[Prolonged contrast infusion echocardiography with hydrogen peroxide]

Area of Science:

• Cardiology
• Medical Imaging
• Echocardiography

Background:

• Contrast-enhanced echocardiography (C-echo-CG) is crucial for cardiac diagnostics.
• Short-term C-echo-CG has limitations in visualizing right heart structures.
• Prolonged imaging may enhance diagnostic accuracy.

Purpose of the Study:

• To introduce and evaluate a new method of prolonged C-echo-CG using hydroxypropyl (HP) solution.
• To assess the effectiveness and safety of this technique in patients with various cardiac conditions.

Main Methods:

• Intravenous administration of 0.3% HP solution for continuous right heart chamber contrast over 5-20 minutes.
• Application in 277 patients with conditions including innocent cardiac murmur, septal defects, and regurgitation.
• Combination with respiratory stress tests.

Main Results:

• The technique was successfully applied to a diverse patient cohort.
• Prolonged C-echo-CG with HP demonstrated effectiveness in continuous cardiac contrasting.
• The method proved simple, effective, and free of severe side effects.

Conclusions:

• Prolonged C-echo-CG with HP is a safe and effective imaging modality.
• This technique offers advantages over conventional short-term C-echo-CG for right heart assessment.
• It is a valuable tool for diagnosing a range of cardiac abnormalities.