chalasia
chalasia
[kah-la´ze-ah]1. relaxation of a bodily opening.
2. an incompetent or relaxed cardiac sphincter that permits reflux of the contents of the stomach into the esophagus. A cause of regurgitation in infants, it is considered a developmental event with no sequelae and gradual resolution.
cha·la·si·a
, chalasis (kă-lā'zē-ă, -lā'sis),Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles.
[G. chalaō, to loosen]
chalasia
Pediatrics Gastroesophageal reflux (GERD) in infants which, if severe, may be associated with ↑ vomiting, crying, discomfort, possibly ↑ risk of GERD as adults. See GERD.cha·la·sia
, chalasis (kă-lā'zē-ă, -lā'sis)Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles.
[G. chalaō, to loosen]