Risk Factor Analysis in Pediatric Heart Transplantation (original) (raw)
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Lessons Learned from the Pediatric Heart Transplant Study
Congenital Heart Disease, 2006
The Pediatric Heart Transplant Study (PHTS) group was founded in 1991 as a voluntary, collaborative effort dedicated to the advancement of the science and treatment of children following listing for heart transplantation. Since 1993, the PHTS has collected data in an international, prospective, event-driven database that examines risk factors for outcome events following listing for transplantation. The events include transplantation, death, rejection, infection, malignancy, graft vasculopathy, and retransplantation. Over its 12 years of existence, the PHTS has made major contributions to the field of pediatric heart transplantation, especially in the areas of outcome analysis and risk factor assessment for death and other major morbidities after listing and after transplantation. The new challenges facing the PHTS include how to implement the practice of evidence-based medicine in the field of pediatric heart transplantation and how to support ongoing data collection and analysis to provide long-term outcomes as the PHTS subjects enter their second decade after transplantation.
Pediatric heart transplantation: Improving results in high-risk patients
Journal of Thoracic and Cardiovascular Surgery, 2001
Objectives: Our institutional experience with 73 pediatric patients undergoing cardiac transplantation between January 1, 1990, and December 31, 1999, was reviewed to determine the impact of unconventional donor and recipient management protocols implemented to extend the availability of this therapy.
[Results of a national program of pediatric heart transplantation: strengths and weakness]
Revista chilena de pediatria, 2017
Pediatric heart transplantation is an effective therapy to treat advanced heart failure in children. To analyze the immediate and mid-term results of pediatric patients listed for heart transplantation. Registration of patients admitted to our transplant protocol between October 2001 and July 2016 were reviewed, analyzing demographic data, diagnosis, status at the time of listing, waiting time until transplantation, donor data, use of ventricular assist device, hemodynamic data, complications and global mortality. Thirthy patients where included with a mean age of 9.4 years (1 month to 15 years). The most frequent diagnosis was dilated cardiomyopathy in 24 patients (80%). The status was I (urgency) in 19 cases and II in 11 cases. Ten patients died on the waiting list (33.3%) at an average of 52 days (13-139 days). Fourteen were transplanted (46.7%), with a waiting time of 199.6 days (4-586 days). Nine patients required mechanical support (30%). All patients received triple associati...
Pediatric Cardiology, 2012
Identification of heart transplant recipients at highest risk for a poor outcome could lead to improved posttransplantation survival. A chart review of primary heart transplantations from 1993 to 2006 was performed. Analysis was performed to evaluate the risk of graft loss for those with a transplantation age less than 1 year, congenital heart disease (CHD), elevated pulmonary vascular resistance (index [ 6), positive panel reactive antibody or crossmatch, liver or renal dysfunction, mechanical ventilation, or mechanical circulatory support (MCS). Primary transplantation was performed for 189 patients. Among these patients, 37% had CHD, 23% had mechanical ventilation, and 6% had renal dysfunction. Overall graft survival was 82% at 1 year and 68% at 5 years. The univariate risk factors for graft loss included mechanical ventilation (hazard ratio [HR], 1.9; 95% confidence interval [CI], 1.15-3.18), CHD (HR, 1.68; 95% CI, 1.04-2.70), and renal dysfunction (HR, 3.05; 95% CI, 1.34-6.70). The multivariate predictors of graft loss were CHD (HR, 1.8; 95% CI, 1.02-2.64), mechanical ventilation (HR, 1.9; 95% CI, 1.13-3.10), and the presence of two or more statistically significant univariate risk factors (SRF) (HR, 3.8; 95% CI, 2.00-7.32). Mechanical ventilation, CHD, and the presence of two or more SRFs identify pediatric patients at higher risk for graft loss and should be considered in the management of children with end-stage heart failure.
The Annals of Thoracic Surgery, 2012
Background. Heart transplantation is the only viable treatment for children with end-stage heart failure due to congenital heart disease (CHD) or cardiomyopathy. This study reviewed the trends in the indications for transplant and survival after transplant during the past 24 years. Methods. A retrospective review was performed of the 307 heart transplants performed at our center since 1986. To analyze the trends in the indications for transplant as well as operative death and late-survival, the data were divided into three periods in 8-year increments: 1986 to 1993 (50 patients), 1994 to 2001 (116 patients), and 2002 to 2009 (141 patients). Results. The indications for transplantation were 39% cardiomyopathy, 57% CHD, and 4% retransplant. Of the 173 with CHD, 139 (80%) had single-ventricle (SV) anomalies. In the CHD group, transplantation for failed SV palliation, including Fontan procedure, became the predominant indication in the last 8-year interval of our program. Survival after transplant was the best in patients with cardiomyopathy and the worst in patients with failed palliations for SV anomalies, including failed Fontan procedures. Conclusions. Transplantation for heart failure related to failed SV palliation has become the most common indication for patients with CHD. The high-risk nature of these transplants will have significant implications for heart transplant programs as more infants with SV anomalies survive palliative procedures performed during infancy.
