Accurate and efficient rapid acquisition early post-injection stress-first CZT SPECT myocardial perfusion imaging with tetrofosmin and attenuation correction.

Introduction: Myocardial perfusion imaging (MPI) protocols have not changed significantly despite advances in instrumentation and software. We compared an early post-injection, stress-first SPECT protocol to standard delayed imaging.

Methods: 95 patients referred for SPECT MPI were imaged upright and supine on a Spectrum Dynamics D-SPECT CZT system with CT attenuation correction.

Correlation of Relative Value Units With Surgical Complexity and Physician Workload: A Contemporary Nationwide Analysis of Orthopaedic Procedures.

Introduction: Although previous studies have demonstrated inconsistencies between surgeon work and reimbursement, no previous study has calculated expected relative value units (RVUs) based on procedure-specific variables. Our study aimed to evaluate how measures of physician workload and surgical complexity correlate with the work RVUs (wRVUs) assigned to orthopaedic procedures and compare our predicted wRVUs with actual wRVUs.

Methods: The National Surgical Quality Improvement Program was used to identify orthopaedic surgeries with the highest procedural volume in 2019.

Impact of COVID-19 on Admissions and Outcomes for Children With Complex Chronic Conditions.

Background: Although pediatric health care use declined during the coronavirus disease 2019 (COVID-19) pandemic, the impact on children with complex chronic conditions (CCCs) has not been well reported.

Objective: To describe the impact of the pandemic on inpatient use and outcomes for children with CCCs.

Methods: This multicenter cross-sectional study used data from the Pediatric Health Information System.

Qualitative indications for tracheostomy and chronic mechanical ventilation in patients with severe bronchopulmonary dysplasia.

Background: The decision to pursue chronic mechanical ventilation involves a complex mix of clinical and social considerations. Understanding the medical indications to pursue tracheostomy would reduce the ambiguity for both providers and families and facilitate focus on appropriate clinical goals.

Objective: To describe potential indications to pursue tracheostomy and chronic mechanical ventilation in infants with severe BPD (sBPD).

Readmissions Following Hospitalization for Infection in Children With or Without Medical Complexity.

Objective: To describe the prevalence and characteristics of infection-related readmissions in children and to identify opportunities for readmission reduction and estimate associated cost savings.

Study Design: Retrospective analysis of 380,067 nationally representative index hospitalizations for children using the 2014 Nationwide Readmissions Database. We compared 30-day, all-cause unplanned readmissions and costs across 22 infection categories.

Health-related quality of life in children with chronic kidney disease is affected by the number of medications.

Introduction: The number of medications could serve as a surrogate for burden of care at home and may affect health-related quality of life (HRQoL) in children with chronic kidney disease (CKD).

Methods: Using baseline data from the Chronic Kidney Disease in Children (CKiD) Study, we modeled HRQoL scores, self-reported by the child (if ≥ 8 years old) and/or caregiver (all children) on unique counts and administrations of CKD- and non-CKD-related medications, using multivariate linear regression. Heterogeneity of associations between HRQoL and medication burden by age group (≥ 8 vs.

Initial Invasive or Conservative Strategy for Stable Coronary Disease.

Background: Among patients with stable coronary disease and moderate or severe ischemia, whether clinical outcomes are better in those who receive an invasive intervention plus medical therapy than in those who receive medical therapy alone is uncertain.

Methods: We randomly assigned 5179 patients with moderate or severe ischemia to an initial invasive strategy (angiography and revascularization when feasible) and medical therapy or to an initial conservative strategy of medical therapy alone and angiography if medical therapy failed. The primary outcome was a composite of death from cardiovascular causes, myocardial infarction, or hospitalization for unstable angina, heart failure, or resuscitated cardiac arrest.

The conchal butterfly graft in secondary reconstruction of the bilateral cleft lip nasal deformity.

Objectives: The bilateral cleft nasal deformity is characterized by a short columella and a broad, flattened nasal tip. Secondary correction is challenging and often complicated by skin envelope scarring and hypoplastic alar cartilages. Adequate and durable tip projection requires a procedure that adequately augments the nasal tip and maximizes tip support.

Impact of tracheostomy on language and cognitive development in infants with severe bronchopulmonary dysplasia.

Objective: The impact of tracheostomy on language and cognitive development in infants with severe bronchopulmonary dysplasia (BPD) is not known. We hypothesize that tracheostomy has an independent negative impact on language and cognitive development in infants with severe BPD.

Study Design: This is a retrospective cohort study of de-identified data of infants with severe BPD who received tracheostomy at <2 years of age, compared with infants with severe BPD without tracheostomy.

National Cooperative Growth Study: 25 Years of Growth Hormone Data, Insights, and Lessons for Future Registries.

Background: The National Cooperative Growth Study (NCGS) data are reviewed from 1985-2010 to report on final demographic, efficacy, and safety findings, and to illustrate the value of long-term, real-world follow-up to physicians and patients.

Methods: The NCGS was a multicenter, open-label, observational, postmarketing surveillance study of Genentech growth hormone (GH) products for the treatment of children with growth failure in North America.

Findings: Data from 65,205 patients representing 240,951 patient-years of experience were collected.

Prognostic neurodevelopmental testing of preterm infants: do we need to change the paradigm?

