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  • Title: [Sonographic study of gallbladder function: exogenous or endogenous stimulation?].
    Author: Glasbrenner B, Malfertheiner P, Pieramico O, Klatt S, Ditschuneit H.
    Journal: Ultraschall Med; 1991 Aug; 12(4):172-5. PubMed ID: 1957151.
    Abstract:
    Eleven patients (8 male, 3 female, age 21-53 years) with dyspeptic symptoms and no gastrointestinal organic diseases were studied for their gallbladder contractile function. A comparative sonographic study of gallbladder contraction was performed after exogenous and endogenous stimulation. On day 1, ceruletide was infused at a dose of 2.5 ng/kg/min about 10 minutes. On day 2, a semi-liquid test meal of 1450 kJ (44 kJ% carbohydrates, 24 kJ% protein, 32 kJ% fat) was administered. Gallbladder volume was determined for 30 minutes before and 5, 10, 20, 30, 40, 60, 80, 100 and 120 minutes after both stimulations by means of realtime ultrasonography. Three diameters in two plains were measured for calculation of gallbladder volume. Following ceruletide, peak gallbladder contraction (range 7-48% of initial volume) was observed within 10 (n = 5) or 20 (n = 6) minutes. Following the test meal, peak gallbladder contraction ranged from 27-80% and was observed within 30 to 100 minutes. Variations in time and amount of peak gallbladder contraction does hardly allow to establish normal values. No significant correlation was found between both types of stimulation concerning peak gallbladder contraction or time to peak contraction. We conclude that for the assessment of gallbladder contractility, ceruletide infusion and determination of gallbladder volume after 20 minutes (upper range 48% of initial volume) is the most valuable procedure. Impaired gallbladder contractility can be diagnosed with certainty only after exogenous stimulation.
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