From June 1985 to December 1988, 175 consecutive patients underwent 204 carotid endarterectomies with routine use of expanded PTFE patch angioplasty. Two patients (1%) suffered strokes and there were no transient ischemic attacks or deaths in the immediate postoperative period. All carotid endarterectomies were performed with an intraluminal shunt without cerebral monitoring. The indications for carotid endarterectomy were symptoms (83% of patients) or no symptoms of internal carotid artery atherosclerotic stenoses (12.7% of patients). Neurological assessment, Doppler and real-time ultrasound were performed at six months, twelve months and then annually. Over the follow-up period there were one asymptomatic occlusion and two high grade symptomatic stenoses which required reoperation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF02009445 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of Fluorophilic- and Hydrophobic-Modified Polyglycerol-Based Coatings on the Wettability of Low Surface Energy Polymers.
Langmuir
January 2025
Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany.
Catechol-derived polymers form stable coatings on a wide range of materials including challenging to coat low surface energy polymers. Whether modification of the coating polymer with fluorophilic or hydrophobic groups is a successful approach to further favor the coating of hydrophobic or fluorophilic surfaces with catechol-based polymers remains ambiguous. Herein, we report the effect of a series of catechol-derived polyglycerol (PG)-based coatings and monolayer coatings on the wettability of polytetrafluoroethylene (PTFE), polystyrene, and poly(methyl methacrylate) surfaces.
View Article and Find Full Text PDFDesign of Litchi-Like Al/PTFE with Superior Reactivity and Application in Solid Propellants.
Small
January 2025
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, 621999, China.
The combustion efficiency and reactivity of aluminum (Al) particles, as a crucial component in solid propellants, are constrained by the inert oxide layer aluminum oxide (AlO). Polytetrafluoroethylene (PTFE) can remove the oxide layer, however, carbon deposition generated during the reaction process still limits the reaction efficiency of Al/PTFE fuel. Here, a litchi-like Al/PTFE fuel with the nano-PTFE islands distributed on the Al particles surface is successfully designed, based on localized activation and synergistic reaction strategies, to solve the AlO layer and carbon deposition.
View Article and Find Full Text PDFPosterior Hepatectomy and Inferior Vena Cava Graft Reconstruction for En Bloc Resection of a Hepatocellular Carcinoma: A Tribute to Couinaud's Liver Anatomy Description.
Ann Surg Oncol
January 2025
Department of Hepatobiliary and Digestive Surgery, Pontchaillou University Hospital, Rennes, France.
Background: Hepatocellular carcinoma (HCC) associated with major vasculature tumor extension is considered an advanced stage of disease to which palliative radiotherapy or chemotherapy is proposed. Surgical resection associated with chemotherapy or chemoembolization could be an opportunity to improve overall survival and recurrence-free survival in selected cases in a high-volume hepatobiliary center. Moreover, it has been 25 years since Couinaud described the entity of a posterior liver located behind an axial plane crossing the portal bifurcation.
View Article and Find Full Text PDFThe Impact of High-Speed Crushing Process of Fibrous Polytetrafluoroethylene on Pyrolyzed Carbon Black/Natural Rubber Composites.
Polymers (Basel)
January 2025
School of Mechatronics Engineering, Qingdao University of Science and Technology, Qingdao 266061, China.
This study employed a high-speed rotating crushing process to modify pyrolyzed carbon black (CBp) using self-lubricating and low-friction polytetrafluoroethylene (PTFE). The effects of PTFE content on the dispersion, mechanical properties, wear resistance, and thermal stability of modified PTFE-CBp/natural rubber (NR) composites were investigated. The rotating crushing process from the high-speed grinder altered the physical structure of PTFE, forming tiny fibrous structures that interspersed among the CBp particles.
View Article and Find Full Text PDFDirect Ink Writing 3D Printing Polytetrafluoroethylene/Polydimethylsiloxane Membrane with Anisotropic Surface Wettability and Its Application in Oil-Water Separation.
Polymers (Basel)
January 2025
State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Biological surfaces with physical discontinuity or chemical heterogeneity possess special wettability in the form of anisotropic wetting behavior. However, there are several challenges in designing and manufacturing samples with anisotropic wettability. This study investigates the fabrication of PTFE/PDMS grid membranes using Direct Ink Writing (DIW) 3D printing for oil-water separation applications.
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!