Abstract
The effects of β-receptor stimulation by isoproterenol on ampullary flow and passage of intracholedochal foreign bodies were evaluated in dogs. Flow rates for saline across the ampulla were unchanged by β stimulation except for the earlier appearance of flow in association with a decrease in sphincteric resistance. The mean irrigation pressures required for the passage of a foreign body into the duodenum decreased by 46% from control values when isoproterenol was infused. Stimulation of β receptors may thus serve as a valuable adjunct in the management of patients with retained choledochal calculi by decreasing ampullary resistance. The ineffectiveness and hazards of previously utilized agents is discussed.
Original language | English |
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Pages (from-to) | 321-326 |
Number of pages | 6 |
Journal | Digestive Diseases and Sciences |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1971 |
Externally published | Yes |