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Use of dynamic knowledge graphs in a retrospective observational study for personalized health monitoring with routine clinical and weather data to predict cardiovascular hospitalizations and emergencies

Use of dynamic knowledge graphs in a retrospective observational study for personalized health monitoring with routine clinical and weather data to predict cardiovascular hospitalizations and emergencies - SolAegis

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00038327
Enrollment
100000
Registered
2025-11-03
Start date
2026-02-04
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

MACE (5-point MACE) encompasses all diagnoses and procedures related to major cardiovascular events, including myocardial infarction, stroke, cardiovascular death, rehospitalization for cardiovascular causes, and revascularization or other cardiovascular interventions. Myocardial infarction (ICD-10-GM): Acute myocardial infarction (I21.0–I21.9), recurrent myocardial infarction (I22.0–I22.9) Stroke (ICD-10-GM): Ischemic stroke (I63.0–I63.9), hemorrhagic stroke (I61.0–I61.9), subarachnoid hemorrha

Interventions

Group 1: As part of the project, retrospective routine data from medical records at the designated Deutsches Herzzentrum der Charité (DHZC) will be analyzed in digital form from January 1, 2007, to De

Sponsors

Charité – Universitätsmedizin Berlin, Deutsches Herzzentrum der Charité
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Patients with complete, electronically documented treatment data after admission to the emergency room/inpatient or intensive care unit in the cardiology ward, depending on the diagnosis, including routine data, vital sign monitor data, and laboratory data from the PDMS. - Complete, electronically documented treatment data for patients from the PDMS/hospital information system (HIS). - Data from cost and revenue accounting from Charité's controlling department is available, cf. HIS, §21 routine data records.

Exclusion criteria

Exclusion criteria: - Purely administrative records - Missing or invalid timestamps necessary for treatment history, temporally inconsistent sequences (e.g., death before encounter) - Insufficient temporal context to support outcome labeling (e.g., no recorded MACE)

Design outcomes

Primary

MeasureTime frame
The occurrence of a medically documented major adverse cardiovascular event (MACE) or acute clinical exacerbation, a situation requiring immediate care (e.g., visit to the emergency room or hospitalization) within 1, 5, 10, and 30 days after the index contact (e.g., visit to the emergency room) or the index admission (e.g., hospitalization). Measurement period: January 1, 2007, to December 31, 2024

Secondary

MeasureTime frame
The measurement period for all secondary end goals is also January 1, 2007, to December 31, 2024: 1) Dynamic inclusion and exclusion of the various machine learning algorithms (AML) in the dynamic knowledge graphs based on evaluation of their assessment metrics in order to limit computing capacity. 2) Inclusion of link predictions that reveal latent connections between exposure and health, such as previously unknown correlations between fine dust peaks and cardiac arrhythmias. Identification of additional variables for diagnostic confirmation (routinely collected laboratory values, clinical parameters, and vital monitor parameters, as well as other relevant health data) that are recorded and stored in the patient data management system (PDMS)/hospital information system (HIS) as part of routine care in order to improve MLA endpoints from secondary endpoint 1. 3) Use of MLA as defined in 1 and 2 to identify newly occurring or progressive cardiovascular diseases, time to diagnosis and therapy, patient outcomes, and comparative evaluation of case costs and revenues related to hospital stays. 4) Use of the MLA in the sense of 1 and 2 to identify performance indicators of routine clinical processes (doctor contacts, type of contact, diagnostics, change of medication, interventional or surgical procedures) of newly occurring or progressive serious cardiovascular events and comparative evaluation. The evaluation assesses how adequately and promptly the healthcare system has responded in order to identify gaps in care or potential for optimization in routine clinical processes. 5) Systematic evaluation of the explainability of the MLA and its predictions. Counterfactual simulation to consider alternative exposure pathways and implications for clinical guidelines for assessing the impact of public health measures (e.g., emission controls). This is to ensure that the predictions generated are not only technically correct, but also comprehensible and clinically inter

Countries

Germany

Contacts

Public ContactLaura Spies

Charité – Universitätsmedizin Berlin, Friede Springer Cardiovascular Prevention Center

laura-franziska.spies@charite.de+49 (0) 30 450 513-702

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026