Vancomycin is a glycopeptide antibiotic used to treat infection of resistant organisms such as meticillin-resistant staphylococcus aureus(MRSA). Vancomycin has narrow therapeutic level and toxicity is observed near therapeutic level, in this reason, v...
Vancomycin is a glycopeptide antibiotic used to treat infection of resistant organisms such as meticillin-resistant staphylococcus aureus(MRSA). Vancomycin has narrow therapeutic level and toxicity is observed near therapeutic level, in this reason, vancomycin is one of the major medicines covered by clinical pharmacokinetic consulting service(CPCS).
This study was designed to evaluate nephrotoxicity preventive effect and improvement of therapeutic effect of vancomycin CPCS in patients with acute pneumonia.
Subjects of this study are patients who received vancomycin more than 5days for acute pneumonia from December 2015 to september 2017 in Konyang University Hospital.
Total 91 patients(63 males, 28 females, average 71.07±13.70 years in age, average 192.92±7.99cm in height , average 55.52±10.90kg in weight, 52 ICU inpatients) were retrospectively reviewed. Subject patients were categorized two group, 44 patients who were received vancomycin CPCS belong to CPCS group and 47 patients who did not receive vancomycin CPCS belong to non-CPCS group.
Treatment effect was evaluated through C-reactive protein(CRP) and nephrotoxicity was judged on the basis of serum creatinine(SCr) values.
The number of patients with treatment failure was lower in patients undergoing CPCS(n=4(9.09%) and 10(21.27%) respectively; p=0.039). But The difference in treatment duration between the CPCS group and the non-CPCS group was 0.75 days, which was not statistically significant.(p=0.93)
The number of patients with acute kidney injury(AKI) was lower when the CPCS was conducted(n=15(37.50%) versus 22(52.38%); p=0.17), but the number of patients who discontinued vancomycin treatment due to AKI similar in two group.(n=5(12.50%) in CPCS group, n=4(9.50%) in non-CPCS group; p=0.47). And the number of patients with uncontrolled AKI(n=9(22.50%) versus n=13(30.95%); p=0.39) were smaller in CPCS group and the uncontrolled degree of those patients when the renal impairment occurred were smaller when CPCS was conducted. However, these results were not statistically significant.
The 30-day mortality rate was statistically significantly lower in the CPCS group.(n=6(13.64%) versus n=15(31.94%); p=0.038)
If CPCS prevents treatment failure or nephrotoxicity, it can reduce the patient charge of 174,550~1,985,130 won or 113,370~2,034,760 won respectively, and the shortening of the 0.75-day treatment period resulted in savings of 28,890~125,760 won per person.
In conclusion, vancomycin CPCS does not shorten the duration of treatment but prevents treatment failure and is effective in preventing nephrotoxicity. If CPCS prevents treatment failure and nephrotoxicity, the patient can save considerable medical costs.