With the development of optics and mechanics, endoscopic technologies are not only used as a simple diagnostic method, but also applied in therapy. Since the beginning of the 21st century, minimally invasive medicine has become the development trend. Many novel technologies have appeared, such as endoscopic mucosal resection, endoscopic submucosal dissection, and peroral endoscopic myotomy. Esophageal motility disorders are common diseases in clinic, which seriously affect the quality of life. Although esophageal manometry is the golden diagnostic standard, endoscopy also plays an important role in diagnosis. There are many therapeutic methods in achalasia and gastroesophageal reflux diseases with good efficacy, while the therapy in other esophageal motility disorders remains in dispute. According to the domestic and foreign research progressions, we introduce the role of endoscopy in the diagnosis and management of esophageal motility disorders.
Endoscopy, Digestive System ; Esophageal Motility Disorders ; diagnosis ; surgery ; Humans

A 49-year-old woman visited our hospital with dysphagia and chest pain. In another hospital, she was diagnosed as reflux esophagitis. Although she had taken proton pump inhibitor and prokinetics drugs for a long time, she was not relieved of any symptoms. On the basis of high resolution manometry and endoscopic ultrasonography findings, Jackhammer esophagus was diagnosed. In this patient, peroral endoscopic myotomy (POEM) was performed for long myotomy of thickened circular muscle. During the procedure, there were no significant complications and she was discharged uneventfully. Symptoms were completely improved during three months after POEM. Here, we report on a case of Jackhammer esophagus treated by POEM.
Endoscopy, Digestive System ; Endosonography ; Esophageal Motility Disorders/*diagnosis/surgery ; Female ; Humans ; Manometry ; Middle Aged