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Binsalamah ZM, Ibarra C, Spigel Z, Zea-Vera R, Zink J, Heinle JS, Caldarone CA. Primary Aortic Root Replacement Outcomes and Risk Factors in Pediatric Patients. Ann Thorac Surg 2020; 110:189-197. [PMID: 32251661 DOI: 10.1016/j.athoracsur.2020.02.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The study sought to identify the optimal aortic root replacement (ARR) strategy for pediatric patients, and a single-center experience was analyzed. METHODS Retrospective review of patients undergoing ARR from 1995 to 2018 was performed. Patients were stratified by surgical strategy (pulmonary autograft [Ross procedure], aortic homograft, mechanical valve conduit [Bentall procedure], or porcine xenograft [Freestyle bioprosthesis]) and aortic annulus size. RESULTS ARR was performed in 206 patients with a median follow-up of 5.0 (interquartile range, 1.4-11.4) years. Root replacements included Ross procedure (n = 98), homograft (n = 83), Bentall procedure (n = 18), and Freestyle bioprosthesis (n = 7). Overall survival was 92%, and freedom from reoperation or death was 81%. Reoperation-free survival was superior in the Ross group when compared with other groups. Because surgical options differ based on the size of the aortic annulus, the analysis was arbitrarily stratified. When the aortic annulus diameter was greater than 19 mm (n = 74), procedures included Ross procedure (n = 23), homograft (n = 29), Bentall procedure (n = 17), and Freestyle bioprosthesis (n = 5). Reoperation-free survival at median follow-up (5 years) was 86%, 58%, 100%, and 100%, respectively. The Bentall procedure offered the longest freedom from reoperation. In the subset with aortic annulus diameter less than 19 mm and a pulmonary valve suitable for a Ross procedure, patients underwent the Ross procedure (n = 75) or homograft ARR (n = 36). At median follow-up (3.8 years), reoperation-free survival was longer after the Ross procedure than after homograft ARR (88% vs 46%; P < .001). CONCLUSIONS In patients with a large aortic annulus, a Bentall ARR offers the longest reoperation-free survival. For patients with small aortic roots, a Ross procedure provides better a reoperation-free survival than does homograft ARR.
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Fraser CD, Chacon-Portillo MA, Well A, Zea-Vera R, Binsalamah Z, Adachi I, Mery CM, Heinle JS. Twenty-Three-Year Experience With the Arterial Switch Operation: Expectations and Long-Term Outcomes. Semin Thorac Cardiovasc Surg 2020; 32:292-299. [PMID: 31958553 DOI: 10.1053/j.semtcvs.2020.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/12/2020] [Indexed: 11/11/2022]
Abstract
We aimed to describe the short- and long-term outcomes of patients after an arterial switch operation (ASO) at a single institution during a 23-year period. A retrospective chart review of all patients <18 months of age who underwent an ASO between January 1995 and March 2018 at Texas Children's Hospital, Houston, TX was performed. Primary endpoints include mortality and reintervention. Perioperative mortality was defined as mortality occurring in-hospital and/or <30 days after surgery. Survival and freedom-from-reintervention were analyzed using Kaplan-Meier method, log-rank tests, and Cox regression models. The cohort included 394 patients. Diagnoses included 204 patients (52%) with intact ventricular septum, 137 (35%) with a ventricular septal defect, 17 (4%) with a ventricular septal defect and left ventricular outflow tract obstruction (LVOTO), and 36 (9%) with Taussig-Bing anomaly. Median age at surgery was 8 days (range: 1 day to 17 months) and median weight was 3.4 (range: 0.8-12.0) kg. Overall perioperative mortality was 1.3% (n = 5), 0.3% (n = 1) since 1999. Overall survival at 5, 10, and 15 years was 98.2%, 97.8%, and 97.8%, respectively. Perioperative morality was associated with prematurity (P = 0.012), <2.5 kg (P< 0.001), and longer circulatory arrest (P = 0.024) after univariate analysis. Reintervention was associated with a longer cross-clamp time (P < 0.001), <2.5 kg (P = 0.009), LVOTO resection (P = 0.047), and genetic syndrome (P= 0.011) after multivariable analysis. Current ASO expectations should include a perioperative mortality risk of <1% and good long-term survival. Reinterventions are more frequent in patients <2.5 kg, concomitant LVOTO resection, a genetic syndrome, and longer cross-clamp time.
