[Evaluation of heart function during endoscopic examination of the upper gastrointestinal tract together with a trial of direct provocation of the sensitizing allergen--initial report].

The heart function was evaluated during endoscopy examination connected with the gastric challenge with the sensitizing allergen. The study involved 13 patients with diagnosed pollinosis and without any disorder of the cardiovascular system. The heart function was evaluated by Holter monitoring, performed both in 24 hours of control before endoscopy examination and in 24 hours of exposure during and after gastric challenge with the sensitizing allergen. In all cases, there was no important heart dysfunction, in spite of positive results of provocation confirmed by histopathological and immunological examinations.