Accessory Hepatic Vein Stenting in the Management of Budd-Chiari Syndrome: A Case Report

The Budd-Chiari Syndrome (BCS) is associated with hepatic venous outflow obstruction. A 22-year-old female patient presented with abdominal pain and backache for 12 days, along with generalised weakness. Physical examination revealed pitting pedal oedema and abdominal distension. An abdominal ultrasound with Doppler Ultrasonography (USG) was performed, revealing liver parenchymal Resonance Imaging (MRI) of the liver, as well as a right hepatic venogram using Digital Subtraction Angiography (DSA), showed chronic total occlusion at the ostium. An Accessory Hepatic Vein (AHV) was identified, joining the Right Hepatic Vein (RHV) to the Inferior Vena Cava (IVC). The accessory RHV exhibited high-grade stenosis (approximately 90-95%) at its junction with the IVC. Recanalisation of the AHV (balloon dilatation/stent insertion) was performed. Post-procedure accessory hepatic venogram showed a patent stented segment with a significant reduction in adjacent venous collaterals. No procedure-related complications were observed. The present case highlights the importance of AHV stenting in BCS patients, as it helps maintain normal physiology, in contrast to Direct Intrahepatic Porto-systemic Shunt (DIPS), which alters normal physiology by allowing portal venous blood to mix directly into the systemic circulation, bypassing the liver parenchyma.