The analysis of 19 esophageal and pulmonary scintiscans performed with a non-reabsorbable radioactive tracer shows that this is a simple and efficient way of detecting the presence of a GER or a bronchial aspiration of gastric contents in children. This examination proves to be more sensitive, with a lower amount of radiation necessary, than the radiological gastroesophagography. It is less invasive and takes place under more physiological conditions. It is especially useful when symptoms lead one to suspect a syndrome of GER with aspiration.