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Adachi I, Spinner JA, Tunuguntla HP, Elias BA, Heinle JS. The miniaturized pediatric continuous-flow device: A successful bridge to heart transplant. J Heart Lung Transplant 2019; 38:789-793. [PMID: 31109819 DOI: 10.1016/j.healun.2019.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 10/26/2022] Open
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Fraser CD, Chacon-Portillo MA, Zea-Vera R, John R, Elias BA, Heinle JS, Mery CM, Tunuguntla HP, Cabrera AG, Price JF, Denfield SW, Dreyer WJ, Qureshi AM, Adachi I. Ventricular Assist Device Support: Single Pediatric Institution Experience Over Two Decades. Ann Thorac Surg 2019; 107:829-836. [DOI: 10.1016/j.athoracsur.2018.08.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 07/30/2018] [Accepted: 08/13/2018] [Indexed: 11/28/2022]
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Bangalore H, Checchia PA, Ocampo EC, Heinle JS, Minard CG, Shekerdemian LS. Cortisol Response in Children After Second Cardiopulmonary Bypass. Pediatr Cardiol 2019; 40:47-52. [PMID: 30167750 DOI: 10.1007/s00246-018-1959-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/09/2018] [Indexed: 12/29/2022]
Abstract
A surge in cortisol levels is seen after surgery with cardiopulmonary bypass (CPB). Based on evidence of attenuation of the cortisol response to repeated stress in other settings, we hypothesized that the magnitude of cortisol increase in children after a second exposure to CPB would be reduced. Serial cortisol levels were measured at three time points after each CPB: immediately (day 0), on the first morning (day 1), and second morning (day 2). Forty-six children underwent two surgeries with CPB during the study period. The mean age (standard deviation) at first and second surgery was 3.5 (6.3) months and 10.4 (9.9) months, respectively. Cortisol levels at the first surgery were 109 (105) µg/dl, 29 (62) µg/dl, and 17 (12) µg/dl on day 0, 1, and 2, respectively; similarly at second surgery, it was 61 (57) µg/dl on day 0 to 20 (16) µg/dl and 11 (10) µg/dl on day 1 and 2, respectively. After log-transformation and adjusting for time interval between surgeries, cortisol levels at the second surgery were lower by 42% on day 0 (p = 0.02), and 46% lower on day 2 (p = 0.02). A second exposure to CPB in children with congenital heart disease is associated with an attenuated cortisol release.
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Dhillon GS, Fernandes CJ, Khan A, Heinle JS, Lopez KN. Transposition of the great arteries: When echocardiography does not match the clinical picture. JOURNAL OF CLINICAL ULTRASOUND : JCU 2018; 46:617-622. [PMID: 30160304 PMCID: PMC6710829 DOI: 10.1002/jcu.22615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/01/2018] [Accepted: 06/10/2018] [Indexed: 06/08/2023]
Abstract
Aortopulmonary window (APW) is a rare form of congenital heart disease seen in isolation or with complex cardiac lesions. APW has been associated with other cardiac defects such as interrupted aortic arch and Tetralogy of Fallot, but few cases have been reported of APW associated with transposition of the great arteries (TGA). In a newborn with TGA and intact ventricular septum, diagnosis of APW requires a high index of suspicion. This article reviews the literature on TGA with APW and illustrates the importance of additional evaluation in neonates with TGA when oxygen saturation and PaO2 do not match predicted clinical values.
