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|Title:||Linezolid penetration into wound tissue of two diabetic patients before and after hyperbaric oxygen therapy|
Rebecca A. Keel
Kelly K. Johnson-Arbor
Larry A. Suecof
David P. Nicolau
Joseph L. Kuti
University of Connecticut
Connecticut Surgical Group
|Citation:||Undersea and Hyperbaric Medicine. Vol.38, No.1 (2011), 11-16|
|Abstract:||Objective: We describe linezolid tissue penetration in two diabetic patients with lower-extremity ulcers, measured by in vivo microdialysis, before and after hyperbaric oxygen (HBO 2 ) therapy. Methods: Each diabetic patient received a single orally administered dose of linezolid 600mg within one week of initiating an eight-week HBO 2 course for treatment of his or her Wagner Grade 3 lowerextremity wound. A microdialysis catheter was placed at the margin of the wound for collection of extracellular tissue fluid. Blood and tissue samples were collected hourly over the following 12 hours. After completion of HBO 2, each patient received a second dose of linezolid 600mg, the microdialysis catheter was reinserted in same location, and blood/tissue samples were recollected for comparison. Results: Patient 1 completed all eight weeks of HBO 2, while Patient 2 completed only five of eight weeks. Based on the 12-hour area under the curve ratio between extracellular tissue fluid and blood, linezolid penetration was 0.474 and 0.479 for Patients 1 and 2, respectively, at the beginning of HBO 2. After completing HBO 2, penetration improved in both patients to 0.950 and 0.757, respectively. Conclusion: Tissue concentrations of linezolid at the site of lower extremity ulcers improved following a course of HBO 2 in two patients with diabetes. © 2011 Undersea & Hyperbaric Medical Society, Inc.|
|Appears in Collections:||Scopus 2011-2015|
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