Best evidence topic report. Peripheral pulses to exclude thoracic aortic dissection

Area of Science:

• Cardiology
• Vascular Surgery
• Emergency Medicine

Background:

• Dissecting thoracic aneurysm is a life-threatening condition often presenting with chest pain.
• Clinical examination, including pulse assessment, is a crucial initial diagnostic step.
• The diagnostic value of a normal pulse examination in excluding this condition remains debated.

Purpose of the Study:

• To determine if the absence of a clinical pulse deficit can reliably exclude dissecting thoracic aneurysm in patients presenting with chest pain.
• To synthesize the best available evidence on this diagnostic dilemma.

Main Methods:

• A targeted literature search was conducted to identify relevant studies.
• The review focused on a systematic literature review and subsequent relevant publications.
• Data extraction included study design, patient demographics, outcomes, and limitations.

Main Results:

• Three key papers provided the primary evidence for this review.
• Analysis of these papers aimed to establish the diagnostic accuracy of pulse deficit assessment.
• Tabulated data allowed for a detailed examination of study findings and weaknesses.

Conclusions:

• The absence of a pulse deficit is not sufficient to exclude dissecting thoracic aneurysm.
• Clinical suspicion should guide further diagnostic investigations regardless of pulse examination findings.
• This finding has significant implications for emergency department protocols and patient management.