66 results on '"Christopher E, Colby"'
Search Results
2. Provider Perspectives on the Acceptability, Appropriateness, and Feasibility of Teleneonatology
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Jeph Herrin, Mark D. Lo, Abhishek Makkar, Jamie Limjoco, Jennifer L. Fang, Christopher E. Colby, Robert M. Jacobson, Rosanna Yankanah, Hilary Whyte, Michael McCoy, Rachel A. Umoren, and Bart M. Demaerschalk
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medicine.medical_specialty ,Telemedicine ,business.industry ,MEDLINE ,Obstetrics and Gynecology ,Survey result ,Positive perception ,Intensive care ,Scale (social sciences) ,Family medicine ,Pediatrics, Perinatology and Child Health ,medicine ,Special care ,Level ii ,business - Abstract
We aimed to measure provider perspectives on the acceptability, appropriateness, and feasibility of teleneonatology in neonatal intensive care units (NICUs) and community hospitals. Providers from five academic tertiary NICUs and 27 community hospitals were surveyed using validated implementation measures to assess the acceptability, appropriateness, and feasibility of teleneonatology. For each of the 12 statements, scale values ranged from 1 to 5 (1 = strongly disagree; 5 = strongly agree), with higher scores indicating greater positive perceptions. Survey results were summarized, and differences across respondents assessed using generalized linear models. The survey response rate was 56% (203/365). Respondents found teleneonatology to be acceptable, appropriate, and feasible. The percent of respondents who agreed with each of the twelve statements ranged from 88.6 to 99.0%, with mean scores of 4.4 to 4.7 and median scores of 4.0 to 5.0. There was no difference in the acceptability, appropriateness, and feasibility of teleneonatology when analyzed by professional role, years of experience in neonatal care, or years of teleneonatology experience. Respondents from Level I well newborn nurseries had greater positive perceptions of teleneonatology than those from Level II special care nurseries. Providers in tertiary NICUs and community hospitals perceive teleneonatology to be highly acceptable, appropriate, and feasible for their practices. The wide acceptance by providers of all roles and levels of experience likely demonstrates a broad receptiveness to telemedicine as a tool to deliver neonatal care, particularly in rural communities where specialists are unavailable.· Neonatal care providers perceive teleneonatology to be highly acceptable, appropriate, and feasible.. · Perceptions of teleneonatology do not differ based on professional role or years of experience.. · Perceptions of teleneonatology are especially high in smaller hospitals with well newborn nurseries..
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- 2021
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3. Telesimulation for Neonatal Resuscitation Education and Training
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Jennifer L. Fang and Christopher E. Colby
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medicine.medical_specialty ,business.industry ,Emergency medicine ,medicine ,Training (meteorology) ,business ,Neonatal resuscitation - Published
- 2021
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4. Whole-genome sequencing for methicillin-resistant Staphylococcus aureus (MRSA) outbreak investigation in a neonatal intensive care unit
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Priya Sampathkumar, Maria J. Lujero, Robin Patel, Garth F. Asay, Kerryl E. Greenwood-Quaintance, Peggy C. Kohner, Jean E. Barth, Patricio Jeraldo, Heidi Nelson, Scott A. Cunningham, Nicolynn C. Cole, Theresa Madigan, Christopher E. Colby, W. Charles Huskins, Jennifer L. Fang, Angela L. Heinrich, Christine A. Baker, Nicholas Chia, and Kelly A. Fjerstad
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Methicillin-Resistant Staphylococcus aureus ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,Neonatal intensive care unit ,Epidemiology ,Health Personnel ,media_common.quotation_subject ,030106 microbiology ,030501 epidemiology ,medicine.disease_cause ,Disease Outbreaks ,03 medical and health sciences ,Hygiene ,Intensive Care Units, Neonatal ,Internal medicine ,Pulsed-field gel electrophoresis ,medicine ,Humans ,Hand Hygiene ,media_common ,Cross Infection ,Whole Genome Sequencing ,Transmission (medicine) ,business.industry ,Infant, Newborn ,Outbreak ,Staphylococcal Infections ,Methicillin-resistant Staphylococcus aureus ,Electrophoresis, Gel, Pulsed-Field ,Anterior nares ,Molecular Typing ,Infectious Diseases ,medicine.anatomical_structure ,Multilocus sequence typing ,Nasal Cavity ,0305 other medical science ,business - Abstract
