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The failure of a ring of muscle fibers, such as a sphincter of the esophagus, to relax.

[New Latin : a- + Greek khalasis, relaxation (from khalān, to loosen).]


(Medicine) pathol failure of the cardiac sphincter of the oesophagus to relax, resulting in difficulty in swallowing
[New Latin, from a-1 + Greek chalasis relaxation]


(ˌæk əˈleɪ ʒə, -ʒi ə, -zi ə)

inability of a circular muscle, esp. of the esophagus or rectum, to relax, resulting in widening of the structure above the muscular constriction.
[1910–15; a-6 + Greek chálas(is) (chala-, s. of chalân to loosen + -sis -sis) + -ia]


n. acalasia, falta de capacidad de relajación esp. de una abertura o esfínter.


n acalasia
References in periodicals archive ?
Table 1: Aetiological factors for dysphagia Diagnostic Group Example Neurological Stroke Sub Arachnoid Haemorrhage Multiple Sclerosis Motor Neuron Disease Brain tumour Traumatic Brain Injury Encephalitis Post Polio Syndrome Developmental problems (Cleft palate) Musculoskeletal Cervical Osteophytes Spondylolisthesis Rheumatoid arthritis Disc Prolapse Malignancy Tongue Gum Larynx Pharynx Oesophagus Infection Candida Streptococcal Cardio respiratory Heart Failure COPD Lung Fibrosis Iatrogenic Post intubation Post surgery Other Pharyngeal pouch Pharyngeal atresia/stenosis Cricopharyngeal spasm Oesophageal atresia Oesophageal achalasia Frailty Medication Anticholinergic medication Antibiotics Opiates Anti psychotics Benzodiazepines Calcium Channel Blockers Self Harm Bleach Fire
The two procedures involved patients with achalasia, a rare disorder that prevents proper digestion.
Achalasia is a condition in which there is loss of peristalsis of the smooth muscle of the esophagus, and failure of relaxation of the lower esophageal sphincter (LES).
Investigators Prove Role of BTX A for Treatment of Achalasia II-51
Other disorders with eosinophilia like Crohn's, coeliac disease or achalasia should be excluded.
4,5) Less frequently, Candida esophagitis results from stasis caused by esophageal motility disorders such as scleroderma and achalasia that allow the fungal organism to overgrow and colonize the esophagus.
One youngster who has needed the help and support of the hospital is Angel Ash, 10, who was diagnosed with achalasia disease in February a rare disease suffering with choking when she was eating and drinking then vomiting.
One youngster who has recently needed the help and support of the hospital is Angel Ash, 10, who was diagnosed with achalasia disease in February, a rare disease which means she suffered with choking when she was eating and drinking, then vomiting.
The criteria included achalasia, diffuse esophageal spasm, nutcracker esophagus, and hypertensive lower esophageal sphincter (LES) pressure, Dr.
disorders of ocular motility, writer's cramp, hemi facial spasm and spasticity, achalasia, chronic anal fissure and hyperhidrosis (Table II).