Longitudinal follow-up with assessment of developmental status at about 2 years of age is routine for high-risk newborns. The results of these assessments can be used for many purposes, including helping physicians, parents, and teachers plan educational or developmental interventions. These assessments also provide outcome measures for clinical research studies.

International Consensus (ICON): allergic reactions to vaccines.

Background: Routine immunization, one of the most effective public health interventions, has effectively reduced death and morbidity due to a variety of infectious diseases. However, allergic reactions to vaccines occur very rarely and can be life threatening. Given the large numbers of vaccines administered worldwide, there is a need for an international consensus regarding the evaluation and management of allergic reactions to vaccines.

Nurses' accuracy and self-perceived ability using the Emergency Severity Index triage tool: a cross-sectional study in four Swiss hospitals.

Background: The Emergency Severity Index (ESI) is an English language emergency department patient triage tool. After translation, it has been adapted for use to triage patients in growing numbers of emergency departments in non-English-speaking countries. Few reports of the proficiency of triage nurses to score an ESI exist.

Lifestyle Choices Fuel Epidemics of Diabetes and Cardiovascular Disease Among Asian Indians.

Within the next 15years, India is projected to overtake China as the world's most populous nation. Due to the rapid pace of urbanization and modernization fueling population growth, in conjunction with a genetic predisposition to insulin resistance, India is suffering a rising epidemic of non-communicable diseases (NCDs), including coronary artery disease (CAD), type 2 diabetes mellitus (T2DM), and stroke. In addition to the genetic predisposition, major negative lifestyle factors are contributing to the alarming outbreak of cardiovascular disease (CVD) among the Asian Indian population; these factors include: 1) a diet high in added sugar, refined grains and other processed foods, 2) physical inactivity, 3) vitamin D deficiency (VDD), and 4) smoking/pollution.

Safety and Effectiveness of Whole Body Cooling Therapy for Neonatal Encephalopathy on Transport.

Objective: The purpose of this study was to evaluate the safety and effectiveness of a transport protocol using active and passive methods for therapeutic whole body cooling of the neonate with hypoxic-ischemic encephalopathy.

Methods: A retrospective study of neonates who received whole body cooling during transport by our pediatric/neonatal transport team between December 2008 and April 2012 was conducted.

Results: Sixty-three of 66 (95%) neonates arrived within a safety temperature range of 33.

Mechanical Dyssynchrony and Abnormal Regional Strain Promote Erroneous Measurement of Systolic Function in Pediatric Heart Transplantation.

Background: Clinical experience suggests that measurement of left ventricular (LV) ejection fraction (EF) using two-dimensional echocardiography (2DE) is often at variance with results of three-dimensional echocardiography (3DE) in patients who have undergone heart transplantation (HT). The aim of this study was to test the hypothesis that LV mechanical dyssynchrony and abnormal regional strain are present in asymptomatic pediatric HT patients and that they promote errors in the measurement of LV function when 2DE is used.

Methods: HT subjects and normal volunteer children were prospectively enrolled.

Inhaled nitric oxide usage in preterm infants in the NICHD Neonatal Research Network: inter-site variation and propensity evaluation.

Objective: The use of inhaled nitric oxide (iNO) in preterm infants remains controversial. In October 2010, a National Institutes of Health consensus development conference cautioned against use of iNO in preterm infants. This study aims (1) to determine the prevalence and variability in use of iNO in the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network (NICHD NRN) before and after the consensus conference and (2) separately, to examine associations between iNO use and severe bronchopulmonary dysplasia (BPD) or death.

Obesity: the 'huge' problem in cardiovascular diseases.

Obesity is an epidemic in the United States. It is an independent risk factor for cardiovascular diseases and associated with reduced life expectancy. The adverse effects are related to direct impact of obesity on cardiovascular system and indirectly through its influence on risk factors.

Pediatric resident education in quality improvement (QI): a national survey.

Objective: To assess pediatric residents' perceptions of their quality improvement (QI) education and training, including factors that facilitate learning QI and self-efficacy in QI activities.

Methods: A 22-question survey questionnaire was developed with expert-identified key topics and iterative pretesting of questions. Third-year pediatric residents from 45 residency programs recruited from a random sample of 120 programs.

The genetic basis of DOORS syndrome: an exome-sequencing study.

Background: Deafness, onychodystrophy, osteodystrophy, mental retardation, and seizures (DOORS) syndrome is a rare autosomal recessive disorder of unknown cause. We aimed to identify the genetic basis of this syndrome by sequencing most coding exons in affected individuals.

Methods: Through a search of available case studies and communication with collaborators, we identified families that included at least one individual with at least three of the five main features of the DOORS syndrome: deafness, onychodystrophy, osteodystrophy, intellectual disability, and seizures.

Lifetime cardiovascular risk of childhood obesity.

An increase in the incidence and an earlier onset of coronary artery disease is expected because of the increased prevalence of childhood obesity. Comorbidities of obesity, such as dyslipidemia, insulin resistance syndrome, hypertension, associated nutritional deficiencies, and a sedentary lifestyle or associated lifestyle factors such as tobacco smoke exposure, are likely to account for this increase because these are all independent risk factors for accelerated atherosclerosis. Because clinical atherosclerotic cardiovascular disease does not manifest in obese children, assessment of the subclinical markers of atherosclerosis may help in the evaluation of the progression of atherosclerosis, in further stratification of risk, and in monitoring the effects of intervention.