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Performing optimal transcatheter aortic valve implantation: The need for tailored use of transcatheter valves.
CONCLUSION: The choice of balloon-expandable or self-expanding transcatheter heart valve tailored to the patient's clinical and anatomical characteristics allows for maximal use of the transfemoral approach, and is associated with low 30-day rates of major complications and mortality. PMID: 31474571 [PubMed - as supplied by publisher]
Source: Archives of Cardiovascular Diseases - August 28, 2019 Category: Cardiology Authors: Fischer Q, Urena M, Bouleti C, Abtan J, Brochet E, Carrasco JL, Iung B, Vahanian A, Himbert D Tags: Arch Cardiovasc Dis Source Type: research

Age-Dependence of Flow Homeostasis in the Left Ventricle
Conclusions: In average, blood spends 1 to 3 beats inside the LV with very low shear stress rates. The apical region is the most prone to blood stasis, particularly in mid-aged adults. The washout of blood in the normal LV is age-dependent due to physiological changes in the degree of apical penetration of the filling waves. Introduction Cardioembolic stroke is a major source of mortality and disability worldwide and blood stasis one of its major determinants (Adams et al., 1986). Left ventricular (LV) function has evolved to maximize mechanical efficiency and ensure organ perfusion at a low cost of energy and fill...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

A Comparison of Three Different Bioinformatics Analyses of the 16S –23S rRNA Encoding Region for Bacterial Identification
Conclusion The higher resolution at the species level identification provided by 16S–23S rRNA encoding region NGS makes its use in routine diagnostic microbiology potentially attractive. Particularly, data analysis is one of the most important steps of a diagnostic workflow, which requires an optimal pipeline for the interpretation of the sequencing data in a short time. This study demonstrates that de novo assembly and subsequent BLASTN analysis using an in-house developed database compared to OTU clustering and mapping approaches is the most accurate and fastest approach for identification of bacterial pathogens....
Source: Frontiers in Microbiology - April 15, 2019 Category: Microbiology Source Type: research

Asymptomatic Carotid Stenosis Is Associated With Circadian and Other Variability in Embolus Detection
Conclusions: Embolism associated with asymptomatic carotid stenosis shows circadian variation with highest rates 4–6 h before midday. This corresponds with peak circadian incidence of stroke and other vascular complications. These and ASED Study results show that monitoring frequency, duration, and time of day are important in ES detection. Introduction Transcranial Doppler (TCD) detected microembolism in the ipsilateral middle cerebral artery (MCA) may help stratify the risk of stroke and other arterial disease complications in persons with advanced (≥60%) asymptomatic carotid stenosis. If so, this t...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research

Transfemoral aortic valve implantation with new-generation devices: the repositionable Lotus vs. the balloon-expandable Edwards Sapien 3 valve
Background New-generation transcatheter heart valves have been developed to reduce complications of transcatheter aortic valve implantation (TAVI). With this study we sought to compare procedural and 30-day outcomes of the new-generation repositionable Boston Scientific Lotus (Lotus) and the balloon-expandable Edwards Sapien 3 (ES3) transcatheter heart valves. Methods A total of 315 patients with severe symptomatic aortic stenosis undergoing transfemoral TAVI with Lotus or ES3 included in two large Italian registries were considered for this analysis. After propensity matching, 93 matched pairs of patients were includ...
Source: Journal of Cardiovascular Medicine - October 9, 2018 Category: Cardiology Tags: Research articles: Interventional cardiology Source Type: research

Boston Scientific puts $270m on the table for Claret Medical
Boston Scientific (NYSE:BSX) said today that it agreed to pay as much as $270 million to acquire Claret and its Sentinel device. Marlborough, Mass.-based Boston Scientific said the deal involves an ip-front cash payment of $220 million and another $50 million pegged to a reimbursement milestone. Claret’s Sentinel device is designed to trap and remove debris dislodged during transcatheter aortic valve replacements to prevent stroke and other neurological damage. After landing CE Mark approval in the European Union in 2014, Santa Rosa, Calif.-based Claret won de novo clearance from the FDA last year for the Sentinel d...
Source: Mass Device - July 20, 2018 Category: Medical Devices Authors: Brad Perriello Tags: Mergers & Acquisitions Replacement Heart Valves Wall Street Beat Boston Scientific Claret Medical Inc. Source Type: news

Real World Data Could Give Edwards Edge in TAVR
Edwards Lifesciences is continuing to strengthen its position in the transcatheter aortic valve replacement(TAVR) market by revealing real world data for the Sapien 3 valve. The Irvine, CA-based company presented positive 30-data of the device at EuroPCR. The propensity-matched analysis compared real-world data collected from the Society of Thoracic Surgeons and American College of Cardiology (STS/ACC) Transcatheter Valve Therapy (TVT) Registry with outcomes of patients enrolled in the PARTNER II studies of the Sapien 3 valve. Nearly 2,000 patients were involved and treated in more than 450 commercial centers around the U....
Source: MDDI - May 22, 2018 Category: Medical Devices Authors: Omar Ford Tags: Cardiovascular Business Source Type: news

Suprasternal Transcatheter Aortic Valve Replacement in Patients With Marginal Femoral Access
Conclusions These data demonstrate the early clinical feasibility of suprasternal transcatheter aortic valve replacement. Key advantages of this approach include direct access to the innominate artery and ascending aorta, precise sheath control, and confident arterial closure. Additional experience is warranted to confirm these favorable results.
Source: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery - January 1, 2018 Category: Cardiovascular & Thoracic Surgery Tags: Original Articles Source Type: research

