Fibrinogen plasma concentration is an independent marker of haemodynamic impairment in chronic thromboembolic pulmonary hypertension.
Fibrinogen has a crucial role in both inflammation and coagulation, two processes pivotal for the pathogenesis of pulmonary hypertension. We therefore aimed to investigate whether fibrinogen plasma concentrations a) are elevated in pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) and b) may serve as a novel biomarker for haemodynamic impairment. In a dual-centre, retrospective analysis including 112 patients with PAH (n = 52), CTEPH (n = 49) and a control cohort of patients with suspected PAH ruled out by right heart catheterisation (n = 11), we found fibrinogen plasma concentrations to be increased in patients with PAH (4.1 ± 1.4 g/l) and CTEPH (4.3 ± 1.2 g/l) compared to control patients (3.4 ± 0.5 g/l, p = 0.0035 and p = 0.0004, respectively). In CTEPH patients but not in PAH patients fibrinogen was associated with haemodynamics (p < 0.036) and functional parameters (p < 0.041). Furthermore, fibrinogen was linked to disease severity (WHO functional class, p = 0.017) and independently predicted haemodynamic impairment specifically in CTEPH (p < 0.016). Therefore, fibrinogen seems to represent an important factor in CTEPH pathophysiology and may have the potential to guide clinical diagnosis and therapy.
1] Centre for Pulmonary Hypertension [2] II. Department of Internal Medicine [3] [4].
Jan K
JK
Hennigs
1] Centre for Pulmonary Hypertension [2] II. Department of Internal Medicine [3].
Hans Jörg
HJ
Baumann
1] Centre for Pulmonary Hypertension [2] Institute of Clinical Pharmacology and Toxicology and Cardiovascular Research Centre [3].
Nicole
N
Lüneburg
II. Department of Internal Medicine.
Gesine
G
Quast
1] Centre for Pulmonary Hypertension [2] II. Department of Internal Medicine.
Lars
L
Harbaum
II. Department of Internal Medicine.
Jan
J
Heyckendorf
1] Centre for Pulmonary Hypertension [2] Department of General and Interventional Cardiology, Hamburg University Heart Centre, University Medical Centre Hamburg - Eppendorf, Hamburg, Germany.
Karsten
K
Sydow
I. Department of Internal Medicine, Carl Gustav Carus University Hospital, Dresden, Germany.
Bernhard
B
Schulte-Hubbert
I. Department of Internal Medicine, Carl Gustav Carus University Hospital, Dresden, Germany.
Michael
M
Halank
1] Centre for Pulmonary Hypertension [2] II. Department of Internal Medicine.
Hans
H
Klose
D000368:Aged; D015415:Biomarkers; D002908:Chronic Disease; D005260:Female; D005340:Fibrinogen; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D006976:Hypertension, Pulmonary / Q000097:blood* / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012372:ROC Curve; D012189:Retrospective Studies; D012307:Risk Factors
D015415:Biomarkers; D005340:Fibrinogen