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1.
Am J Public Health ; 111(9): 1645-1653, 2021 09.
Article in English | MEDLINE | ID: mdl-34436921

ABSTRACT

We provide guidance for conducting clinical trials with Indigenous children in the United States. We drew on extant literature and our experience to describe 3 best practices for the ethical and effective conduct of clinical trials with Indigenous children. Case examples of pediatric research conducted with American Indian, Alaska Native, and Native Hawaiian communities are provided to illustrate these practices. Ethical and effective clinical trials with Indigenous children require early and sustained community engagement, building capacity for Indigenous research, and supporting community oversight and ownership of research. Effective engagement requires equity, trust, shared interests, and mutual benefit among partners over time. Capacity building should prioritize developing Indigenous researchers. Supporting community oversight and ownership of research means that investigators should plan for data-sharing agreements, return or destruction of data, and multiple regulatory approvals. Indigenous children must be included in clinical trials to reduce health disparities and improve health outcomes in these pediatric populations. Establishment of the Environmental Influences on Child Health Outcomes Institutional Development Award States Pediatric Clinical Trials Network (ECHO ISPCTN) in 2016 creates a unique and timely opportunity to increase Indigenous children's participation in state-of-the-art clinical trials.


Subject(s)
/statistics & numerical data , Capacity Building/organization & administration , Child Welfare/statistics & numerical data , Clinical Trials as Topic/standards , Indians, North American/statistics & numerical data , Child , Humans , Research Design , Safety , United States
2.
J Lipid Res ; 58(11): 2197-2201, 2017 11.
Article in English | MEDLINE | ID: mdl-28870972

ABSTRACT

Short stature is associated with increased LDL-cholesterol levels and coronary artery disease in adults. We investigated the relationship of stature to LDL levels in children in the West Virginia Coronary Artery Risk Detection in Appalachian Communities (CARDIAC) Project to determine whether the genetically determined inverse relationship observed in adults would be evident in fifth graders. A cross-sectional survey of schoolchildren was assessed for cardiovascular risk factors. Data collected at school screenings over 18 years in WV schools were analyzed for 63,152 fifth-graders to determine relationship of LDL to stature with consideration of age, gender, and BMI. The first (shortest) quartile showed an LDL level of 93.6 mg/dl compared with an LDL level of 89.7 mg/dl for the fourth (tallest) quartile. Each incremental increase of 1 SD of height lowered LDL by 0.049 mg/dl (P < 0.0001). Multivariate analysis showed LDL to vary inversely as a function of the first (lowest) quartile of height after controlling for gender, median age, BMI percentile for age and gender, and year of screening. The odds ratio for LDL ≥ 130 mg/dl for shortest versus tallest quartile is 1.266 (95% CL 1.162-1.380). The odds ratio for LDL ≥ 160 mg/dl is 1.456 (95% CL 1.163-1.822). The relationship between short stature and LDL, noted in adults, is confirmed in childhood.


Subject(s)
Body Height , Cholesterol, LDL/blood , Schools , Child , Female , Humans , Male
3.
Matern Child Health J ; 15(4): 534-41, 2011 May.
Article in English | MEDLINE | ID: mdl-20352312

ABSTRACT

Surveys were developed and administered to assess parental comfort with emergency care for children with special health care needs (CSHCN) with cardiac disease and the impact of a web-based database of emergency-focused clinical summaries (emergency information forms-EIF) called Midwest Emergency Medical Services for Children Information System (MEMSCIS) on parental attitudes regarding emergency care of their CSHCN. We hypothesized that MEMSCIS would improve the parent and provider outlook regarding emergencies of young children with heart disease in a randomized controlled trial. Children under age 2 were enrolled in MEMSCIS by study nurses associated with pediatric cardiac centers in a metropolitan area. Parents were surveyed at enrollment and 1 year on a 5-Point Likert Scale. Validity and reliability of the survey were evaluated. Study nurses formulated the emergency-focused summaries with cardiologists. One-hundred-seventy parent subjects, 94 study and 76 control, were surveyed at baseline and 1 year. Parents felt that hospital personnel were well-prepared for emergencies of their children and this improved from baseline 4.07 Ā± 1.03 to 1 year 4.24 Ā± 1.04 in study parents who had an EIF for their child and participated in the program (p = 0.0114) but not control parents. Parents perceived an improved comfort level by pre-hospital (p = 0.0256) and hospital (p = 0.0031) emergency personnel related to the MEMSCIS program. The MEMSCIS Program with its emergency-focused web-based clinical summary improved comfort levels for study parents. We speculate that the program facilitated normalization for parents even if the EIF was not used in an emergency during the study. The MEMSCIS program helps to prepare the family and the emergency system for care of CSHCN outside of the medical home.


