The pathogenesis of ectopic gastric mucosa is a matter of debate between a congenital-embryological-and an acquired origin-consecutive to a gastroesophageal reflux (GER) like Barrett's esophagus -, the most commonly accepted theory being that these areas are embryological remnants.
Standard size latex filled helium balloons stay afloat for approx 8 - 12 hours, metallic helium filled balloons float for 2-5 days. I have found that a 36 latex helium filled balloon can stay afloat for a number of days due to the thickness of the balloon and the massive quantity of helium.
âThe price of helium has almost tripled in the last five years,â said Lori Barrett, co-owner of The Secret Garden, 1215 E. Pershing Road. Florists and party retailers who sell helium balloons see a surge in sales around Valentine's Day, increasing the need to have an ample helium supply on hand to meet the demand.