[Weight discordance of the second twin: effect on perinatal morbidity and mortality. An 8-year analysis of 213 twin deliveries].

In this retrospective eight-years-study we examine factors to be considered responsible for higher perinatal mortality in twins, especially in twins with discordant body weight. As a main risk factor for this we find vaginal delivery, i.e.

Imaging of exocrine pancreatic function. Investigation of the bioavailability of weak organic acids as potential pancreatic contrast agents for computed tomography.

Rationale And Objectives: The feasibility of targeting iodinated contrast agents to the exocrine pancreas was investigated. Iodinated weak organic acids including succinic acid-mono-3-amino-2,4,6-triiodo- N-ethylanilide (compound I), the ethanolamine salt of N-ethylsuccinic acid-(2,4,6-triiodo-3-methylamino anilide) (compound II), and the sodium salt of 2,4,6-triiodo-3-N-ethylacetylamino-phenylpropionic acid (compound III) were studied as potential contrast agents for computed tomography (CT) of the pancreas.

Methods: An ex vivo perfusion system was used to compare pancreatic uptake of the three compounds.