Platelet Function Testing Using Sonoclot and TEG6s as a Platelet Transfusion Prediction Tool in Open Heart Surgery

• Published in: Curēus (Palo Alto, CA) CA), 2023-11, Vol.15 (11), p.e49131-e49131
• Main Authors: Sato, Tomoe, Edanaga, Mitsutaka, Yamakage, Michiaki, Harada, Ryo, Kawaharada, Nobuyoshi
• Format: Article
• Language: English
• Subjects: Anesthesiology; Anticoagulants; Blood & organ donations; Blood platelets; Blood products; Cardiac/Thoracic/Vascular Surgery; Heart surgery; Statistical analysis
• ISSN: 2168-8184; 2168-8184
• DOI: 10.7759/cureus.49131

Introduction The point-of-care test (POCT) is useful for blood coagulation management during cardiovascular surgery. Although thromboelastography (TEG6s) has been reported to have targeted benefits for blood transfusion in cardiac surgery, Sonoclot analysis has not yet been fully validated. In this study, we evaluated the accuracy of Sonoclot, especially platelet function (PF) as a platelet concentrate (PC) transfusion parameter, compared to TEG6s in cardiovascular surgery. Methods This single-center, prospective, randomised trial was conducted at a university hospital. Forty-two adult patients who underwent elective cardiac surgery requiring cardiopulmonary bypass were included in this study between 2017 and 2021. The participants were randomly assigned to the Sonoclot (S) or Sonoclot and TEG6s (ST) groups. The amount of intraoperative PC was determined according to the POCT parameter values at the time of protamine administration. In addition, we investigated the correlation between PF parameters of POCT and platelet count at the end of surgery. Results There was no statistically significant difference in the intraoperative PC volume between the two groups. The Sonoclot PF parameter, PF, was moderately correlated with platelet count at the end of surgery (r=0.5449, p=0.009), and the TEG6s PF parameter showed a strong correlation with platelet count at the end of surgery (r=0.7744, p