Eficácia do Decúbito Dorsal, Lateral e Ventral na redução da pressão nas proeminências ósseas: ensaio clínico

Abstract

Object of study: To identify the effectiveness of the supine, lateral, and prone positions in reducing pressure on bony prominences. Method: Phase I of a clinical, factorial, non-randomized experimental study. The unit of analysis was body positioning, with three interventions: supine, prone, and lateral. The outcome (interface pressure) was measured using the SR Soft Vision® sensor. Results: A total of 448 evaluations were conducted for each position. The mean pressure in the supine position was 652.3 mmHg (95% CI: 592.9–711.7), in the lateral position 1,522.2 mmHg (95% CI: 1,423.0–1,621.4), and in the prone position 313.2 mmHg (95% CI: 275.2– 351.3). When stratified by sex (p < 0.001), the mean pressure in the supine position for females was 540.08 mmHg (95% CI: 470.4–611.2), lateral 1,200.9 mmHg (95% CI: 1,079.2–1,322.6), and prone 169.2 mmHg (95% CI: 138.7–199.6). For males, the mean pressure in the supine position was 761.3 mmHg (95% CI: 667.8–854.9), lateral 1,842.0 mmHg (95% CI: 1,696.5–1,987.6), and prone 455.3 mmHg (95% CI: 390.9–519.7). When stratified by weight, the differences between positions showed p-values < 0.001, with lower pressure levels in the prone position and higher levels in the lateral position across all four weight categories. Conclusion: The lateral position exhibited the highest pressure. Repositioning protocols are essential. Brazilian Clinical Trials Registry: RBR-9vsvkn5.