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Surgical treatment of truncus arteriosus, with emphasis on infants and small children
Insights
Complete surgical repair of truncus arteriosus shows improved survival rates in children over 2 years old. Early repair is advised for infants with severe heart failure, despite higher risks.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Surgery
- Medical Outcomes Research
Background:
- Truncus arteriosus is a complex congenital heart defect with variable outcomes.
- Surgical repair is the standard treatment, but optimal timing remains debated.
- Outcomes are influenced by patient age, defect type, and management quality.
Purpose of the Study:
- To evaluate survival rates and long-term outcomes following complete repair of truncus arteriosus.
- To determine the optimal age for elective surgical repair.
- To identify factors associated with hospital mortality and late death.
Main Methods:
- Retrospective analysis of pediatric patients undergoing complete repair for truncus arteriosus (Types I, II).
- Stratification of patients by age groups: <2 years, 2-5 years, >5 years.
- Review of intraoperative and postoperative management, and long-term follow-up data.
Main Results:
- Survival rates: 20% (<2 years), 86% (2-5 years), 100% (>5 years).
- Nine hospital deaths occurred, with 5 attributed to management issues.
- One late death occurred at 42 months postoperatively.
- Improved outcomes noted in patients aged 2 years and older.
Conclusions:
- Elective surgical repair of truncus arteriosus is advisable between 2 to 3 years of age due to better survival rates.
- Prompt primary repair in infants <2 years with intractable heart failure or rising pulmonary vascular resistance is indicated, despite poorer outcomes.
- Improvements in perioperative care are crucial for enhancing survival in all age groups.
Abstract:
Two of 10 children with truncus arteriosus, Type I, II, less than 2 years of age, 6 of 7 between 2 and 5 years of age, and all 5 older than 5 years survived after complete repair. Five of the nine hospital deaths are believed related to inadequate intra- and postoperative management. One late death has occurred 42 months postoperatively. The low hospital mortality rates in those 2 years of age and older, good long-term results to date, and the poor prognosis of children not operated upon indicate the advisability of elective repair at age 2 to 3 years. Although results in infants less than 2 years old have not been good, current improvements of intra- and postoperative care and the lack of a better alternative suggest that prompt primary repair is indicated for infants with intractable heart failure or increasing pulmonary vascular resistance.