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Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice
Published on: September 30, 2021
Efficacy of recombinant activated factor VII in unselected patients with uncontrolled haemorrhage: a single centre
Elspeth M Payne1, Stephen J Brett, Michael A Laffan
1Department of Haematology, Hammersmith Hospital, London, UK. Beth.payne@imperial.ac.uk
Abstract:
Recombinant activated factor VII (rFVIIa /Novoseven) has been used in a wide variety of circumstances as a treatment for uncontrolled bleeding. We present a retrospective report of the use of rFVIIa in 40 consecutive patients without inherited bleeding disorders in a single centre. Twenty-one (68%) of the 31 patients whose response to rFVIIa was documented showed a reduction or cessation in bleeding; in nine patients (29%) bleeding was unchanged and in one patient (3%) bleeding increased despite rFVIIa. One person suffered a thrombotic stroke after rFVIIa treatment. There were no other adverse events directly attributable to rFVIIa. Twenty-four patients (60%) died during the hospital admission in which the rFVIIa was administered. Twelve patients (30%) who received rFVIIa had bleeding secondary to haematological malignancy and 21 patients (53%) had bleeding complicating a surgical procedure. There were 11 deaths (92%) in the haematological malignancy group and 10 deaths (48%) in the surgical group. Patients with haematological malignancy received a significantly greater median number of doses of rFVIIa than patients with surgical bleeding complications (three versus one dose, P = 0.04). We conclude that rFVIIa can be used safely in uncontrolled haemorrhage and the majority of patients show a response.
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