James W. Gaynor

Dr. James W. Gaynor

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Research Focus & Metrics

Academic Career Length

40Years (1987-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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28 August 2012 in Circulation
Verified
Journal Article
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BMBradley S. Marino
Bradley S. Marino
PLPaul H. Lipkin
Paul H. Lipkin
JNJane W. Newburger
Jane W. Newburger
GPGeorgina Peacock
Georgina Peacock
MGMarsha Gerdes
Marsha Gerdes
WMWilliam T. Mahle
William T. Mahle
Background—: The goal of this statement was to review the available literature on surveillance, screening, evaluation, and management strategies and put forward a scientific statement that would comprehensively review the literature and create recommendations to optimize neurodevelopmental outcome in the pediatric congenital heart disease (CHD) population. Methods and Results—: A writing group appointed by the American Heart Association and American Academy of Pediatrics reviewed the available literature addressing developmental disorder and disability and developmental delay in the CHD population, with specific attention given to surveillance, screening, evaluation, and management strategies. MEDLINE and Google Scholar database searches from 1966 to 2011 were performed for English-language articles cross-referencing CHD with pertinent search terms. The reference lists of identified articles were also searched. The American College of Cardiology/American Heart Association classification of recommendations and levels of evidence for practice guidelines were used. A management algorithm was devised that stratified children with CHD on the basis of established risk factors. For those deemed to be at high risk for developmental disorder or disabilities or for developmental delay, formal, periodic developmental and medical evaluations are recommended. A CHD algorithm for surveillance, screening, evaluation, reevaluation, and management of developmental disorder or disability has been constructed to serve as a supplement to the 2006 American Academy of Pediatrics statement on developmental surveillance and screening. The proposed algorithm is designed to be carried out within the context of the medical home. This scientific statement is meant for medical providers within the medical home who care for patients with CHD. Conclusions—: Children with CHD are at increased risk of developmental disorder or disabilities or developmental delay. Periodic developmental surveillance, screening, evaluation, and reevaluation throughout childhood may enhance identification of significant deficits, allowing for appropriate therapies and education to enhance later academic, behavioral, psychosocial, and adaptive functioning.

27 May 2010 in New England Journal of Medicine
Verified
Journal Article
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RORichard G. Ohye
Richard G. Ohye
LSLynn A. Sleeper
Lynn A. Sleeper
LMLynn Mahony
Lynn Mahony
JNJane W. Newburger
Jane W. Newburger
GPGail D. Pearson
Gail D. Pearson
JGJames W. Gaynor
James W. Gaynor
The Norwood procedure with a modified Blalock–Taussig (MBT) shunt, the first palliative stage for single-ventricle lesions with systemic outflow obstruction, is associated with high mortality. The right ventricle–pulmonary artery (RVPA) shunt may improve coronary flow but requires a ventriculotomy. We compared the two shunts in infants with hypoplastic heart syndrome or related anomalies. Infants undergoing the Norwood procedure were randomly assigned to the MBT shunt (275 infants) or the RVPA shunt (274 infants) at 15 North American centers. The primary outcome was death or cardiac transplantation 12 months after randomization. Secondary outcomes included unintended cardiovascular interventions and right ventricular size and function at 14 months and transplantation-free survival until the last subject reached 14 months of age. Transplantation-free survival 12 months after randomization was higher with the RVPA shunt than with the MBT shunt (74% vs. 64%, P=0.01). However, the RVPA shunt group had more unintended interventions (P=0.003) and complications (P=0.002). Right ventricular size and function at the age of 14 months and the rate of nonfatal serious adverse events at the age of 12 months were similar in the two groups. Data collected over a mean (±SD) follow-up period of 32±11 months showed a nonsignificant difference in transplantation-free survival between the two groups (P=0.06). On nonproportional-hazards analysis, the size of the treatment effect differed before and after 12 months (P=0.02). In children undergoing the Norwood procedure, transplantation-free survival at 12 months was better with the RVPA shunt than with the MBT shunt. After 12 months, available data showed no significant difference in transplantation-free survival between the two groups. (ClinicalTrials.gov number, NCT00115934.)

1 March 2009 in The Journal of Thoracic and Cardiovascular Surgery
Verified
Journal Article
Closed access
DLDaniel J. Licht
Daniel J. Licht
DSDavid M. Shera
David M. Shera
RCRobert R. Clancy
Robert R. Clancy
GWGil Wernovsky
Gil Wernovsky
LMLisa M. Montenegro
Lisa M. Montenegro
AVArastoo Vossough
Arastoo Vossough