ObjectiveTo evaluate whole-genome sequencing (WGS) as a molecular typing tool for MRSA outbreak investigation.DesignInvestigation of MRSA colonization/infection in a neonatal intensive care unit (NICU) over 3 years (2014–2017).SettingSingle-center level IV NICU.PatientsNICU infants and healthcare workers (HCWs).MethodsInfants were screened for MRSA using a swab of the anterior nares, axilla, and groin, initially by targeted (ring) screening, and later by universal weekly screening. Clinical cultures were collected as indicated. HCWs were screened once using swabs of the anterior nares. MRSA isolates were typed using WGS with core-genome multilocus sequence typing (cgMLST) analysis and by pulsed-field gel electrophoresis (PFGE). Colonized and infected infants and HCWs were decolonized. Control strategies included reinforcement of hand hygiene, use of contact precautions, cohorting, enhanced environmental cleaning, and remodeling of the NICU.ResultsWe identified 64 MRSA-positive infants: 53 (83%) by screening and 11 (17%) by clinical cultures. Of 85 screened HCWs, 5 (6%) were MRSA positive. WGS of MRSA isolates identified 2 large clusters (WGS groups 1 and 2), 1 small cluster (WGS group 3), and 8 unrelated isolates. PFGE failed to distinguish WGS group 2 and 3 isolates. WGS groups 1 and 2 were codistributed over time. HCW MRSA isolates were primarily in WGS group 1. New infant MRSA cases declined after implementation of the control interventions.ConclusionWe identified 2 contemporaneous MRSA outbreaks alongside sporadic cases in a NICU. WGS was used to determine strain relatedness at a higher resolution than PFGE and was useful in guiding efforts to control MRSA transmission.
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- 2018
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5. A Mixed-Methods Study on the Barriers and Facilitators of Telemedicine for Newborn Resuscitation
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Katherine Carroll, Jennifer L. Fang, Christopher E. Colby, Gladys B. Asiedu, and Ann M. Harris
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Adult ,Male ,Telemedicine ,Resuscitation ,Inservice Training ,020205 medical informatics ,Attitude of Health Personnel ,media_common.quotation_subject ,Hospitals, Community ,Health Informatics ,02 engineering and technology ,Affect (psychology) ,Health Services Accessibility ,Workflow ,Interviews as Topic ,03 medical and health sciences ,0302 clinical medicine ,Health Information Management ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,Humans ,Quality (business) ,030212 general & internal medicine ,media_common ,business.industry ,Communication ,Infant, Newborn ,General Medicine ,Consumer Behavior ,Middle Aged ,medicine.disease ,Community setting ,Female ,Medical emergency ,Neonatology ,business - Abstract
Teleneonatology may improve the quality of high-risk newborn resuscitations performed by general providers in community settings. Variables that affect teleneonatology utilization have not been identified.The objective of our mixed-methods study was to understand the barriers and facilitators experienced by local care providers who receive teleneonatology services.In October 2015, an electronic survey was sent to 349 teleneonatology participants at 6 community hospitals to assess user satisfaction, technology usability and acceptability, and impact on patient care. From December 2015 to June 2016, 49 participants were involved in focus groups and individual interviews to better understand barriers and facilitators of teleneonatology implementation. Qualitative data were analyzed using a thematic approach.Survey response rate was 31.8% (N = 111). Of 93 survey respondents, 88 (94.6%) agreed that teleneonatology was needed at their hospitals, and of 52 participants, 50 (96.2%) believed that teleneonatology consults were helpful. We identified multiple facilitators and barriers to program implementation in education and training, process and work flow, communication, and technology.Local care teams believed that teleneonatology was valuable for connection to a remote neonatologist. Successful program implementation may be facilitated by communicating the value of teleneonatology, engaging local stakeholders in program training and education, maintaining supportive professional relationships, and designing simple, highly reliable clinical work flows.Teleneonatology is viewed as an innovative, valuable service by local care teams. The identified barriers and facilitators to program use should be considered when implementing a teleneonatology program.