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Chacon-Portillo MA, Zea-Vera R, Zhu H, Dickerson HA, Adachi I, Heinle JS, Fraser CD, Mery CM. Pulsatile Glenn as long-term palliation for single ventricle physiology patients. CONGENIT HEART DIS 2018; 13:927-934. [PMID: 30280502 DOI: 10.1111/chd.12664] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE There are limited studies analyzing pulsatile Glenn as a long-term palliation strategy for single ventricle patients. This study sought to determine their outcomes at a single institution. DESIGN A retrospective review was performed. SETTING Study performed at a single pediatric hospital. PATIENTS All single ventricle patients who underwent pulsatile Glenn from 1995 to 2016 were included. OUTCOME MEASURES Pulsatile Glenn failure was defined as takedown, transplant, or death. Further palliation was defined as Fontan, 1.5, or biventricular repair. Risk factors were assessed by Cox multivariable competing risk analyses. RESULTS Seventy-eight patients underwent pulsatile Glenn at age 9 months (interquartile range, 5-14). In total, 28% had heterotaxy, 18% had a genetic syndrome, and 24% had an abnormal inferior vena cava. There were 3 (4%) perioperative mortalities. Further palliation was performed in 41 (53%) patients with a median time-to-palliation of 4 years (interquartile range, 3-5). Pulsatile Glenn failure occurred in 10 (13%) patients with 8 total mortalities. Five- and 10-year transplant-free survival were 91% and 84%, respectively. At a median follow-up of 6 years (interquartile range, 2-8), 27 patients (35%) remained with PG (age 7 years [interquartile range, 3-11], oxygen saturation 83% ± 4%). Preoperative moderate-severe atrioventricular valve regurgitation (AVVR) (hazard ratio 7.77; 95% confidence interval 1.80-33.43; P =.005) and higher pulmonary vascular resistance (hazard ratio 2.59; 95% confidence interval 1.08-6.15; P =.031) were predictors of pulsatile Glenn failure after adjusting for covariates. Reaching further palliation was less likely in patients with preoperative moderate-severe AVVR (hazard ratio 0.22, 95% confidence interval 0.08-0.59; P =.002). CONCLUSION Pulsatile Glenn can be an effective tool to be used in challenging circumstances, these patients can have a favorable long-term prognosis without reducing their suitability for further palliation.
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Mery CM, Zea-Vera R, Chacon-Portillo MA, Zhu H, Kyle WB, Adachi I, Heinle JS, Fraser CD. Contemporary Outcomes After Repair of Isolated and Complex Complete Atrioventricular Septal Defect. Ann Thorac Surg 2018; 106:1429-1437. [PMID: 30009807 DOI: 10.1016/j.athoracsur.2018.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/30/2018] [Accepted: 06/04/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Contemporary outcomes of complete atrioventricular septal defect (CAVSD) repair, particularly for defects with associated abnormalities, is unclear. The goal of this study is to report an all-inclusive experience of CAVSD repair using a consistent surgical approach. METHODS All patients undergoing CAVSD repair between 1995 and 2016 at our institution were included. Patients were divided into 2 groups: isolated and complex (tetralogy of Fallot, aortic arch repair, double outlet right ventricle, and total anomalous pulmonary venous return). Survival and reoperation were analyzed using log-rank test and Gray's test, respectively. Multivariable analysis was performed with Cox regression. RESULTS Overall, 406 patients underwent repair: 350 (86%) isolated and 56 (14%) complex CAVSD (tetralogy of Fallot: 34, double outlet right ventricle: 7, aortic arch repair: 12, total anomalous pulmonary venous return: 3). Median age at repair was 5 months (range, 10 days to 16 years); 339 (84%) had trisomy 21. A 2-patch repair was used in 395 (97%) and the zone of apposition was completely closed in 305 (75%). Perioperative mortality was 2% and 4% in the isolated and complex groups, respectively. Perioperative mortality since 2006 was 0.9%. Median follow-up was 7 years. Overall 10-year survival and incidence of any reoperation were 92% and 11%, respectively. Complex anatomy was not a risk factor for mortality (p = 0.35), but it was for reoperation (hazard ratio [HR]: 2.6; p < 0.01). Risk factors for left atrioventricular valve reoperation were a second bypass run (HR: 2.7) and preoperative moderate or worse regurgitation (HR: 2.3). CONCLUSIONS Mortality after CAVSD repair is low, yet reoperation remains a significant problem. Repair of complex CAVSD can be performed with similar mortality rates.
