Medicina intensiva
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The incidence of pressure ulcers in the literature varies from 4.7% to 18.6%. In our study, we have aimed to identify the incidence and risk factors associated with the occurrence of pressure ulcers in critically ill patients. ⋯ The incidence of pressure ulcers in the study population is very high. The risk factors most often found are presence of infection, days of stay and high APACHE II score.
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To study the minimum assistance level during proportional assist ventilation (PAV) to decrease the work of breathing to physiological limits (0.6 j/l) and the relationship between breathing pattern changes and respiratory effort at different PAV levels. ⋯ In the group of patients studied, the increase in the PAV levels decreases work of breathing, without significantly changing the breathing pattern. Levels lower than 30% of PAV are associated to excessive work of breathing.