1 May 2015 in Pediatrics
Verified
Journal Article
Open access
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JGJames W. Gaynor
James W. Gaynor
CSChristian Stopp
Christian Stopp
DWDavid Wypij
David Wypij
DADean B. Andropoulos
Dean B. Andropoulos
JAJoseph Atallah
Joseph Atallah
FIfor the International Cardiac Collaborative on Neurodevelopment (ICCON) Investigators
for the International Cardiac Collaborative on Neurodevelopment (ICCON) Investigators
BACKGROUND: Neurodevelopmental disability is the most common complication for survivors of surgery for congenital heart disease (CHD). METHODS: We analyzed individual participant data from studies of children evaluated with the Bayley Scales of Infant Development, second edition, after cardiac surgery between 1996 and 2009. The primary outcome was Psychomotor Development Index (PDI), and the secondary outcome was Mental Development Index (MDI). RESULTS: Among 1770 subjects from 22 institutions, assessed at age 14.5 ± 3.7 months, PDIs and MDIs (77.6 ± 18.8 and 88.2 ± 16.7, respectively) were lower than normative means (each P < .001). Later calendar year of birth was associated with an increased proportion of high-risk infants (complexity of CHD and prevalence of genetic/extracardiac anomalies). After adjustment for center and type of CHD, later year of birth was not significantly associated with better PDI or MDI. Risk factors for lower PDI were lower birth weight, white race, and presence of a genetic/extracardiac anomaly (all P ≤ .01). After adjustment for these factors, PDIs improved over time (0.39 points/year, 95% confidence interval 0.01 to 0.78; P = .045). Risk factors for lower MDI were lower birth weight, male gender, less maternal education, and presence of a genetic/extracardiac anomaly (all P < .001). After adjustment for these factors, MDIs improved over time (0.38 points/year, 95% confidence interval 0.05 to 0.71; P = .02). CONCLUSIONS: Early neurodevelopmental outcomes for survivors of cardiac surgery in infancy have improved modestly over time, but only after adjustment for innate patient risk factors. As more high-risk CHD infants undergo cardiac surgery and survive, a growing population will require significant societal resources.

1 January 2012 in JACC
Verified
Journal Article
Closed access
JFJeffrey A. Feinstein
Jeffrey A. Feinstein
DBD. Woodrow Benson
D. Woodrow Benson
ADAnne M. Dubin
Anne M. Dubin
MCMeryl S. Cohen
Meryl S. Cohen
DMDawn M. Maxey
Dawn M. Maxey
GMGerard R. Martin
Gerard R. Martin

1 November 2000 in Pediatrics
Verified
Journal Article
Closed access
PDF file
DMDoff B. McElhinney
Doff B. McElhinney
HHHolly L. Hedrick
Holly L. Hedrick
DBDavid M. Bush
David M. Bush
GPGilberto R. Pereira
Gilberto R. Pereira
PSPerry W. Stafford
Perry W. Stafford
GWGil Wernovsky
Gil Wernovsky
Objective.: Necrotizing enterocolitis (NEC) is primarily a disease of the premature infant. Among children born at term, however, congenital heart disease may be an important predisposing factor for this condition. To determine risk factors for NEC in patients with congenital heart disease, we conducted a case–control study of neonates with cardiac disease admitted to the cardiac intensive care unit at our center during the 4-year period from January 1995 to December 1998. Methods.: Cardiac diagnosis and age at admission were analyzed for association with NEC among the 643-patient inception cohort. Demographic, preoperative, and operative variables were recorded retrospectively in 21 neonates with congenital heart disease who developed NEC and 70 control neonates matched by diagnosis and age at admission. Using parametric and nonparametric analysis, cases and controls were compared with respect to previously identified risk factors for NEC. Results.: Among the entire cohort of 643 neonates with heart disease admitted to the cardiac intensive care unit, diagnoses of hypoplastic left heart syndrome (odds ratio [OR] = 3.8 [1.6–9.1]) and truncus arteriosus or aortopulmonary window (OR = 6.3 [1.7–23.6]) were independently associated with development of NEC by multivariable analysis. In the case–control analysis, earlier gestational age at birth (36.7 ± 2.7 weeks vs 38.1 ± 2.3 weeks), prematurity (OR = 3.9 [1.2–12.5]), highest dose of prostaglandin >0.05 μg/kg/minute (OR = 3.9 [1.2–12.5]), and episodes of low cardiac output (meeting specific laboratory criteria) or clinical shock (OR = 6.5 [1.8–23.5]) correlated with the development of NEC. Earlier gestational age and episodes of low output were the only factors that remained significantly associated with NEC by multivariable analysis. Although there was no difference in hospital mortality between patients with and without NEC, mean hospital stay was significantly longer in those who developed NEC (36 ± 22 days vs 19 ± 14 days). Conclusions.: The risk of NEC in neonates with congenital heart disease is substantial. Factors associated with an elevated risk of NEC in infants with heart disease include premature birth, hypoplastic left heart syndrome, truncus arteriosus, and episodes of poor systemic perfusion or shock. Heightened suspicion is warranted in newborns with these risk factors.