Bedside pulmonary angiography in the critically ill patient

Area of Science:

• Cardiology
• Radiology
• Critical Care Medicine

Background:

• Pulmonary angiography is crucial for diagnosing acute pulmonary embolism.
• Mobilizing critically ill patients for traditional angiography poses significant risks.
• Limited availability of specialized catheterization laboratories can hinder diagnosis.

Purpose of the Study:

• To present a simple, bedside technique for pulmonary angiography in critically ill patients.
• To demonstrate the utility of this method for diagnosing acute pulmonary embolism.
• To offer an alternative diagnostic approach where advanced facilities are unavailable.

Main Methods:

• Utilizing a central venous pressure catheter inserted into the right ventricle or main pulmonary artery.
• Performing manual contrast injection into the pulmonary vasculature.
• Employing a "penetrated" chest X-ray technique for visualization.

Main Results:

• Satisfactory visualization of the pulmonary vascular tree was achieved.
• The technique proved useful in establishing differential diagnosis for acute pulmonary embolism.
• Successful application in patients who could not be mobilized was demonstrated.

Conclusions:

• Bedside pulmonary angiography is feasible and effective in critically ill patients.
• This technique provides a valuable diagnostic tool for acute pulmonary embolism in resource-limited settings.
• It offers a safe and accessible alternative to conventional angiography for select patient populations.