Postoperative bleeding is a common complication following cardiothoracic surgical procedures requiring cardiopulmonary bypass (CPB). Serious bleeding complications requiring the administration of blood products, hemostatic drugs, and even repeat surgery are associated with considerable morbidity, mortality, and resource consumption. Therapy with recombinant activated factor VII (rFVIIa) may be an effective treatment strategy for patients with refractory bleeding. We report the successful use of rFVIIa for the treatment of intractable postoperative bleeding following aortic aneurysm repair in two patients with Marfan syndrome. In both patients, surgical reexploration was avoided, and the patients' clinical status was stabilized after the administration of rFVIIa. In one patient, hemostasis was rapidly achieved within minutes, whereas hemostasis occurred gradually over several hours in the second patient. Including our personal experience with the two cases, the use of rFVIIa has been reported in 20 patients who required CPB for cardiothoracic surgical procedures. Hemostasis was achieved in all patients. In 14 patients (70%), rapid hemostasis was achieved following a single dose of rFVIIa (mean dose, 57 g/kg). In the remaining six patients, gradual hemostasis was achieved after a mean of 3.4 doses (mean cumulative dose, 225 g/kg). Two patients (10%) were believed to have experienced thromboembolic complications after the administration of rFVIIa (one was fatal), and, in another patient, intracoronary thrombosis was suspected but was not confirmed. In patients experiencing postoperative bleeding complications that are refractory to treatment with blood products, hemostatic agents, and/or repeat surgery, the use of rFVIIa may be considered.
(CHEST 2005; 127:1828 -1835)Key words: cardiopulmonary bypass; extracorporeal support; postoperative bleeding; recombinant activated factor VII Abbreviations: CPB ϭ cardiopulmonary bypass; rFVIIa ϭ recombinant activated factor VII P ostoperative bleeding is one of the most common complications following cardiopulmonary bypass (CPB) in patients undergoing cardiothoracic surgical procedures. Treatment strategies for postoperative bleeding include supportive care with volume resuscitation, the administration of blood products, pharmacologic intervention, and surgical reexploration. Massive hemorrhage requiring surgical reexploration occurs in about 6% of the patients and is associated with considerable morbidity and mortality. 1,2 Surgical reexploration due to excessive bleeding has been associated with a threefold to fourfold increase in mortality and with multiple morbidities, including renal failure, sepsis, atrial arrhythmias, prolonged mechanical ventilatory support, and increased length of hospital stay. 3 Thus, safe and effective strategies to prevent and treat postoperative bleeding are crucial.
Limitations of Currently Available Pharmacologic AgentsBlood products are often used to correct the anemia that ensues and to promote hemostasis. Fresh-frozen plasma, pooled platelet...