Abstract
Traditional coagulative parameters are of limited use in identifying perioperative coagulopathy occurring in patients undergoing major elective orthopedic surgery (MEOS). The aim of our study was to evaluate the coagulation changes in patients undergoing MEOS and to facilitate an early detection of perioperative coagulopathy in patients experiencing major intraoperative bleeding. We enrolled 40 consecutive patients (M/F 10/30, age range 34–90 years) who underwent MEOS at the Orthopedic Unit of the Padua University Hospital, Italy, between January 2014 and January 2015. Blood samples were obtained at the following time points: T0-pre: 30 min before surgery; T0-post: 30 min after the end of the procedure; T1: morning of the first postoperative day; T2: 7 ± 2 days after surgery. Patients who experienced an intraoperative blood loss ≥250 mL/h were considered as cases. Routine coagulative parameters, thromboelastometry and thrombin generation (TG) profiles were evaluated. At baseline, a significantly lower platelet count and FIBTEM MCF/AUC were observed in patents with excessive bleeding (p < 0.05 and 0.02/0.01, respectively). At T0-post and T1 intervals, cases showed hypocoagulation characterized by a significantly low platelet count (p = 0.001), prolonged CFT INTEM/EXTEM, reduction of alpha-angle and MaxV INTEM/EXTEM, MCF and AUC INTEM/EXTEM/FIBTEM (p < 0.05 in all comparisons). The only TG parameter standing out between study groups was time to peak at T0-pre. A low platelet count and fibrinogen activity were associated with significant intraoperative bleeding in patients undergoing MEOS. Thromboelastometry performed by ROTEM® identifies patients with coagulopathy.
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Luca Spiezia, Francesco Vasques, Astrid Behr, Elena Campello, Sara Maggiolo, Antonio Berizzi, Sabrina Gavasso, Fausto Biancari and Paolo Simioni have no conflict of interest. Barry Woodhams (BW) acts as a consultant, via HaemaCon, for Diagnostica Stago.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the author.
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L. Spiezia and F. Vasques equally contributed to this paper.
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Spiezia, L., Vasques, F., Behr, A. et al. Perioperative coagulation assessment of patients undergoing major elective orthopedic surgery. Intern Emerg Med 11, 793–801 (2016). https://doi.org/10.1007/s11739-016-1414-x
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DOI: https://doi.org/10.1007/s11739-016-1414-x