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- 2018
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6. Developing a Newborn Resuscitation Telemedicine Program: A Comparison of Two Technologies
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Christopher E. Colby, Kathleen D Stuart, Kelly W Boles, Jenna A Beck, Hussain Mohammed, Lisa A Stubert, Rochelle F Putzier, Julie A Jensen, Jennifer L. Fang, and Beth L. Kreofsky
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Male ,Service (systems architecture) ,Telemedicine ,Resuscitation ,Computer science ,Health Informatics ,Video quality ,computer.software_genre ,Likert scale ,03 medical and health sciences ,0302 clinical medicine ,Videoconferencing ,Health Information Management ,User experience design ,Surveys and Questionnaires ,030225 pediatrics ,medicine ,Humans ,Codec ,030212 general & internal medicine ,Program Development ,Retrospective Studies ,Original Research ,business.industry ,Remote Consultation ,Infant, Newborn ,General Medicine ,medicine.disease ,Cardiopulmonary Resuscitation ,Computers, Handheld ,Female ,Clinical Competence ,Medical emergency ,business ,Wireless Technology ,computer ,Software ,Program Evaluation - Abstract
Background: Early work has demonstrated the feasibility and acceptance of newborn resuscitation telemedicine programs (NRTPs). The technology requirements for providing this type of emergency telemedicine service are unclear. Introduction: We hypothesized that during NRTP consults, a wired telemedicine cart would provide a more reliable and higher-quality user experience than a consumer-grade wireless tablet. Materials and Methods: In this retrospective observational study, six spoke sites used consumer-grade wireless tablets during preintervention and wired coder/decoder (CODEC)-based telemedicine carts during postintervention. Both technologies used the same videoconferencing software. After the telemedicine consult, providers completed surveys assessing connection reliability, user satisfaction, and audio and video quality using a 1–5 Likert scale. Results: Preintervention, users completed 99 consults and 95 surveys. Postintervention, users completed 73 consults and 192 surveys. Successful connection on first attempt was significantly improved with the wired cart compared with the wireless tablet (82.7% vs. 69.5%, p = 0.01), and the percentage of consults complicated by an unplanned disconnection was reduced (6.4% vs. 14.7%, p = 0.02). User satisfaction and video and audio quality ratings were significantly higher for the wired cart. Discussion: The wired telemedicine cart increased connection reliability, which is important given the critical nature and long duration of NRTP consults. Audio-video quality was also improved, allowing for better visualization of the neonate and communication with the care team. Conclusions: Consumer-grade wireless tablets did not meet the program's technical requirements. Wired telemedicine carts improved reliability, user satisfaction, and audio-video quality. Wired carts may not fully meet NRTP requirements because of cart size and limited mobility.
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- 2018
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7. Fetoscopic Therapy for Severe Pulmonary Hypoplasia in Congenital Diaphragmatic Hernia: A First in Prenatal Regenerative Medicine at Mayo Clinic
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Denise B. Klinkner, Abimbola O. Famuyide, Norman Davies, Leal G. Segura, Hans P. Sviggum, Karthik Balakrishnan, Victoria Arruga Novoa y Novoa, Christopher E. Colby, Maureen A. Lemens, D. Dean Potter, Amy B. Kolbe, Rodrigo Ruano, William A. Carey, Andre Terzic, and Katherine W. Arendt
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Adult ,medicine.medical_specialty ,Diaphragmatic breathing ,Gestational Age ,medicine.disease_cause ,Young Adult ,03 medical and health sciences ,Pulmonary hypoplasia ,0302 clinical medicine ,Pregnancy ,medicine ,Humans ,030212 general & internal medicine ,Fetus ,030219 obstetrics & reproductive medicine ,business.industry ,Fetoscopy ,Gestational age ,Congenital diaphragmatic hernia ,General Medicine ,medicine.disease ,Surgery ,embryonic structures ,Gestation ,Female ,Hernias, Diaphragmatic, Congenital ,business ,Nasal cannula - Abstract
Objective To introduce the prenatal regenerative medicine service at Mayo Clinic for fetal endoscopic tracheal occlusion (FETO) care for severe congenital diaphragmatic hernia (CDH). Patients and Methods Two cases of prenatal management of severe CDH with FETO between January and August 2017 are reported. Per protocol, FETO was offered for life-threatening severe CDH at between 26 and 29 weeks' gestation. Regenerative outcome end point was fetal lung growth. Gestational age at procedure and maternal and perinatal outcomes were additional monitored parameters. Results Diagnosis by ultrasonography of severe CDH was based on extremely reduced lung size (observed-to-expected lung area to head circumference ratio [o/e-LHR], eg, o/e-LHR of 20.3% for fetus 1 and 23.0% for fetus 2) along with greater than one-third of the liver herniated into the chest in both fetuses. Both patients underwent successful FETO at 28 weeks. At the time of intervention, no maternal or fetal complications were observed. Postintervention, fetal lung growth was observed in both fetuses, reaching an o/e-LHR of 62.7% at 36 weeks in fetus 1 and 52.4% at 32 weeks in fetus 2. The balloons were removed successfully at 35 weeks and 4 days by ultrasound-guided puncture in the first patient and at 32 weeks and 3 days by ex utero intrapartum therapy-to-airway procedure in the second patient. Postnatal management followed standard of care with patch CDH therapy. At discharge, one patient was breathing normally, whereas the other required minimal nasal cannula oxygen support. Conclusion The successful launch of the first fetoscopic therapy for CDH at Mayo Clinic reveals its feasibility and safety, with early signs of benefit documented by fetal lung growth and reversal of severe pulmonary hypoplasia. Trial Registration clinicaltrials.gov Identifier: G170062.
