Vancomycin kinetics during continuous ambulatory peritoneal dialysis.
To establish therapeutic guidelines for vancomycin usage in patients receiving continuous ambulatory peritoneal dialysis (CAPD), we studied single-dose kinetics of vancomycin in CAPD patients. Vancomycin was studied after a 10-mg/kg dose was given intravenously (VAN-IV) or intraperitoneally (VAN-IP). VAN-IV provided a plasma concentration above 10 mg/l at 12 hr, with a t 1/2 of 81 hr. When VAN-IP was given, 65% was absorbed; peak plasma concentrations were only 6.3 mg/l, and t 1/2 was 66 hr. CAPD accounted for only 15% to 17% of total body clearance in both groups. The kinetic principle of superposition was used to predict plasma concentrations after repeated VAN-IP doses. A model with once-a-day dosing predicted that a loading dose of 30 mg/kg followed by 7 mg/kg would achieve steady-state plasma concentrations of 11 to 14.8 mg/l. Another model with vancomycin in each exchange predicted that a loading dose of 30 mg/kg followed by 1.5 mg/kg would provide plasma concentrations in excess of 10 mg/l at 180 hr. These data should be useful in vancomycin treatment of CAPD patients who have nonperitoneal gram-positive bacterial infections, as well as those who have peritonitis.
D000328:Adult; D006801:Humans; D007274:Injections, Intraperitoneal; D007275:Injections, Intravenous; D007700:Kinetics; D008875:Middle Aged; D010530:Peritoneal Dialysis / Q000009:adverse effects*; D010531:Peritoneal Dialysis, Continuous Ambulatory / Q000009:adverse effects*; D010538:Peritonitis / Q000188:drug therapy / Q000209:etiology; D014640:Vancomycin / Q000378:metabolism* / Q000627:therapeutic use
D014640:Vancomycin