What Echocardiographic Findings Suggest Acute Type A Aortic Dissection?

Area of Science:

• Emergency Medicine
• Cardiovascular Imaging
• Aortic Diseases

Background:

• Acute Stanford Type A aortic dissection (ATAAD) has high mortality, increasing with diagnostic delays.
• Misdiagnosis and time-consuming definitive imaging (CTA) hinder timely intervention.
• Point-of-care ultrasound (POCUS) offers a rapid diagnostic alternative for unstable patients.

Purpose of the Study:

• To review four echocardiographic findings suggestive of ATAAD.
• To describe the pathophysiology and diagnostic utility of these findings.
• To provide practical guidance for bedside application.

Main Methods:

• Narrative review of literature on echocardiographic findings in ATAAD.
• Inclusion of high-quality media for procedural guidance.
• Focus on diagnostic utility and clinical application.

Main Results:

• Four key echocardiographic findings suggest ATAAD: aortic intimal flap, aortic root enlargement, aortic regurgitation, and pericardial effusion.
• Cardiac POCUS can strongly suggest or rule in ATAAD.
• Absence of findings may decrease suspicion but does not rule out ATAAD.

Conclusions:

• Cardiac POCUS is valuable for suggesting ATAAD in emergency settings.
• POCUS findings can expedite further diagnostic workup and treatment.
• It complements, but does not replace, definitive imaging for ruling out ATAAD.