BRTO and TIPS Outperform Cyanoacrylate for Secondary GV Bleeding Prevention : Meta-analysis | May 2026

Introduction

Gastric Varices are associated with severe hemorrhage, high transfusion requirements and substantial mortality in patients with Cirrhosis. Compared with esophageal varices, gastric varices bleed less frequently but often more catastrophically. Secondary prophylaxis after an index bleed remains challenging, and optimal management strategies continue to evolve. Current therapeutic options include endoscopic cyanoacrylate injection (ECI), Balloon-Occluded Retrograde Transvenous Obliteration and Transjugular Intrahepatic Portosystemic Shunt, each with distinct physiologic consequences and complication profiles.

Problem Statement

There remains no universal consensus regarding the optimal secondary prophylactic modality for gastric variceal bleeding. Comparative data among ECI, BRTO and TIPS have been limited by heterogeneity, small trial sizes and inconsistent outcome reporting.

Summary

This comprehensive aggregate and individual patient data meta-analysis evaluated outcomes of BRTO and TIPS compared with endoscopic cyanoacrylate injection for prevention of recurrent gastric variceal bleeding in cirrhosis. The study incorporated data from both observational studies and randomized controlled trials, strengthening comparative assessment across multiple therapeutic approaches.

The primary finding was that both BRTO and TIPS significantly reduced all-cause rebleeding compared with cyanoacrylate injection alone. BRTO demonstrated the greatest reduction in recurrent bleeding risk, while TIPS also provided substantial protection against rebleeding events. These findings reinforce the superior durability of portal hemodynamic interventions compared with local endoscopic obliteration alone.

Importantly, however, improved bleeding control did not translate into a demonstrable overall survival advantage. This likely reflects the multifactorial nature of mortality in advanced cirrhosis, where outcomes are influenced not only by recurrent hemorrhage but also by liver failure, infection, renal dysfunction and other portal hypertensive complications.

Distinct complication profiles emerged between the endovascular strategies. BRTO was associated with increased risk of new or worsening ascites. Mechanistically, this is biologically plausible because BRTO obliterates spontaneous portosystemic shunts, thereby increasing portal venous pressure and potentially exacerbating portal hypertensive fluid accumulation.

Conversely, TIPS substantially increased the risk of Hepatic Encephalopathy. By diverting portal blood away from hepatic detoxification pathways, TIPS predisposes susceptible patients to ammonia accumulation and neurocognitive dysfunction, a well-recognized tradeoff of portal decompression.

One particularly important observation was that benefits in bleeding reduction were most pronounced among patients with Child-Pugh class B cirrhosis. This suggests that patients with intermediate hepatic reserve may derive the greatest net benefit from aggressive endovascular secondary prophylaxis strategies, whereas more advanced disease may attenuate therapeutic gains.

Clinically, the findings support a more individualized approach to gastric variceal secondary prophylaxis. BRTO may be particularly attractive in patients with prior encephalopathy or preserved ascites control, whereas TIPS may remain preferable in patients with severe portal hypertension-related complications requiring decompression beyond gastric variceal management alone.

The study additionally highlights persistent limitations in the evidence base. Long-term outcomes remain incompletely characterized, definitions of rebleeding vary across studies and heterogeneity remains especially substantial for TIPS-related outcomes because of differences in stent type, portal pressure targets and patient selection.

Importantly, the analysis reinforces the concept that gastric varices differ fundamentally from esophageal varices in anatomy, hemodynamics and therapeutic response. Management algorithms designed for esophageal varices cannot simply be extrapolated to gastric variceal disease.

Overall, this meta-analysis demonstrates that BRTO and TIPS are superior to endoscopic cyanoacrylate injection for reducing recurrent gastric variceal bleeding in cirrhotic patients. However, treatment selection must balance bleeding prevention against portal hypertensive complications such as ascites and hepatic encephalopathy, emphasizing the need for individualized multidisciplinary decision-making and further long-term comparative studies.