Platelet activation and aggregation after aneurysmal subarachnoid hemorrhage

BMC Neurology

Table 2 Activation and aggregation tests in aSAH at early days, and in POSTOP patients. The values are presented as median (25th;75th percentiles)

	aSAH		POSTOP		P-value	Standard values
GpIIbIIIa expression (nb of sites)
Basal GpIIbIIIa	16,618	[14,174;18,246]	18,267	[16,321;19,114]	0.66	NA
ADP GpIIbIIIa	30,702	[29,347;33,832]	29,547	[28,147;32,665]	0.51	NA
TRAP GpIIbIIIa	30,062	[27,375;31,713]	33,381	[30,316;33,504]	0.44	NA
P-selectin expression (% of cells)
Basal P-selectin	6	[4;8.5]	4.5	[3.2;5.8]	0.65	< 5
ADP P-selectin	82	[62;83]	77	[71;77]	0.48	[60;70]
TRAP P-selectin	90	[89;93]	93.5	[91.5;94.8]	0.14	> 75
Index VASP (%)	84	[72;85]	83	[79;91]		> 50
Aggregation (%)
ADP aggregation	29	[22;46]	80	[79;90]	0.14	[14;25]
AA aggregation	82	[76;86]	95	[72;101]	0.39	[85;96]

aSAH aneurysmal subarachnoid hemorrhage, ADP adenosine diphosphate, AA arachidonic acid, POSTOP postoperative patients, TRAP thrombin receptor activated peptide, VASP Vasodilator-stimulated phosphoprotein, NA not available

ISSN: 1471-2377