Contrast medium resorption in ERCP

: During this study the absorption rates of two contrast media were measured in double-blind design. 33 patients received lopamidol (Solutrast 300), and 30 patients Meglumine iothalamate (Conray 60). A regular absorption of the contrast media during ERC, ERP and ERCP could be stated. With reference to the absorption rates a slight, but for statistically not significant advantage for the contrast medium lopamidol could be ascertained. During ERC the absorption rates ranged from 0.4 to 30%, during ERP from 2.2 to 18.8% and during ERCP from 1.0 and 30.0%. Consequently the endoscopist always has to take into account an anaphylactoid reaction due to the systemic absorption of contrast media which, compared to other examinations with contrast media, happens relatively seldom.