[Continue to strengthen the study on diagnosis and surgical treatment of primary esophageal motility disorders and gastroesophageal reflux diseases].

The advent of high-resolution esophageal manometry in this century produced manometric types of esophageal achalasia, which was very important for the selection of treatment methods and the assessment of prognosis. The application of 24-hour esophageal pH monitoring combined with impedance played a decisive role in determination of gastroesophageal reflux and refluxant. Advanced technologies such as laparoscopic Heller myotomy and per-oral endoscopic myotomy were used for surgical treatment of achalasia, laparoscopic anti-reflux procedures and magnetic sphincter augmentation were applied to the treatment of gastroesophageal reflux diseases (GERD). These advanced procedures implied that the treatment of primary esophageal motility disorders (PEMD) and GERD came into the minimally invasive era. However, the diagnosis and treatment of PEMD and GERD are not popular enough in our country, the studies and high-level clinical evidences are insufficient on uncommon PEMD and complex GERD, which are the further directions of efforts.