Seminars in thoracic and cardiovascular surgery. Pediatric cardiac surgery annual
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Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu · Jan 2003
ReviewRe-operative surgery in pediatric patients.
In spite of recent emphasis on primary repair for congenital heart defects, multiple operations are often required for staged repairs of complex lesions or replacement of outgrown or degenerated prosthetic material. The vast majority of re-do operations proceed without incident; however, re-operation entails greater risk of inadvertent injury to the phrenic nerve and other heart and vascular structures, postoperative bleeding, and may require alternative cannulation sites. Recommendations to address these hazards are reviewed, as are areas of research that may impact future approaches to the patient who requires re-operation. Pericardial closure and pericardial substitutes, bovine and synthetic, are briefly discussed, as is the use of aprotinin for its hemostatic and anti-inflammatory effects.
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Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu · Jan 2003
ReviewThe effect of modified ultrafiltration on the postoperative course in patients with congenital heart disease.
Improvements in the technology of cardiopulmonary bypass have significantly reduced morbidity following repair of congenital cardiac defects. However, the use of cardiopulmonary bypass exposes infants to extremes of hemodilution and hyperthermia, often in association with tissue ischemia. Exposure of the blood to surfaces of the bypass circuit initiates a systemic inflammatory response that may result in organ dysfunction after cardiopulmonary bypass, especially the heart, lungs, and brain. ⋯ The mechanisms by which MUF results in these beneficial effects requires additional investigation. In addition, further studies are necessary to identify patients most likely to benefit from MUF and to define the optimal protocols for its use. In the future, prospective randomized studies incorporating recent advances in the technology of cardiopulmonary bypass will be necessary to define the optimal utilization of ultrafiltration during and after cardiopulmonary bypass.
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Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu · Jan 2003
Arrhythmia surgery in association with complex congenital heart repairs excluding patients with fontan conversion.
Surgical arrhythmia therapy may be performed for patients failing the catheter ablation approach or incorporated into repair of complex congenital heart disease. Variations in atrial and ventricular anatomy that may limit the catheter approach can be directly addressed surgically assuring lesion depth and continuity of anatomic lines of block. Between July 1992 and August 2002, we performed arrhythmia surgery on 34 patients for refractory atrial (n = 29) or ventricular (n = 5) arrhythmias. ⋯ Ventricular tachycardia was inducible postoperatively in two of three patients with ventricular arrhythmias and congenital heart disease. Patient size or anatomic complexity should not be limiting factors in the combined surgical arrhythmia approach. Because older patients undergoing surgical revision of prior surgical repairs of congenital heart disease are at increased risk for the later development of atrial arrhythmias, incorporation of arrhythmia therapy into any planned surgical revision should be routinely considered.
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Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu · Jan 2002
ReviewPostoperative management in patients with complex congenital heart disease.
Life-threatening problems occur in the neonate and infant after cardiac surgery because of the interplay of diminished cardiac output (CO), increased metabolic demand, inflammatory responses to cardiopulmonary bypass, and maladaptive responses to stress. Therefore, the postoperative management of patients with complex congenital heart defects is directed at optimization of oxygen delivery to maintain end-organ function and promote wound healing. Traditionally, assessment of circulation in the postoperative congenital heart patient has depended on indirect assessment of CO using parameters such as blood pressure, pulses, capillary refill, and urine output. ⋯ A uniform approach to airway maintenance, vascular access, and drug infusions, all universal concerns during the perioperative period, minimizes the potential for these predictable and necessary interventions to result in morbidity or mortality. Management of the postoperative single ventricle patient targets stabilization of the systemic vascular resistance through the use of vasodilators to improve systemic perfusion and simplify ventilator management. Management of any individual patient should be driven by objective analysis of available data and must include efforts to re-evaluate the treatment plan as well as to identify unanticipated problems.
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Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu · Jan 2002
Review Historical ArticleSoftware development, nomenclature schemes, and mapping strategies for an international pediatric cardiac surgery database system.
The field of congenital heart surgery has the opportunity to create the first comprehensive international database for a medical subspecialty. An understanding of the demographics of congenital heart disease and the rapid growth of computer technology leads to the realization that creating a comprehensive international database for pediatric cardiac surgery represents an important and achievable goal. The evolution of computer-based data analysis creates an opportunity to develop software to manage an international congenital heart surgery database and eventually become an electronic medical record. ⋯ An international committee will map the two systems. The ideal coding system will permit a diagnosis or procedure to be coded only one time with mapping allowing this code to be used for patient care, billing, practice management, teaching, research, and reporting to governmental agencies. The benefits of international data gathering and sharing are global, with the long-term goal of the continued upgrade in the quality of congenital heart surgery worldwide.