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- 2018
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8. In Utero Restoration of Hindbrain Herniation in Fetal Myelomeningocele as Part of Prenatal Regenerative Therapy Program at Mayo Clinic
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Eniola R. Ibirogba, Edward S. Ahn, M. Yasir Qureshi, Amy B. Kolbe, Leal G. Segura, Kendall A. Snyder, Abimbola O. Famuyide, Mari Charisse Trinidad, Katherine W. Arendt, Hans P. Sviggum, Victor M. Lu, David J. Daniels, Rodrigo Ruano, Christopher E. Colby, Andre Terzic, and William A. Carey
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Adult ,medicine.medical_specialty ,Pregnancy ,Fetus ,Meningomyelocele ,Obstetrics ,business.industry ,Congenital diaphragmatic hernia ,Prenatal Care ,General Medicine ,Perioperative ,medicine.disease ,Regenerative Medicine ,Rhombencephalon ,Lumbar ,In utero ,Fetal intervention ,medicine ,Gestation ,Humans ,Female ,business ,Encephalocele - Abstract
Objective To assess our initial experience with prenatal restoration of hindbrain herniation following in utero repair of myelomeningocele (MMC). Patients and Methods Three consecutive patients with prenatally diagnosed MMC (between January 1, 2018 and September 30, 2018) were managed with open in utero surgery. As per institutional review board approval and following a protocol designed at the Mayo Clinic Maternal & Fetal Center, fetal intervention was offered between 19 0/7 and 25 6/7 weeks of gestation. Prenatal improvement of hindbrain herniation was the declared restorative end point. Obstetrical and perinatal outcomes were also assessed. Results Diagnosis of MMC was confirmed upon referral between 20 and 21 weeks' gestation by using fetal ultrasound and magnetic resonance imaging. In all cases reported here, the spinal defect was lumbosacral with evidence of hindbrain herniation. Open in utero MMC repair was performed between 24 and 25 weeks' gestation with no notable perioperative complications. Postprocedure fetal magnetic resonance imaging performed 6 weeks after in utero repair documented improvement of hindbrain herniation. Deliveries were at 37 weeks by cesarean section without complications. Most recent postnatal follow-ups were unremarkable at both 11 months (baby 1) and 3 months of age (baby 2), with mild ventriculomegaly. Antenatal and postnatal follow-up of baby 3 at 1 month of age was also unremarkable. Conclusion Our study highlights the prenatal restoration of hindbrain herniation following in utero MMC repair in all cases presented here as an example of a prenatal regenerative therapy program in our institution.
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- 2019
9. Development of the Galaxy Chronic Obstructive Pulmonary Disease (COPD) Model Using Data from ECLIPSE: Internal Validation of a Linked-Equations Cohort Model
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Andrew Briggs, Maggie Tabberer, Tim Baker, Sebastian Gonzalez-McQuire, Hana Muellerova, Nancy Risebrough, Afisi S. Ismaila, Maureen P.M.H. Rutten-van Mölken, Christopher E. Colby, Mike Chambers, David A. Lomas, A. Exuzides, Nicholas Locantore, and Health Technology Assessment (HTA)
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medicine.medical_specialty ,Delphi Technique ,Health Status ,Comorbidity ,Severity of Illness Index ,Health informatics ,Body Mass Index ,Pulmonary Disease, Chronic Obstructive ,03 medical and health sciences ,Pharmacoeconomics ,0302 clinical medicine ,Double-Blind Method ,Quality of life ,medicine ,Humans ,Operations management ,030212 general & internal medicine ,Intensive care medicine ,COPD ,business.industry ,Health Policy ,Cohort model ,Health Services ,Models, Theoretical ,medicine.disease ,Bronchodilator Agents ,Respiratory Function Tests ,Quality-adjusted life year ,Models, Economic ,Socioeconomic Factors ,030228 respiratory system ,Disease Progression ,Quality of Life ,Quality-Adjusted Life Years ,Outcomes research ,business ,Biomarkers - Abstract
Background. The recent joint International Society for Pharmacoeconomics and Outcomes Research / Society for Medical Decision Making Modeling Good Research Practices Task Force emphasized the importance of conceptualizing and validating models. We report a new model of chronic obstructive pulmonary disease (COPD) (part of the Galaxy project) founded on a conceptual model, implemented using a novel linked-equation approach, and internally validated. Methods. An expert panel developed a conceptual model including causal relationships between disease attributes, progression, and final outcomes. Risk equations describing these relationships were estimated using data from the Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints (ECLIPSE) study, with costs estimated from the TOwards a Revolution in COPD Health (TORCH) study. Implementation as a linked-equation model enabled direct estimation of health service costs and quality-adjusted life years (QALYs) for COPD patients over their lifetimes. Internal validation compared 3 years of predicted cohort experience with ECLIPSE results. Results. At 3 years, the Galaxy COPD model predictions of annual exacerbation rate and annual decline in forced expiratory volume in 1 second fell within the ECLIPSE data confidence limits, although 3-year overall survival was outside the observed confidence limits. Projections of the risk equations over time permitted extrapolation to patient lifetimes. Averaging the predicted cost/QALY outcomes for the different patients within the ECLIPSE cohort gives an estimated lifetime cost of £25,214 (undiscounted)/£20,318 (discounted) and lifetime QALYs of 6.45 (undiscounted/5.24 [discounted]) per ECLIPSE patient. Conclusions. A new form of model for COPD was conceptualized, implemented, and internally validated, based on a series of linked equations using epidemiological data (ECLIPSE) and cost data (TORCH). This Galaxy model predicts COPD outcomes from treatment effects on disease attributes such as lung function, exacerbations, symptoms, or exercise capacity; further external validation is required.
