Results 51 to 60 of about 1,497,170 (197)

Cinefluoroscopic identification of Björk-Shiley prosthetic heart valves

open access: yes, 1993
Numerous mechanical prostheses are currently utilized for heart valve replacement. Fluoroscopy is a useful technique to identify prosthetic valves, to evaluate their function and to follow-up the patients' condition.
P. Montorsi   +2 more
core   +1 more source

Transendocardial injection of expanded autologous CD34+ cells after myocardial infarction: Design of the EXCELLENT trial

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1455-1463, April 2025.
Abstract Aims The extent of irreversible cardiomyocyte necrosis after acute myocardial infarction (AMI) is a major determinant of residual left ventricular (LV) function and clinical outcome. Cell therapy based on CD34+ cells has emerged as an option to help repair the myocardium and to improve outcomes.
Jerome Roncalli   +17 more
wiley   +1 more source

An Efficient Immersed Boundary Method for Solving the Unsteady Flow through Actual Geometries of Reed Valves [PDF]

open access: yes, 2012
In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber.
Barbi, Franco   +2 more
core   +1 more source

The pathology of fresh and cryopreserved homograft heart valves: An analysis of forty explanted homograft valves [PDF]

open access: yes, 2002
Objective: Tissue degeneration reduces the durability of aortic and pulmonary homograft heart valves. Homograft valves can evoke cellular and humoral immune responses that might be detrimental to the valve tissue.
Koolbergen, David R.   +6 more
core   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

open access: yesFlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu   +4 more
wiley   +1 more source

Reoperações valvares: experiência do InCór-FMUSP Valvar reoperation

open access: yesBrazilian Journal of Cardiovascular Surgery, 1991
Neste trabalho comparamos os resultados da mortalidade nas reoperações valvares, a fim de estabelecer a gravidade das reoperações conservadoras e das retrocas, analisando a influência do número de procedimentos nos resultados.
Pablo M. A Pomerantzeff   +8 more
doaj  

Guideline Concordance of ChatGPT‐Generated Responses on Antibiotic Prophylaxis in Endodontics

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Antibiotic prophylaxis decision‐making in endodontics represents a core competency in dental education, requiring the integration of systemic risk assessment, guideline interpretation, and antimicrobial stewardship principles. Although artificial intelligence (AI) tools such as ChatGPT are increasingly accessed by students and clinicians for ...
Flavia Moura Medina Diniz   +5 more
wiley   +1 more source

Suporte (holder) ADL para cirurgia profética valvar cardíaca: the ADL Holder Holder for valve replacement surgery

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
Apresentamos um instrumento cirúrgico inédito, o Suporte ADL, para cirurgia de substituição valvar cardíaca em qualquer das posições: aórtica, mitral ou tricúspide, por próteses biológicas ou mecânicas.
Arnaldo Duarte Lourenço
doaj  

Natural biomaterials in the management of the aortic valve pathology. Biomedical and clinical aspects: A review

open access: yesBiomolecules & Biomedicine
Heart valve diseases are a prevalent cardiovascular pathology worldwide, affecting nearly 2.5% of the population. Degenerative aortic stenosis is the most common form of heart valve disease.
Igor Mokryk   +5 more
doaj   +1 more source

Histological Analysis of Cryopreserved Venous Allografts Used for Liver Transplantation and Hepato‐Biliary‐Pancreatic Surgery

open access: yesJournal of Hepato-Biliary-Pancreatic Sciences, EarlyView.
ABSTRACT Background Cryopreserved venous allografts, which we pioneered in 1999 for use in living donor liver transplantation and hepato‐biliary‐pancreatic surgery, are widely used and are believed to preserve vascular architecture with minimal anticoagulation or immunosuppression requirements and patency comparable to autologous grafts.
Yusuke Seki   +10 more
wiley   +1 more source

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