Pressure Injuries: Prevention & Treatment in Hospital Stays

Hospital stays, while often necessary, carry inherent risks. Beyond the illness that brought a patient in, complications can arise from the particularly act of being immobile for extended periods. Researchers at Georgia Tech are now testing a novel approach to mitigate one such complication: pressure injuries, also known as bedsores. This new system, a flexible fabric embedded with sensors, aims to detect the early warning signs of these injuries and alert care teams before they fully develop.

What are Pressure Injuries and Why Do They Matter?

Pressure injuries (PIs) form when prolonged pressure on the skin restricts blood flow to underlying tissues. This can happen when someone is bedridden or spends a lot of time sitting. The resulting damage can range from mild redness to deep, open wounds. According to the HCA Healthcare Journal of Medicine, an estimated 2.5 million HAPIs – hospital-acquired pressure injuries – occur annually in the United States. These injuries aren’t simply a matter of discomfort; they can lead to infection, prolonged hospital stays, and increased healthcare costs. In severe cases, they can even be fatal. The Georgia Tech team’s work addresses a critical need for proactive prevention.

The development of a PI can occur surprisingly quickly – in a matter of days, or even hours. Once established, these injuries are notoriously difficult to treat. The new sensor fabric is designed to intervene at that crucial early stage, before significant damage occurs.

How Does the Sensor Fabric Work?

The core innovation lies in a flexible fabric woven with sensors that continuously monitor areas of the body particularly vulnerable to pressure. These areas include the sacrum (the bony structure at the base of the spine), heels, and hips. The sensors detect both pressure and moisture – sweat, for example – both of which contribute to PI development. When the system identifies conditions that suggest a PI is forming, it sends an alert to hospital staff, prompting them to reposition the patient. This represents currently being tested in the Pediatric Intensive Care Unit at Children’s Healthcare of Atlanta’s Arthur M. Blank Hospital, initially on cribs.

Beyond the Crib: The Broader Implications

While the initial testing is focused on pediatric intensive care, the potential applications of this technology are far-reaching. Any patient at risk of prolonged immobility could benefit, including those in adult intensive care units, long-term care facilities, and even those recovering at home. The system’s flexibility is a key advantage, allowing it to conform to the body’s contours and provide continuous monitoring without restricting movement.

Understanding the Risk: Hospital-Acquired vs. All Pressure Injuries

It’s critical to distinguish between all pressure injuries and those acquired within a hospital setting (HAPIs). HAPIs are a particular concern because they are often considered preventable. A quality improvement project at St. Mark’s Hospital in Salt Lake City, Utah, revealed that their HAPI rate was 66% higher than the national average of 3.5% of observed patients. This finding, published in the HCA Healthcare Journal of Medicine, underscores the need for targeted interventions like the Georgia Tech sensor system. The hospital responded by forming a multidisciplinary team to address the issue, demonstrating the importance of a collaborative approach to HAPI prevention.

The Role of Infection in Pressure Injury Complications

Pressure injuries, even seemingly minor ones, can quickly become complicated by infection. UpToDate reports that infected pressure ulcers are a common problem, occurring in 4 to 6 percent of nursing home patients. Infection not only prolongs healing but also increases the risk of serious systemic illness. Preventing PIs in the first place is therefore a crucial step in reducing the incidence of these complications.

What Comes Next: From Testing to Implementation

The current phase of testing at Children’s Healthcare of Atlanta is focused on evaluating the sensor fabric’s accuracy, reliability, and usability. Researchers are gathering data on how effectively the system detects early signs of PIs and how readily it integrates into existing clinical workflows. Further research will likely involve larger-scale clinical trials to confirm these findings and assess the system’s cost-effectiveness. If successful, the technology could become a standard component of pressure injury prevention protocols in hospitals and other healthcare settings. The team will also need to address questions of data privacy and security as the system generates and transmits patient information.

the goal is to shift from reactive treatment of pressure injuries to proactive prevention, improving patient outcomes and reducing the burden on the healthcare system. This sensor system represents a promising step towards that goal.