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- 2017
10. Emergency Video Telemedicine Consultation for Newborn Resuscitations
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Christopher A. Collura, Christopher E. Colby, Tara R. Lang, Robert Johnson, Beth L. Kreofsky, Jennifer L. Fang, Garth F. Asay, William A. Carey, and Douglas P. Derleth
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Telemedicine ,Remote Consultation ,Teamwork ,Neonatal intensive care unit ,business.industry ,media_common.quotation_subject ,030208 emergency & critical care medicine ,General Medicine ,computer.software_genre ,medicine.disease ,03 medical and health sciences ,Patient safety ,0302 clinical medicine ,Videoconferencing ,030225 pediatrics ,medicine ,Emergency medical services ,Medical emergency ,business ,computer ,Neonatal resuscitation ,media_common - Abstract
Objective To describe the Mayo Clinic experience with emergency video telemedicine consultations for high-risk newborn deliveries. Patients and Methods From March 26, 2013, through December 31, 2015, the Division of Neonatal Medicine offered newborn telemedicine consultations to 6 health system sites. A wireless tablet running secure video conferencing software was used by the local care teams. Descriptive data were collected on all consultations. After each telemedicine consult, a survey was sent to the neonatologist and referring provider to assess the technology, teamwork, and user satisfaction. Results During the study, neonatologists conducted 84 telemedicine consultations, and 64 surveys were completed. Prematurity was the most frequent indication for consultation (n=32), followed by respiratory distress (n=15) and need for advanced resuscitation (n=14). After the consult, nearly one-third of the infants were able to remain in the local hospital. User assessment of the technology revealed that audio and video quality were poor or unusable in 16 (25%) and 12 (18.8%) of cases, respectively. Providers failed to establish a video connection in 8 consults (9.5%). Despite technical issues, providers responded positively to multiple questions assessing teamwork (86.0% [n=37 of 43] to 100.0% [n=17 of 17] positive responses per question). In 93.3% (n=14 of 15) of surveyed cases, the local provider agreed that the telemedicine consult improved patient safety, quality of care, or both. Conclusion Telemedicine consultation for neonatal resuscitation improves patient access to neonatology expertise and prevents unnecessary transfers to a higher level of care. A highly reliable technology infrastructure that provides high-quality audio and video should be considered for any emergency telemedicine service.
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- 2016
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11. Neonatal Intensive Care Unit Quality Initiative
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Christopher E. Colby, Nikola A. Baumann, Erin J. Kaleta, Jennifer L. Fang, William A. Carey, Brad S. Karon, and Nicole V. Tolan
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Quality Control ,030213 general clinical medicine ,medicine.medical_specialty ,Neonatal intensive care unit ,Evidence-based practice ,Psychological intervention ,030204 cardiovascular system & hematology ,Hemolysis ,Specimen Handling ,03 medical and health sciences ,0302 clinical medicine ,Intensive Care Units, Neonatal ,medicine ,Humans ,Intensive care medicine ,Retrospective Studies ,Blood Specimen Collection ,business.industry ,Retrospective cohort study ,General Medicine ,Arterial catheter ,medicine.disease ,Pneumatic tube ,Emergency medicine ,Sample collection ,business - Abstract
Objectives: Blood specimen hemolysis is a major cause of sample recollection in the neonatal intensive care unit. We aimed to reduce the hemolysis rate from 6.3% at baseline to less than 4% within the 9 months’ duration of the study. Methods: Intravenous infusion of lipid emulsion during sample collection, sample collection site, and blood sample transportation methods were investigated as possible contributors to hemolysis. Subsequently, two practice improvements were implemented: pausing lipid emulsion infusion prior to collection and slowing withdrawal rates through arterial catheters. Results: Samples were more likely to be hemolyzed if they were collected during lipid infusion and subsequently transported by pneumatic tube or collected through an arterial catheter. Retrospective analysis demonstrated a decreased number of tests cancelled due to specimen hemolysis (3.5%) after our interventions. Conclusions: We identified three variables contributing to hemolysis and instituted two clinical practice interventions to significantly reduce test cancellations due to hemolysis.
