement (SAVR) or transcatheter aortic valve replacement (TAVR). METHODS AND RESULTS: We performed a propensity-score matched comparison of all patients undergoing first-time treatment by SAVR or transfemoral TAVR (TF-TAVR) in 2014 in Germany who had a logistic EuroSCORE (logES) ≤ 10%, considered to reflect low surgical risk...
March 10, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28280845/-function-of-prosthesis-components-in-lower-limb-amputees-with-bone-anchored-percutaneous-implants-biomechanical-aspects
#11
S Blumentritt
BACKGROUND: Bone anchorage of an artificial limb has been proven to be an alternative intervention for amputees when prosthesis use is seriously reduced because of stump problems. Little is known about how prosthesis components interact with bone and joints and which potential the optimum use provides with respect to quality of treatment of leg amputees. OBJECTIVE: Does osseointegration influence the motor activity of residual limbs differently compared with socket prostheses? How should prosthesis components be aligned? What type of prosthetic knee joints should be preferred in transfemoral amputees? MATERIAL AND METHODS: Transfer of biomechanical knowledge of socket prosthetics to bone-anchored prostheses...
March 9, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28277896/resource-utilization-and-procedure-related-costs-associated-with-transfemoral-transcatheter-aortic-valve-replacement
#12
Holger Klein, Jana Boleckova
AIMS: Transcatheter aortic valve implantation (TAVI) is an alternative to surgical valve replacement for patients with aortic stenosis (AS). This study assessed the impact of changing from a self-expandable (SE) valve to a balloon-expandable (BE) valve on healthcare resource use and procedural costs in a population of inoperable AS patients. METHODS: In this retrospective single center study, data for 195 patients who received either an SE or a BE valve between 2010 and 2014 were collected...
March 9, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28277225/arteriovenous-malformation-of-the-external-ear-a-clinical-assessment-with-a-scoping-review-of-the-literature
#13
Shin Hye Kim, Seung Hoon Han, Yoonjae Song, Chang Sik Park, Jae-Jin Song
INTRODUCTION: Auricular Arteriovenous Malformation (AVM) of the external ear is a rarely encountered disease; in particular, AVM arising from the auricle, with spontaneous bleeding, has seldom been reported. OBJECTIVE: In the current study, we report an unusual case of late-onset auricular AVM originating from the posterior auricular artery that was confirmed by computed tomographic angiography. The case was successfully managed by pre-surgical intravascular embolization followed by total lesion excision...
October 17, 2016: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28274581/learning-curves-among-all-patients-undergoing-transcatheter-aortic-valve-implantation-in-germany-a-retrospective-observational-study
#14
Klaus Kaier, Holger Reinecke, Claudia Schmoor, Lutz Frankenstein, Werner Vach, Philip Hehn, Andreas Zirlik, Christoph Bode, Manfred Zehender, Jochen Reinöhl
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is a rapidly evolving technique for therapy of aortic stenosis. Previous studies report learning curves with respect to in-hospital mortality and clinical complications. We aim to determine whether observed improvements of in-hospital outcomes after TAVI are the result of improvements in procedures or due to a change in the patient population, and whether improvements differ between the transfemoral (TF) and the transapical (TA) approach...
March 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28274520/the-carotid-artery-as-a-preferred-alternative-access-route-for-transcatheter-aortic-valve-replacement
#15
Eric B Kirker, Robert W Hodson, Kateri J Spinelli, Ethan C Korngold
BACKGROUND: In high-risk patients with severe aortic stenosis, transfemoral (TF) access for transcatheter aortic valve replacement (TAVR) is the preferred access route but is not always feasible. Compared with other alternative access routes, transcarotid (TC) access is often overlooked by many valvular heart teams. METHODS: We report our single-center experience of all patients undergoing TC (n = 25), transapical (TA) (n = 12), or TF (n = 100; limited to most recent cases) TAVR over a 1...
March 5, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28269410/delaying-ambulation-mode-transitions-in-a-powered-knee-ankle-prosthesis
#16
Ann M Simon, John A Spanias, Kimberly A Ingraham, Levi J Hargrove
Powered knee and ankle prostheses have the potential to improve the mobility of individuals with a lower limb amputation. As the number of different ambulation modes the prosthesis can be configured for increases, so too does the challenge of how to best transition the prosthesis between these modes. Pattern recognition systems have been suggested as a means to provide seamless and natural transitions, although error rates need to be reduced for these systems to be clinical viable. Delaying mode transitions by a small window may be one way to reduce error rates and improve reliability...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269408/adaptive-control-of-powered-transfemoral-prostheses-based-on-adaptive-dynamic-programming
#17
Yue Wen, Ming Liu, Jennie Si, He Huang
In this study, we developed and tested a novel adaptive controller for powered transfemoral prostheses. Adaptive dynamic programming (ADP) was implemented within the prosthesis control to complement the existing finite state impedance control (FS-IC) in a prototypic active-transfemoral prosthesis (ATP). The ADP controller interacts with the human user-prosthesis system, observes the prosthesis user's dynamic states during walking, and learns to personalize user performance properties via online adaptation to meet the individual user's objectives...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269407/real-time-gait-event-detection-for-lower-limb-amputees-using-a-single-wearable-sensor
#18
H F Maqbool, M A B Husman, M I Awad, A Abouhossein, P Mehryar, N Iqbal, A A Dehghani-Sanij
This paper presents a rule-based real-time gait event/phase detection system (R-GEDS) using a shank mounted inertial measurement unit (IMU) for lower limb amputees during the level ground walking. Development of the algorithm is based on the shank angular velocity in the sagittal plane and linear acceleration signal in the shank longitudinal direction. System performance was evaluated with four control subjects (CS) and one transfemoral amputee (TFA) and the results were validated with four FlexiForce footswitches (FSW)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269309/a-control-method-for-transfemoral-prosthetic-knees-in-level-walking-and-stair-ascending-based-on-thigh-angular-motion
#19
K Inoue, A Pripunnochai, T Wada
Regaining the locomotive ability is necessary to maintain the activities of daily living in lower extremity amputees. Recently, the stability of the gait and multifunctionality of transfemoral prosthetic knees have drastically improved with the use of microprocessor-controlled knees, such as Genium ® (Otto Bock, GmbH). However, these knees, which also include products from other companies, are very expensive. Therefore, the purpose of the present study was to develop a control method for transfemoral prosthetic knees in order to perform level walking and stairs ascending safely, with fewer sensors or simpler procedures...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269307/tolerance-of-neural-decoding-errors-for-powered-artificial-legs-a-pilot-study
#20
Fan Zhang, Ming Liu, He Huang
Neural-machine interface (NMI) decoding errors challenge the clinical value of neural control of powered artificial legs, because these errors can dangerously disturb the user's walking balance, cause stumbles or falls, and thus threaten the user's confidence and safety in prosthesis use. Although extensive research efforts have been made to minimize the NMI decoding error rate, none of the current approaches can completely eliminate the errors in NMI. This study aimed at improving the robustness of prosthesis control system against neural decoding errors by introducing a fault-tolerant control (FTC) strategy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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