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Fraser CD, Watrin C, Carberry KE, Dyer K, Adachi I, Mery CM, McKenzie ED, Heinle JS. Contemporary Outcomes in Pediatric and Congenital Heart Surgery in a Dedicated Surgical Program. J Am Coll Surg 2018. [DOI: 10.1016/j.jamcollsurg.2018.08.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Georgopoulos R, Hill C, Heinle JS, Mehta D. Congenital right bronchial stenosis with high bifurcation: Successful management with side to side tracheobronchial anastomosis. Int J Pediatr Otorhinolaryngol 2018; 111:180-182. [PMID: 29958606 DOI: 10.1016/j.ijporl.2018.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/08/2018] [Accepted: 06/09/2018] [Indexed: 11/26/2022]
Abstract
Congenital bronchial stenosis is a rare entity [1,2]. While there are some reports of congenital bronchial anomalies and their repair in the thoracic literature this is first report in the literature of a bronchial take off just below the larynx managed with surgical success. Here we present a case of a former 33-weeker born with a tracheoesophageal fistula, Tetralogy of Fallot, and a high bifurcation of the right mainstem bronchus with a concomitant long segment bronchial stenosis. Preoperative planning included printing 3-D reconstructed models of the airway to analyze various treatment options. At 3 months of age the patient was taken to the operating room for surgical repair of the Tetralogy of Fallot and side-to-side tracheobroncheoplasty. The patient was extubated on postoperative day 3 and was discharged home without need for any ventilatory support.
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Binsalamah ZM, Greenleaf CE, Heinle JS. Type A interrupted aortic arch and type III aortopulmonary window with anomalous origin of the right pulmonary artery from the aorta. J Card Surg 2018; 33:344-347. [PMID: 29749109 DOI: 10.1111/jocs.13717] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Interruption of the aortic arch, aortopulmonary window, and anomalous origin of the right pulmonary artery from the ascending aorta are very rare congenital anomalies. It is even rarer to have all three anomalies in the same setting. We present a case of a newborn who was diagnosed with these lesions and describe the primary repair of these anomalies.
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Binsalamah ZM, Chacon-Portillo MA, Sanyahumbi A, Adachi I, Heinle JS, Fraser CD, Mery CM. Circumflex aorta with double aortic arch in an infant. J Card Surg 2018; 33:292-295. [PMID: 29664156 DOI: 10.1111/jocs.13604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Circumflex aorta and double aortic arch are two forms of rare vascular rings. We present a case of an infant who was diagnosed with circumflex aorta and double aortic arch, and describe the surgical management of this rare anomaly.
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Binsalamah ZM, Marcano J, Zea-Vera R, Tunuguntla H, Kearney DL, Heinle JS, Fraser CD, Mery CM. Acute humoral rejection in an infant without risk factors after heart transplantation. J Card Surg 2018; 33:126-128. [PMID: 29399877 DOI: 10.1111/jocs.13532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Graft rejection is the most common factor that limits graft survival after transplantation. During infancy, the humoral immune system is partially suppressed and humoral rejection of a cardiac allograft has not been reported in the absence of risk factors such as prior transplantation, blood transfusions, ventricular assist devices, and elevation of panel reactive antibodies. We present a case of an infant with dilated cardiomyopathy who developed multiple episodes of acute humoral rejection after heart transplantation in the absence of risk factors.
