The results, observed by an endoscope (a camera on a tube) revealed no damage to the mucous membrane.
It was only during a second admission to the hospital on 20 March that an endoscope examination identified a problem.
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The new procedures are all performed using a cameralike device called an endoscope, which snakes down the throat and allows doctors a view of the esophagus.
In the case of lung transplants, the donor will have a chest x-ray and broncoscopy, where an endoscope is used to examine lungs from the inside.
They are performed using an endoscope inserted through the mouth.
Doctors seldom see evidence of acid erosion when they use an endoscope a long tube with a lighted camera that lets them examine the esophagus but there is debate over what that means.
Later that evening I had a biopsy, where they stuck an endoscope down my throat, through my stomach and into my intestines, put a needle into my pancreas and got a few cells from the tumor.
In the procedure, called injection augmentation of the vocal folds, a doctor threads an endoscope through the patient's nose or mouth into the throat, then injects a tiny amount of collagen, fat, hyaluronic acid or a gel filler into the vocal cords to plump them up.
They ended up producing a flexible catheter tube that goes a bit of the way up the nostrils, then a guide wire is inserted into the targeted sinus. (In live patients this is done via an endoscope and fluoroscope.) A balloon catheter is advanced over the guide wire and positioned against the blocked ostium.
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