Thirty-Day Outcomes in 100 Consecutive Patients Undergoing Transfemoral Aortic Valve Replacement With the Portico Valve on an All-Comer Basis.
CONCLUSIONS: Our immediate and 30-day post-TAVR results support favorable survival comparable to other studies, and significant clinical improvement with the Portico valve in non-selected patients in a real-world setting, with short-term complications being uncommon. PMID: 29207365 [PubMed - in process]
Source: The Journal of Invasive Cardiology - December 6, 2017 Category: Cardiology Tags: J Invasive Cardiol Source Type: research

Implantation and 30-Day Follow-Up on All 4 Valve Sizes Within the Portico Transcatheter Aortic Bioprosthetic Family
Conclusions Across all valve sizes, use of the repositionable Portico transcatheter aortic valve replacement system resulted in safe and effective treatment of aortic stenosis in high-risk patients.
Source: Journal of the American College of Cardiology: Cardiovascular Interventions - August 7, 2017 Category: Cardiology Authors: Möllmann, H., Linke, A., Holzhey, D. M., Walther, T., Manoharan, G., Schäfer, U., Heinz-Kuck, K., Van Boven, A. J., Redwood, S. R., Kovac, J., Butter, C., Sondergaard, L., Lauten, A., Schymik, G., Worthley, S. G. Tags: Structural: Aortic Valve Focus Source Type: research

SOURCE 3 Registry: Design and 30-Day Results of the European Post Approval Registry of the Latest Generation of the Sapien 3TM Transcatheter Heart Valve.
CONCLUSIONS: -Results from the SOURCE 3 Registry demonstrate contemporary European trends and good outcomes of TAVI in daily practice when using this third generation TAVI device. PMID: 28104716 [PubMed - as supplied by publisher]
Source: Circulation - January 18, 2017 Category: Cardiology Authors: Wendler O, Schymik G, Treede H, Baumgartner H, Dumonteil N, Ihlberg L, Neumann FJ, Tarantini G, Zamorano JL, Vahanian A Tags: Circulation Source Type: research

The JUPITER registry: 1-year results of transapical aortic valve implantation using a second-generation transcatheter heart valve in patients with aortic stenosis ADULT CARDIAC
CONCLUSIONS In a high-risk cohort of patients undergoing TA-TAVR for AS, the use of the JenaValve THV is safe and effective. In patients at higher risk for coronary ostia obstruction, annular rupture or with limited aortic valve calcification, the JenaValve might be preferable for implantation due to its clipping-mechanism engaging native aortic valve cusps for fixation with reduced radial forces of the self-expanding stent.
Source: European Journal of Cardio-Thoracic Surgery - November 3, 2016 Category: Cardiovascular & Thoracic Surgery Authors: Silaschi, M., Treede, H., Rastan, A. J., Baumbach, H., Beyersdorf, F., Kappert, U., Eichinger, W., Rüter, F., de Kroon, T. L., Lange, R., Ensminger, S., Wendler, O. Tags: History, Basic research vascular ADULT CARDIAC Source Type: research

Improving outcomes: case-matched comparison of novel second-generation versus first-generation self-expandable transcatheter heart valves ADULT CARDIAC
DISCUSSION TF-TAVI was feasible and safe using this new type of nitinol-based THV. Superiority to the current generation of self-expanding THVs was achieved regarding post-interventional pressure gradients and EOA, severity of residual PVL and rate of PM implantation. Results set a promising quality standard for TF-TAVI with a self-expanding THV, but will have to be confirmed in a larger patient cohorts for further clinical evaluation.
Source: European Journal of Cardio-Thoracic Surgery - July 19, 2016 Category: Cardiovascular & Thoracic Surgery Authors: Schaefer, A., Treede, H., Schoen, G., Deuschl, F., Schofer, N., Schneeberger, Y., Blankenberg, S., Reichenspurner, H., Schaefer, U., Conradi, L. Tags: History, Transplantation - heart, Basic research vascular ADULT CARDIAC Source Type: research

Low Incidence of Paravalvular Leakage With the Balloon-Expandable Sapien 3 Transcatheter Heart Valve.
CONCLUSIONS: The present study shows excellent clinical and hemodynamic outcomes of high-risk transapical valve replacement patients treated with the new S3 THV. The S3 THV shows a low incidence of postoperative aortic regurgitation, with 98% presenting with less than mild aortic regurgitation. PMID: 26117587 [PubMed - as supplied by publisher]
Source: The Annals of Thoracic Surgery - June 24, 2015 Category: Cardiovascular & Thoracic Surgery Authors: Wendt D, Al-Rashid F, Kahlert P, Eißmann M, El-Chilali K, Janosi A, Pasa S, Tsagakis K, Liakopoulos O, Erbel R, Jakob H, Thielmann M Tags: Ann Thorac Surg Source Type: research

Low Incidence of Paravalvular Leakage With the Balloon-Expandable Sapien 3 Transcatheter Heart Valve
Conclusions The present study shows excellent clinical and hemodynamic outcomes of high-risk transapical valve replacement patients treated with the new S3 THV. The S3 THV shows a low incidence of postoperative aortic regurgitation, with 98% presenting with less than mild aortic regurgitation.
Source: The Annals of Thoracic Surgery - June 24, 2015 Category: Cardiovascular & Thoracic Surgery Source Type: research

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