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2003.
[Proximal endoscopy--from diagnosis to therapy].
Gastroscopy is medical procedure which allows examination of esophagus, stomach and duodenum by flexible instrument named gastroscope. Procedure could be strictly diagnostical, with evidence of current state and interventional/therapeutical, by attempting of prompt action (haemostasis, mucosal resection of cancer "in situ", polypectomy, dilation of benign and malignant strictures of digestive tube, placing endoprosthesis over strictures) Despite of its invasive nature, endoscopy is daily routine, safe and accurate procedure.