First name
David
Last name
Munson

Title

Inhaled Nitric Oxide Is Associated with Improved Oxygenation in a Subpopulation of Infants with Congenital Diaphragmatic Hernia and Pulmonary Hypertension.

Year of Publication

2020

Number of Pages

167-172

Date Published

2020 04

ISSN Number

1097-6833

Abstract

<p><strong>OBJECTIVES: </strong>To determine which patients with congenital diaphragmatic hernia (CDH) and pulmonary hypertension (PH) benefit from inhaled nitric oxide (iNO) treatment by comparing characteristics and outcomes of iNO responders to nonresponders.</p>

<p><strong>STUDY DESIGN: </strong>We performed a retrospective chart review of infants with CDH treated at our center between 2011 and 2016. In a subset of patients, iNO was initiated for hypoxemia or echocardiographic evidence of extrapulmonary right to left shunting. Initial post-treatment blood gases were reviewed, and patients were classified as responders (increased PaO &gt;20&nbsp;mm Hg) or nonresponders. Baseline characteristics, echocardiograms and outcomes were compared between groups with Fisher exact tests and Mann-Whitney t tests, as appropriate.</p>

<p><strong>RESULTS: </strong>During the study period, 95 of 131 patients with CDH (73%) were treated with iNO. All patients with pretreatment echocardiograms (n&nbsp;=&nbsp;90) had echocardiographic evidence of PH. Thirty-eight (40%) patients met treatment response criteria. Responders had significant improvements in PaO (51&nbsp;±&nbsp;3 vs 123&nbsp;±&nbsp;7&nbsp;mm Hg, P &lt; .01), alveolar-arterial gradient (422&nbsp;±&nbsp;30 vs 327&nbsp;±&nbsp;27&nbsp;mm Hg, P &lt; .01), and PaO to FiO ratio (82&nbsp;±&nbsp;10 vs 199&nbsp;±&nbsp;15&nbsp;mm Hg, P &lt; .01). Nonresponders were more likely to have left ventricular systolic dysfunction (27% vs 8%, P&nbsp;=&nbsp;.03) on echocardiogram. Responders were less likely to require extracorporeal membrane support (50 vs 24%, P&nbsp;=&nbsp;.02).</p>

<p><strong>CONCLUSIONS: </strong>iNO treatment is associated with improved oxygenation and reduced need for ECMO in a subpopulation of patients with CDH with PH and normal left ventricular systolic function.</p>

DOI

10.1016/j.jpeds.2019.09.052

Alternate Title

J Pediatr

PMID

31706636

Title

Influence of Genetic Information on Neonatologists' Decisions: A Psychological Experiment.

Year of Publication

2022

Date Published

2022 Feb 16

ISSN Number

1098-4275

Abstract

<p><strong>BACKGROUND AND OBJECTIVES: </strong>Genetic testing is expanding among ill neonates, yet the influence of genetic results on medical decision-making is not clear. With this study, we sought to determine how different types of genetic information with uncertain implications for prognosis influence clinicians' decisions to recommend intensive versus palliative care.</p>

<p><strong>METHODS: </strong>We conducted a national study of neonatologists using a split sample experimental design. The questionnaire contained 4 clinical vignettes. Participants were randomly assigned to see one of 2 versions that varied only regarding whether they included the following genetic findings: (1) a variant of uncertain significance; (2) a genetic diagnosis that affects neurodevelopment but not acute survival; (3) a genetic versus nongenetic etiology of equally severe pathology; (4) a pending genetic testing result. Physicians answered questions about recommendations they would make for the patient described in each vignette.</p>

<p><strong>RESULTS: </strong>Vignette versions that included a variant of uncertain significance, a diagnosis foreshadowing neurodevelopmental impairment, or a genetic etiology of disease were all associated with an increased likelihood of recommending palliative rather than intensive care. A pending genetic test result did not have a significant effect on care recommendations.</p>

<p><strong>CONCLUSIONS: </strong>Findings from this study of hypothetical cases suggest neonatologists apply uncertain genetic findings or those that herald neurodevelopmental disability in problematic ways. As genetic testing expands, understanding how it is used in decision-making and educating clinicians regarding appropriate use are paramount.</p>

DOI

10.1542/peds.2021-052130

Alternate Title

Pediatrics

PMID

35169841

Title

Incidence and fate of device-related left pulmonary artery stenosis and aortic coarctation in small infants undergoing transcatheter patent ductus arteriosus closure.

