Hemorrhage related reexploration following open heart surgery: the impact of pre-operative and post-operative coagulation testing.
2002
Abstract Purpose: Our objective was to determine the association of pre-operative and post-operative coagulation testing abnormalities with the cause of post-operative bleeding requiring re-exploration following cardiac surgery. Methods: Retrospective chart review of post-operative bleeding and the incidence of re-exploration for hemorrhage in 2263 adult patients undergoing elective and emergency open heart surgery which included coronary artery bypass, valvular, and combined valve coronary procedures. Results: Eighty-two patients (3.6%) required re-exploration. Sixty-six percent had surgical bleeding; the remaining 34% were coagulopathic (no surgical site found). The pre-operative PT and ACT were significantly elevated in coagulopathic patients ( P P Conclusions: Pre-operative testing (ACT, PT) weakly correlated with post-operative coagulopathy. Post-operative coagulation abnormalities were identified with high risk ratios and good diagnostic accuracy when using testing cut-off values to assist in surgical decision making.
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