Modeling Blood Pressure Monitoring in openEHR: An Implementation Case Study

Hospitals often struggle to reuse clinically relevant data because specialty information remains tied to application-specific structures. This study examines how an existing ambulatory blood pressure monitoring (ABPM) module can be translated into an openEHR-based template and prototype in a university hospital setting. An exploratory implementation case study combined workflow analysis, archetype review, gap analysis, template design, and low-code prototyping. The resulting template represented repeated blood pressure observations, interval-based summaries, encounter context, pulse-related parameters, and interpretation within one coherent structure. The case showed that adequate ABPM representation required a constrained combination of several archetypes rather than reuse of the blood pressure archetype alone. Prototyping further demonstrated that low-code implementation can serve as an early validation step for template quality. Beyond the ABPM use case, the study contributes a practical modeling pattern for translating specialty modules into constrained openEHR templates.