How are bleeding assessment tools (BATs) used in the evaluation for von Willebrand disease (vWD)?

Updated: Dec 30, 2019
  • Author: Eleanor S Pollak, MD; Chief Editor: Srikanth Nagalla, MBBS, MS, FACP  more...
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Bleeding assessment tools (BATs) have been developed to allow clinicians to objectively assess bleeding symptoms in patients with vWD. BAT scores may also help predict bleeding risk in patients with vWD. [16, 17] The International Society on Thrombosis and Haemostasis (ISTH) developed and endorsed a single BAT (ISTH-BAT), to standardize reporting of bleeding symptoms for use in adult and pediatric populations. [18, 16] BATs should always be complemented by coagulation screening tests. [16]

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