Subject(s)
Communication , Consumer Behavior , Critical Care , Heart Diseases/congenital , Internet , Professional-Family Relations , Emergency Service, Hospital , Female , Health Care Surveys , Heart Diseases/physiopathology , Humans , Infant , Male , Severity of Illness Index , United States
4.
Appl Clin Inform ; 12(1): 10-16, 2021 01.
Article in English | MEDLINE | ID: mdl-33406541

ABSTRACT

BACKGROUND: The United States, and especially West Virginia, have a tremendous burden of coronary artery disease (CAD). Undiagnosed familial hypercholesterolemia (FH) is an important factor for CAD in the U.S. Identification of a CAD phenotype is an initial step to find families with FH. OBJECTIVE: We hypothesized that a CAD phenotype detection algorithm that uses discrete data elements from electronic health records (EHRs) can be validated from EHR information housed in a data repository. METHODS: We developed an algorithm to detect a CAD phenotype which searched through discrete data elements, such as diagnosis, problem lists, medical history, billing, and procedure (International Classification of Diseases [ICD]-9/10 and Current Procedural Terminology [CPT]) codes. The algorithm was applied to two cohorts of 500 patients, each with varying characteristics. The second (younger) cohort consisted of parents from a school child screening program. We then determined which patients had CAD by systematic, blinded review of EHRs. Following this, we revised the algorithm by refining the acceptable diagnoses and procedures. We ran the second algorithm on the same cohorts and determined the accuracy of the modification. RESULTS: CAD phenotype Algorithm I was 89.6% accurate, 94.6% sensitive, and 85.6% specific for group 1. After revising the algorithm (denoted CAD Algorithm II) and applying it to the same groups 1 and 2, sensitivity 98.2%, specificity 87.8%, and accuracy 92.4; accuracy 93% for group 2. Group 1 F1 score was 92.4%. Specific ICD-10 and CPT codes such as "coronary angiography through a vein graft" were more useful than generic terms. CONCLUSION: We have created an algorithm, CAD Algorithm II, that detects CAD on a large scale with high accuracy and sensitivity (recall). It has proven useful among varied patient populations. Use of this algorithm can extend to monitor a registry of patients in an EHR and/or to identify a group such as those with likely FH.


Subject(s)
Coronary Artery Disease , Coronary Artery Disease/diagnostic imaging , Electronic Health Records , Hospitals , Humans , International Classification of Diseases
5.
Front Pediatr ; 9: 679516, 2021.
Article in English | MEDLINE | ID: mdl-34336738

ABSTRACT

Introduction: Research capacity building is a critical component of professional development for pediatrician scientists, yet this process has been elusive in the literature. The ECHO IDeA States Pediatric Clinical Trials Network (ISPCTN) seeks to implement pediatric trials across medically underserved and rural populations. A key component of achieving this objective is building pediatric research capacity, including enhancement of infrastructure and faculty development. This article presents findings from a site assessment inventory completed during the initial year of the ISPCTN. Methods: An assessment inventory was developed for surveying ISPCTN sites. The inventory captured site-level activities designed to increase clinical trial research capacity for pediatrician scientists and team members. The inventory findings were utilized by the ISPCTN Data Coordinating and Operations Center to construct training modules covering 3 broad domains: Faculty/coordinator development; Infrastructure; Trials/Research concept development. Results: Key lessons learned reveal substantial participation in the training modules, the importance of an inventory to guide the development of trainings, and recognizing local barriers to clinical trials research. Conclusions: Research networks that seek to implement successfully completed trials need to build capacity across and within the sites engaged. Our findings indicate that building research capacity is a multi-faceted endeavor, but likely necessary for sustainability of a unique network addressing high impact pediatric health problems. The ISPCTN emphasis on building and enhancing site capacity, including pediatrician scientists and team members, is critical to successful trial implementation/completion and the production of findings that enhance the lives of children and families.

