covid
Buscar en
Revista Colombiana de Cardiología
Toda la web
Inicio Revista Colombiana de Cardiología Diferencias en la agregación plaquetaria de sangre coronaria y periférica de p...
Journal Information
Vol. 17. Issue 6.
Pages 255-264 (November - December 2010)
Share
Share
Download PDF
More article options
Vol. 17. Issue 6.
Pages 255-264 (November - December 2010)
Open Access
Diferencias en la agregación plaquetaria de sangre coronaria y periférica de pacientes con enfermedad coronaria. Implicaciones clínicas
Differences in platelet aggregation in coronary and peripheral blood of patients with coronary disease. Clinical implications
Visits
2865
Jaime Cabrales1,
Corresponding author
jcabrales@cardioinfantil.org

Correspondencia: Calle 163A # 13B - 60, Fundacion Cardioinfantil, primer piso, Hemodinamia, Bogotá, Colombia.
, Darío Echeverri1, Orlando Corzo1, Mauricio Pineda1
1 Fundación Cardioinfantil- Instituto de Cardiología, Bogotá, Colombia
This item has received

Under a Creative Commons license
Article information
Introducción

Los fenómenos trombóticos son más frecuentes en las coronarias y, al parecer, los cambios que produce la enfermedad aterosclerótica en la reología y en la superficie endotelial son los responsables de este fenómeno.

Objetivo

Cuantificar la diferencia en la agregación plaquetaria de sangre venosa coronaria y sangre venosa periférica en pacientes con enfermedad coronaria severa.

Metodología

Se seleccionaron pacientes mayores de treinta años, con enfermedad coronaria severa, de quienes se obtuvieron muestras de sangre periférica y del seno coronario, y se realizaron agregaciones plaquetarias por el método de absorbancia con ADP 10μmol, ácido araquidónico (AA), epinefrina (Epi) 300μmol y colágeno 10μg/mL.

Resultados

Se incluyeron en total 32 pacientes con edad promedio de 65±10 años, 22 hombres, 10 (31%) pacientes con enfermedad estable y 22 (69%) con inestable. La agregación plaquetaria en sangre del seno coronario fue mayor con todos los agonistas usados, así: ADP 61,8% vs. 53,4% (p=0,001), AA 15,1% vs. 13,8% (p=0,48), colágeno 72,6% vs. 69,2% (p=0,048) y Epi 58% vs. 51,6% (p=0,01). Los pacientes con enfermedad inestable muestran una mayor agregación con ADP en el seno coronario: 58,5% vs. 49,2% (p=0,001) y no hay diferencias en los inestables. La resistencia a la Aspirina fue similar (p=1), sin embargo la resistencia al clopidogrel fue mayor en el seno coronario: 56% vs. 48% (p=0,24).

Conclusión

Se describe la presencia de mayor agregación plaquetaria en el seno coronario de pacientes con enfermedad aterosclerótica, la cual es significativa para ADP, colágeno y epinefrina. Se sugiere la aparición de factores locales asociados con la enfermedad coronaria que aumentan la agregación plaquetaria. La agregación plaquetaria periférica no refleja el comportamiento local en pacientes con aterosclerosis coronaria.

Palabras clave:
agregometría plaquetaria
clopidogrel
antiagregantes
seno coronario
enfermedad coronaria
Introduction

Thrombotic events are more frequent in the coronary arteries and apparently the changes in rheology and endothelial surface produced by atheroesclerotic disease are responsible for this phenomenon.

Objective

Quantify the difference in platelet aggregation of coronary venous blood and peripheral venous blood in patients with severe coronary disease.

Methodology

We selected patients older than 30 years with severe coronary disease and obtained samples of peripheral and coronary sinus blood. Platelet aggregation was realized by the absorbance method with ADP 10μmol, arachidonic acid (AA), epinephrine (Epi) 300μmol and collagen 10μg/mL.

Results

We included a total of 32 patients with mean age 65±10 years. 22 were men; 10 patients (31%) had stable disease and 22 (69%) unstable disease. Platelet aggregation in coronary sinus blood was higher with all agonists used as follows: ADP 61.8% vs. 53.4% (p=0.001), AA 15.1% vs.13.8% (p=0.48), collagen 72.6% vs. 69.2% (p=0.048) and Epi 58% vs. 51.6% (p=0.01). Patients with unstable disease show increased aggregation with ADP in the coronary sinus 58.5% vs. 49.2% (p=0.001) and there are no differences in the unstable. Aspirin resistance was similar (p=1); however, clopidogrel resistance was higher in the coronary sinus 56% vs. 48% (p=0.24).

Conclusion

We describe the presence of higher platelet aggregation in the coronary sinus of patients with atheroesclerotic disease that is significant for ADP, collagen and epinephrine, and suggest the appearance of local factors associated with the coronary disease that increase platelet aggregation. Peripheral platelet aggregation doesn’t reflect the local behavior in patients with coronary atheroesclerosis.