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Puri K, Morris SA, Mery CM, Wang Y, Moffett BS, Heinle JS, Rodriguez JR, Shekerdemian LS, Cabrera AG. Characteristics and outcomes of children with ductal-dependent congenital heart disease and esophageal atresia/tracheoesophageal fistula: A multi-institutional analysis. Surgery 2018; 163:847-853. [PMID: 29325785 DOI: 10.1016/j.surg.2017.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/10/2017] [Accepted: 09/23/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Extracardiac birth defects are associated with worse outcomes in congenital heart disease (CHD). The impact of esophageal atresia/trachea-esophageal fistula (EA/TEF) on outcomes after surgery for ductal-dependent CHD is unknown. METHODS Retrospective matched cohort study using the Pediatric Health Information System database from 07/2004 to 06/2015. Hospitalizations with ductal-dependent CHD and EA/TEF, undergoing CHD surgery were included as cases. Admissions with ductal-dependent CHD without EA/TEF were matched 3:1 for age at admission and Risk Adjustment for Congenital Heart Surgery-1 classification. Comparisons were performed using generalized estimating equations. RESULTS There were 124 cases and 372 controls. Cases included 32 (25.8%) low-risk, 86 (69.3%) intermediate-risk, and 6 (4.8%) high-risk patients. Cases had more females compared to controls (53.2% vs 41.1%, P = .022). Cases were more likely to be premature (28.2% vs 13.7%, P = .001) and low birth weight (29.8% vs 11.8%, P < .001). Cases had a similar frequency of Down syndrome, and DiGeorge/Velocardiofacial syndrome, but a higher frequency of anorectal malformations (4.3% vs 2.4%, P < .001) and renal anomalies (27.4% vs 9.9%, P < .001) than controls. Cases had a higher mortality on univariate (22.0% vs 8.4%, P < .001) and multivariable analysis (odds ratio 2.45, 95%, confidence interval 1.34 - 4.49). Prematurity also was significantly associated with mortality on multivariable analysis. Cases had a longer duration of mechanical ventilation, longer hospital duration of stay, and higher total cost than controls (all P < .001). CONCLUSION In children with ductal-dependent CHD, EA/TEF is associated with increased morbidity, mortality and resource utilization. A majority of patients undergo EA/TEF repair prior to congenital heart disease surgery. (Surgery 2017;160:XXX-XXX.).
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Mery CM, De León LE, Rodriguez JR, Nieto RM, Zhang W, Adachi I, Heinle JS, Kane LC, McKenzie ED, Fraser CD. Effect of Gastrointestinal Malformations on the Outcomes of Patients With Congenital Heart Disease. Ann Thorac Surg 2017; 104:1590-1596. [DOI: 10.1016/j.athoracsur.2017.04.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/10/2017] [Accepted: 04/17/2017] [Indexed: 12/18/2022]
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Burrage LC, Guillerman RP, Das S, Singh S, Schady DA, Morris SA, Walkiewicz M, Schecter MG, Heinle JS, Lotze TE, Lalani SR, Mallory GB. Lung Transplantation for FLNA-Associated Progressive Lung Disease. J Pediatr 2017; 186:118-123.e6. [PMID: 28457522 PMCID: PMC5534178 DOI: 10.1016/j.jpeds.2017.03.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/10/2017] [Accepted: 03/17/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To describe a series of patients with pathogenic variants in FLNA and progressive lung disease necessitating lung transplantation. STUDY DESIGN We conducted a retrospective chart review of 6 female infants with heterozygous presumed loss-of-function pathogenic variants in FLNA whose initial presentation was early and progressive respiratory failure. RESULTS Each patient received lung transplantation at an average age of 11 months (range, 5-15 months). All patients had pulmonary arterial hypertension and chronic respiratory failure requiring tracheostomy and escalating levels of ventilator support before transplantation. All 6 patients survived initial lung transplantation; however, 1 patient died after a subsequent heart-lung transplant. The remaining 5 patients are living unrestricted lives on chronic immunosuppression at most recent follow-up (range, 19 months to 11.3 years post-transplantation). However, in all patients, severe ascending aortic dilation has been observed with aortic regurgitation. CONCLUSIONS Respiratory failure secondary to progressive obstructive lung disease during infancy may be the presenting phenotype of FLNA-associated periventricular nodular heterotopia. We describe a cohort of patients with progressive respiratory failure related to a pathogenic variant in FLNA and present lung transplantation as a viable therapeutic option for this group of patients.
