How should we measure platelet count before central neuraxial blockade in parturients with thrombocytopenia?

Abstract

Patients with low platelet counts are a concern to the obstetric anaesthetist as, although rare, there is a risk of a spinal epidural haematoma following central neuraxial blockade. Although conventional plasma-based tests are frequently used to guide central neuraxial blockade in patients with thrombocytopenia, interest in the use of viscoelastic haemostatic assays is increasing.