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]

chalasia

Abnormal relaxation or loss of retaining power, especially of the muscle ring at the lower end of the OESOPHAGUS.
References in periodicals archive ?
Efficacy of Rigiflex balloon dilatationin 12 children with a chalasia: a 6-month prospective study showing weight gain and symptomatic improvement.