Background: Tumors of various sizes and locations can create a treatment dilemma in achieving adequate surgical margins when sufficient free tissue is not available for closure. Extravascular local adjunctive chemotherapy has been investigated clinically to aid in achieving local tumor control in animals with naturally occurring neoplastic disease. Local chemotherapy can be an alternative primary or a local adjunctive treatment.
Objectives And Procedures: This is a summary of relevant findings of and studies on local chemotherapeutic delivery through carrier media, together with a summary of outcomes of clinical use of local delivery of chemotherapeutic agents in small animals and . Literature from 1990 to 2022 was evaluated searches of PubMed, Google Scholar, and CAB Abstracts databases for studies of local extravascular delivery of chemotherapeutic agents and chemotherapeutic-impregnated delivery systems in research and clinical settings in veterinary medicine.
Results: Chemotherapeutic-impregnated calcium sulfate hemihydrate beads with carboplatin are currently favored for extravascular delivery and are associated with minimal wound complications. The ideal delivery system may vary depending on the chemotherapeutic agent used, commercial availability, targeted tumor type, and location.
Conclusion And Clinical Relevance: Future investigations might focus on the required dose, the rate of sustained release, and enhancing nodal uptake.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10506355 | PMC |
Adv Healthc Mater
December 2024
Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, China.
Endovascular aneurysm repair (EVAR) plays a crucial role in the treatment of abdominal aortic aneurysm (AAA) in the clinic, but the aneurysm remains in the patient's body after surgery, continuing to pose a risk of progression. Cycloastragenol (CAG) is proven to be an effective anti-AAA drug, and its vascular protective effects can be further improved when the hydrophobic CAG is encapsulated into nano-sized formulations to enhance its bioavailability. In this context, this study developed an extravascular patch hydrogel loaded with CAG nanostructured lipid carriers and a hydrophilic drug of doxycycline hydrochloride (DOX).
View Article and Find Full Text PDFWiley Interdiscip Rev Nanomed Nanobiotechnol
November 2024
Department of Biomedical Engineering, Case Western Reserve University (CWRU), Cleveland, Ohio, USA.
Contrast-enhanced ultrasound is currently used worldwide with clinical indications in cardiology and radiology, and it continues to evolve and develop through innovative technological advancements. Clinically utilized contrast agents for ultrasound consist of hydrophobic gas microbubbles stabilized with a biocompatible shell. These agents are used commonly in echocardiography, with emerging applications in cancer diagnosis and therapy.
View Article and Find Full Text PDFJ Control Release
December 2024
Biomedical Engineering, Dept. of Cardiology, Cardiovascular Institute, Erasmus MC, Rotterdam, the Netherlands. Electronic address:
Locally opening up the endothelial barrier in a safe and controlled way is beneficial for drug delivery into the extravascular tissue. Although ultrasound-induced microbubble oscillations can affect the endothelial barrier integrity, the mechanism remains unknown. Here we uncover a new role for F-actin in microbubble-mediated endothelial gap formation.
View Article and Find Full Text PDFNew Phytol
December 2024
Department of Physics, Technical University of Denmark, 2800, Kongens Lyngby, Denmark.
Characteristic of all conifer needles, the transfusion tissue mediates the radial transport of water and sugar between the endodermis and axial vasculature. Physical constraints imposed by the needle's linear geometry introduce two potential extravascular bottlenecks where the opposition of sugar and water flows may frustrate sugar export: one at the vascular access point and the other at the endodermis. We developed a network model of the transfusion tissue to explore how its structure and composition affect the delivery of sugars to the axial phloem.
View Article and Find Full Text PDFCirculation
September 2024
Christchurch Hospital, Christchurch, New Zealand.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!