Year of Publication

2020

Date Published

2020 Apr 27

ISSN Number

1522-726X

Abstract

<p><strong>OBJECTIVES: </strong>To evaluate short- and middle-term outcomes after transcatheter patent ductus arteriosus (TC-PDA) closure in small infants, specifically device-related left pulmonary artery (LPA) stenosis and aortic coarctation, risk factors, and changes over time.</p>

<p><strong>BACKGROUND: </strong>Recent studies have demonstrated successful transcatheter PDA (TC-PDA) closure in small infants. LPA stenosis and aortic coarctation have been seen after TC-PDA, but it is not clear whether device-related LPA/aortic obstruction persists.</p>

<p><strong>METHODS: </strong>A single-center retrospective study of infants ≤4 kg who underwent TC-PDA closure from February 1, 2007 to September 1, 2018 was performed, evaluating the incidence and risk factors for LPA stenosis and coarctation.</p>

<p><strong>RESULTS: </strong>Forty-four patients underwent successful TC-PDA with Amplatzer Vascular Plug II (AVPII; n = 30), Amplatzer Duct Occluder II-Additional Sizes (n = 10), Amplatzer Duct Occluder I (n = 3), and coil-filled AVPI (n = 1) devices, all via an antegrade approach. Median birthweight and procedural weight were 890 g (range: 490-3,250) and 2.8 kg (range: 1.2-4.0), respectively. Median follow-up was 0.7 years (range: 2 days-7 years). Thirty-eight patients had post-procedure echocardiograms assessing LPA/aortic obstruction. Of those, 17 had LPA flow acceleration/stenosis (≥1.5 m/s), which improved or resolved in all patients with available follow-up; 3 developed mild coarctation (&gt;2 m/s), which improved in the two with more than short-term follow-up; 4 developed mild flow acceleration (1.5-2 m/s) in the descending aorta, which resolved in three and increased in one (2.4 m/s). Flow acceleration in the LPA was associated with younger procedural age, larger PDA minimal diameter, and placement of a device other than the AVPII. There was no device-related mortality or need for reintervention.</p>

<p><strong>CONCLUSION: </strong>TC-PDA in small infants is effective, without significant complications. Device-related LPA/aortic obstruction can improve with time/growth.</p>

DOI

10.1002/ccd.28942

Alternate Title

Catheter Cardiovasc Interv

PMID

32339400

Title

Individualising care in severe bronchopulmonary dysplasia: a series of N-of-1 trials comparing transpyloric and gastric feeding.

Year of Publication

2019

Date Published

2019 Nov 04

ISSN Number

1468-2052

Abstract

<p><strong>OBJECTIVE: </strong>Compare rates of hypoxaemia during transpyloric and gastric feedings in very preterm infants with severe bronchopulmonary dysplasia.</p>

<p><strong>DESIGN: </strong>N-of-1 multiple crossover trials with individual patient and pooled data analyses.</p>

<p><strong>SETTING: </strong>Level IV intensive care nursery.</p>

<p><strong>PATIENTS: </strong>Infants receiving positive airway pressure between 36 and 55 weeks postmenstrual age were enrolled between December 2014-July 2016.</p>

<p><strong>INTERVENTION: </strong>N-of-1 trial consisting of two blocks, each with a 4-day gastric and 4-day transpyloric feeding period assigned in random order.</p>

<p><strong>MAIN OUTCOME MEASURES: </strong>The primary outcome was the frequency of daily intermittent hypoxaemic events (SpO ≤80% lasting 10-180 s). Secondary outcomes included the daily proportion of time with an SpO ≤80% and mean daily fraction of inspired oxygen.</p>

<p><strong>RESULTS: </strong>Of 15 infants, 13 completed the trial and 2 stopped early for transient worsening in respiratory status during gastric feedings. In the intention-to-treat analyses, transpyloric feedings resulted in increased rates of intermittent hypoxaemia in five infants, greater time per day in hypoxaemia in three infants and more supplemental oxygen use in three infants. One infant received more supplemental oxygen during gastric feedings. The remaining study outcomes were similar between the feeding routes in all other infants. Pooling all data, transpyloric feedings resulted in a higher frequency of intermittent hypoxaemic events (median 7.5/day (IQR 1-23.5) vs 3/day (1-11); adjusted incidence rate ratio 1.8, 95% CI 1.3 to 2.5) and a greater proportion of daily hypoxaemia time (median 0.8% (IQR 0.1-2.3) vs 0.4% (0.07-1.8); adjusted mean difference 1.6, 95% CI 1.1 to 2.5).</p>

<p><strong>CONCLUSIONS: </strong>Transpyloric compared with gastric feedings modestly increased rates of hypoxaemia among study participants.</p>

<p><strong>TRIAL REGISTRATION NUMBER: </strong>NCT02142621.</p>

DOI

10.1136/archdischild-2019-317148

Alternate Title

Arch. Dis. Child. Fetal Neonatal Ed.

