Q: What advantage plasma exchange provides in acute exacerbation of Wegner's Granulomatosis?

Answer: It does not improve mortality but may rescue renal failure

Reference:

1.Klemmer PJ, Chalermskulrat W, Reif MS, et al. Plasmapheresis therapy for diffuse alveolar hemorrhage in patients with small-vessel vasculitis. Am J Kidney Dis 2003;42:1149–1153.

2.Nguyen T, Martin MK, Indrikovs AJ. Plasmapheresis for diffuse alveolar hemorrhage in a patient with Wegener's granulomatosis: case report and review of the literature. J Clin Apher 2005;20:230–234.