6.
J Clin Lipidol ; 14(6): 762-771, 2020.
Article in English | MEDLINE | ID: mdl-33067145

ABSTRACT

BACKGROUND: The Coronary Artery Risk Detection in Appalachian Communities (CARDIAC) Project is a state-wide risk factor screening program that operated in West Virginia for 19Ā years and screened more than 100,000 5th graders for obesity, hypertension, and dyslipidemia. OBJECTIVES: We investigated siblings in the CARDIAC Project to assess whether cardiometabolic risk factors (CMRFs) correlate in siblings. METHODS: We identified 12,053 children from 5752 families with lipid panel, blood pressure, and anthropometric data. A linkage application (LinkPlus from the U.S. Centers for Disease Control and Prevention) matched siblings based on parent names, addresses, telephone numbers, and school to generate a linkage probability curve. Graphical and statistical analyses demonstrate the relationships between CMRFs in siblings. RESULTS: Siblings showed moderate intraclass correlation coefficient of 0.375 for low-density lipoprotein cholesterol (LDL-C), 0.34 for high-density lipoprotein cholesterol (HDL-C), and 0.22 for triglyceride levels. The body mass index (BMI) intraclass correlation coefficient (0.383) is slightly better (2%) than LDL-C or HDL-C, but the standardized beta values from linear regression suggest a 3-fold impact of sibling LDL-C over the child's own BMI. The odds ratio of a second sibling having LDL-C < 110Ā mg/dL with a first sibling at that level is 3.444:1 (Confidence Limit 3.031-3.915, PĀ <Ā .05). The odds ratio of a sibling showing an LDL-C ≥ 160Ā mg/dL, given a first sibling with that degree of elevated LDL-C is 29.6:1 (95% Confidence Limit: 15.54-56.36). The individual LDL-C level correlated more strongly with sibling LDL-C than with the individual's own BMI. Seventy-eight children with LDL-C > 160Ā mg/dL and negative family history would have been missed, which represents more than half of those with LDL-C > 160Ā mg/dL (78 vs 67 or 54%). CONCLUSIONS: Sibling HDL-C levels, LDL-C levels, and BMIs correlate within a family. Triglyceride and blood pressure levels are less well correlated. The identified CMRF relationships strengthen the main findings of the overall CARDIAC Project: an elevated BMI is not predictive of elevated LDL-C and family history of coronary artery disease poorly predicts cholesterol abnormality at screening. Family history does not adequately identify children who should be screened for cholesterol abnormality. Elevated LDL-C (>160Ā mg/dL) in a child strongly suggests that additional siblings and parents be screened if universal screening is not practiced.


Subject(s)
Cardiometabolic Risk Factors , Mass Screening/statistics & numerical data , Siblings , Adolescent , Child , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Coronary Artery Disease/blood , Coronary Artery Disease/epidemiology , Coronary Artery Disease/metabolism , Female , Humans , Male
7.
Curr Pediatr Rev ; 13(4): 265-276, 2017.
Article in English | MEDLINE | ID: mdl-29345596

ABSTRACT

BACKGROUND: The Coronary Artery Risk Detection in Appalachian Communities (CARDIAC) Project is a chronic disease risk factor surveillance, intervention, and research initiative aimed at combating the unacceptably high prevalence of heart disease, diabetes, and other chronic illnesses in West Virginia. OBJECTIVES AND METHODS: The school-based public health project identifies health risk factors in children, educates families, informs primary care physicians, and provides resources to schools to help improve population health, beginning with children. RESULTS AND CONCLUSION: Details regarding methodology, results, and conclusions derived from this unique public health initiative that has screened over 200,000 children are the subject of this 18- year review.


Subject(s)
Coronary Artery Disease/epidemiology , Mass Screening/methods , Appalachian Region/epidemiology , Child , Coronary Artery Disease/diagnosis , Coronary Artery Disease/etiology , Coronary Vessels , Female , Humans , Male , Risk Factors , School Health Services/statistics & numerical data , West Virginia
8.
Congenit Heart Dis ; 11(3): 245-53, 2016 May.
Article in English | MEDLINE | ID: mdl-26554543

ABSTRACT

OBJECTIVE: As the adult congenital heart disease population increases, poor transition from pediatric to adult care can lead to suboptimal quality of care and an increase in individual and institutional costs. In 2008, the American College of Cardiology and American Heart Association updated the adult congenital heart disease practice guidelines and in 2011, the American Heart Association recommended transition guidelines to standardize and encourage appropriate timing of transition to adult cardiac services. The objective of this study was to evaluate if patient age or complexity of congenital heart disease influences pediatric cardiologists' decision to transfer care to adult providers and to evaluate the compliance of different types of cardiology providers with current adult congenital heart disease treatment guidelines. DESIGN: A single-center retrospective review of 991 adult congenital heart disease patients identified by ICD-9 code from 2010 to 2012. SETTING: Academic and community outpatient cardiology clinics. PATIENTS: Nine hundred ninety-one patients who are 18 years and older with congenital heart disease. INTERVENTION: None. OUTCOMES MEASURES: The compliance with health maintenance and transfer of care recommendations in the outpatient setting. RESULTS: For patients seen by pediatric cardiologists, only 20% had transfer of care discussions documented, most often in younger simple patients. Significant differences in compliance with preventative health guidelines were found between cardiology provider types. CONCLUSION: Even though a significant number of adults with congenital heart disease are lost to appropriate follow-up in their third and fourth decades of life, pediatric cardiologists discussed transfer of care with moderate and complex congenital heart disease patients less frequently. Appropriate transfer of adults with congenital heart disease to an adult congenital cardiologist provides an opportunity to reinforce the importance of regular follow-up in adulthood and may improve outcomes as adult congenital cardiologists followed the adult congenital heart disease guidelines more consistently than pediatric or adult cardiologists.