Pediatric Transplantation, 2010
Heart transplantation is an accepted treatment for infants and children with incurable heart conditions. One of the major limitations to the success of pediatric heart transplantation is the shortage of available donor hearts. Strategies to increase donor organ availability include acceptance of Tang L, Du W, Delius RE, LÕEcuyer TJ, Zilberman MV. Low donorto-recipient weight ratio does not negatively impact survival of pediatric heart transplant patients.
Heart transplantation in children and infants: Short-term outcome and long-term follow-up
Pediatric Transplantation, 2001
Since 1988, 82 heart transplants have been performed in 80 infants and children. Diagnoses pretransplant were: hypoplastic left heart syndrome (HLHS) (n543); cardiomyopathy (n519); endocardial fibroelastosis (n56); and other complex congenital heart diseases (n512). Age at transplantation was ,1 yr in 61 patients. Overall survival rate was 79% at 1 yr and 73% at 5 and 10 yr. To date, 20 patients have died after transplantation. Causes of death were: rejection (eight patients); right ventricular failure (four patients); transplant coronary artery disease (TCAD) (two patients); and other causes (six patients). In the majority of patients somatic growth is not impaired, and renal function is reduced (but stable) in all patients. Two patients developed post-transplant lymphoproliferative disease, which was treated successfully. Major long-term morbidity is neurologic deficit -severe in three patients and minor in six. TCAD was present or suspected in six surviving patients. We conclude that heart transplantation in infants and children can be performed with good early and late results. Quality of life is excellent in most patients. TCAD, however, will become an increasing problem in the long term.
Paediatric Heart transplantation –20 years single center experience
The Thoracic and Cardiovascular Surgeon, 2007
Objective: Early and late mortality have significantly improved during recent decades in pediatric patients after heart transplantation (HTx). Nevertheless early and late morbidity and mortality are influenced by acute rejection, cardiac allograft vasculopathy (CAV), malignancy, renal failure, and graft failure. Methods: We evaluated our results after HTx in children under the age of 18 years with 23 years of follow-up. Perioperative characteristics, probability of survival, and time-related morbidity were retrospectively analyzed. Results: We included 169 pediatric HTx recipients, transplanted between 05/1986 and 05/2010. One hundred and one were males with a median age of 8.7 (0.02-23.2) years at the time of HTx. Main preoperative diagnoses were cardiomyopathy (CMP) (n = 139) with a median survival of 7.0 (0-23.2) years and congenital heart disease (CHD) (n = 30), median survival 11.3 (0-19.9) years. Overall survival at 1, 5, 10, and 15 years was 87%, 76%, 68%, and 50%, respectively. Patient survival was significantly reduced in patients with 0-1 year at the time of HTx versus 1-10 and 11-18 years: 2.3 (0-13.2) years versus 1-10 years = 8.6 (0-23.2) years; 11-18 years = 5.9 (0.003-18.5) years. Fifty-one patients were on mechanical circulatory support as a bridge-to-HTx with increased early but not late mortality. Ten patients underwent retransplant due to acute or chronic graft failure after a median posttransplant time of 12.25 (0.3-17.45) years. Late mortality was influenced by rejection, infection, posttransplant lymphoproliferative disease (PTLD) (11.8%), or CAV with an incidence of 25% at 5 years, 50% at 10 years, and approximately 75% at 15 years. Conclusions: Pediatric HTx is a safe and effective treatment for terminal heart failure. In our experience, there is no adverse effect of previous cardiac assist device implantation in long-term follow-up. Virtually all anatomic malformations are amenable to orthotopic HTx. Significant progress has been achieved in controlling rejection through improved immunosuppression and noninvasive rejection monitoring. #
Heart Transplantation in Children: Clinical Outcomes in a Single Center
Annals of Thoracic Surgery - ANN THORAC SURG, 2007
Despite being accepted as the best treatment for end-stage heart diseases, the long-term benefit of heart transplantation in children remains a matter of controversial debate. This study aimed to evaluate our clinical experience with heart transplantation in children.From March 1989 to December 1999, 93 consecutive orthotopic heart transplantations in children (less than 18 years of age) were performed at the Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW in Bad Oeynhausen, Germany. Clinical data were retrieved from a computerized database. Follow-up information was 100% completed.The main indications for heart transplantation were dilated cardiomyopathy (68%) and congenital heart disease (31%). Early mortality risk was 14% ± 3.6%. Primary graft failure (39%) was the main cause of early death. Total follow-up time was 694 patient-years (mean, 104.1 ± 42.8 months). Twenty-three patients died during follow-up, resulting in 33 of 1,000 patient-years of late mortality rate. Acute rejection (43%) and allograft vasculopathy (26%) were attributed to late mortality. The 1-, 5-, 10-, and 15-year survival was 83%, 74%, 63%, and 50%, respectively. Recipient age less than one year (p = 0.02) and ischemia time greater than 300 minutes (p = 0.04) were associated with decreased survival. Social activities at the end of follow-up were school (69%), working (19%), and at home (12%).Heart transplantation is a rational and durable treatment option for children with end-stage heart diseases. The long-term outcomes and quality of life after heart transplantation in children are encouraging.