Results 31 to 40 of about 44,613 (262)

Comparison of a novel mechanical valve versus stented bioprosthetic valves for isolated mitral valve replacement in patients older than 65 yearsCentral MessagePerspective

JTCVS Open
Objective: To compare early and long-term clinical outcomes of bioprosthetic versus mechanical (On-X) mitral valve replacement (MVR) in patients aged 65 years and older.
Antonio Piperata, MD, PhD, Carlo Mariani, MD, PhD, Giacomo Murana, MD, PhD, Elio Fabbri, PhD, Paola Rucci, PhD, Maria Francesca Scuppa, MD, Filippo Londi, MD, Edoardo Bianco, MD, Benedetta Guerrini, MD, Ivan Tammaro, MD, Ludovica Fabiani, MD, Margherita Careddu, MD, Marta Bellomare, MD, Silvia Snaidero, MD, Riccardo Nania, MD, Sabrina Castagnini, MD, Marta Di Carlo, MD, Valentina Orioli, MD, Gianluca Folesani, MD, Davide Pacini, MD, PhD   +19 more
doaj   +1 more source

Leaflet migration in an aortic bileaflet mechanical prosthesis [PDF]

European Heart Journal, 2015
A 41-year-old man was referred to the emergency department for transient atypical chest pain. Six years before presentation, he underwent concomitant aortic and mitral mechanical valve replacement for a bicuspid aortic valve regurgitation and a regurgitating mitral valve prolapse. A significant paravalvular leak of the 21 mm …
Guinand, Alexandre, Cikirikcioglu, Mustafa, Mugnai, Damiano, Rigamonti, Fabio   +3 more
openaire   +4 more sources

Selection of Prosthesis in Aortic Valve Surgery: Short Review and Trend in our Practice in 10 Years

Albanian Journal of Trauma and Emergency Surgery
Introduction: In our country, the predominant condition treated in aortic valve surgery in its early stages was aortic valve disease of rheumatic origin, primarily in patients under the age of 60.
Selman Dumani, Ermal Likaj, Laureta Dibra, Devis Pellumbi, Adelina Musliu, Fjoralba Qejvani, Altin Veshti   +6 more
doaj   +1 more source

Bioprostheses and Mechanical Prostheses for Aortic Valve Replacement in Patients Aged 50 to 65 Years Offer Similar Long-Term Survival Rates

Journal of Cardiovascular Development and Disease
Background: Aortic valve replacement (AVR) is the definitive therapy for patients with severe aortic valve stenosis (AoS). The aim of this work is to compare the effect of a mechanical prosthesis (MP) and a bioprosthesis (BP) on the survival of patients ...
Tomáš Toporcer, Štefan Lukačín, Andrea Kraus, Marián Homola, Anton Bereš, Michal Trebišovský, Denis Radótzy, Vilém Rohn, Adrián Kolesár   +8 more
doaj   +1 more source

Completely detached mechanical aortic valve prosthesis stuck to the aortic arch in a patient with Behçet’s disease

Surgical Case Reports, 2022
Background Although detachment of the implanted valve prosthesis was a well-known complication in patients with Behçet’s disease, complete detachment of an aortic bileaflet valve prosthesis has never been reported.
Haruhiro Nagase, Takaya Hoashi, Ayumu Masuoka, Kentaro Hotoda, Koichi Toda, Akihiro Yoshitake, Takaaki Suzuki   +6 more
doaj   +1 more source

Fulminant thrombosis of mechanical mitral valve prosthesis [PDF]

Heart, 2001
In patients with prosthetic heart valves non-cardiac surgery may require temporary discontinuation of oral anticoagulation. Although the risk of valve related thromboembolic complications may generally be only slightly increased during the short perioperative period, in the presence of certain risk factors, replacement of oral anticoagulation with ...
M, Zielinska, N F, Haegele, C, Firschke
openaire   +2 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Mechanical valve prosthesis in pregnant patients [PDF]

Journal of Cardiothoracic and Vascular Anesthesia, 2020
Introduction Pregnancy-induced hypercoagulable states present an anticoagulation management challenge in patients with mechanical prosthetic valves (PHV). In pregnant patients a thrombosed mechanical PHV presents a high risk of morbidity and mortality for both mother and fetus.
O. Rozental, R. Thalappillil, C. Tam
openaire   +1 more source