Key words:
platelet aggregometry
clopidogrel
coronary sinus
coronary disease
Full text is only aviable in PDF
Bibliografía
[1.]
B. Furie, B.C. Furie.
Mechanisms of thrombus formation.
N Engl J Med, 359 (2008), pp. 938-949
[2.]
E. Boersma, N. Mercado, D. Poldermans, et al.
Acute myocardial infarction.
[3.]
V. Fuster.
Elucidation of the role of plaque instability and rupture in acute coronary events.
Am J Cardiol, 76 (1995), pp. 24C-33C
[4.]
G. Davi, C. Patrono.
Platelet activation and atherothrombosis.
N Engl J Med, 357 (2007), pp. 2482-2494
[5.]
G.K. Hansson.
Inflammation, atherosclerosis, and coronary artery disease.
N Engl J Med, 352 (2005), pp. 1685-1695
[6.]
D.D. Wagner, P.C. Burger.
Platelets in inflammation and thrombosis.
Arterioscler Thromb Vasc Biol, 23 (2003), pp. 2131-2137
[7.]
S.R. Mehta, S. Yusuf.
The Clopidogrel in Unstable angina to prevent Recurrent Events (CURE) trial programme; rationale, design and baseline characteristics including a meta-analysis of the effects of thienopyridines in vascular disease.
Eur Heart J, 21 (2000), pp. 2033-2041
[8.]
S.R. Steinhubl, P.B. Berger, E.J. Topol, et al.
Early and sustained dual oral antiplatelet therapy following percutaneous coronary intervention: a randomized controlled trial.
JAMA, 288 (2002), pp. 2411-2420
[9.]
D.L. Bhatt, K.A.A. Fox, W. Hacke, et al.
Clopidogrel and aspirin versus aspirin alone for the prevention of atherothrombotic events.
N Engl J Med, 354 (2006), pp. 1744-1746
[10.]
H.C. Diener, J. Bogousslavsky, H.J. Rupprecht, et al.
Aspirin and clopidogrel compared with clopidogrel alone after recent ischaemic stroke or transient ischaemic attack in high-risk patients (MATCH): randomised, double-blind, placebo-controlled trial.
[11.]
C. Gasperetti, S. Gonias, L. Gimple, E. Powers.
Platelet activation during coronary angioplasty in humans.
Circulation, 88 (1993), pp. 2728-2734
[12.]
M.J. Davies.
The pathophysiology of acute coronary syndromes.
Heart, 83 (2000), pp. 361-366
[13.]
S.D. Wiviott, E.M. Antman.
Clopidogrel resistance: a new chapter in a fast-moving story.
Circulation, 109 (2004), pp. 3064-3067
[14.]
N. Ajzenberg, P. Aubry, M.G. Huisse, et al.
Enhanced shear-induced platelet aggregation in patients who experience subacute stent thrombosis: a case-control study.
J Am Coll Cardiol, 45 (2005), pp. 1753-1756
[15.]
C. Serrano, R. Rocha, R. Ramírez, et al.
Platelet and leukocyte adhesion and activation in unstable angina and post-PTCA.
Int J Cardiol, 99 (2005), pp. 423-428
[16.]
P.T. Larsson, N.H. Wallen, P. Hjemdahl.
Norepinephrine-induced human platelet activation in vivo is only partly counteracted by aspirin.
Circulation, 89 (1994), pp. 1951-1957
[17.]
F. Alfonso, D.J. Angiolillo.
Platelet function assessment to predict outcomes after coronary interventions: hype or hope?.
J Am Coll Cardiol, 48 (2006), pp. 1751-1754
[18.]
H. Thiele, J. Friedenberger, G. Schuler, et al.
Intracoronary compared with intravenous bolus abciximab application in patients with ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention: the randomized Leipzig immediate percutaneous coronary intervention abciximab IV versus IC in ST-elevation myocardial infarction trial.
[19.]
W. Hochholzer, D. Trenk, H.P. Bestehorn, et al.
Impact of the degree of periinterventional platelet inhibition after loading with clopidogrel on early clinical outcome of elective coronary stent placement.
J Am Coll Cardiol, 48 (2006), pp. 1742-1750
[20.]
S.D. Wiviott, E.M. Antman.
Clopidogrel resistance: a new chapter in a fast-moving story.
Circulation, 109 (2004), pp. 3064-3067
[21.]
P.A. Gurbel, K.P. Bliden, U.S. Tantry, et al.
The relation of dosing to clopidogrel responsiveness and the incidence of high post-treatment platelet aggregation in patients undergoing coronary stenting.
J Am Coll Cardiol, 45 (2005), pp. 1392-1396
[22.]
I. Müller, F. Besta, C. Schulz, et al.
Effects of statins on platelet inhibition by a high loading dose of clopidogrel.
Circulation, 108 (2003), pp. 2195-2197
[23.]
P.A. Gurbel, L.C. Wei, T.S. Udaya.
Omeprazole: a possible new candidate influencing the antiplatelet effect of clopidogrel.
J Am Coll Cardiol, 51 (2008), pp. 261-263
[24.]
W.C. Lau, P.A. Gurbel, P.B. Watkins, et al.
Contribution of hepatic cytochrome P450 3A4 metabolic activity to the phenomenon of clopidogrel resistance.
Circulation, 109 (2004), pp. 166-171
Copyright © 2010. Sociedad Colombiana de Cardiología y Cirugía Cardiovascular
Download PDF
Article options