[Significance of the correction of aspirated volumes for the results of the secretin-pancreozymin test (author's transl)].

A group of 123 patients without manifestation of an impaired pancreatic function was studied with the secretin-pancreozymin test (group I). In 54 patients (group II) the correction of aspirated volumes during the secretin-pancreozymin test was performed with polyethylene glycol 4000 (PEG) as a marker substance. The mean values of volume-, bicarbonate- and enzyme secretion showed higher levels in 7 of 9 parameters in group II. The recovery rate of polyethylene glycol in group II (median: 92% indicated, why there was no marked difference between both groups. If the secretin-pancreozymin test is performed according to the above method the correction of aspirated volumes becomes negligible for the determination of normal values. However single results of the secretin-pancreozymin test, especially pathological ones, can only be based on the correction of the aspirate.