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Intraaortic balloon pumping in children
Insights
Intraaortic balloon pumps offer limited long-term survival for pediatric patients after open-heart surgery. Survival rates decrease significantly in children under 5 due to technical challenges with device use.
Area of Science:
- Pediatric Cardiac Surgery
- Mechanical Circulatory Support
Background:
- Intraaortic balloon (IAB) support is a critical intervention for pediatric patients experiencing circulatory failure post-cardiac surgery.
- Limited data exists on the long-term efficacy and safety of IAB support in pediatric populations, particularly across different age groups.
Purpose of the Study:
- To evaluate the outcomes of pediatric patients requiring intraaortic balloon support following open-heart surgery.
- To identify factors influencing survival rates in different age strata.
Main Methods:
- Retrospective analysis of 14 pediatric patients who received intraaortic balloon support between June 1977 and December 1978.
- Data collected on patient age, cardiac output, aortic elasticity, and device-related complications.
Main Results:
- Six out of 14 patients (43%) achieved long-term survival.
- Survival rates were higher in older children: 4/5 (80%) in those >10 years old and 2/5 (40%) in those aged 5-10 years.
- All 4 children (<5 years old) died, with challenges related to low cardiac output, aortic elasticity, and oversized balloons.
Conclusions:
- Intraaortic balloon support in pediatric patients post-open-heart surgery is associated with a low overall survival rate.
- Age is a significant factor, with younger children (<5 years) experiencing prohibitive mortality.
- Technical difficulties, including device sizing and patient-specific physiological factors, contribute to poor outcomes in the youngest cohort.
Abstract:
From June, 1977, to December, 1978, 14 children had intraaortic balloon support after open-heart operation. There were 6 long-term survivors. Four of 5 children more than 10 years old and 2 of 5 children between 5 and 10 years old survived. All 4 children less than 5 years old died. In the youngest group, it was difficult to use the balloon successfully because of their very low cardiac output coming off bypass and their greater aortic elasticity. The smallest sizes of balloon available were found to be too long, extending well below the diaphragm in younger patients. In 7 out of 10 patients 5 years old or more, augmentation was obtained.