[2] With the advent of modern endoscopic techniques which can rapidly and definitively control variceal bleeding, Sengstaken–Blakemore tubes are rarely used at present.

More modern models also have an opening near the upper esophagus; such devices are properly termed Minnesota tubes.

A traction of 1 kg is applied to the tube so that the gastric balloon will compress the gastroesophageal junction and reduce the blood flow to esophageal varices.

The tube may be difficult to position, particularly in an unwell patient, and may inadvertently be inserted in the trachea, hence endotracheal intubation before the procedure is strongly advised to secure the airway.

The tube is often kept in the refrigerator in the hospital's emergency department, intensive care unit and gastroenterology ward.