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Rana A, Fraser CD, Scully BB, Heinle JS, McKenzie ED, Dreyer WJ, Kueht M, Liu H, Brewer ED, Rosengart TK, O'Mahony CA, Goss JA. Inferior Outcomes on the Waiting List in Low-Volume Pediatric Heart Transplant Centers. Am J Transplant 2017; 17:1515-1524. [PMID: 28251816 DOI: 10.1111/ajt.14252] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 02/12/2017] [Accepted: 02/17/2017] [Indexed: 01/25/2023]
Abstract
Low case volume has been associated with poor outcomes in a wide spectrum of procedures. Our objective was to study the association of low case volume and worse outcomes in pediatric heart transplant centers, taking the novel approach of including waitlist outcomes in the analysis. We studied a cohort of 6482 candidates listed in the Organ Procurement and Transplantation Network for pediatric heart transplantation between 2002 and 2014; 4665 (72%) of the candidates underwent transplantation. Candidates were divided into groups according to the average annual transplantation volume of the listing center during the study period: more than 10, six to 10, three to five, or fewer than three transplantations. We used multivariate Cox regression analysis to identify independent risk factors for waitlist and posttransplantation mortality. Of the 6482 candidates, 24% were listed in low-volume centers (fewer than three annual transplantations). Of these listed candidates in low-volume centers, only 36% received a transplant versus 89% in high-volume centers (more than 10 annual transplantations) (p < 0.001). Listing at a low-volume center was the most significant risk factor for waitlist death (hazard ratio [HR] 4.5, 95% confidence interval [CI] 3.5-5.7 in multivariate Cox regression and HR 5.6, CI 4.4-7.3 in multivariate competing risk regression) and was significant for posttransplantation death (HR 1.27, 95% CI 1.0-1.6 in multivariate Cox regression). During the study period, one-fourth of pediatric transplant candidates were listed in low-volume transplant centers. These children had a limited transplantation rate and a much greater risk of dying while on the waitlist.
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De León LE, Mery CM, Verm RA, Trujillo-Díaz D, Patro A, Guzmán-Pruneda FA, Adachi I, Heinle JS, Kane LC, McKenzie ED, Fraser CD. Mid-Term Outcomes in Patients with Congenitally Corrected Transposition of the Great Arteries: A Single Center Experience. J Am Coll Surg 2017; 224:707-715. [PMID: 28088601 DOI: 10.1016/j.jamcollsurg.2016.12.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 12/15/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND Optimal management of patients with congenitally corrected transposition of the great arteries (ccTGA) is unclear. The goal of this study was to compare the outcomes in patients with ccTGA undergoing different management strategies. STUDY DESIGN Patients with ccTGA believed suitable for biventricular circulation, treated between 1995 and 2016, were included. The cohort was divided into 4 groups: systemic right ventricle (RV) (patients without surgical intervention or with a classic repair), anatomic repair, Fontan palliation, and patients receiving only a pulmonary artery band (PAB) or a shunt. Transplant-free survival from presentation was calculated for each group. RESULTS The cohort included 97 patients: 45 (46%) systemic RV, 26 (27%) anatomic repair, 9 (9%) Fontan, and 17 (18%) PAB/shunt. Median age at presentation was 2 months (range 0 days to 69 years) and median follow-up was 10 years (1 month to 28 years). At initial presentation, 10 (11%) patients had any RV dysfunction (8 mild, 2 severe), and 16 (18%) patients had moderate or severe tricuspid regurgitation (TR). During the study, 10 (10%) patients died, and 3 (3%) patients underwent transplantation. At last follow-up, 11 (11%) patients were in New York Heart Association class III/IV, 5 (5%) had moderate or severe systemic ventricle dysfunction, and 16 (16%) had moderate or severe systemic atrioventricular valve regurgitation. Transplant-free survivals at 10 years were 93%, 86%, 100%, and 79% for systemic RV, anatomic repair, Fontan palliation, and PAB/shunt, respectively (p = 0.33). On multivariate analysis, only systemic RV dysfunction was associated with a higher risk for death or transplant (p = 0.001). CONCLUSIONS Transplant-free survival in ccTGA appears to be similar between patients with a systemic RV, anatomic repair, and Fontan procedure. Systemic RV dysfunction is a risk factor for death and transplant.