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- 2016
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12. Does Red Blood Cell Transfusion-Related Acute Lung Injury Occur in Premature Infants? A Retrospective Cohort Analysis
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Christopher E. Colby, Markéta Štanclová, Marc A. Ellsworth, and Jacquelyn E. M. Grev
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Pediatrics ,medicine.medical_specialty ,Gestational Age ,Mean airway pressure ,Lung injury ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Intensive Care Units, Neonatal ,030225 pediatrics ,Fraction of inspired oxygen ,medicine ,Humans ,Decompensation ,030212 general & internal medicine ,Retrospective Studies ,business.industry ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,Retrospective cohort study ,medicine.disease ,Low birth weight ,Transfusion-Related Acute Lung Injury ,Infant, Extremely Low Birth Weight ,Infant, Extremely Premature ,Pediatrics, Perinatology and Child Health ,medicine.symptom ,Erythrocyte Transfusion ,business ,Infant, Premature ,Transfusion-related acute lung injury - Abstract
Objective The objective of this study was to determine whether packed red blood cell (pRBC) transfusions in extremely low birth weight (ELBW) infants were associated with acute respiratory decompensation (ARD). Study Design Retrospective chart review of ELBW infant pRBC transfusions analyzed for meeting ARD criteria during the 6 hours post-pRBC transfusion was compared with the pretransfusion baseline period. A control period subdivided into similar pre- and postintervals was also assessed for each infant. ARD was defined as ≥ 1 of the following: (1) ≥ 10% increase in fraction of inspired oxygen from highest baseline, (2) ≥ 2 cm H2O increase from highest baseline in mean airway pressure, or (3) escalation in mode of respiratory support. Results A total of 238 pRBC transfusions occurred in 36 ELBW infants during 2012. Complete data for both the transfusion and control time periods existed for 110 pRBC transfusions (25 infants) and were included for analysis. The frequency of ARD was 15.5 and 18.2% (odds ratio, 1.25; p = 0.70) in the control and transfusion time periods, respectively. Conclusion pRBC transfusions in ELBW neonates are not associated with statistically significant rates of ARD compared with nontransfusion control time periods.
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- 2016
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13. Case 10: Large Skin Defect of the Trunk Noted at Birth
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Christopher E. Colby, Daniel L. Kenney, Dawn Marie R. Davis, Samir Mardini, and Steven L. Moran
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business.industry ,Medicine ,Anatomy ,business ,Trunk - Published
- 2018
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14. EP25.05: Fetoscopic tracheal occlusion to regenerate fetal lungs in congenital diaphragmatic hernia
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Karthik Balakrishnan, Amy B. Kolbe, Eniola R. Ibirogba, Abimbola O. Famuyide, Denise B. Klinkner, M. Lemens, Mari Charisse Trinidad, Hans P. Sviggum, Leal G. Segura, Andre Terzic, Christopher E. Colby, Katherine W. Arendt, and Rodrigo Ruano
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Fetus ,medicine.medical_specialty ,Radiological and Ultrasound Technology ,business.industry ,Obstetrics and Gynecology ,Congenital diaphragmatic hernia ,General Medicine ,medicine.disease ,Surgery ,Reproductive Medicine ,Tracheal occlusion ,medicine ,Radiology, Nuclear Medicine and imaging ,business - Published
- 2019
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15. Emergency Video Telemedicine for Newborn Resuscitation: A Comparison of Two Technologies
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Christopher E. Colby, Jenna A Beck, Lisa A Stubert, Rochelle F Putzier, and Jennifer L. Fang
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Telemedicine ,Videoconferencing ,business.industry ,medicine ,Observational study ,Medical emergency ,Zoom ,computer.software_genre ,medicine.disease ,business ,computer - Abstract
Purpose: To describe a single center experience with emergency video telemedicine for newborn resuscitations and compare quality metrics for two telemedicine technologies. Methods: In this pre-post observational study, descriptive data was collected on all clinical video telemedicine consultations. During the pre-intervention phase, local care teams used wireless tablets with secure video conferencing software for telemedicine consultation. During the post-intervention phase, wired telemedicine carts that included a high-definition, pan/tilt/zoom camera and a noise-cancelling, full-duplex microphone/speaker set were utilized. After clinical and simulated consults, surveys were administered to the neonatologist and local care team to measure the reliability of connection, …
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- 2018
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16. Burden of Illness for Osteoporotic Fractures Compared With Other Serious Diseases Among Postmenopausal Women in the United States
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Jessica Baker, Leslie Spangler, Risa Kagan, Andrea Singer, Christopher E. Colby, Karissa Johnston, Irene Agodoa, A. Exuzides, and Cynthia D. O'Malley
