RT Journal Article SR Electronic T1 Plasma Exchange for Alveolar Hemorrhage in Antineutrophil Cytoplasmic Antibody–Associated Vasculitis: Reframing the Evidence Through Bayesian Analysis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.2026-0582 DO 10.3899/jrheum.2026-0582 A1 Uchida, Lisa A1 Jayne, David R.W. YR 2026 UL http://www.jrheum.org/content/early/2026/07/25/jrheum.2026-0582.abstract AB For the clinician managing a patient with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and worsening diffuse alveolar hemorrhage (DAH), the decision to initiate plasma exchange (PLEX) remains one of the most consequential and least supported in the field. This presentation has a high early mortality especially when there is hypoxia or a requirement for mechanical ventilation.