. Continuous bedside pressure mapping in a general intensive care unit: a prospective observational study.
Introduction: A continuous bedside pressure mapping device (PMD) can provide real-time feedback of ideal body position to allow off-loading of high-pressure areas to prevent pressure ulcers development.
Objective: To describe the implementation of a PMD to measure tissue interface pressure (PIT) in Intensive Care (ICU) patients.
Methods: Prospective observational study in ICU critically ill mechanically ventilated adults, in an Italian University Hospital. Subjects were enrolled in the first 24 hours after ICU admission. A pressure mapping system (M.A.P. System TM) was used and 3 measurements of PIT with patient in supine position, every 6 hours after admission, were performed. The following anti-decubitus surfaces were used: Duo2® - Hill-Rom, Proficare®, Nimbus 3® or Therakair Visio® - Arjohuntleigh, Getinge Group.
Results: 27 patients (8 females) were enrolled; average Body Mass Index 27±6 (range: 16-43); 4 patients (14%) were diabetic. The average pressure of the 1215 areas analyzed was 26.7±19.6 mmHg (range: 3-78); the region with the highest contact pressure was the dorsal region (average: 48.7±12.5 mmHg), followed by the occipital (44.7±19.6 mmHg), and sacrum (44.7±10.7 mmHg). The three anti-decubitus surfaces showed different performances in the distribution of PITs, with statistically significant differences for the following factors: body weight (p = 0.017), patient height (p = 0.034), with increased pressures in taller patients, and higher BMI (p <0.0001).
Conclusions: Mean values of PIT were above critical levels, especially in the dorsal, occipital and sacrum region.