Authors: Larsen et al.
Journal: The European Journal of Health Economics published: April 6, 2026
Summary:
This study evaluated whether artificial intelligence-assisted continuous vital sign monitoring after surgery affected healthcare costs, resource utilization, and labor market outcomes. The study was a secondary analysis of the WARD Surgical randomized clinical trial, which compared AI-assisted continuous vital sign monitoring with real-time alerts against blinded monitoring in postoperative ward patients.
The study included 382 surgical patients who could be linked to Danish national registry data. The authors examined total healthcare costs, hospital use, primary care use, home care, home nursing, prescription medication, employment status, full-time employment, and sickness leave. Outcomes were assessed at 30 days, 3 months, and 1 year, depending on the outcome.
The main finding was that AI-assisted continuous vital sign monitoring did not significantly reduce total healthcare costs. At 30 days, total healthcare costs were similar between groups, and costs were also similar at 1 year. The intervention also did not significantly change overall healthcare resource use, employment status, or duration of full-time employment.
However, patients in the AI-assisted monitoring group had a statistically significant reduction in sickness leave within 3 months. The reduction was 2.4 weeks compared with the control group. This suggests that even if the monitoring system did not reduce direct healthcare costs, it may have helped patients return to normal function or work sooner.
The authors also found that some unadjusted differences, such as lower prescription medication costs, home care costs, home nursing costs, and home nursing visits, appeared favorable in the intervention group at 1 year. However, after adjustment for baseline differences, these findings were no longer statistically significant.
Why this matters:
This study is important because hospitals often evaluate new monitoring technology mainly by asking whether it lowers hospital costs or reduces resource use. This study suggests that AI-assisted continuous vital sign monitoring may not clearly lower healthcare costs, but it also does not appear to increase them. The possible reduction in sickness leave may represent a broader societal benefit that hospitals may not directly capture financially.
Take-home point:
AI-assisted continuous vital sign monitoring after surgery did not significantly reduce total healthcare costs, resource utilization, employment status, or full-time employment duration. However, it was associated with a shorter duration of sickness leave within 3 months, suggesting a possible broader benefit beyond direct hospital cost savings.
Thank you to The European Journal of Health Economics for publishing this article and allowing us to summarize it.