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The Journal of Thoracic and Cardiovascular Surgery, Vol 92, 310-312, Copyright © 1986 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
ER Burns, HH Billett, RW Frater and DA Sisto
To determine whether the preoperative bleeding time, the most reliable
indicator of in vivo platelet dysfunction, can prognosticate excessive
postoperative hemorrhage and, hence, the need for infusion of platelet
concentrations, we studied blood loss versus bleeding time in 43 patients
undergoing coronary bypass grafting. There was no correlation between
bleeding time and either fall in hemoglobin level (r = 0.04) or chest tube
drainage (r = 0.004). In addition, bleeding time did not correlate with the
number of units of platelet concentrate (r = 0.12) or packed red cells (r =
0.2) infused. The bleeding time, which has been recommended as an essential
screening test before all cardiopulmonary bypass procedures, need not be
performed as a preoperative screen in otherwise healthy patients with no
history of bleeding abnormalities and a normal coagulation profile.
ARTICLES
The preoperative bleeding time as a predictor of postoperative hemorrhage after cardiopulmonary bypass
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