The effect of patient migration in bed on torso elevation

The 2020 Update on Pressure Injuries: A Review of the Literature

GENERAL PURPOSE

To provide an update on the epidemiology, pathophysiology, prevention, and patient preferences for care of pressure injuries (PIs).

TARGET AUDIENCE

This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care.

LEARNING OBJECTIVES/OUTCOMES

After participating in this continuing education activity, the participant will:1. Recognize the risks to ICU patients regarding PIs.2. Select evidence-based strategies that can help prevent PIs.3. Identify factors that can contribute to the development of PIs.4. Choose collaborative approaches when working with a patient who has a PI.

ABSTRACT

The literature on pressure injuries continues to expand at a rapid rate such that keeping current is a challenge for busy clinicians. In this article, the authors summarize six important articles related to pressure injuries published in 2020. The articles cover a range of topics including epidemiology, pathophysiology, prevention, and patient preferences for care. For each article, a description of the study results is provided along with a comment on why the results are important. This information should help clinicians incorporate these new data into their clinical practice.

The effects of hospital bed features on physical stresses on caregivers when repositioning patients in bed

Repositioning patients in bed is the most common patient handling activity and is associated with musculoskeletal disorders in caregivers. Hospital bed features may mitigate the risk of injury. The current study investigated the effect of bed features on the physical stress on caregivers. Ten nurses were recruited to perform three repositioning activities. Hand forces were recorded, and spine loading was estimated using a dynamic biomechanical model. Results demonstrated that except for the peak L5/S1 compressive load in the turning task, the use of assistive features significantly reduced the physical stresses for all repositioning activities. However, recommended thresholds for injury were still exceeded in many conditions. Compared with spinal load, hand force was much higher relative to the injury thresholds, suggesting a greater risk of shoulder and upper extremity injuries than low back injury. Mechanical lift equipment remains the safest and most robust way to reposition a patient.

How patient migration in bed affects the sacral soft tissue loading and thereby the risk for a hospital-acquired pressure injury

Head‐of‐bed (HOB) elevation is a common clinical practice in hospitals causing the patient's body to slide down in bed because of gravity. This migration effect likely results in tissue shearing between the sacrum and the support surface, which increases the risk for pressure injuries. StayInPlace (HillRom Inc.) is a commercial migration‐reduction technology (MRT) incorporated in intensive care bedframes. Yet, the effects of migration‐reduction on tissue shear stresses during HOB elevation are unknown. We analysed relationships between migration and resulting sacral soft tissue stresses by combining motion analysis and three‐dimensional finite element modelling of the buttocks. Migration data were collected for 10 subjects, lying supine on two bedframe types with and without MRT, and at HOB elevations of 45°/65°. Migration data were used as displacement boundary conditions for the modelling to calculate tissue stress exposures. Migration values for the conventional bed were 1.75‐ and 1.6‐times greater than those for the migration‐reduction bed, for elevations of 45° and 65°, respectively (P < .001). The modelling showed that the farther the migration, the greater the tissue stress exposures. Internal stresses were 1.8‐fold greater than respective skin stresses. Our results, based on the novel integrated experimental‐computational method, point to clear biomechanical benefits in minimising migration using MRT.

Human-Centered Design Process for a Hospital Bed: Promoting Patient Safety and Ease of Use

The modern hospital bed is a sophisticated medical device, and its users represent a diversity of abilities and needs. To develop a new bed, Hill-Rom studied these users in nearly 500 hr of observation across 29 hospital units. Focus groups were used to evaluate early concepts, and formative usability testing included over 130 users to evaluate design prototypes. This research and testing resulted in the development of the Centrella bed, which includes new features to address patient satisfaction, patient safety, and caregiver efficiency. The resulting design is the winner of the 2017 Stanley Caplan User Centered Design Award.

Stopping the Slide: How Hospital Bed Design Can Minimize Active and Passive Patient Migration

Patient migration, or the amount of movement toward the foot of the bed, has been shown to significantly vary because of the mechanical design differences in hospital beds. Previously, the amount of migration was measured immediately following head-of-bed articulation in healthy subjects. This study not only evaluates how much migration occurs immediately after head-of-bed articulation but also measures additional migration during a standard 2-hour repositioning period in subjects with limited mobility.