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Mery CM, Nieto RM, De León LE, Morris SA, Zhang W, Colquitt JL, Adachi I, Kane LC, Heinle JS, McKenzie ED, Fraser CD. The Role of Echocardiography and Intracardiac Exploration in the Evaluation of Candidacy for Biventricular Repair in Patients With Borderline Left Heart Structures. Ann Thorac Surg 2016; 103:853-861. [PMID: 27717424 DOI: 10.1016/j.athoracsur.2016.07.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 06/13/2016] [Accepted: 07/18/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Predictors for single ventricle palliation (SVP) or successful biventricular repair (BVR) in patients with borderline left-side heart structures are not well defined. The goal was to evaluate the role of echocardiography and intracardiac exploration in determining feasibility of BVR. METHODS All neonates surgically treated from 1995 to 2015 with mitral valve (MV), aortic valve, or left ventricle end-diastolic dimension z score of -2 or less for whom management was controversial were included. Data were analyzed using Fisher's exact test, Kruskal-Wallis test, and Kaplan-Meier analysis. RESULTS The cohort consisted of 42 patients: 7 SVP (17%) and 35 BVR (83%). Median follow-up was 7 years (range, 6 months to 18 years). Intracardiac exploration was performed in 29 patients (69%). There was poor correlation between echocardiographic and intraoperative MV measurements (intraclass correlation coefficient 0.14). Preoperative echocardiography significantly underestimated MV size in 14 patients (54%). Two BVR patients were converted to SVP, and 4 (including 1 converted patient) had cardiac-related deaths. All patients with MV greater than 8 mm on preoperative echocardiography had successful BVR. An intraoperative MV less than 8 mm and an abnormal subvalvar apparatus was present in 5 of 6 SVP (83%) and 3 of 3 (100%) failed BVR patients who had intracardiac exploration, and in only 1 of 20 successful BVR patients (5%) who had an intracardiac exploration. CONCLUSIONS The decision to proceed to BVR in patients with borderline left-side heart structures should not rely strictly on echocardiographic measurements. Intracardiac exploration of the MV and subvalvar apparatus is useful before committing a patient to SVP. Patients with low MV z scores, especially those with a normal subvalvar apparatus, may undergo BVR with good outcomes.
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Busch DR, Rusin CG, Miller-Hance W, Kibler K, Baker WB, Heinle JS, Fraser CD, Yodh AG, Licht DJ, Brady KM. Continuous cerebral hemodynamic measurement during deep hypothermic circulatory arrest. BIOMEDICAL OPTICS EXPRESS 2016; 7:3461-3470. [PMID: 27699112 PMCID: PMC5030024 DOI: 10.1364/boe.7.003461] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 05/03/2023]
Abstract
While survival of children with complex congenital heart defects has improved in recent years, roughly half suffer neurological deficits suspected to be related to cerebral ischemia. Here we report the first demonstration of optical diffuse correlation spectroscopy (DCS) for continuous and non-invasive monitoring of cerebral microvascular blood flow during complex human neonatal or cardiac surgery. Comparison between DCS and Doppler ultrasound flow measurements during deep hypothermia, circulatory arrest, and rewarming were in good agreement. Looking forward, DCS instrumentation, alone and with NIRS, could provide access to flow and metabolic biomarkers needed by clinicians to adjust neuroprotective therapy during surgery.
