An attempt is made to analyse the factors which are expected to influence clinical results following implantation of a stentless porcine bioprosthesis. Long experience with implantation of allograft aortic valves provides a meaningful basis for comparison with a glutaraldehyde-fixed device. Morphological differences between the two valves involve the aortic wall and muscle shelf, and differences in valve preparation include the strength and stiffness of the aorta and the extensibility of the valve leaflets. As a result of these differences, sizing of the porcine valve is expected to be more critical than the allograft valve and the porcine valve is also expected to be more obstructive. Methods for reducing the obstructive element include the use of a composite aortic valve, a porcine pulmonary valve, or a valve in which the aorta is glutaraldehyde-fixed under pressure while the leaflets are pressure-free. The techniques available for implantation, namely freehand insertion, total root replacement and mini-root replacement, are examined.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Use of artificial intelligence to predict outcomes in mild aortic valve stenosis.
Eur Heart J Digit Health
January 2025
Department of Cardiovascular Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
Aims: Aortic stenosis (AS) is a common and progressive disease, which, if left untreated, results in increased morbidity and mortality. Monitoring and follow-up care can be challenging due to significant variability in disease progression. This study aimed to develop machine learning models to predict the risks of disease progression and mortality in patients with mild AS.
View Article and Find Full Text PDFEarly discharge programme after transcatheter aortic valve implantation based on close follow-up supported by telemonitoring using artificial intelligence: the TeleTAVI study.
Eur Heart J Digit Health
January 2025
Cardiology Department, Dr Balmis General University Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), C/Maestro Alonso s/n, Alicante 03010, Spain.
Aims: Evidence regarding the safety of early discharge following transcatheter aortic valve implantation (TAVI) is limited. The aim of this study was to evaluate the safety of very early (<24) and early discharge (24-48 h) as compared to standard discharge (>48 h), supported by the implementation of a voice-based virtual assistant using artificial intelligence (AI) and natural language processing.
Methods And Results: Single-arm prospective observational study that included consecutive patients who underwent TAVI in a tertiary hospital in 2023 and were discharged under an AI follow-up programme.
Prosthetic Valve Endocarditis - A Case Report and Literature Analysis.
Hosp Pharm
January 2025
Division of General Internal Medicine, Department of Medicine, Center for Research in Healthcare, University of Pittsburgh, Pittsburgh PA, USA.
We describe a case of a 67-year-old man with bioprosthetic aortic valve endocarditis secondary to , a rare Gram-negative plant pathogen. The initial source was assumed to be due to soil exposure. The patient was successfully managed with ceftriaxone following aortic valve replacement.
View Article and Find Full Text PDFChondrocutaneous Custom-made Graft for Upper Lateral and Alar Cartilage Nose Reconstruction: The T Graft.
Arch Plast Surg
January 2025
Department of Experimental and Clinical Medicine, Clinic of Plastic and Reconstructive Surgery, Marche Polytechnic University Medical School, Ancona, Italy.
Upper lateral cartilage and alar cartilage nose reconstruction secondary to failed aesthetic procedure or tumor excision, surely represents a reconstructive challenge for plastic surgeons, because of the support needed and for the function of the internal nasal valve (INV). Several scientific publications deal with internal nasal reconstructive techniques, including simple homologous or heterologous tissue grafts. We describe a new hybrid chondrocutaneous graft used for reconstruction of the upper lateral cartilage and a portion of the alar cartilage (cephalic part), excised with the adherent nasal mucosa (in correspondence with INV), included in the tumor mass.
View Article and Find Full Text PDFBalloon-assisted percutaneous thrombin injection in a subclavian artery pseudoaneurysm: A case report.
Radiol Case Rep
March 2025
Department of Medical Imaging, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia.
Subclavian artery pseudoaneurysm (SAP) is a rare but lethal diagnosis, and an important condition that should be detected and managed imperatively. SAP has been seldom described in the literature, explaining the lack of concrete management guidelines. Herein we present a case study of a 63-year-old man with SAP post a transcatheter aortic valve implantation (TAVI) done 8 days prior to current presentation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!