Microbiology of Respiratory Cultures
There was a total of 102 MDRO positive cultures from the 74
participants. We found 75.7% (56/74) of our participants had an MDRO
from a tracheal aspirate culture. Methicillin-resistantStaphylococcus aureus (MRSA, n=36, 64%) and Pseudomonas
aeruginosa (n=8, 14%) were the most common MDROs within our population
(Table 2). The median time until first MDRO after tracheostomy was 207
days and 270 days from start of chronic ventilation. Abundant
(>25 PMNs/LPF) PMNs (n=24, 43%) was the most common PMN
Gram stain quantification identified for MDRO cultures.