Lung tissue concentrations of cefoperazone

Area of Science:

• Pharmacokinetics
• Thoracic Surgery
• Infectious Disease

Background:

• Antibiotic prophylaxis is crucial in preventing surgical site infections.
• Cefoperazone is a cephalosporin antibiotic with broad-spectrum activity.
• Understanding drug distribution in target tissues is essential for optimizing therapeutic efficacy.

Purpose of the Study:

• To determine lung tissue concentrations of cefoperazone following a single intravenous dose.
• To compare lung tissue concentrations with concurrent serum levels.
• To evaluate the suitability of cefoperazone for perioperative prophylaxis in lung surgery.

Main Methods:

• Twenty patients undergoing lung surgery received a single 2g dose of cefoperazone.
• Lung tissue concentrations were measured at one and two hours post-administration.
• Serum levels were measured in parallel using high-pressure liquid chromatography (HPLC).

Main Results:

• Mean lung tissue concentrations were 45.3-113.3 mg/kg at one hour and 20.5-68.1 mg/kg at two hours.
• HPLC analysis confirmed rapid and sustained cefoperazone presence in lung tissue.
• Drug concentrations in lung tissue exceeded those typically required for antibacterial activity.

Conclusions:

• Cefoperazone achieves significant and persistent concentrations within lung tissue.
• The pharmacokinetic profile supports the use of cefoperazone for perioperative prophylaxis in thoracic procedures.
• Cefoperazone is a viable option for reducing infection risk in lung surgery patients.