PMID

31685527

Title

Trends in transcatheter and operative closure of patent ductus arteriosus in neonatal intensive care units: Analysis of data from the Pediatric Health Information Systems Database.

Year of Publication

2019

Number of Pages

121-130

Date Published

2019 Aug 17

ISSN Number

1097-6744

Abstract

<p><strong>BACKGROUND: </strong>The risks and benefits of pharmacologic treatment and operative closure of patent ductus arteriosus (O-PDA) in premature infants remain controversial. Recent series have demonstrated the feasibility of transcatheter PDA closure (TC-PDA) in increasingly small infants. The effect of this change on practice has not been evaluated.</p>

<p><strong>METHODS: </strong>A multicenter observational study of infants treated in neonatal intensive care units in hospitals contributing data to the Pediatric Health Information Systems Database from January 2007 to December 2017 was performed to study trends in the propensities for (1) mechanical closure of PDA and (2) TC-PDA versus O-PDA, as well as interhospital variation in practice.</p>

<p><strong>RESULTS: </strong>A total of 6,214 subjects at 44 hospitals were studied (5% TC-PDA). Subject median gestational age was 25 weeks (interquartile range: 24-27 weeks). Median age at closure was 24 days (interquartile range: 14-36 days). The proportion of all neonatal intensive care unit patients undergoing either O-PDA or TC-PDA decreased (3.1% in 2007 and 0.7% in 2017, P &lt; .001), whereas the proportion in which TC-PDA was used increased significantly (0.1% in 2007 to 29.0% in 2017). Case-mix-adjusted multivariable models similarly demonstrated increasing propensity to pursue TC-PDA (odds ratio [OR] 1.66 per year, P &lt; .001) with acceleration of the trend after 2014 (OR 2.46 per year, P &lt; .001) as well as significant practice variation (P &lt; .001, median OR 4.6) across the study period.</p>

<p><strong>CONCLUSIONS: </strong>In the face of decreasing closure of PDA, the use of TC-PDA increased dramatically with significant practice variability. This demonstrates that there is equipoise for potential clinical trials.</p>

DOI

10.1016/j.ahj.2019.08.009

Alternate Title

Am. Heart J.

PMID

31654942

Title

Outbreak of Adenovirus in a Neonatal Intensive Care Unit: Critical Importance of Equipment Cleaning During Inpatient Ophthalmologic Examinations.

Year of Publication

2018

Date Published

2018 Sep 01

ISSN Number

1549-4713

Abstract

<p><strong>PURPOSE: </strong>Outbreaks of adenovirus in neonatal intensive care units (NICUs) can lead to widespread transmission and serious adverse outcomes. We describe the investigation, response, and successful containment of an adenovirus outbreak in a NICU associated with contaminated handheld ophthalmologic equipment used during retinopathy of prematurity (ROP) screening.</p>

<p><strong>DESIGN: </strong>Epidemiologic outbreak investigation.</p>

<p><strong>PARTICIPANTS: </strong>A total of 23 hospitalized neonates, as well as NICU staff and parents of affected infants.</p>

<p><strong>MAIN OUTCOME MEASURES: </strong>Routine surveillance identified an adenovirus outbreak in a level IV NICU in August 2016. Epidemiologic investigation followed, including chart review, staff interviews, and observations. Cases were defined as hospital-acquired adenovirus identified from any clinical specimen (NICU patient or employee) or compatible illness in a family member. Real-time polymerase chain reaction (PCR) and partial- and whole-genome sequencing assays were used for testing of clinical and environmental specimens.</p>

<p><strong>RESULTS: </strong>We identified 23 primary neonatal cases and 9 secondary cases (6 employees and 3 parents). All neonatal case-patients had respiratory symptoms. Of these, 5 developed pneumonia and 12 required increased respiratory support. Less than half (48%) had ocular symptoms. All neonatal case-patients (100%) had undergone a recent ophthalmologic examination, and 54% of neonates undergoing examinations developed adenovirus infection. All affected employees and parents had direct contact with infected neonates. Observations revealed inconsistent disinfection of bedside ophthalmologic equipment and limited glove use. Sampling of 2 handheld lenses and 2 indirect ophthalmoscopes revealed adenovirus serotype 3 DNA on each device. Sequence analysis of 16 neonatal cases, 2 employees, and 2 lenses showed that cases and equipment shared 100% identity across the entire adenovirus genome. Infection control interventions included strict hand hygiene, including glove use; isolation precautions; enhanced cleaning of lenses and ophthalmoscopes between all examinations; and staff furlough. We identified no cases of secondary transmission among neonates.</p>

