This study from the UK’s Health and Technology Assessment group looked at all the available evidence on clinical effectiveness and cost-effectiveness of the available devices for viscoelastic testing of clotting issues in clinical scenarios.

There was more extensive evidence on the use of viscoelastic testing in cardiac surgery, and the reviewers support its use in this clinical setting. Other areas such as postpartum haemorrhage and trauma had less support due to the paucity of RCT evidence. The authors advocate further trials in these areas.

The ROTEM and TEG devices seemed very similar and effective in providing consistent data to the user but there was less available evidence for Sonoclot.

– Dafydd Thomas