High neutrophils and low lymphocytes percentages in bronchoalveolar lavage fuid are prognostic factors of higher in-hospital mortality in diffuse alveolar hemorrhage

Diffuse alveolar hemorrhage (DAH) is a syndrome resulting from bleeding in the microcirculation of the lung, with a poor prognosis. The study aim was to identify prognostic factors of DAH, especially bronchoalveolar lavage fluid (BALF) cell pattern.