Preclinical testing in animal model is a required stage of vascular device development. Among small animal models, rabbits provide vasculature with relative larger caliber for anastomotic implantation of vascular grafts as preclinical testing before conducting large animal studies. Rabbits have similar hemostatic mechanism with human and can accommodate vascular grafts with various diameters at different locations, and thus provide a valid model to assess small-diameter vascular grafts. This chapter will describe the procedures and materials required to conduct survival surgery in rabbit carotid artery models for implantation of small-diameter tubular grafts with an end-to-side and end-to-end anastomotic technique.
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http://dx.doi.org/10.1007/978-1-0716-1708-3_15 | DOI Listing |
J Vasc Access
January 2025
Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Boston, MA, USA.
Background: Although conventional pre-operative venography can accurately delineate venous anatomy as an alternative to ultrasound for hemodialysis access planning, it may carry a risk of contrast-induced acute kidney injury (AKI) and progression of renal failure in chronic kidney disease (CKD) patients not yet on dialysis. Therefore, the objective of this study was to evaluate the safety and efficacy of pre-operative venograms in pre-end-stage kidney disease (ESKD) patients.
Methods: We performed a retrospective cohort study (2018-2022) of consecutive pre-ESKD patients who underwent staged bilateral venograms for preoperative vein mapping prior to hemodialysis access creation at a tertiary care medical center.
J Vasc Access
January 2025
Clinic for Vascular and Endovascular Surgery, University Clinical Center of Serbia, Belgrade, Serbia.
Introduction: In many countries, hemodialysis is still the most common method of renal replacement. Significant regional variations exist in creating and maintaining vascular access for hemodialysis. Therefore, analyzing national registries with vascular access data is essential for developing effective national treatment strategies.
View Article and Find Full Text PDFNarra J
December 2024
Department of Radiology, Faculty of Medicine, Universitas Udayana, Denpasar, Indonesia.
Several previous studies have demonstrated the benefits of early macrophage 2 activation fat grafts supplemented with macrophage culture. However, this approach is considered impractical in clinical settings because of intraperitoneal induction use. The aim of this study was to investigate the effect of early stromal vascular fraction (SVF) macrophage-2 activation with IL-4 on fat graft survival compared to SVF alone using an animal model for better fat graft viability.
View Article and Find Full Text PDFNarra J
December 2024
Department of Health Services Research and Management, School of Health and Psychological Sciences, City University of London, London, United Kingdom.
Coronary heart disease (CHD) remains a leading cause of mortality in Indonesia, and coronary artery bypass graft (CABG) surgery is frequently employed to manage arterial blockages. Despite its efficacy, the recurrence of heart disease post-surgery is a significant concern, highlighting the need for a deeper understanding of its influencing factors. The aim of this study was to examine the factors associated with the incidence of heart disease recurrence after coronary bypass surgery.
View Article and Find Full Text PDFHepatol Commun
February 2025
Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany.
Background: Refractory ascites (RA) remains a serious complication in patients with cirrhosis. Currently, the insertion of a TIPS is considered the standard of care in these patients. To achieve symptom control in those with TIPS contraindications, tunneled peritoneal catheters (PeCa) or ascites pumps were introduced.
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