An Observational Cohort Study on Non-Recurrence Procedural Intervention and Reoperation for Recurrence After Ventral...

Area of Science:

• Surgical outcomes research
• Health informatics
• Medical device surveillance

Background:

• Long-term follow-up after ventral hernia repair (VHR) is challenging.
• Linking clinical registries with administrative claims data offers a novel approach for long-term outcome assessment.
• Validation of coding algorithms is crucial for reproducibility and scalability in VHR research.

Purpose of the Study:

• To establish Non-Recurrence Procedural Intervention (NRPI) and Reoperation for Recurrence (ROR) as validated long-term outcome measures for ventral hernia repair (VHR).
• To validate claims-based coding algorithms for NRPI and ROR against electronic health record (EHR) data.
• To enable enhanced long-term follow-up in VHR research and quality improvement.

Main Methods:

• Observational cohort study of 1,229 patients undergoing VHR between 2011-2019.
• Comparison of claims-based coding algorithms for NRPI and ROR with abstracted EHR data.
• Analysis of cumulative incidence of long-term NRPI and ROR using Bonferroni adjustment for significance (P<0.007).

Main Results:

• Cumulative incidence of NRPI was similar between claims (7.17%) and EHR (5.54%) data (P=0.0184).
• Cumulative incidence of ROR was similar between claims (6.84%) and EHR (7.00%) data (P=0.6547).
• Median follow-up was 4.5 years for both administrative and EHR data.

Conclusions:

• Claims-based coding algorithms for NRPI and ROR demonstrate similar cumulative incidence rates compared to EHR data.
• The validated algorithm facilitates robust long-term follow-up through clinical registry linkages with administrative claims.
• This approach supports comprehensive long-term assessment for research, quality improvement, and post-market surveillance in VHR.