Title : AI-Press Guard™: A nursing practice for preventing pressure injuries in ambulatory surgery
Abstract:
Objective: To evaluate the clinical efficacy of the AI-PressGuard™ intelligent pressure-sensitive protective pad in preventing intraoperative pressure injury (PI) among patients admitted to the ambulatory surgery center of our hospital, and to verify the feasibility and operability of this pad as an active intervention tool for circulating nurses.
Methods: A prospective, single-center, self-controlled practice study was conducted. Between October 1 and December 31, 2025, 216 ambulatory surgery patients with expected operative duration ≥2 h and Braden score≤ 14 were consecutively enrolled in the ambulatory surgery center of our hospital. Among them, 108 patients received AI-PressGuard™ application at high-risk pressure sites including the sacrococcygeal region, orbit sand heels (intervention phase), while the other 108 patients received conventional medical silicone decompression pads under identical surgical procedures during the same period (control phase). AI-PressGuard™ automatically establishes an individualized pressure threshold (15–25 mmHg) based on the patient's body mass index (BMI), serum albumin level and surgical procedure. When local pressure continuously exceeds the threshold for ≥ 25 s, the device triggers a vibration alarm and synchronously initiates targeted micro-vibration massage (frequency35Hz, amplitude 0.3 mm); circulating nurses immediately adjust the patient's position or apply pressure buffering measures in response to the alarm. The primary outcome was the incidence of new-onset stage?and above PI within 24 h postoperatively; secondary outcomes included average intervention response time, frequency of intraoperative active position adjustments, 2-hour postoperative comfort level (Numerical Rating Scale, NRS score) and same-day on-time discharge rate.
Results: The incidence of PI in the intervention phase was 1.85% (2/108), which was significantly lower than the 7.41% (8/108) observed in the control phase (χ²=4.92, P=0.027). The average response time in the intervention phase was 15.6±2.9 s, which was markedly shorter compared with the control phase (68.3±12.4 s) (t=42.7, P<0.001). The frequency of intraoperative active position adjustments increased from 0.8 times per patient to 3.2 times per patient (P<0.001). The postoperative comfort score increased by 2.1 points (P=0.004), and the same-day on-time discharge rate increased from 91.7% to 97.2% (P=0.038). No adverse events including device allergy, disinfectant corrosion or skin irritation were reported during the study period.
Conclusion: AI-PressGuard™ achieves a closed-loop management of dynamic pressure monitoring and immediate intervention for pressure injury in the single-center ambulatory surgery setting, significantly reduces PI risk, shortens nurse response latency, improves patient comfort and enhances ambulatory care service efficiency. This study demonstrates that AI-PressGuard™ is an innovative intelligent nursing practice with solid scientific basis, favorable clinical value and promising promotion potential.
Keywords: Ambulatory Surgery, Pressure Injury, AI-PressGuard™, Intelligent Protection, Circulating Nurse
