Abstract:
STUDY OBJECTIVE:Laboratory testing plays a minor role in the assessment of aortic dissection. Its main value is in the exclusion of other diseases. Following an incidental observation, we systematically investigated the relationship between elevated d-dimer levels and acute aortic dissection. DESIGN:We prospectively tested d-dimer levels in patients with suspected acute aortic dissection (10 patients). In addition, we investigated 14 patients who had received a confirmed diagnosis of thoracic aortic dissection during the previous 5 years, in whom d-dimer testing had been performed for differential diagnosis. Thirty-five patients with acute chest pain of other origin served as a control group. SETTING:Tertiary referral hospital. PATIENTS:Twelve patients had type A dissection (Stanford classification), and 12 patients had type B. MEASUREMENTS AND RESULTS:A d-dimer analysis was performed (Tina-quant assay; Roche Diagnostics; Mannheim, Germany) [normal limit of the assay, 0.5 micro g/mL]. The result of the d-dimer test was positive (ie, > 0.5 micro g/mL) in all patients (sensitivity of the test, 100%) with a mean value of 9.4 micro g/mL and a range of 0.63 to 54.7 micro g/mL. The degree of the elevation was correlated to the delay from the onset of symptoms to laboratory testing (mean, 12.6 h; range, 1 to 120 h) and showed a trend to the extent of the dissection, but not to the outcome (14 patients could be discharged; 10 patients died). CONCLUSIONS:Based on our observation, we suggest that testing for d-dimer should be part of the initial assessment of patients with chest pain, especially if aortic dissection is suspected. A negative test result makes the presence of the disease unlikely.
journal_name
Chestjournal_title
Chestauthors
Weber T,Högler S,Auer J,Berent R,Lassnig E,Kvas E,Eber Bdoi
10.1378/chest.123.5.1375subject
Has Abstractpub_date
2003-05-01 00:00:00pages
1375-8issue
5eissn
0012-3692issn
1931-3543pii
S0012-3692(15)33665-5journal_volume
123pub_type
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