CLINICS, cilt.81, sa.0, ss.1-6, 2026 (SCI-Expanded, Scopus)
Background: Pressure injuries (PIs) are common, preventable complications in intensive care units (ICUs) that increase morbidity, mortality, and healthcare costs. Alternating pressure air mattresses (APAMs) are proposed to reduce PI incidence, but real-world effectiveness data remain limited.
Objectives: To evaluate the impact of
APAM use on PI incidence, clinical outcomes, and cost-effectiveness in
critically ill ICU patients.
Methods: This retrospective cohort study
in a tertiary 10-bed ICU compared patients before and after APAM
implementation. Multivariate logistic regression identified independent PI risk
factors. A cost-effectiveness model was developed based on NNT and treatment costs.
Results: APAM use was associated with a
33% reduction in overall PI risk (RR 0.67; 95% CI 0.45–0.98) and an 84%
reduction in Stage III–IV ulcers (RR 0.16; 95% CI 0.05–0.53). The NNT was 23 to
prevent one PI, equating to an estimated net cost saving of approximately USD
121,750 over five years for a 10-bed ICU. Length of stay (LOS) and prolonged
mechanical ventilation were the strongest independent PI predictors, increasing
risk by 19% and 13% per day, respectively. APAMs’ protective effect was
attenuated in patients with prolonged LOS and ventilation. Sepsis and
respiratory failure increased PI risk in univariate analysis but lost
significance after adjustment, suggesting mediation by LOS and ventilation
duration. APAMs showed limited efficacy in septic patients, indicating the need
for multimodal prevention strategies.
Conclusions: APAMs significantly reduce
severe PI incidence and related treatment requirements in critically ill
patients, offering a cost-effective intervention for ICU pressure injury
prevention. Their benefit may be limited by factors such as prolonged
hospitalization and ventilation. Future adequately powered multicenter
randomized trials are warranted to validate these findings, particularly in
diabetic and septic subgroups.