Systems and methods according to present principles meet the needs of the above in several ways, and in particular provide a product that can continuously monitor and remove air from the stomach without removing liquid from a premature neonate's stomach. The device works by providing suction pressure of, e.g., 10±0.1 mmHg through the feeding tube to continuously remove air from the stomach. In this way the device prevents the problem of gastric distension all together. The pressure may be regulated by using an electronic control valve.