Abstract:
BACKGROUND:To identify changes in cefoperazone/sulbactam penetration into cerebrospinal fluid (CSF) after craniotomy and to investigate preliminarily whether cefoperazone/sulbactam CSF concentration can reach therapeutic level when administered intravenously after neurosurgical operation. METHODS:Neurosurgical patients with an indwelling ventricular drainage pipe who received prophylactic cefoperazone/sulbactam for the treatment of intracranial infection were received a cefoperazone/sulbactam 2:1, 3.0-g infusion for 3 hours every 6 hours for 24 h. Venous blood and CSF specimens were collected to determine cefoperazone/sulbactam concentrations. RESULTS:The cefoperazone and sulbactam concentrations in serum were highest at the second hour (237.54 ± 336.72 mg/L and 66.52 ± 80.38 mg/L, respectively) and then decreased. The cefoperazone and sulbactam concentrations in CSF were highest at the 4th hour (39.22 ± 75.55 mg/L and 6.24 ± 8.35 mg/L, respectively) and then decreased. CSF penetration measured by the ratio of peak concentrations (CSF/serum) was 8.6% ± 7.2% for cefoperazone and 13.5% ± 11.9% for sulbactam, CSF penetration measured by the ratio of trough concentrations (CSF/serum) was 13.4% ± 5.3% for cefoperazone and 106.5% ± 87.5% for sulbactam. CSF penetration represented by the ratio of area under the curve (AUC) of CSF and serum was 14.5% for cefoperazone and 22.6% for sulbactam. Neurosurgical impairment of the blood-brain barrier may improve the CSF penetration of these drugs, but it is difficult to reach the MIC90 of resistant bacteria. If single intravenous administration time was extended to 3 hours, the serum concentrations of drugs were able to meet the PK/PD standard (T> MIC%> 50%) for treating common, highly resistant bacteria. CONCLUSIONS:The CSF penetration of cefoperazone/sulbactam may be enhanced after neurosurgical impairment of the blood-brain barrier. This study is a pilot research of cefoperazone/sulbactam using in neurosurgical individuals, However, it needs to be confirmed by further large-scale studies.
journal_name
BMC Anesthesioljournal_title
BMC anesthesiologyauthors
Wang Q,Wu Y,Chen B,Zhou Jdoi
10.1186/s12871-015-0012-1subject
Has Abstractpub_date
2015-03-13 00:00:00pages
33issn
1471-2253pii
12journal_volume
15pub_type
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