Esophageal and gastric varices develop as a consequence of portal hype
rtension and advanced chronic liver disease, Bleeding from these varic
es causes high mortality and morbidity, The exact mechanism leading to
rupture of varices is unknown, but portal pressure, intravariceal pre
ssure, and increased variceal wall tension may be factors, Large varic
es are most likely to bleed, and some studies suggest that red wales o
n varices may predict bleeding risk. Surgery and endoscopic sclerother
apy are not useful for preventing initial variceal bleeding, but nonse
lective beta-adrenergic blocking drugs have been shown to be beneficia
l in primary prophylaxis. Proper selection of patients and careful mon
itoring of side effects during treatment enhance successful outcomes.