Per citar aquest document: http://ddd.uab.cat/record/113620
Prothrombotic profile in patients with vasospastic or non vasospastic angina and non significant coronary stenosis
Figueras Bellot, Jaume (Vall d'Hebron Hospitals. Unitat Coronària)
Monasterio Aspiri, Jasone (Vall d'Hebron Hospitals. Unitat Coronària)
Domingo, Enric (Vall d'Hebron Hospitals. Unitat Coronària)
Meneses Londoño, Beatriz E. (Vall d'Hebron Hospitals. Unitat Coronària)
Nieto Santa, Elsa (Vall d'Hebron Hospitals. Unitat Coronària)
Cortadellas Ángel, Josefa (Vall d'Hebron Hospitals. Unitat Coronària)
García Dorado, D. (Vall d'Hebron Hospitals. Unitat Coronària)

Data: 2011
Resum: Background: Patients with vasospastic (VA) or non vasospastic angina (NVA) without significant coronary stenosis have a reduced risk of infarction but is unclear whether or not this may be attributable to a lack of prothrombotic profile - similar to that present in patients with stable coronary artery disease (CAD). Methods: Plasma levels of von Willebrand factor, total and free tissue factor pathway inhibitor, plasminogen activator inhibitor-1, and fibrinogen were analyzed in 15 patients with stable VA and 23 with NVA, all with vasoconstrictive response to acetylcholine although with different severity. Results were compared with those of 20 age-matched controls and 10 patients with CAD. Results: Plasma levels of von Willebrand factor in patients with VA or NVA were higher than in controls (207 ± 62 and 203 ± 69% vs 121 ± 38%, p < 0. 001) and tended to be lower than in CAD patients (264 ± 65, p = 0. 145). They also presented higher total tissue factor pathway inhibitor (123 ± 18 and 111 ± 25 vs 88 ± 14, ng/ml p < 0. 001) and plasminogen activator inhibitor-1 levels than controls (51 ± 30 and 52 ± 31% vs 19 ± 9 ng/ml, p < 0. 001) and similar to CAD patients (134 ± 23 and 62 ± 31, respectively, ns). Moreover, free tissue factor pathway inhibitor plasma levels were lower than controls (18 ± 5 and 17 ± 5 vs 23 ± 8 ng/ml, p = 0. 002) and similar to CAD patients (14 ± 5, ns). Despite this prothrombotic condition none of VA or NVA patients presented a myocardial infarction during a 9 year follow-up, an observation also reported in larger series. Conclusions: During a stable phase of their disease, patients with VA or NVA present a prothrombotic profile that might eventually contribute to occurrence of myocardial infarction. The rarity of these events, however, may suggests that ill defined factors would protect these patients from coronary plaque rupture/fissure.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Publicat a: Thrombosis journal, Vol. 9, Núm. 10 (May 2011), p. 1-7

DOI: 10.1186/1477-9560-9-10


7 p, 318.6 KB

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