Related Experiment Video
Updated: Nov 14, 2025

In Silico Clinical Trials for Cardiovascular Disease
Published on: May 27, 2022
Building a Longitudinal National Integrated Cardiovascular Database - Lessons Learnt From SingCLOUD
Khung Keong Yeo1,2, Hean-Yee Ong3, Terrance Chua1,2
1Department of Cardiology, National Heart Centre Singapore Singapore.
Insights
Singapore
Area of Science:
- Cardiovascular research
- Health informatics
- Real-world data analysis
Background:
- Fragmented real-world data hinders understanding of coronary artery disease (CAD) clinical outcomes and care quality.
- Existing data sources lack comprehensive longitudinal patient information.
- Need for integrated data to support robust cardiovascular research.
Purpose of the Study:
- To describe the rationale and design of the Singapore Cardiovascular Longitudinal Outcomes Database (SingCLOUD).
- To explain the approach for harmonizing diverse real-world data into a robust, longitudinal dataset.
- To present pilot data on myocardial infarction (MI) patients treated with percutaneous coronary intervention (PCI).
Main Methods:
- Developed a health data grid to integrate clinical, administrative, laboratory, procedural, prescription, and financial data.
- Harmonized data from diverse electronic medical and non-medical platforms across public healthcare institutions.
- Utilized pilot data from 3,819 patients with MI and PCI between 2012-2014.
Main Results:
- SingCLOUD platform generated 313 additional data fields compared to the Singapore Cardiac Data Bank.
- Identified 250 additional heart failure events and 664 major adverse cardiovascular events at 2 years.
- Captured 1-year low-density lipoprotein levels for 3,747 patients.
Conclusions:
- SingCLOUD enables in-depth analysis of real-world cardiovascular 'big data' by integrating multiple data sources.
- The platform enhances the depth and breadth of cardiovascular data analysis.
- Facilitates improved understanding of clinical outcomes and quality of care for CAD patients.
Abstract:
Real world data on clinical outcomes and quality of care for patients with coronary artery disease (CAD) are fragmented. We describe the rationale and design of the Singapore Cardiovascular Longitudinal Outcomes Database (SingCLOUD). We designed a health data grid to integrate clinical, administrative, laboratory, procedural, prescription and financial data from all public-funded hospitals and primary care clinics, which provide 80% of health care in Singapore. Here, we explain our approach to harmonize real-world data from diverse electronic medical and non-medical platforms to develop a robust and longitudinal dataset. We present pilot data on patients with myocardial infarction (MI) treated with percutaneous coronary intervention (PCI) between 2012 and 2014. The initial data set had 53,395 patients. Of these, 35,203 had CAD confirmed on coronary angiography, of whom 21,521 had PCI. Eventually, limiting to 2012-2014, 3,819 patients had MI with PCI, while 5,989 had MI. Compared with the quality improvement registry, Singapore Cardiac Data Bank, which had 189 fields for analysis, the SingCLOUD platform generated an additional 313 additional data fields, and was able to identify an additional 250 heart failure events, 664 major adverse cardiovascular events at 2 years, and low-density lipoprotein levels to 1 year for 3,747 patients. By integrating multiple incongruent data sources, SINGCLOUD enables in-depth analysis of real-world cardiovascular "big data".
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