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McKenzie ED, Roeser ME, Thompson JL, De León LE, Adachi I, Heinle JS, Mery CM, Fraser CD. Descending Aortic Translocation for Relief of Distal Tracheal and Proximal Bronchial Compression. Ann Thorac Surg 2016; 102:859-862. [DOI: 10.1016/j.athoracsur.2016.02.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 10/21/2022]
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Mery CM, Guzmán-Pruneda FA, De León LE, Zhang W, Terwelp MD, Bocchini CE, Adachi I, Heinle JS, McKenzie ED, Fraser CD. Risk factors for development of endocarditis and reintervention in patients undergoing right ventricle to pulmonary artery valved conduit placement. J Thorac Cardiovasc Surg 2016; 151:432-9, 441.e1-2. [DOI: 10.1016/j.jtcvs.2015.10.069] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 09/29/2015] [Accepted: 10/11/2015] [Indexed: 10/22/2022]
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Guzman-Pruneda FA, Orr Y, Trost JG, Zhang W, Das S, Melicoff E, Maddox J, Nugent M, Mery CM, Adachi I, Schecter MG, Mallory GB, Morales DL, Heinle JS, McKenzie ED. Bronchial artery revascularization and en bloc lung transplant in children. J Heart Lung Transplant 2016; 35:122-129. [DOI: 10.1016/j.healun.2015.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 07/11/2015] [Accepted: 08/22/2015] [Indexed: 10/23/2022] Open
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Mery CM, Guzmán-Pruneda FA, Trost JG, McLaughlin E, Smith BM, Parekh DR, Adachi I, Heinle JS, McKenzie ED, Fraser CD. Contemporary Results of Aortic Coarctation Repair Through Left Thoracotomy. Ann Thorac Surg 2015. [PMID: 26209490 DOI: 10.1016/j.athoracsur.2015.04.129] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Although surgical results for repair of coarctation of the aorta (CoA) have steadily improved, management of this condition remains controversial. The purposes of this study were to analyze the long-term outcomes of patients undergoing CoA repair through left thoracotomy and to define risk factors for reintervention. METHODS All patients who were less than 18 years old and who underwent initial repair of CoA through left thoracotomy from 1995 to 2013 at Texas Children's Hospital (Houston, TX) were included. Patients were classified into 3 groups: 143 (42%) neonates (0 to 30 days old), 122 (36%) infants (31 days to 1 year old), and 78 (23%) older children (1 to 18 years old). Univariate and multivariate analyses were performed. RESULTS A total of 343 patients (129 [38%] girls) with median age of 53 days (interquartile range [IQR],12 days to 9 months) and weight of 4.1 kg (IQR, 3.1 to 8.0) underwent repair with extended end-to-end anastomosis (291 patients [85%]), end-to-end anastomosis (44 patients [13%]), interposition graft (2 patients [0.6%]), or subclavian flap (6 patients [2%]). Concomitant diagnoses included genetic abnormalities (48 patients [14%]), isolated ventricular septal defects (58 patients [17%]), small left-sided structures (53 patients,16%), or other complex congenital heart disease (18 patients [5%]). Perioperative mortality was 1% (n = 4, all neonates). At a median follow-up of 6 years (7 days to 19 years), only 14 (4%) patients required reintervention (10 catheter-based procedures, 6 surgical repairs). A postoperative peak velocity of 2.5 m/s or greater was an independent risk factor for reintervention (odds ratio [OR], 4.0; 95% confidence interval [CI], 1.4 to 11.6). Within the cohort, 95 (33%) patients were hypertensive or remained on cardiac medications a median of 12 years (6 months to 19 years) after the surgical procedure. Development of perioperative hypertension was associated with higher risk of chronic hypertension or cardiac medication dependency (OR, 1.9; 95% CI, 1.1 to 3.3). CONCLUSIONS CoA repair through left thoracotomy is associated with low rates of morbidity, mortality, and reintervention. Aortic arch obstruction should be completely relieved at the time of surgical intervention to minimize the risk of long-term recoarctation.
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Adachi I, Khan MS, Guzmán-Pruneda FA, Fraser CD, Mery CM, Denfield SW, Dreyer WJ, Morales DL, McKenzie ED, Heinle JS, Fraser CD. Evolution and Impact of Ventricular Assist Device Program on Children Awaiting Heart Transplantation. Ann Thorac Surg 2015; 99:635-40. [DOI: 10.1016/j.athoracsur.2014.10.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/22/2014] [Accepted: 10/03/2014] [Indexed: 11/29/2022]
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