title: Effect of caerulein in patients with biliary colic pain.
abstract: A randomized placebo-controlled double-blind trial was carried out in 24 patients with biliary colic pain in order to evaluate the analgesic effect of caerulein (CRL). Caerulein (1 ng/kg . min infused intravenously over 15 min) showed an analgesic effect that was significantly higher than placebo (p less than 0.001). The analgesic action of CRL was not inhibited by naloxone (0.4 mg intravenously, administered two times). Further, the effect of i.v. CRL or saline on artificially induced biliary tree hypertension was studied in 7 patients with a T-tube common bile duct drainage. During saline intravenous administration, increasing biliary tree pressure resulted in pain in 5 patients, with the threshold for pain being 40 cmH2O. During CRL intravenous infusion, significantly higher perfusion pressures were required to achieve a given common bile duct pressure and the pressure threshold for pain was not reached. Consequently, pain was prevented in all patients. These data suggest that CRL relieves biliary colic pain by reducing biliary tract pressure.
mesh_terms: D000328:Adult; D001652:Bile Ducts / Q000187:drug effects; D001660:Biliary Tract Diseases / Q000188:drug therapy*; D002108:Ceruletide / Q000037:antagonists & inhibitors / Q000627:therapeutic use*; D002769:Cholelithiasis / Q000188:drug therapy; D002986:Clinical Trials as Topic; D003085:Colic / Q000188:drug therapy*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral; D008297:Male; D008875:Middle Aged; D009270:Naloxone / Q000627:therapeutic use; D011312:Pressure; D011897:Random Allocation; D013997:Time Factors
chemical_list: D009270:Naloxone; D002108:Ceruletide