Abstract
The concentrations of amikacin and kanamycin were determined in the serum, gallbladder bile, and gallbladder wall of 20 patients undergoing elective cholecystectomy. Of 20 patients, 14 received 500 mg of amikacin intramuscularly and 6 received 500 mg of kanamycin intramuscularly at various times before surgery. In patients receiving kanamycin, detectable levels appeared in bile within 90 min after drug administration, and in five of six patients concentrations ranged from 1.9 to 23 micrograms/ml. Levels of kanamycin in gallbladder wall ranged from 8.0 to 14 micrograms/g. In patients receiving amikacin, detectable levels appeared in bile within 48 min after drug administration and ranged from 1.3 to 7.5 micrograms/ml in 12 of 14 patients. Levels of amikacin in gallbladder wall ranged from 4.7 to 34 micrograms/g. The presence of an obstructed cystic duct did not preclude the entry of either antibiotic into gallbladder bile, and this may reflect passage of antibiotic through the gallbladder wall rather than accumulation via bile secretion.
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Selected References
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