TY - CHAP M1 - Book, Section TI - Thromboelastography A1 - Kowalczyk, John J. A2 - Hess, Philip E. A2 - Li, Yunping A2 - Kowalczyk, John J. A2 - Stiles, Justin K. PY - 2023 T2 - Obstetric Anesthesia: Quick References & Practical Guides AB - Viscoelastic testing allows for the rapid assessment of the hemostatic properties of whole blood, measuring clot formation, strength, and breakdown.1 The most common forms of viscoelastic testing commercially available include rotational thromboelastometry (ROTEM) and thromboelastography (TEG). These tests both evaluate hemostasis in a similar fashion and with a similar graphical result, although they contain slightly different proprietary terminology. TEG has traditionally been performed by combining whole blood with reagents in an oscillating cup with a suspended pin and associated torsion wire. The new TEG 6s is a cartridge-based system with four channels, piezoelectric actuator, and paired optical detection system.2 This cartridge-based system improves ease of use and intradevice reliability.3,4 Studies have shown that TEG/ROTEM can detect hypercoagulability of pregnancy, effects of heparin, patients at risk of thrombosis, and guide transfusion in postpartum hemorrhage.5 SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/29 UR - obgyn.mhmedical.com/content.aspx?aid=1199673703 ER -