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Post-market safety profile of the CardioMEMS HF System: A MAUDE disproportionality and network analysis
Own Khraisat1, Bara M Hammadeh2, Layan S Aldib3
1Department of Internal Medicine, Englewood Hospital and Medical Center, Englewood, NJ, USA.
Background:
The CardioMEMS HF System is a wireless pulmonary artery pressure monitoring device approved for heart failure management. While clinical trials have demonstrated favorable safety profiles, comprehensive post-market surveillance analyses of real-world adverse event reports remain limited.
Methods:
All adverse event reports for the CardioMEMS HF System were extracted from the FDA MAUDE database. Descriptive analyses, diversity indices, Pareto analyses, disproportionality measures (Proportional Reporting Ratio [PRR] and Reporting Odds Ratio [ROR]), and co-occurrence network analyses with community detection were performed using R version 4.3.3.
Results:
A total of 5468 MAUDE reports were analyzed. The vast majority (98.0%) were classified as device malfunctions, with 110 reports (2.0%) designated as serious events. Patient-problem coding was dominated by administrative "no-impact" descriptors (97.9%). The most frequent device problems, including Material Frayed, Device Displays Incorrect Message, and Sparking, are attributable to the external home electronics unit rather than the implanted sensor and were not disproportionately associated with serious outcomes. Disproportionality analysis identified safety signals for Incorrect Measurement, Adverse Event Without Identified Device or Use Problem, Unintended Electrical Shock, and Dyspnea, which, while rare, were strongly associated with serious events. Co-occurrence network analysis revealed clinically interpretable community structure, including a heart failure decompensation cluster and a procedural complication cluster.
Conclusions:
The CardioMEMS HF System demonstrates a favorable post-market safety profile, with the overwhelming majority of MAUDE reports reflecting benign device malfunctions without clinical consequences. The majority of reported adverse events are attributable to the external home electronics unit rather than the implanted sensor, a distinction with important implications for clinical counseling and device management. Disproportionality analysis effectively separates high-volume, low-severity events from rare but clinically significant safety signals, providing a complementary perspective to clinical trial safety data.
Insights
Post-market analysis of the CardioMEMS HF System shows a favorable safety profile, with most adverse events linked to external components. Rare serious events were identified, highlighting the need for careful device management.
Area of Science:
- Cardiovascular technology
- Medical device safety
- Health informatics
Background:
- The CardioMEMS HF System is a wireless pulmonary artery pressure monitor for heart failure management.
- Clinical trials indicate a favorable safety profile for the device.
- Limited post-market surveillance data exists for real-world adverse event reports.
Purpose of the Study:
- To conduct a comprehensive post-market safety analysis of the CardioMEMS HF System using FDA MAUDE database reports.
- To identify and characterize adverse events, including device malfunctions and serious events.
- To evaluate the safety signals and clinical implications of reported events.
Main Methods:
- Extracted adverse event reports for the CardioMEMS HF System from the FDA MAUDE database.
- Performed descriptive analyses, diversity indices, Pareto analyses, and disproportionality measures (PRR, ROR).
- Utilized co-occurrence network analyses with community detection in R version 4.3.3.
Main Results:
- Analyzed 5468 MAUDE reports; 98.0% were device malfunctions, 2.0% were serious events.
- Most frequent issues (Material Frayed, Incorrect Message, Sparking) were linked to external electronics, not the implanted sensor.
- Disproportionality analysis identified safety signals for Incorrect Measurement, Adverse Event Without Identified Device or Use Problem, Unintended Electrical Shock, and Dyspnea, associated with serious events.
Conclusions:
- The CardioMEMS HF System exhibits a favorable post-market safety profile with mostly benign malfunctions.
- Adverse events are predominantly linked to the external home electronics unit, not the implanted sensor.
- Disproportionality analysis effectively distinguishes low-severity events from rare, clinically significant safety signals.
