CASE 18641 Published on 29.07.2024

Haemodialysis central venous catheter causing hepatic vein thrombosis

Section

Cardiovascular

Case Type

Clinical Case

Authors

Massimo Della Giustina 1, Marco Sorato 2

1 Istituto Universitario di Radiodiagnostica, Santa Maria della Misericordia University Hospital, Udine, Italy

2 Department of Radiology, Santi Giovanni e Paolo Hospital, Venice, Italy

Patient

38 years, male

Categories
No Area of Interest ; Imaging Technique CT
Clinical History

A 38-year-old man with a history of polycystic kidney disease (heterozygous mutation of PKD1) on biweekly dialysis, awaiting transplant.

Admitted to our nephrology department for anaemia after having recently undergone a left nephrectomy performed elsewhere for polycystic kidney.

Imaging Findings

A CT scan performed on admission demonstrated the presence of blood material retroperitoneally in the left flank and medial to the splenic parenchyma and adjacent to the profile of the left psoas, in planes passing through L5, a hyperdense spot in the arterial phase without increasing in later phases. Subsequent angiography of the hypogastric artery revealed no active spillage.

A CT scan performed at discharge after polytransfusion, negative for active bleeding, showed a migration of the tip of the central venous catheter used for dialysis which had passed through the inferior vena cava wedging at the outlet (flow direction) of the left suprahepatic vein, which appeared completely thrombosed.

Discussion

The incidence of end-stage renal disease (ESRD) in the United States of America has tripled between 1990 and 2018 [1]. Haemodialysis represents the primary form of renal replacement therapy and must be initiated as soon as possible to reduce mortality [2].

Arteriovenous fistulas (AVFs) and grafts provide the optimal long-term central venous access for haemodialysis (HD). However, in the event of failure, alternative sites must be considered. In approximately 15% of patients with ESRD and multiple access failures, tunnelled dialysis catheters (TDCs) provide an alternative access site for HD [3]. In particular, transhepatic venous catheters, although associated with an increased incidence of catheter thrombosis [4], represent a valid access site when no other accessible central venous route is available. TDCs are a popular choice for initial dialysis treatment [11] and could be a suitable alternative to an AVF in complex patients, particularly those with limited life expectancy and vascular access problems [2,410] despite the presence of complications such as primarily venous thrombosis/stenosis and infection. However, other complications of significant importance must also be considered, including Horner’s syndrome, pneumothorax and cardiac tamponade. They remain a popular choice for initial dialysis treatment [11].

The incidence of complications (haematoma, infection, malposition) is significantly lower compared to other catheterisations, with a 25 times lower rate [12,13]. Furthermore, the occurrence of catheter malposition is rare with this type of catheterisation [14,15]. The occurrence of catheter malposition and the resulting vascular injury/perforation and catheter thrombosis may depend on numerous factors, including methodological inadequacies, anatomical variations and operator experience [16,17].

BuddChiari syndrome is defined as an obstruction of the hepatic veins at any level (from the inferior vena cava to the right atrium) caused by a variety of factors, including systemic thrombotic and non-thrombotic conditions. As a consequence of this obstruction, the liver is unable to drain effectively, resulting in increased pressure within the hepatic sinusoids. This leads to portal hypertension and reduced hepatic perfusion. Patients typically present with hepatomegaly, ascites, abdominal swelling and pain.

The mainstay of treatment is the removal of the obstruction, anticoagulant therapy and the management of the underlying disease. Liver transplantation is considered because of the possibility of progression to hepatic fibrosis and cirrhosis [18].

The utilisation of imaging techniques during and subsequent to catheterisation has the potential to prevent significant morbidity and mortality. Nevertheless, catheter malposition represents a relatively uncommon complication.

Differential Diagnosis List
Right-sided heart failure
Biliary atresia
Congenital hepatic fibrosis
Dialysis catheter malposition
Final Diagnosis
Dialysis catheter malposition
Case information
URL: https://www.eurorad.org/case/18641
DOI: 10.35100/eurorad/case.18641
ISSN: 1563-4086
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