Subject(s)
Cardiology/standards , Continuity of Patient Care/standards , Guideline Adherence/standards , Heart Defects, Congenital/therapy , Practice Guidelines as Topic/standards , Practice Patterns, Physicians'/standards , Process Assessment, Health Care/standards , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Heart Defects, Congenital/diagnosis , Humans , Middle Aged , Minnesota , Retrospective Studies , Survivors , Time Factors , Treatment Outcome , Young Adult
9.
J Thorac Cardiovasc Surg ; 146(4): 854-860.e3, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23871139

ABSTRACT

OBJECTIVES: Unbalanced atrioventricular (AV) canal defects include a hypoplastic ventricle (HV) and AV valve (HAVV) precluding complete 2-ventricle repairs (2VRs). Catch-up growth would solve this problem and was induced by increasing HAVV flow. The objectives were to assess reliability of HV and HAVV growth and provide 5- to 15-year 2VR follow-up. METHODS: From 1990 to 2005, 23 consecutive infants (13 females and 10 males) with echo-diagnosed unbalanced AV canal defects (nĀ =Ā 20) or subsets (nĀ =Ā 3) underwent 2VRs. HV volumes (18 left and 5 right) and HAVV sizes estimated from biplane echoes and z values (standard deviation from expected) were determined. Hypoplasia was defined by a z value of less than -2.0. Three operative approaches were used: (1) Staged repairs (nĀ =Ā 9) had complete AVV repairs with partial atrial septal defect and ventricular septal defect closures, which increased HAVV flow and maintained stability. The septal defects were closed later. (2) An asymmetric valve partition (nĀ =Ā 8) was used to increase HAVV size. (3) For moderate hypoplasia, HAVV flow was increased and ASDs/VSDs were left for stability (nĀ =Ā 6). Follow-up at 5 to 19 years was done locally. RESULTS: Staged repairs began at 20 to 328 days (average, 129 days) and were completed 5 to 145 days later (average, 101 days). Midterm survival was 87% (20/23) after 1 central nervous system bleed after trial weaning from extracorporeal membrane oxygenation and 2 later deaths from hyperkalemia. Reoperations for AVV regurgitation (nĀ =Ā 3), AVV stenosis (nĀ =Ā 1), and mitral valve replacement (nĀ =Ā 1) were satisfactory. On follow-up, all hypoplastic structures (HV and HAVV) had grown to normal size. Two patients "doing well" were lost to follow-up. Survivors have satisfactory 2VRs, with 15 of 18 taking no cardiac failure medications. CONCLUSIONS: Reliable HV/HAVV catch-up growth was induced, and all midterm 2VRs were satisfactory.


Subject(s)
Abnormalities, Multiple , Cardiac Surgical Procedures , Endocardial Cushion Defects/surgery , Heart Septal Defects, Atrial/surgery , Heart Septal Defects, Ventricular/surgery , Heart Ventricles/surgery , Adolescent , Adult , Cardiac Surgical Procedures/adverse effects , Child , Child, Preschool , Endocardial Cushion Defects/diagnosis , Endocardial Cushion Defects/physiopathology , Female , Heart Septal Defects , Heart Septal Defects, Atrial/diagnosis , Heart Septal Defects, Atrial/physiopathology , Heart Septal Defects, Ventricular/diagnosis , Heart Septal Defects, Ventricular/physiopathology , Heart Ventricles/abnormalities , Heart Ventricles/diagnostic imaging , Heart Ventricles/growth & development , Humans , Infant , Infant, Newborn , Male , Time Factors , Treatment Outcome , Ultrasonography , Young Adult
10.
J Thorac Cardiovasc Surg ; 143(4 Suppl): S29-32, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22153855

