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Anesthesia in pediatric heart transplantation
B Zickmann1, J Boldt, G Hempelmann
1Department of Anesthesiology and Intensive Care Medicine, Justus-Liebig University, Germany.
Insights
Pediatric heart transplantation requires specialized anesthetic management for neonates and children undergoing complex procedures. Careful attention to bypass techniques and inotropic support is crucial for successful outcomes in these young patients.
Area of Science:
- Pediatric Anesthesiology
- Cardiothoracic Surgery
- Pediatric Cardiology
Background:
- Heart transplantation is a standard treatment for adult end-stage heart failure.
- Experience with heart transplantation in newborns and children is limited.
- Anesthetic management for pediatric heart transplantation presents unique challenges.
Purpose of the Study:
- To demonstrate the anesthesiologic management of pediatric heart transplant patients.
- To describe the perioperative care of neonates and children undergoing heart transplantation.
- To highlight the complexities of anesthetic management in this patient population.
Main Methods:
- Retrospective analysis of the first 10 pediatric heart transplant patients.
- Detailed description of anesthetic techniques, including cardiopulmonary bypass (CPB) strategies.
- Documentation of pharmacologic support, including inotropes and vasodilators.
Main Results:
- Patients ranged from 5 days to 5 years old, with diagnoses including hypoplastic left heart syndrome and cardiomyopathy.
- CPB techniques varied by age: hypothermic cardiac arrest in neonates, continuous CPB in older children.
- All patients required inotropic support during and after CPB; various vasoactive medications were administered.
Conclusions:
- Pediatric heart transplantation poses significant anesthetic challenges, particularly in the pre-bypass, weaning, and early post-bypass phases.
- Experience and further research are needed to optimize anesthetic protocols for pediatric heart transplantation.
- Multidisciplinary collaboration is essential for managing these complex pediatric surgical cases.
Abstract:
Heart transplantation is a widely accepted therapy for end-stage myocardial failure in adults. However, few centers have experience in the treatment of newborns and children. The management of these children from the anesthesiologic viewpoint is demonstrated in our first 10 patients. Ages ranged from 5 days to 5 years; weights ranged from 2900 gm to 16 kg. The children suffered from hypoplastic left heart syndrome (n = 5) or cardiomyopathy (n = 5). Eight patients had to receive catecholamines (dobutamine) before surgery. In neonates cardiopulmonary bypass (CPB) with hypothermic cardiac arrest at 18 degrees C was used; in the older children continuous CPB at 24 degrees to 28 degrees C was performed. Inotropic support during and after weaning from CPB was necessary in all patients who received dobutamine (range, 2 to 10 micrograms/kg/min), epinephrine (range, 0.03 to 1.0 microgram/kg/min), or both. The phosphodiesterase inhibitor enoximone (1.0 mg/kg) was administered to five patients. Prostaglandin E1 was given to four patients, and it was necessary to give additional tolazoline to two patients. Heart transplantation is a challenge for anesthesiologists during the prebypass period as well as during the weaning and early postbypass periods. More experience is necessary to optimize the anesthetic management of these children.