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Open-heart surgery in the first week of life
Insights
Early surgical repair of life-threatening congenital heart defects in newborns is now possible, offering a survival benefit. Careful attention to metabolic needs and surgical technique is crucial for successful outcomes in infant heart surgery.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Surgery
- Neonatal Intensive Care
Background:
- Congenital heart disease (CHD) historically had high mortality in infants, often leading to delayed surgical intervention.
- Advances in deep hypothermia with circulatory arrest and intensive care have enabled early surgical repair.
- Palliative procedures and medical management were previously standard for high-risk infant CHD.
Purpose of the Study:
- To evaluate the feasibility and outcomes of early surgical repair for life-threatening CHD in neonates.
- To identify complications associated with early infant cardiac surgery and strategies for prevention.
- To establish the efficacy of timely surgical intervention in improving survival rates for critical CHD.
Main Methods:
- Retrospective review of 11 infants undergoing definitive repair of life-threatening CHD within the first week of life since 1973.
- Application of deep hypothermia with circulatory arrest and advanced intensive care protocols.
- Detailed analysis of surgical techniques, postoperative complications, and management strategies.
Main Results:
- Seven out of 11 infants (64%) survived early surgical repair.
- Common complications included hypoglycemia, hypocalcemia, renal failure, and major bleeding, with specific preventive measures identified.
- One infant experienced brain damage due to cardiac arrest prior to operation.
Conclusions:
- Newborns with life-threatening congenital heart malformations can achieve successful surgical repair.
- Meticulous surgical technique and careful management of unique neonatal metabolic demands are essential.
- Early surgical intervention prior to clinical deterioration significantly improves survival in infants with critical CHD.
Abstract:
The high mortality of open-heart operations in infants with congenital heart disease has traditionally led to deferral of definitive operation and to use of medical therapy or palliative procedures. The technique of deep hypothermia with circulatory arrest and advances in intensive care have made early repair possible. Since 1973, we have repaired life-threatening but correctable lesions in 11 infants in the first week of life. There are 7 survivors. Four patients had total anomalous pulmonary venous drainage, 2 had truncus arteriosus (1 with aortic arch interruption), and 1 each had pulmonary atresia and intact ventricular septum, critical pulmonary stenosis and intact ventricular septum, D-transposition of the great vessels, tetralogy of Fallot, and left ventricular-aortic tunnel. Postoperative hypoglycemia (less than 50 mg per 100 ml) developed in 4 patients and hypocalcemia (less than 7 mg per 100 ml), in 5. These problems responded appropriately to replacement therapy. Three of the survivors experienced renal failure, a complication subsequently prevented by use of mild hemodilution perfusion. Two patients had major bleeding, which now is prevented by finer suturing and administration of vitamin K and platelets. One infant, moribund with pH of 6.8 when brought to operation, sustained a cardiac arrest with subsequent brain damage. We conclude that newborns with life-threatening malformations can undergo successful repair. Attention must be paid to their unique metabolic demands, and surgical technique must be meticulous. Early operation before clinical deterioration is essential.