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medicine.medical_specialty ,Population ,Myocardial Infarction ,MEDLINE ,Breast Neoplasms ,Age Distribution ,Breast cancer ,Cost of Illness ,United States Agency for Healthcare Research and Quality ,Outcome Assessment, Health Care ,Health care ,medicine ,Humans ,Myocardial infarction ,Hospital Costs ,education ,Stroke ,Aged ,education.field_of_study ,Postmenopausal women ,business.industry ,Incidence ,Incidence (epidemiology) ,General Medicine ,Length of Stay ,Middle Aged ,medicine.disease ,United States ,Hospitalization ,Emergency medicine ,Physical therapy ,Female ,business ,Needs Assessment ,Osteoporotic Fractures - Abstract
Objectives: To provide a national estimate of the incidence of hospitalizations due to osteoporotic fractures (OFs) in women; compare this with the incidence of myocardial infarction (MI), stroke, and breast cancer; and assess temporal trends in the incidence and length of hospitalizations. Patients and Methods: The study included all women 55 years and older at the time of admission, admitted to a hospital participating in the US Nationwide Inpatient Sample for an outcome of interest. We performed a retrospective analysis of hospitalizations for OFs (hip, forearm, spine, pelvis, distal femur, wrist, and humerus), MI, stroke, or breast cancer, using the US Nationwide Inpatient Sample, 2000-2011. Results: From 2000 to 2011, there were 4.9 million hospitalizations for OF, 2.9 million for MI, 3.0 million for stroke, and 0.7 million for breast cancer. Osteoporotic fractures accounted for more than 40% of the hospitalizations in these 4 outcomes, with an age-adjusted rate of 1124 admissions per 100,000 person-years. In comparison, MI, stroke, and breast cancer had age-adjusted incidence rates of 668, 687, and 151 admissions per 100,000 person-years, respectively. The annual total population facility-related hospital cost was highest for hospitalizations due to OFs ($5.1 billion), followed by MI ($4.3 billion), stroke ($3.0 billion), and breast cancer ($0.5 billion). Conclusion: These data provide evidence that in US women 55 years and older, the hospitalization burden of OFs and population facility-related hospital cost is greater than that of MI, stroke, or breast cancer. Prioritization of bone health and supporting programs such as fracture liaison services is needed to reduce this substantial burden.
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- 2015
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17. The impact of telemedicine on the quality of newborn resuscitation: A retrospective study
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Meredith S. Campbell, Christopher E. Colby, Jennifer L. Fang, William A. Carey, Amy L. Weaver, Kristin C. Mara, and Virginia S. Schuning
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Male ,Resuscitation ,medicine.medical_specialty ,Wilcoxon signed-rank test ,Subgroup analysis ,Hospitals, Community ,Emergency Nursing ,03 medical and health sciences ,0302 clinical medicine ,McNemar's test ,Rating scale ,030225 pediatrics ,Medicine ,Humans ,030212 general & internal medicine ,Referral and Consultation ,Retrospective Studies ,business.industry ,Infant, Newborn ,Gestational age ,Retrospective cohort study ,Infant, Low Birth Weight ,Community hospital ,Telemedicine ,Case-Control Studies ,Emergency medicine ,Emergency Medicine ,Female ,Neonatology ,Cardiology and Cardiovascular Medicine ,business ,Infant, Premature - Abstract
Objective We hypothesized that telemedicine consults provided by neonatologists to local care teams (termed teleneonatology) would improve the quality of high-risk newborn resuscitations that occur in community hospitals. Methods This retrospective cohort study compared 47 newborns who received a teleneonatology consult during their resuscitation at a community hospital to 45 controls who did not. Controls were matched on gestational age, sex, admission diagnosis, and level of newborn care. A two-person expert panel blinded to the intervention reviewed demographic and resuscitation data for each patient and assigned a resuscitation quality rating using a 1–10 descriptive rating scale. Paired comparisons between groups were evaluated using the Wilcoxon signed rank test for continuous measures and the McNemar’s test for dichotomous measures. Results The median resuscitation quality rating was 7 for the teleneonatology group and 4 for the control group, with a median difference of 1 between matched pairs (P = .002). Neonates who received a teleneonatology consult were more likely to undergo measurement of temperature, glucose, and blood gases. When analyzing the 35 matched pairs that had a consult within one hour of birth, the positive impact of teleneonatology was greater (median rating 8 vs 4, median difference 2, P = .003). Subgroup analysis demonstrated teleneonatology significantly improved the resuscitation of preterm neonates (median rating 8 vs 4, median difference 1.5, P = .004) Conclusion Teleneonatology improves the quality of high-risk newborn resuscitations that occur in community hospitals and increases adherence to process metrics. Earlier teleneonatology consults appear to have greater positive impact.
