Background: To determine the structural changes of Wallstents (Boston Scientific, Natick, MA) in vivo following deployment in iliac veins.
Methods: This retrospective single-center study was performed from September 2012 to April 2013 and included 100 office-based patients who underwent initial stent placement for nonthrombotic iliac vein lesions with Wallstent as well as a second procedure for stenting of the contralateral iliac vein. Measurements were obtained with marker balloons and the diameters of the stents were compared at the time of the index procedure to the secondary procedure.
Results: The average time between the 2 procedures was 28 days (range 3-237, SD ± 39.89). The overall average stent diameter after the index procedure was 16.38 mm (range 10.95-21.45, SD ± 2.24). The overall average stent diameter of the index stent when remeasured during the second intervention was 17.58 mm (range 12.84-24.11, SD ± 2.38, P = 0.0003), which was significantly different from the initial measurements. There was no difference when comparing changes in stent diameter by gender or laterality of procedure. However, there was a significant difference in expansion of stents when placed in the common iliac vein versus the external iliac or common femoral veins.
Conclusions: This study shows that self-expanding Wallstents can continue to expand days to weeks in vivo following initial deployment. Additionally, we found that the change in diameter from initial placement to follow-up was more significant in stents placed in the proximal and middle segments of the common iliac vein.
Clinical Relevance: Wallstents are durable implants designed to last within a patient for the rest of their life, it is important to understand the structural changes occurring after their placement. This study allows for a better understanding of Wallstent dynamics in vivo.
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http://dx.doi.org/10.1016/j.avsg.2024.07.097 | DOI Listing |
Simultaneous pancreas-kidney (SPK) transplantation is a recognized treatment for patients with insulin-dependent diabetes and advanced chronic kidney disease or end-stage renal disease (ESRD), offering significant survival benefits. However, it is associated with a higher risk of venous thrombosis, which can jeopardize the survival of the pancreaticoduodenal graft. This case report describes a patient with type 2 diabetes, hypertension, and ESRD who developed acute, occlusive deep vein thrombosis (DVT) involving the right common femoral, profunda femoral, and greater saphenous veins on postoperative day 1 (POD1) following a deceased donor SPK transplant, despite systemic prophylactic anticoagulation.
View Article and Find Full Text PDFVasc Specialist Int
December 2024
Division of Vascular Surgery, Department of Surgery, Seoul National University College of Medicine, Seoul, Korea.
Major vessel invasion, particularly involving the portal and superior mesenteric veins, poses significant challenges during the radical resection of hepatobiliary and pancreatic cancers. Oncovascular surgery is essential for curative outcomes, and often requires portomesenteric vein reconstruction. Techniques, such as lateral venorrhaphy, patch repair, end-to-end anastomosis, and interposition grafting, have been employed.
View Article and Find Full Text PDFThis case report describes a unique presentation of May-Thurner syndrome (MTS) in a 28-year-old woman, characterized by the congenital bifurcation of the left common iliac vein (LCIV) into the outer (OLCIV) and inner (ILCIV) segments. Both veins experienced significant compression - OLCIV proximally and ILCIV medially - due to the overlying right common iliac artery (RCIA) and lumbar spine. The patient presented with bilateral spider veins, lower extremity swelling, pelvic discomfort, and bilateral leg cramping.
View Article and Find Full Text PDFCureus
November 2024
Department of Anatomy, National and Kapodistrian University of Athens School of Medicine, Athens, GRC.
Iliac vein aneurysms are a relatively rare clinical medical case requiring careful management. In general, vessel aneurysms are always an intriguing entity to approach due to the various options for diagnosis and treatment, which are heavily dependent on the unique characteristics of the condition. Such features include etiology, location, and coexistence with other abnormalities.
View Article and Find Full Text PDFAACE Clin Case Rep
September 2024
Department of Internal Medicine, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates.
Background/objective: Obesity and rapid weight loss are risk factors for developing deep vein thromboses (DVTs). Our aims were to present a patient who developed extensive DVT after relatively rapid and severe weight loss that followed taking tirzepatide and to raise the awareness among health care professionals regarding the risk of DVT that can be associated with significant weight loss due to these agents.
Case Report: We present the case of a 20-year-old young man, with raised body mass index of >35 kg/m, who was initiated on tirzepatide treatment for weight loss, with 12-kg weight lost over 6 weeks.
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