ABSTRACT

OBJECTIVE: Congenital mitral and tricuspid valve abnormalities in unbalanced atrioventricular canal defects are complex. We designed procedures to both repair and induce growth of hypoplastic atrioventricular valves and ventricles to achieve 2-ventricle repairs. Midterm data were assessed for reliability of catch-up growth, resulting quality of atrioventricular valves, and adequacy of 2-ventricle repairs. METHODS: The 24 consecutive infants (14 female and 10 male) with unbalanced atrioventricular canal defects had significant hypoplasia of 1 atrioventricular valve and/or ventricle (an echocardiography-derived z value of ≤-3.0 standard errors of the mean below expected). Operative approaches included the following: (1) Staged repair was performed, with complete valve repair, partial closure of the atrial septal, and ventricular septal defects, and (usually) pulmonary artery banding. After adequate growth, repair was completed. A vestigial mitral valve (4-7 mm) in 3 patients led to partitioning the large tricuspid valve, creating a second mitral valve. (2) Repair with a shift in atrioventricular valve partitioning was performed to increase hypoplastic atrioventricular valve size. (3) Repair with snared atrial septal defects and ventricular septal defect was performed to allow intracardiac shunting. The hypoplastic atrioventricular valves and hypoplastic ventricles were reassessed on local follow-up (5-15 years). RESULTS: The initial z scores were -2.8 to -7.4 for hypoplastic atrioventricular valves and -1.0 to -7.5 for hypoplastic ventricles. Follow-up z scores were -0.6 to -2.7 for hypoplastic atrioventricular valves and -2.0 to +1.8 for hypoplastic ventricles. Another 11 patients were also judged to be within normal limits. Three reoperations were for mitral valve regurgitation, and 1 reoperation was for mitral valve replacement. One patient died of central nervous system bleed just before extracorporeal membrane oxygenation weaning, and 2 patients died of late potassium overdose, for an 88% survival. Survivors are well with 2-ventricle repairs, and 15 of 19 patients are not taking cardiac medications. CONCLUSIONS: Increasing atrioventricular valve flow reliably induced growth. Valve repair and growth achieved a 2-ventricle repair in all patients.


Subject(s)
Abnormalities, Multiple , Cardiac Surgical Procedures , Heart Septal Defects, Atrial/surgery , Heart Septal Defects, Ventricular/surgery , Mitral Valve/surgery , Tricuspid Valve/surgery , Cardiac Surgical Procedures/adverse effects , Cardiac Surgical Procedures/mortality , Female , Heart Septal Defects, Atrial/diagnostic imaging , Heart Septal Defects, Atrial/physiopathology , Heart Septal Defects, Ventricular/diagnostic imaging , Heart Septal Defects, Ventricular/mortality , Heart Septal Defects, Ventricular/physiopathology , Hospital Mortality , Humans , Infant , Infant, Newborn , Male , Mitral Valve/abnormalities , Mitral Valve/diagnostic imaging , Mitral Valve/growth & development , Time Factors , Treatment Outcome , Tricuspid Valve/abnormalities , Tricuspid Valve/diagnostic imaging , Tricuspid Valve/growth & development , Ultrasonography
11.
Ann Pediatr Cardiol ; 5(1): 47-50, 2012 Jan.
Article in English | MEDLINE | ID: mdl-22529602

ABSTRACT

OBJECTIVE: Both spontaneous resolution and progression of mild pulmonary valve stenosis (PS) have been reported. We reviewed characteristics of the pulmonary valve (PV) to determine factors that could influence resolution of mild PS. METHODS: Fifteen asymptomatic pediatric patients with spontaneous resolution of isolated mild PS were retrospectively reviewed. RESULTS: There was no correlation between the PV gradient, clinical presentation, age at diagnosis, or PV morphology. The PV annulus was small at initial presentation, which normalized at follow up. When corrected for the body surface area (z-score), the PV annulus was normal in all patients, including at initial evaluation. CONCLUSIONS: Based on our observation, neither age at diagnosis, nor PV-morphology-influenced resolution of mild PS. The variable clinical presentation makes it difficult to categorize and observe mild PS by auscultation alone. The PV annulus z-score could be a useful adjunct to determine the course and serial observation of mild PS.

