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The Aristotle score: a complexity-adjusted method to evaluate surgical results
F Lacour-Gayet1, D Clarke, J Jacobs
1The Children's Hospital, University of Colorado, 1056 East 19th Avenue, Denver, CO 80218, USA. lacour-gayet.francois@tchden.org
Summary
A new Aristotle Score method was developed to assess the complexity of congenital heart surgery (CHS) procedures. This score helps standardize quality control and performance evaluation in CHS, regardless of the surgical center.
Area of Science:
- Cardiovascular Surgery
- Pediatric Surgery
- Surgical Quality Improvement
Background:
- Quality control in Congenital Heart Surgery (CHS) is challenging due to procedure diversity and potential for adverse outcomes.
- A standardized method is needed to evaluate performance in complex pediatric cardiac procedures.
Purpose of the Study:
- To develop a novel method for assessing surgical complexity in Congenital Heart Surgery.
- To create a complexity-adjusted score for quality control and performance evaluation in CHS.
Main Methods:
- The Aristotle project involved 50 pediatric surgeons from 23 countries.
- A two-step approach was used: Basic Score (procedure complexity) and Comprehensive Aristotle Score (patient characteristics).
- Factors included mortality, morbidity, technical difficulty, and patient-specific variables.
Main Results:
- The Aristotle Score precisely scores complexity for 145 CHS procedures.
- Surgical complexity is a constant value for a given patient, irrespective of the operating center.
- The score was applied to 26 centers, enabling a new performance display based on hospital survival and complexity.
Conclusions:
- The complexity-adjusted Aristotle Score was developed by international experts for CHS.
- The Aristotle Score is electronically available in EACTS and STS databases.
- A validation process is underway to evaluate the score's predictive value.