• Gary Sharp and Christopher J Young.
• Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.
• ANZ J Surg. 2019 Apr 1; 89 (4): 291-295.

BackgroundBleeding is a common occurrence in surgery. Point-of-care testing with viscoelastic (VE) assays such as thromboelastography (TEG) and rotational thromboelastometry (ROTEM) has become more common place. TEG and ROTEM have the potential to guide management of coagulopathy. Many healthcare professionals still rely upon standard laboratory tests (SLTs) to manage a bleeding patient. It was our aim to investigate the literature surrounding management of the surgically bleeding patient via VE assays.MethodsLiterature review of Embase, MEDLINE, PubMed and the Cochrane Library using 'TEG, ROTEM and surgery' search terms was conducted.ResultsThrough the literature search and reference lists reviewed by both authors, a total of 62 articles have been evaluated, 35 of these have been included in this review.ConclusionVE assays are used most commonly during orthotopic liver transplantation, trauma, postpartum haemorrhage and cardiac surgery. Although the evidence is not overwhelming, we have identified recurrent themes where VE assays seem to be beneficial. VE assay use, especially when incorporated into an algorithm, appears to reduce blood product administration which in turn reduces cost and potential adverse events. They are quicker than SLTs and they can detect hyperfibrinolysis, the hallmark of coagulopathy, via in vivo clot analyses which SLTs are unable to do. Ultimately more randomized controlled trials are required.© 2018 Royal Australasian College of Surgeons.

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