13.
J Cardiovasc Transl Res ; 3(6): 625-34, 2010 Dec.
Article in English | MEDLINE | ID: mdl-20848344

ABSTRACT

Extracorporeal membrane oxygenation (ECMO) is routinely used to support cardiopulmonary failure in infants and children. Suboptimal outcomes for primary cardiac support suggest a need for investigation of the impact of ECMO on the heart. Twenty-four newborn lambs received a brief period of ECMO support to investigate the hypothesis that ECMO produces cardiac dysfunction in newborn lamb. Dorset newborn lambs, 4-7 days of age, were exposed to ECMO for 5 min at a 100 ml/kg flow rate and quickly weaned off. Measurements included echocardiographic mean left ventricular (LV) velocity of circumferential fiber shortening corrected for heart rate (mVCFc), LV shortening fraction, and peak systolic wall stress plus hemodynamic measurement of LV maximum rate of pressure change with time (LV dp/dt max), maximum rate of pressure change divided by developed pressure (LV dp/dtP), right atrial pressure, pulmonary capillary wedge pressure, mean pulmonary artery pressure, LV peak and end-diastolic pressure, and aortic pressure. These measures were also obtained after an exposure to 5 min of ECMO and immediate disconnect for 5 min, followed by ECMO administration for 1 h again, followed by discontinuation of ECMO. LV mVCFc is decreased after exposure to 5 min of ECMO support despite a decrease in LV peak systolic wall stress that provides afterload reduction. LV mVCFc is inversely related to peak systolic wall stress at a significance level of p < 0.0001. The time period after initiation of ECMO is a significant factor in the model (p = 0.0097). Time [baseline] was different from the other time points with p = 0.0010. Average mVCFc at baseline is 1.27 Ā± 0.35 and decreases to 1.01 Ā± 0.42 after 5 min of ECMO that is then withdrawn. Peak systolic wall stress decreases from 36.0 Ā± 13.1 at baseline to 29.8 Ā± 12.1 after 5 min of ECMO. LV dp/dt max decreases from 1,769 Ā± 453 mmHg/s at baseline to 1,311 Ā± 513 mmHg/s after exposure to 5 min of ECMO (p = 0.0005). Baseline LV dp/dt max is different from each point after start of ECMO. Diastolic LVdp/dt min increased from -1,340 Ā± 477 mmHg/s to -908 Ā± 393 mmHg/s at 5 min. Echocardiographic mVCFc, when considered in isolation or as a function of LV peak systolic wall stress, shows diminished LV function after ECMO. Hemodynamic measurement of LV dp/dt max and LV dp/dt min confirms the observation. Separation of the humoral from mechanical effect of ECMO with the short exposure to the extracorporeal circuit shows that an immediate decrement of LV function occurs at initiation of ECMO, a finding that has not been stressed with previous studies of extracorporeal support. This implies a potentially outcome-limiting deleterious effect for the patient who requires ECMO support for the heart rather than the lungs. We should continue to strive to understand and ameliorate this deleterious effect of the extracorporeal circulation circuit.


Subject(s)
Extracorporeal Membrane Oxygenation/adverse effects , Hemodynamics , Ventricular Dysfunction, Left/etiology , Analysis of Variance , Animals , Animals, Newborn , Aorta/physiopathology , Central Venous Pressure , Disease Models, Animal , Electron Spin Resonance Spectroscopy , Hypoxia/complications , Hypoxia/physiopathology , Myocardial Contraction , Pulmonary Artery/physiopathology , Pulmonary Wedge Pressure , Sheep , Time Factors , Ultrasonography , Ventricular Dysfunction, Left/diagnostic imaging , Ventricular Dysfunction, Left/physiopathology , Ventricular Function, Left , Ventricular Pressure
14.
J Heart Lung Transplant ; 29(11): 1302-5, 2010 Nov.
Article in English | MEDLINE | ID: mdl-20620085

ABSTRACT

Advances in palliation of congenital heart disease have resulted in improved survival to adulthood. Many of these patients ultimately develop end-stage heart failure requiring left ventricular assist device implantation (LVAD). However, morphologic differences in the systemic ventricle of these patients require careful attention to cannula placement. We report on the evolution of our surgical technique for implanting LVADs in 3 patients with transposition of the great arteries and congenitally corrected transposition of the great arteries. Applying standard LV cannulation techniques to the systemic ventricle led us too anteriorly in our first patient, creating obstruction by the moderator band. Subsequent use of epicardial and transesophageal echocardiography allowed for intraoperative localization of the intracardiac muscular structures to identify the optimal cannulation site. The acute angle of the inflow cannula on the DeBakey LVAD (MicroMed Technology, Houston, TX) required flipping the device 180Ā°. The HeartMate II device (Thoratec, Pleasanton, CA) could be shifted towards the midline. One patient underwent successful transplant and 2 are home waiting for a donor organ. We conclude from our experience that LVAD surgery can be safely performed in patients with congenital heart disease when implanted under echocardiographic guidance.


Subject(s)
Cardiovascular Surgical Procedures/methods , Heart Failure/etiology , Heart Failure/surgery , Heart-Assist Devices , Transposition of Great Vessels/complications , Adult , Echocardiography, Transesophageal , Female , Humans , Male , Radiography, Thoracic , Transposition of Great Vessels/diagnostic imaging , Transposition of Great Vessels/genetics , Treatment Outcome
15.
J Cardiovasc Transl Res ; 2(2): 219-24, 2009 Jun.
Article in English | MEDLINE | ID: mdl-20559990

ABSTRACT

Pediatric Cardiac Care Consortium is a registry of cardiac catheterizations, surgical operations, and autopsies performed for infants, children, and adults with congenital heart disease. Four examples of use of PCCC data to evaluate variability in morphology, management, and outcomes for the procedures are described. Consideration is given to the following clinical problems: (1) the experience with surgical heart block in operative closure of perimembranous VSD, (2) the transition away from atrial baffle operations to the arterial switch operation for simple transposition of the great arteries, (3) the experience of planned 3 stage palliation of hypoplastic left heart syndrome, and (4) the identification of a high risk combination of cardiovascular anomalies in Williams syndrome. Analysis of registry outcomes allows ongoing quality improvement at a cardiac center to consider not only its own experience but that of the overall group. The PCCC data can be used to personalize management of rare congenital cardiac anomalies and combinations of anomalies. The PCCC registry allows longitudinal consideration of issues such as staged repairs and incidence of unplanned reoperation. In future years, the PCCC can facilitate investigations into the etiology of congenital heart disease.


