Good Platelets Gone Bad: The Effects of Trauma Patient Plasma on Healthy Platelet Aggregation.

Shock
Alexander T FieldsLucy Z Kornblith

Abstract

Altered postinjury platelet behavior is recognized in the pathophysiology of trauma-induced coagulopathy (TIC), but the mechanisms remain largely undefined. Studies suggest that soluble factors released by injury may inhibit signaling pathways and induce structural changes in circulating platelets. Given this, we sought to examine the impact of treating healthy platelets with plasma from injured patients. We hypothesized that healthy platelets treated ex-vivo with plasma from injured patients with shock would impair platelet aggregation, while treatment with plasma from injured patients with significant injury burden, but without shock, would enhance platelet aggregation. Plasma samples were isolated from injured patients (pretransfusion) and healthy donors at a Level I trauma center and stored at -80°C. Plasma samples from four separate patients in each of the following stratified clinical groups were used: mild injury/no shock (injury severity score [ISS] 2-15, base excess [BE]>-6), mild injury/with shock (ISS 2-15, BE≤-6), severe injury/no shock (ISS>25, BE>-6), severe injury/with shock (ISS>25, BE≤-6), minimal injury (ISS 0/1, BE>-6), and healthy. Platelets were isolated from three healthy adult males and were treated with ...Continue Reading

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Mar 29, 2020·The Journal of Trauma and Acute Care Surgery·Nichole E StarrLucy Zumwinkle Kornblith

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Citations

Apr 13, 2021·Military Medical Research·Jing-Chun SongUNKNOWN Chinese People’s Liberation Army Professional Committee of Critical Care Medicine and Chinese Society of Thrombosis, Hemosta
Jan 13, 2021·Shock·Linda E Sousse, Teresa A Zimmers
May 1, 2021·Nature Reviews. Disease Primers·Ernest E MooreAngela Sauaia
Jul 17, 2021·Transfusion·Jerry LeungChristian J Kastrup

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