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Author Spotlight: Simulating Pediatric Cardiac Surgery Using a Neonatal Piglet Model
Published on: May 26, 2023
Avoiding use of total circulatory arrest in the practice of congenital heart surgery
Nagarajan Ramadoss1, Anil Kumar Dharmapuram2, Vejendla Goutami3
1Paediatric Cardiac Anaesthesiology, Division of Paediatric Cardiac Sciences, Krishna Institute of Medical Sciences (KIMS Hospitals), Minister Road, Secunderabad, 500003 India.
Insights
Selective antegrade cerebral perfusion (SACP) aims to reduce neurological damage during deep hypothermic circulatory arrest (DHCA) in congenital heart surgery. This review examines SACP
Area of Science:
- Pediatric Cardiac Surgery
- Cardiovascular Surgery
- Neurological Protection
Background:
- Deep hypothermic circulatory arrest (DHCA) is crucial for congenital heart defect repair but carries risks of neurological damage.
- Selective antegrade cerebral perfusion (SACP) emerged as a strategy to mitigate these neurological risks during aortic arch repairs.
- Despite improvements in DHCA, SACP offers a promising approach for enhanced neuroprotection.
Purpose of the Study:
- To review the physiological and technical aspects of SACP in pediatric cardiac surgery.
- To evaluate the outcomes associated with SACP use.
- To highlight the evolving strategies and need for standardization in SACP implementation.
Main Methods:
- Review of existing literature on SACP and DHCA in pediatric cardiac surgery.
- Analysis of physiological factors influencing SACP efficacy.
- Discussion of technical considerations for SACP delivery.
- Examination of reported neurological outcomes in patients undergoing SACP.
Main Results:
- SACP is an evolving technique with various strategies for its application.
- Optimizing flows, anti-inflammatory interventions, hematocrit, and temperature are key modifications.
- While outcomes with DHCA have improved, SACP shows potential for superior neuroprotection.
- Standardization of SACP conduct is necessary for comparable outcome assessment.
Conclusions:
- SACP is a valuable adjunct to DHCA for neuroprotection in pediatric aortic arch repair.
- Further research and standardization are needed to optimize SACP protocols and outcomes.
- The review provides insights into the factors influencing SACP effectiveness and future directions.
Abstract:
Deep hypothermic circulatory arrest (DHCA) technique has been an important armamentarium in the correction of congenital heart diseases. There have been many controversies and concerns associated with DHCA, particularly neurological damage. Selective ante grade cerebral perfusion (SACP) was introduced as an adjunct to DHCA with the objective of limiting the neurologic injury during aortic arch repairs. Over the past two decades, various aspects of cardiopulmonary bypass and DHCA have been studied and modified such as optimisation of flows, anti-inflammatory interventions, haematocrit, and temperature to improve neurologic outcomes. With the changes in practice of DHCA, outcomes have significantly improved but SACP intuitively appears attractive to offer better neuroprotection. The strategy of conduct of SACP is evolving and needs to be standardised for comparing outcomes. In this review we have discussed the various physiological and technical factors involved in conduct of SACP in paediatric cardiac surgery and outcomes with SACP.
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