Update on Cardiovascular Echo in Aortic Aneurysm and Dissection

Area of Science:

• Cardiovascular Imaging
• Diagnostic Ultrasound
• Emergency Medicine

Background:

• Aortic aneurysms and atherosclerosis are often asymptomatic, detected incidentally.
• Acute aortic dissection is a critical cardiovascular emergency requiring rapid diagnosis.
• Transthoracic echocardiography (TTE) is a standard tool for coronary artery disease assessment and aortic aneurysm screening.

Purpose of the Study:

• To explore the role of point-of-care ultrasound (POCUS) in the screening and primary diagnosis of acute aortic dissection.
• To evaluate the current utility of transesophageal echocardiography (TEE) in managing aortic dissection.

Main Methods:

• Review of current literature on echocardiographic modalities for aortic pathology.
• Discussion of the application of POCUS in emergency settings.
• Comparison of TTE, POCUS, and transesophageal echocardiography (TEE) for aortic dissection detection.

Main Results:

• TTE is useful for screening aortic aneurysms but has suboptimal accuracy for aortic dissection.
• POCUS presents a potential tool for bedside screening and primary diagnosis of acute aortic dissection.
• TEE's role has shifted towards intraoperative monitoring and specific patient populations (e.g., contrast allergy, renal issues).

Conclusions:

• POCUS is emerging as a valuable tool for the initial assessment of acute aortic dissection at the bedside.
• TEE remains important for detailed evaluation and intraoperative monitoring, especially in select patients.
• Echocardiographic techniques continue to evolve for improved diagnosis and management of aortic emergencies.