Subject(s)
Cardiac Catheterization , Cardiac Surgical Procedures , Decision Support Systems, Clinical , Heart Defects, Congenital/therapy , Quality Indicators, Health Care , Adolescent , Adult , Autopsy , Cardiac Catheterization/adverse effects , Cardiac Catheterization/mortality , Cardiac Pacing, Artificial , Cardiac Surgical Procedures/adverse effects , Cardiac Surgical Procedures/mortality , Child , Child, Preschool , Female , Heart Block/etiology , Heart Block/therapy , Heart Defects, Congenital/diagnosis , Heart Defects, Congenital/genetics , Heart Defects, Congenital/mortality , Heart Septal Defects, Ventricular/therapy , Humans , Hypoplastic Left Heart Syndrome/surgery , Infant , Male , Odds Ratio , Patient Selection , Program Development , Registries , Risk Assessment , Risk Factors , Time Factors , Transposition of Great Vessels/surgery , Treatment Outcome , United States , Williams Syndrome/genetics , Williams Syndrome/therapy , Young Adult
16.
J Thorac Cardiovasc Surg ; 136(3): 749-56, 2008 Sep.
Article in English | MEDLINE | ID: mdl-18805281

ABSTRACT

OBJECTIVE: At the severe end of the spectrum of infants with pulmonary atresia and intact ventricular septum, the likelihood of significant right ventricle to coronary artery connections increases. Our purpose is to present the first series of right ventricle to coronary artery connections ligated off bypass before right ventricular decompression and to evaluate the consequences of this approach. METHODS: From 1988 to 2007, 19 patients with pulmonary atresia and intact ventricular septum had a total of 69 right ventricle to coronary artery connections identified preoperatively, and 10 more were located intraoperatively. Of these, 71 were judged large enough to warrant off-pump direct ligation. Preoperative diagnosis was by transthoracic echocardiography and angiography. Transesophageal and surface echocardiography were used for intraoperative location. Direct visualization and echocardiographic assessment for regional wall motion abnormalities determined the effects of ligation. Right ventricular decompression was done in all patients. RESULTS: After ligation, coronary flow converted from moderately or largely retrograde to antegrade perfusion. Ligation produced no visual myocardial consequences or immediate local wall motion abnormalities. For 3 patients, however, apical-septal wall motion abnormalities appeared from 2 hours to 3 days postoperatively. Serial studies were done to assess the later effects in the 16 of 19 30-day survivors. No evidence for myocardial injury was found, and all continued on a 2-ventricle repair course. CONCLUSION: The location and ligation of right ventricle to coronary artery connections can be reliably accomplished off bypass. Coronary flow became antegrade, improving myocardial oxygenation. No myocardial damage was observed. Inapparent right ventricle to coronary artery connections occasionally enlarge secondarily after right ventricular decompression, making early follow-up evaluation necessary after ligation. Despite the initial presence of significant right ventricle to coronary artery connections, 2-ventricle repairs are possible with long-term benefits.


Subject(s)
Coronary Vessel Anomalies/surgery , Coronary Vessels/surgery , Heart Ventricles/surgery , Pulmonary Atresia/surgery , Cardiac Surgical Procedures/methods , Child, Preschool , Coronary Angiography , Echocardiography , Echocardiography, Transesophageal , Heart Septum , Heart Ventricles/abnormalities , Humans , Infant , Infant, Newborn , Ligation , Pulmonary Atresia/complications , Treatment Outcome , Tricuspid Valve/abnormalities
17.
J Am Coll Cardiol ; 50(12): 1196-200, 2007 Sep 18.
Article in English | MEDLINE | ID: mdl-17868813

