UNUSUAL PRESENTATION OF GASTRIC DILATATION - DRAMATIC COMPLETE ATRIOVENTRICULAR-BLOCK

We report a case of gastric dilatation in a ventilated 18 year-old wom an, which was revealed by the acute onset of hypotension, sinus bradyc ardia, and complete atrioventricular block. Hypotension and cardiac rh ythm disturbances resolved with intravenous injection of atropine, but recurred a few minutes later and required a second bolus of atropine, which had a transient beneficial effect. Only gastric decompression, as soon as gastric distention was recognized, was able to restore norm al cardiac rhythm and adequate blood pressure. This case highlights th e seriousness of gastric dilatation and argues for the vagal mechanism of cardiac rhythm and conduction troubles complicating gastric dilata tion.