Abstract
Background 
 Portal hypertension (pHTN) is primarily caused by liver cirrhosis, which can lead to varices at portosystemic anastomoses.1,2 Gastric variceal bleeding (GVB) is rare but can be life-threatening with a mortality up to 50% for each bleeding episode. When endoscopic banding is ineffective and TIPS placement is contra-indicated due to risk of post-TIPS encephalopathy, coil-assisted retrograde transvenous obliteration (CARTO), which has shown great success in some studies, can be an effective treatment.5,8,9,10 This case demonstrates successful use of CARTO to treat GVB in a patient with a gastrorenal shunt (GRS) who presented with pHTN. 
 
 Case Overview 
 A 62-year-old female with cirrhosis due to nonalcoholic steatohepatitis (NASH) presented with pHTN and GVB. The patient had a massive GRS, which permitted access through the systemic venous circulation to treat the bleeding varices. Furthermore, the patient had hepatic encephalopathy (HE), making TIPS placement a poor choice due to risk of HE exacerbation. CARTO was performed to treat the bleeding varices and had the added benefit of decreasing risk of HE. 
 
 Discussion/Results 
 This case highlights CARTO in a patient with a 22mm GRS using a dual catheter system. Eighteen detachable 035 coils were first deployed in the GRS, followed by complete occlusion with a Gelfoam slurry to obliterate the gastric varices. Studies have described CARTO, all of which have shown incredibly high technical (complete embolization by angiography and/or CT) and clinical (no variceal rebleeding) success rates. This patient returned for follow-up CT and endoscopic imaging, which confirmed technically and clinically successful CARTO. 
 
 Conclusion and Potential Impact 
 CARTO appears to be a safe alternative to TIPS when treating GVB caused by pHTN, especially in patients who have HE and a GRS. Thus, CARTO should be discussed as a treatment option for these patients. Although portal pressure increases post-CARTO, the improvement of HE can lead to an improved safety profile with future TIPS.
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