<unk> , or hypertensive peristalsis, is a disorder of the movement of the esophagus characterized by contractions in the smooth muscle of the esophagus in a normal sequence but at an excessive amplitude or duration.<unk>  is one of several motility disorders of the esophagus, including achalasia and diffuse esophageal spasm. It causes difficulty swallowing, or dysphagia, to both solid and liquid foods, and can cause significant chest pain; it may also be asymptomatic.<unk>  can affect people of any age but is more common in the sixth and seventh decades of life. The diagnosis is made by an esophageal motility study (esophageal manometry), which evaluates the pressure of the esophagus at various points along its length. The term<unk> " comes from the finding of increased pressures during peristalsis, with a diagnosis made when pressures exceed 180 mmHg; this has been likened to the pressure of a mechanical<unk> . The disorder does not progress, and is not associated with any complications; as a result, treatment of<unk>  targets control of symptoms only.
Nutcracker esophagus
Barrett's esophagus
Esophageal web
Esophageal achalasia
Esophageal candidiasis
Esophageal stricture
Herpes esophagitis
Lymphocytic esophagitis