ABSTRACT

OBJECTIVES: This study sought to discover the incidence of permanent pacemaker (PPM) placement for atrioventricular conduction block (AV block) after operative repair of perimembranous ventricular septal defect (PMVSD) in a large multi-institutional database and in the subgroup of patients comparable to those considered for transcatheter device closure of PMVSD. BACKGROUND: Atrioventricular conduction block is a complication of operative repair of PMVSD and of device closure of this defect. Earlier reports do not report the incidence of AV block by VSD type. METHODS: The Pediatric Cardiac Care Consortium database was searched for all children who had operative PMVSD repair except those with abnormalities that increase risk of AV block. The patient group was searched for those with subsequent PPM placement for AV block. Demographic data and time to PPM placement were available for all patients. RESULTS: Of 4,432 patients with PMVSD repair, 48 (1.1%) underwent PPM placement for AV block. The PPM group was more likely to have Down syndrome (41% vs. 18%; p < 0.001), was younger (mean age 14 vs. 26 months; p < 0.001), and had longer mean length of postoperative hospital stays (20 vs. 8 days; p < 0.001). The most significant risk factor for AV block was Down syndrome (odds ratio 3.62, 95% confidence interval 2.02 to 6.39; p < 0.005). Modal time to PPM placement was 7 days (range 0 to 4,078 days). Out of 1,877 patients comparable to those currently considered for device closure, 13 (0.8%) underwent PPM placement after PMVSD repair. CONCLUSIONS: Operative AV block and PPM placement occurred in 1.1% of patients in the total group and in 0.8% of patients comparable to those considered for device closure of PMVSD. A PPM placement is more likely in patients with Down syndrome. These data should be considered as devices are developed and in the future when counseling families about options for PMVSD closure.


Subject(s)
Cardiac Surgical Procedures/adverse effects , Heart Block/therapy , Heart Septal Defects, Ventricular/surgery , Pacemaker, Artificial , Analysis of Variance , Cardiac Surgical Procedures/methods , Child, Preschool , Cohort Studies , Female , Follow-Up Studies , Heart Block/etiology , Heart Septal Defects, Ventricular/diagnostic imaging , Heart Septal Defects, Ventricular/mortality , Humans , Infant , Male , Multivariate Analysis , Odds Ratio , Postoperative Complications/therapy , Probability , Proportional Hazards Models , Registries , Risk Assessment , Survival Analysis , Treatment Outcome , Ultrasonography
18.
Acad Emerg Med ; 12(3): 257-61, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15741591

ABSTRACT

Children with special health care needs require special advanced planning for their unique emergencies. A Web site has been developed to allow secure Internet access to a database of Emergency Information Forms developed using the American College of Emergency Physicians/American Academy of Pediatrics format. The content and organization of the Web site, found at http://www.memscis.org, are described. A tour of the site is available. A set of XML data elements has been defined. Additional disaster preparedness elements have been added to the American College of Emergency Physicians/American Academy of Pediatrics Emergency Information Forms. The organization, security, and relationship of the site to electronic health records are described.


Subject(s)
Database Management Systems/instrumentation , Emergency Medicine/organization & administration , Forms and Records Control/methods , Forms and Records Control/organization & administration , Internet , Pediatrics/organization & administration , Societies, Medical , Data Collection/methods , Health Insurance Portability and Accountability Act , Humans , Information Services/instrumentation , Medical Records Systems, Computerized/instrumentation , United States
19.
Pediatrics ; 114(6): e761-5, 2004 Dec.
Article in English | MEDLINE | ID: mdl-15574608

ABSTRACT

Available literature suggests a need for both initial cardiopulmonary resuscitation training and refresher courses. The establishment of a pediatric chain of survival for victims of cardiopulmonary arrest is the focus of this technical report and is advocated in the accompanying policy statement. Immediate bystander cardiopulmonary resuscitation for victims of cardiac arrest improves survival for out-of-hospital cardiac arrest. Pediatricians will improve the chance of survival of children and adults who experience cardiac arrest by advocating for basic life support training and participating in basic life support courses as participants and teachers.


Subject(s)
Cardiopulmonary Resuscitation/education , Health Education , Pediatrics , Physician's Role , Adult , Child , Heart Arrest/therapy , Humans , Parents
20.
Pediatrics ; 114(6): 1676, 2004 Dec.
Article in English | MEDLINE | ID: mdl-15574634

ABSTRACT

Available literature suggests a need for both initial cardiopulmonary resuscitation basic life support training and refresher courses for parents and the public as well as health care professionals. The promotion of basic life support training courses that establish a pediatric chain of survival spanning from prevention of cardiac arrest and trauma to rehabilitative and follow-up care for victims of cardiopulmonary arrest is advocated in this policy statement and is the focus of an accompanying technical report. Immediate bystander cardiopulmonary resuscitation for victims of cardiac arrest improves survival for out-of-hospital cardiac arrest. Pediatricians will improve the chance of survival of children and adults who experience cardiac arrest by advocating for cardiopulmonary resuscitation training and participating in basic life support training courses as participants and instructors.


Subject(s)
Cardiopulmonary Resuscitation/education , Pediatrics , Physician's Role , Health Education , Humans , Organizational Policy , Parents , Societies, Medical , United States
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