<p><strong>CONCLUSIONS: </strong>Adenovirus outbreaks can result from use of contaminated ophthalmologic equipment. Even equipment that does not directly contact patients can facilitate indirect transmission. Patient-to-patient transmission can be prevented with strict infection control measures and equipment cleaning. Ophthalmologists performing inpatient examinations should take measures to avoid adenoviral spread from contaminated handheld equipment.</p>

DOI

10.1016/j.ophtha.2018.07.008

Alternate Title

Ophthalmology

PMID

30180976

Title

Integration of palliative care into the care of children with serious illness.

Year of Publication

2014

Number of Pages

318-25; quiz 326

Date Published

2014 Aug

ISSN Number

1526-3347

DOI

10.1542/pir.35-8-318

Alternate Title

Pediatr Rev

PMID

25086163

Title

Regoaling: a conceptual model of how parents of children with serious illness change medical care goals.

Year of Publication

2014

Number of Pages

9

Date Published

03/2014

ISSN Number

1472-684X

Abstract

<p><strong>BACKGROUND: </strong>Parents of seriously ill children participate in making difficult medical decisions for their child. In some cases, parents face situations where their initial goals, such as curing the condition, may have become exceedingly unlikely. While some parents continue to pursue these goals, others relinquish their initial goals and generate new goals such as maintaining the child's quality of life. We call this process of transitioning from one set of goals to another regoaling.</p>

<p><strong>DISCUSSION: </strong>Regoaling involves factors that either promote or inhibit the regoaling process, including disengagement from goals, reengagement in new goals, positive and negative affect, and hopeful thinking. We examine these factors in the context of parental decision making for a seriously ill child, presenting a dynamic conceptual model of regoaling. This model highlights four research questions that will be empirically tested in an ongoing longitudinal study of medical decision making among parents of children with serious illness. Additionally, we consider potential clinical implications of regoaling for the practice of pediatric palliative care.</p>

<p><strong>SUMMARY: </strong>The psychosocial model of regoaling by parents of children with a serious illness predicts that parents who experience both positive and negative affect and hopeful patterns of thought will be more likely to relinquish one set of goals and pursue a new set of goals. A greater understanding of how parents undergo this transition may enable clinicians to better support them through this difficult process.</p>

DOI

10.1186/1472-684X-13-9

Alternate Title

BMC Palliat Care

PMID

24625345

Title

Pediatric exposure to opioid and sedation medications during terminal hospitalizations in the United States, 2007-2011.

Year of Publication

2015

Number of Pages

587-93.e1

Date Published

03/2015

ISSN Number

1097-6833

Abstract

<p><strong>OBJECTIVE: </strong>To describe the use of opioids and sedatives to pediatric patients dying in the hospital in the 2 weeks preceding death.</p>

<p><strong>STUDY DESIGN: </strong>We conducted a retrospective study on opioid and sedation medication exposure among children who die in hospitals in the US by using large administrative data sources. We described patterns of exposure to these medications for deceased inpatients (&lt;21 years of age) between 2007 and 2011 (n = 37,459) and factors associated with the exposure. Multivariable logistic regression models were used to estimate the ORs.</p>

<p><strong>RESULTS: </strong>Overall, 74% patients were exposed to opioids or sedatives in the 14 days before death. Among patients with 6 or more hospital days before death, the daily exposure rate ranged from 73% (the sixth day before death) to 89% (the day of death). The most commonly used medications were fentanyl (52%), midazolam (44%), and morphine (40%). Older age (ORs 1.6-3.7), black race (ORs 0.8), longer hospital stay (ORs 6.6-9.3), receiving medical interventions (including mechanical ventilation, surgery, and stay in the intensive care unit, ORs 1.7-2.6), having comorbidities (ORs 1.7-2.4), and being hospitalized in children's hospitals (ORs 4.0-4.5) were associated with exposure of opioid and sedation medication on adjusted analysis.</p>

<p><strong>CONCLUSION: </strong>Although most pediatric patients terminally hospitalized are exposed to opioid and sedation medication, some patients do not receive such medications before death. Given that patient and hospital characteristics were associated with opioid/sedative exposure, these findings suggest areas of potential quality improvement and further research.</p>

DOI

10.1016/j.jpeds.2014.10.017

Alternate Title

J. Pediatr.

PMID

25454928

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