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Quality assurance of paediatric cardiac surgery: a prospective 6-year analysis
R N Justo1, E F Janes, P H Sargent
1The Queensland Centre for Congenital Heart Disease, The Prince Charles Hospital, Brisbane, Queensland, Australia. robert_justo@health.qld.gov.au
Insights
Auditing paediatric cardiac surgery outcomes using surgical complexity stratification proved effective. This method allowed for monitoring performance over time without significant changes in mortality or complications.
Area of Science:
- Cardiovascular Surgery
- Pediatric Surgery
- Quality Assurance in Healthcare
Background:
- Effective quality assurance is crucial for monitoring outcomes in pediatric cardiac surgery.
- Institutions need robust methods to track surgical performance and patient safety.
- Auditing outcomes helps identify areas for improvement in complex surgical procedures.
Purpose of the Study:
- To audit effective quality assurance methods for monitoring pediatric cardiac surgery outcomes.
- To assess the value of stratifying surgical procedures by complexity for outcome analysis.
- To detect potential differences in surgical performance over time.
Main Methods:
- Prospective enrollment of all patients undergoing cardiac surgery from 1996 to 2001.
- Stratification of surgical procedures into four complexity categories (Category 4 being most complex).
- Outcome measures included mortality, length of hospital admission, and morbidity from complications.
Main Results:
- 1815 patients underwent 1973 procedures; 27.5% were complex (Category 3 & 4).
- Overall mortality was 3.6%; no significant yearly variation in mortality rate was detected, even after adjusting for surgical complexity.
- No significant differences in mortality rates were found based on individual surgeon performance or over time; complication rates (neurological, arrhythmias) also showed no yearly difference.
Conclusions:
- Stratifying surgical procedures by complexity is a valuable tool for monitoring outcomes in pediatric cardiac surgery.
- This stratification facilitates the creation of large subgroups for robust analysis and performance tracking.
- The audit demonstrated the effectiveness of this quality assurance method in a single institution over a defined period.
Objective:
To audit effective quality assurance methods to monitor outcomes following paediatric cardiac surgery at a single institution.
Methods:
All patients undergoing cardiac surgery from January 1996 to December 2001 were enrolled prospectively. Patients were stratified by complexity of surgical procedure into four groups, with Category 4 being the most complex procedure. Outcome measures included death, length of admission and morbidity from complications.
Results:
A total of 1815 patients underwent 1973 surgical procedures. Of these, 1447 (73.3%) were cardiopulmonary bypass procedures, and 543 (27.5%) were more complex (Category 3 and 4) procedures. Median patient age was 3.5 years (range, 1 day-20 years) and patient weight 15.0 kg (range, 900 g to 90 kg). Sixty-six patients (3.6%) died during the study period. Of the procedures in 1996, 22.7% were classified as complex compared with 29.2% of procedures in 2001. The annual surgical mortality ranged from 1.9-4.7% (P = 0.20), and when mortality was adjusted for complexity of surgery, there was no significant yearly variation in the mortality rate (P = 0.57). Analysis of individual surgeon's results showed no significant difference in the mortality rate by complexity of surgery performed (P = 0.90). Mean ventilation times did not change significantly over time (P = 0.79). The yearly incidence of significant neurological complications ranged from 0.6% to 4.5% and the incidence of arrhythmias from 4.2% to 8.0%. No difference was detected between the years.
Conclusions:
Stratifying complexity of surgery proved valuable in monitoring surgical outcomes and detecting differences in performance over time as large subgroups were created for analysis.
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