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In Europe, transjugular intrahepatic portosystemic shunt (TIPS) is considered the primary treatment for gastric varix (GV) bleeding to reduce portal hypertension. However, in Asian countries, balloon-occluded retrograde transvenous obliteration (BRTO) and its variants plug/coil assisted transvenous retrograde obliteration (PARTO/CARTO) are the preferred approaches. The purpose of this study is to report a European single-center experience in the use of PARTO/CARTO techniques for the treatment of GVs in patients with portal hypertension, focusing on the effectiveness and safety of the procedure. All the procedures involving the PARTO/CARTO techniques performed from 2019 to 2023 were retrospectively evaluated. Technical success was defined as the complete obliteration of both the GVs and the gastro-renal (GR) shunt on review of the Computed Tomography (CT) scan performed 3 days after the procedure. The obliteration rate was also evaluated through performing CT scans 1 and 12 months after the procedure, and through endoscopic follow-up at 3 and 6 months. Additionally, major and minor complications were reported. The study involved seven patients, with a technical success of 100%. During follow-up, there were no episodes of variceal rebleeding or upper gastrointestinal bleeding. Two patients developed ascites, which resolved with medical therapy. One patient exhibited focal portal thrombosis, which was successfully treated with heparin. PARTO/CARTO techniques demonstrated high technical and clinical success rates, offering advantages over traditional BRTO. The use of coils and plugs simplifies the procedure, eliminates sclerosing agents, and prevents complications associated with balloon guiding catheters. Full article

Background: Congenital portosystemic shunts (CPSS) are rare vascular anomalies resulting in communications between the portal venous system and the systemic venous circulation, affecting an estimated 30,000 to 50,000 live births. CPSS can present at any age as a multi-system disease of variable severity mimicking both common and rare pediatric conditions. Case presentations: Case A: A vascular malformation was identified in the liver of a 10-year-old girl with tall stature, advanced somatic maturation, insulin resistance with hyperinsulinemia, hyperandrogenemia and transient hematuria. Work-up also suggested elevated pulmonary pressures. Case B: A young girl with trisomy 8 mosaicism with a history of neonatal hypoglycemia, transient neonatal cholestasis and tall stature presented newly increased aminotransferase levels at 6 years of age. Case C: A 3-year-old boy with speech delay, tall stature and abdominal pain underwent abdominal ultrasound (US) showing multiple liver nodules, diagnosed as liver hemangiomas by hepatic magnetic resonance imaging (MRI). Management and outcome: After identification of a venous malformation on liver Doppler US, all three patients were referred to a specialized liver center for further work-up within 12 to 18 months from diagnosis. Angio-computed tomography (CT) scan confirmed the presence of either an intrahepatic or extrahepatic CPSS with multiples liver nodules. All three had a hyperintense signal in the globus pallidus on T1 weighted cerebral MRI. Right heart catheterization confirmed pulmonary hypertension in cases A and C. Shunts were closed either using an endovascular or surgical approach. Liver nodules were either surgically removed if there was a risk of malignant degeneration or closely monitored by serial imaging when benign. Conclusion: These cases illustrate most of the common chief complaints and manifestations of CPSS. Liver Doppler US is the key to diagnosis. Considering portosystemic shunts in the diagnostic work-up of a patient with unexplained endocrine, liver, gastro-intestinal, cardiovascular, hematological, renal or neurocognitive disorder is important as prompt referral to a specialized center may significantly impact patient outcome. Full article