Figure 2
From: Assessment and management of pulmonary alveolar proteinosis in a reference center
PAP patients divided according to the number of WLLs received. Twenty-nine patients were never submitted to WLL, whereas 44 were lavaged at least once. PAP patients requiring an additional WLL within 30 days from the previous one (3/31), were considered to be submitted to a single WLL. In patients requiring multiple WLLs, the mean (± SD) interval between two consecutive WLLs was 15.7 (±13.7) months.