Cyanoacrylate Glue for Gastric Varices

Cyanoacrylate glue is a medical adhesive commonly used in the treatment of gastric varices, particularly in patients with cirrhosis who are experiencing variceal bleeding. Gastric varices are dilated veins in the stomach, which can rupture and lead to life-threatening bleeding. Cyanoacrylate glue is injected endoscopically into the varices to achieve hemostasis by rapidly solidifying upon contact with blood, thereby sealing the bleeding vessels.

A randomized controlled trial compared two strategies for cyanoacrylate therapy in patients with cirrhosis and large gastric varices experiencing their first variceal bleed: aggressive and conservative approaches. In the aggressive approach, all visible gastric varices were obliterated with cyanoacrylate glue, while in the conservative approach, only varices with high-risk features or signs of recent bleeding were treated.

The study found that both approaches had similar outcomes in terms of 1-year variceal rebleeding rates (18.2% for aggressive vs. 15.0% for conservative) and all-cause mortality (22.2% vs. 32.9%, respectively). Aggressive therapy, however, achieved faster obliteration of varices and required fewer endoscopic sessions. Adverse event rates were comparable between the two groups.

In conclusion, while aggressive cyanoacrylate therapy may expedite variceal obliteration, its clinical outcomes are similar to those of conservative therapy, making both approaches viable options depending on patient needs.