贲门失弛缓症又称贲门痉挛、巨食管,是由于食管贲门部的神经肌肉功能障碍所致的食管功能性疾病。其主要特征是食管缺乏蠕动,食管下端括约肌(LES)高压和对吞咽动作的松弛反应减弱。临床表现为吞咽困难、胸骨后疼痛、食物反流以及因食物反流误吸入气管所致咳嗽、肺部感染等症状。贲门失弛缓症在我国缺乏流行病学资料,在欧美等西方国家该病的发生率每年约为1/10万,男女发病率相似,约为1:1.15。本病多见于20~50岁的青壮年,但其他年龄段也可发病,病程多较长。贲门失驰缓症的诊断 Cardiac achalasia, also known as cardia spasm, giant esophagus, is due to esophageal cardia Department of neuromuscular dysfunction caused by esophageal functional disease. Its main feature is the lack of peristalsis in the esophagus, the high pressure of the lower esophageal sphincter (LES) and the relaxation response to swallowing. Clinical manifestations of dysphagia, post-sternal pain, food reflux and due to food reflux due to inhalation of the trachea caused by cough, lung infection and other symptoms. Achalasia is lack of epidemiological data in our country. The incidence of this disease is about 1/10 million in Western countries such as Europe and the United States. The incidence of achalasia is similar between men and women, which is about 1: 1.15. The disease more common in young adults aged 20 to 50, but other age groups can also disease, longer duration. Diagnosis of cardia dementia