Abstract:
BACKGROUND:D-dimer, a degradation product of fibrin, has been increasingly used as a marker or prognostic factor in various thrombotic diseases. OBJECTIVE:To assess the significance of a d-dimer test in patients with primary pulmonary hypertension (PPH). PATIENTS AND METHODS:Fourteen patients with PPH (12 women and 2 men) aged 25 to 68 years (mean +/- SD age, 50 +/- 14 years) entered the study. Plasma d-dimer was determined by Miniquant assay (Biopool International; Venture, CA) 3 +/- 5 months after the disease onset, and patients were followed up for 1 year. We compared the d-dimer levels to the demographic, clinical, and hemodynamic data of the patients. RESULTS:D-dimer levels were positively correlated with New York Heart Association classification (r = 0.59, p = 0.01) and pulmonary artery pressure (r = 0.43, p = 0.03) and were negatively correlated with oxygen saturation (r = - 0.45, p = 0.03) and 6-min walk distance (r = - 0.49, p = 0.04). One-year survival was also negatively correlated with d-dimer (point-biserial r = - 0.71, p = 0.004), with a higher d-dimer value associated with poorer survival. No significant correlations were found between d-dimer values and sex, age, diffusing capacity of the lung for carbon monoxide, or cardiac index. CONCLUSION:D-dimer levels may have a role in the evaluation of patients with PPH. This simple, noninvasive test may be helpful for identifying patients who are at a higher risk for severe disease.
journal_name
Chestjournal_title
Chestauthors
Shitrit D,Bendayan D,Bar-Gil-Shitrit A,Huerta M,Rudensky B,Fink G,Kramer MRdoi
10.1378/chest.122.5.1674subject
Has Abstractpub_date
2002-11-01 00:00:00pages
1674-8issue
5eissn
0012-3692issn
1931-3543pii
S0012-3692(15)49957-Xjournal_volume
122pub_type
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