Most importantly, it can reduce the overall transfusion of all blood products. Our approach conflicts with traditional resuscitation strategies which emphasise increased transfusion of RBC units and crystalloid to maintain blood pressure and oxygen delivery. However, since neither RBCs nor crystalloid contain procoagulant factors this practice dilutes the concentration #inhibitor Vandetanib keyword# of clotting factors and impairs fibrinogen polymerisation, therefore
contributing to the development of coagulopathy. In contrast FFP contains approximately 400 mg of fibrinogen, the final sellectchem effector in the clotting system shown to decrease early in patients with haemorrhage (19-21). FFP also has the additional benefit of acting as a buffer, potentially improving the acid base status of patients who are already acidotic. This is in contrast to the use of crystalloids that are acidic Inhibitors,research,lifescience,medical in nature and proinflammatory (22-24). Aggressive anaesthetic strategy in other surgical procedures Previous studies on liver transplantation
and cardiac surgery identified little or no reduction in blood loss with early administration of FFP (25). However, there has been a recent upsurge of interest re-examining the role of FFP in trauma surgery. In 2003, Hirshberg et al. used mathematical Inhibitors,research,lifescience,medical modelling to simulate the dilutional component of coagulopathy in haemorrhagic trauma patients. They concluded that existing resuscitation
strategies Inhibitors,research,lifescience,medical severely underestimated the dilution of coagulation factors and recommended giving FFP concurrently with the first units of blood when the surgeon anticipates severe haemorrhage to prevent the exponential Inhibitors,research,lifescience,medical dilution of coagulation factors (26). Several subsequent studies on trauma patients have supported the increased use of plasma early in the course of surgery in patients expected to require massive transfusion (27-31). Though CRS is performed as an elective procedure it is a massive undertaking especially in patients with high volume disease. Patients are exposed to massive fluid shifts, electrolyte imbalances in addition to blood loss. Therefore, in the absence of an aggressive Carfilzomib anaesthetic approach coagulopathy is extremely likely to develop. Limitations of this study It is possible that the reduced transfusion of all blood products over time reflects a general improvement in surgical technique as part of the “learning curve”, that is improved outcomes secondary to increased familiarisation and experience with surgery. Unfortunately, this is difficult to assess. Another potentially confounding factor is the adoption of new surgical technology over the 13 year study period. This could have reduced bleeding and diluted the observed results.
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