Evaluating D-dimer and Fibrinogen Levels for Diagnosing Aortic Dissection

Diagnostic Value of D-dimer/Fibrinogen Ratio in Patients With Acute Aortic Dissection

Observational Dr. Lutfi Kirdar Kartal Training and Research Hospital · NCT04251247

This study is testing if measuring the D-dimer and fibrinogen levels can help doctors diagnose aortic dissection more accurately in patients who might have it.

Quick facts

Study typeObservational
Enrollment159 (estimated)
Ages18 Years and up
SexAll
SponsorDr. Lutfi Kirdar Kartal Training and Research Hospital Government
Locations2 sites (Istanbul and 1 other locations)
Trial IDNCT04251247 on ClinicalTrials.gov

What this trial studies

This observational study investigates the diagnostic value of the D-dimer/fibrinogen ratio in patients diagnosed with acute aortic dissection and acute pulmonary embolism. Given the rarity and life-threatening nature of acute aortic dissection, timely and accurate diagnosis is critical. The study aims to determine if the D-dimer/fibrinogen ratio can enhance diagnostic accuracy for these conditions. Participants will be assessed based on their D-dimer and fibrinogen levels to evaluate the effectiveness of this diagnostic approach.

Who should consider this trial

Good fit: Ideal candidates include individuals diagnosed with acute aortic dissection, acute pulmonary embolism, or non-cardiac chest pain.

Not a fit: Patients with chest pain due to other etiologies unrelated to acute aortic dissection or acute pulmonary embolism may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic methods for acute aortic dissection, potentially saving lives through earlier detection.

How similar studies have performed: While the use of D-dimer in diagnosing aortic dissection has been explored, the specific approach of using the D-dimer/fibrinogen ratio is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of acute aortic dissection
* Diagnosis of acute pulmonary embolism
* Diagnosis of non-cardiac chest pain

Exclusion Criteria:

* Any etiology of chest pain other than acute aortic dissection, acute pulmonary embolism, or non-cardiac chest pain
* Participants who do not give consent for enrollment

Where this trial is running

Istanbul and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Aortic DissectionPulmonary Embolism
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.