PROPHYLACTIC ANTIBIOTICS IN NASAL SURGERY - THE IMPACT OF SURGICAL TECHNIQUES ON TISSUE PENETRATION AND PHARMACOKINETICS

MICHELSON, A and WOLF, SR and RETTINGER, G and ZICHNER, M (1993) PROPHYLACTIC ANTIBIOTICS IN NASAL SURGERY - THE IMPACT OF SURGICAL TECHNIQUES ON TISSUE PENETRATION AND PHARMACOKINETICS. HNO, 41 (9). pp. 421-425. ISSN 0017-6192,

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Abstract

Prophylactic antibiotics (cefuroxime 1500 mg) were administered during induction of anesthesia to 34 patients undergoing nasal surgery. The infusion ended at the time of mucosa incision (mean infusion time: 22 min). A hemitransfixion incision was followed by elevation of the mucoperichondrium on both sides of the septum. The blood supply of the cartilage was thus diminished essentially. In the septal cartilage, the concentration of cefuroxime 68 min after the administrations of antibiotic was 28.1 mug/g; this concentration was 19.8 mug/g in the septal bone at 74 min. The mean peak plasma concentration was 158 mug/ml and the end half-life elimination time 77 min. High antibiotic concentrations in the cartilage resulted from passive diffusion through the septal mucosa and occurred at a mean time of 22 min. The time between the start of infusion at the induction of anesthesia and interruption of the septal blood supply by separating of the septum from overlying soft tissues was sufficient for developing high antibiotic concentrations. During nasal surgery the routine approach to the septum.had no influence on the efficacy of antimicrobial prophylaxis.

Item Type: Article
Uncontrolled Keywords: ; ANTIBIOTIC PROPHYLAXIS; NASAL SURGERY; PHARMACOKINETICS; CEFUROXIME
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:42
URI: https://pred.uni-regensburg.de/id/eprint/53799

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