Patient : Description of the condition (onset time, main symptoms, hospital visited, etc.): The patient was male, 74 years old, admitted to the hospital during the Spring Festival with a cold, stomach discomfort, hiccups, acid reflux and heartburn for one week. He was discharged from the hospital after one week of infusion treatment and was basically cured. After discharge, he ate basically normal food, mainly soft food, but felt an obstructive discomfort in his esophagus. The patient has hypertension, cardiovascular disease and other elderly diseases, it is not easy to do ordinary gastroscopy, can capsule gastroscopy or other effective auxiliary examination? Doctor: Capsule endoscopy is actually suitable for the examination of the small intestine, because the capsule endoscope in the esophagus through too fast, in the stomach because of the stomach Zou wall is thicker and larger gastric cavity, the scope and accuracy of observation is limited, observation of more blind areas, so for the esophagus and stomach, duodenum, or gastroscopy is the most accurate and cheap. And gastroscopy due to the length and anatomical reasons, can not observe the small intestine, then the capsule endoscopy will play a key role, capsule endoscopy costs about 3,000 yuan. There are many people in their 80s who undergo gastroscopy and should be evaluated by a physician as to whether they can undergo gastroscopy. Of course, if you do not want to undergo a gastroscopy, other methods of examination are barium meal, special gastric ultrasonography, but the accuracy is lower than gastroscopy.