Calcification and related dysfunction of ventriculo-peritoneal shunts are rare events in neurosurgical practice. Shunt calcification causes shunt dysfunction in two ways, namely disconnection and obstruction. We present a 16-year-old girl with shunt malfunction due to disconnection secondary to calcification. The shunt tubing fractured during attempted removal and some of the remaining components, including the ventricular catheter, had to be left in situ. The shunt was revised and the patients symptoms resolved. Replacement of the calcified and perished shunt components with a new shunt is essential. Aggressive surgical manipulation for removal of the remaining shunt components is not advisable as this may increase morbidity and mortality.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.jocn.2003.02.012 | DOI Listing |
J Cardiovasc Surg (Torino)
February 2025
Department of Vascular Surgery, ASST Settelaghi Universitary Teaching Hospital, University of Insubria, Varese, Italy.
Optimizing the longevity of vascular access in hemodialysis patients remains a critical aspect of patient care, given the significant role of arteriovenous fistulas (AVFs) and arteriovenous grafts (AVGs) in enabling effective dialysis. Vascular access complications, such as stenosis, thrombosis, and cannulation-related damage, continue to challenge both the functionality and the sustainability of these access points. Recent advancements underscore the importance of a robust follow-up strategy, integrating clinical evaluations with diagnostic tools like color Doppler ultrasound (CDU) and emerging interventional approaches such as drug-coated balloon (DCB) angioplasty.
View Article and Find Full Text PDFGastro Hep Adv
September 2024
Blacktown Clinical School, School of Medicine, Western Sydney University, Penrith, New South Wales, Australia.
World J Gastroenterol
January 2025
Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510151, Guangdong Province, China.
Background: Transjugular intrahepatic portosystemic shunt (TIPS) is an effective intervention for managing complications of portal hypertension, particularly acute variceal bleeding (AVB). While effective in reducing portal pressure and preventing rebleeding, TIPS is associated with a considerable risk of overt hepatic encephalopathy (OHE), a complication that significantly elevates mortality rates.
Aim: To develop a machine learning (ML) model to predict OHE occurrence post-TIPS in patients with AVB using a 5-year dataset.
J Biomech
January 2025
School of Mechanical Engineering, Hefei University of Technology, Hefei, Anhui 230009, PR China. Electronic address:
Hemodynamic processes from the portal vein(PV) to the inferior vena cava(IVC) were mimicked for three patients with portal hypertension(PH) and the effects of stent parameters on the outcomes of transjugular intrahepatic portosystemic shunt(TIPS) were investigated through computational fluid dynamics(CFD). The liver region was simulated with porous media model and the spatial distributions of superior mesenteric vein(SMV) and splenic vein(SV) blood were solved through the Eulerian multiphase model. The present method is able to simulate the PH flow and predict the PV pressure, the stent shunt rate and the SMV blood proportion after TIPS treatment.
View Article and Find Full Text PDFSurg Radiol Anat
January 2025
Department of Radiology, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita, 286-8520, Chiba, Japan.
Purpose: We present the case of a rare extrahepatic portocaval shunt that resulted in communication of the portal vein and the inferior vena cava (IVC) at the level between two right renal veins that was incidentally diagnosed with contrast-enhanced computed tomography (CECT) in an asymptomatic patient.
Methods: A woman in her sixties with abdominal pain and diarrhea of unclear origin underwent exploratory abdominal CECT.
Results: The CECT incidentally revealed an extrahepatic portocaval shunt, whereby a vessel arising from the portal vein superior to the confluence of the superior mesenteric and splenic veins drained into the posterior aspect of the IVC between two right renal veins.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!