CT evaluation of mediastinal infections

Area of Science:

• Radiology
• Thoracic Surgery
• Infectious Diseases

Background:

• Mediastinal infections are serious complications following thoracic procedures.
• Accurate diagnosis is crucial for effective treatment and improved patient outcomes.
• Computed tomography (CT) is a key imaging modality for evaluating thoracic sepsis.

Purpose of the Study:

• To evaluate the reliability of CT in diagnosing mediastinal infections.
• To compare CT findings in patients with mediastinal infections versus controls.
• To assess CT's ability to differentiate between diffuse mediastinitis and focal abscesses.

Main Methods:

• Retrospective review of CT scans from 104 patients evaluated for thoracic sepsis.
• Comparison of CT findings in 22 patients with confirmed mediastinal infections against seven controls.
• Classification of mediastinal infections based on CT appearance: diffuse mediastinitis, focal abscess, or associated infections.

Main Results:

• CT accurately differentiated diffuse mediastinitis from localized, drainable abscesses.
• In the absence of mediastinal gas, CT could not distinguish mediastinitis from benign postoperative changes.
• CT effectively identified associated complications like empyema and subphrenic abscesses, aiding in treatment planning.

Conclusions:

• CT is a valuable tool for diagnosing mediastinal infections and associated complications.
• CT's utility is limited in differentiating mediastinitis from benign changes without gas.
• Combined antibiotic therapy and drainage procedures showed success in treating complex mediastinal infections.