Clinical Study

The Platelet Function Analyzer (PFA-100) as a Screening Tool in Neurosurgery

Table 2

Patients laboratory baseline characteristics.

ParameterNon-PFA groupPFA group 𝑃 value

Platelets [/nl]257 (64)254 (80)0.72
Preoperative Hb [g/L]144 (13.7)143 (16.5)0.72
 Male149 (12.2)152 (13.8)0.19
 Female139 (13.4)136 (14.7)0.28
Prothrombin time [INR]0.99 (0.88–1.30)0.98 (0.81–1.30)0.19
aPTT [s]28 (22–57)28 (20–38)0.33
Fibrinogen [g/L]2.9 (1.0–8.0)2.9 (1.5–7.0)0.13
PFA-ADP [s] 99 (65–>300) 
PFA-Epi [s] n. a.*107 (62–>300) n. a.
Creatinine [mg/dL]0.83 (0.21)0.79 (0.21)0.22

*n. a.: not applicable.