The complication rate is about 1 in 1000. They include: * aspiration, causing aspiration pneumonia * bleeding * perforation * cardiopulmonary problems When used in infants, the<unk>  may compress the trachealis muscle, which narrows the trachea. This can result in reduced airflow to the lungs. Infants may be intubated to make sure that the trachea is fixed open.
Esophagogastroduodenoscopy
Nasoendoscopy
Magnetogastrography
Electrogastrogram
Endoscopic ultrasound
Chromoendoscopy
GI cocktail
Sialoendoscopy