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- 2017
18. Improving Infant Vaccination Status in a Level IV Neonatal Intensive Care Unit
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Christopher E. Colby, Robert M. Jacobson, Raymond C. Stetson, and Jennifer L. Fang
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Parents ,medicine.medical_specialty ,Vaccination Coverage ,Quality management ,Neonatal intensive care unit ,Minnesota ,Psychological intervention ,Documentation ,03 medical and health sciences ,0302 clinical medicine ,Neonatologists ,Vaccination Refusal ,Intensive Care Units, Neonatal ,030225 pediatrics ,Humans ,Medicine ,Immunization Schedule ,business.industry ,Infant, Newborn ,Quality Improvement ,Patient Discharge ,Checklist ,Vaccination ,Schedule (workplace) ,Immunization ,Practice Guidelines as Topic ,Pediatrics, Perinatology and Child Health ,Emergency medicine ,Guideline Adherence ,business - Abstract
BACKGROUND AND OBJECTIVES: Infants in NICUs are at risk for underimmunization. Adherence to the routine immunization schedule recommended by the Advisory Committee for Immunization Practices minimizes the risk of contracting vaccine-preventable illnesses in this vulnerable population. From January 2015 to June 2017, only 56% (419 of 754) of the infants in our Mayo Clinic level IV NICU were fully up to date for recommended immunizations at the time of discharge or hospital unit transfer. We aimed to increase this rate to 80% within 6 months. METHODS: Using the quality improvement methodology of Define, Measure, Analyze, Improve, Control, we analyzed baseline data, including provider and nursing surveys using a fishbone diagram, the 5 Whys, and a Pareto chart. We identified 3 major root causes of the quality gap: lack of provider knowledge of the routine immunization schedule, failure of providers to order vaccines when due, and hesitancy of parents toward vaccination. Using plan-do-study-act cycles, 5 improvement interventions were implemented. These included an intranet resource for NICU providers on the routine immunization schedule, an Excel-based checklist to track when immunizations were due, and provider education on parental vaccine hesitancy and vaccine safety. RESULTS: During the 19-month improve and control phases of the project, the fully immunized rate at the time of NICU discharge or transfer rose from a baseline of 56% (419 of 754) to 93% (453 of 488), with a P value CONCLUSIONS: Our NICU significantly improved infant immunization rates with a small number of interventions. These interventions may be generalizable to other NICUs with low infant immunization rates.
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- 2019
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19. Sedation and Analgesia to Facilitate Mechanical Ventilation
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Christopher E. Colby, Myron Yaster, and Michael E. Nemergut
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medicine.medical_specialty ,Neonatal intensive care unit ,medicine.drug_class ,Midazolam ,medicine.medical_treatment ,Sedation ,Pain ,Clonidine ,Benzodiazepines ,Health care ,Intubation, Intratracheal ,medicine ,Humans ,Hypnotics and Sedatives ,Pain Management ,Intubation ,Intensive care medicine ,Pain Measurement ,Mechanical ventilation ,Analgesics ,business.industry ,Infant, Newborn ,Infant ,Obstetrics and Gynecology ,Respiration, Artificial ,Analgesics, Opioid ,Ethical obligation ,Sedative ,Pediatrics, Perinatology and Child Health ,Anesthetic ,Intensive Care, Neonatal ,Neuromuscular Blockade ,Ketamine ,medicine.symptom ,business ,medicine.drug - Abstract
Regardless of age, health care professionals have a professional and ethical obligation to provide safe and effective analgesia to patients undergoing painful procedures. Historically, newborns, particularly premature and sick infants, have been undertreated for pain. Intubation of the trachea and mechanical ventilation are ubiquitous painful procedures in the neonatal intensive care unit that are poorly assessed and treated. The authors review the use of sedation and analgesia to facilitate endotracheal tube placement and mechanical ventilation. Controversies regarding possible adverse neurodevelopmental outcomes after sedative and anesthetic exposure and in the failure to treat pain is also discussed.
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- 2013
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20. ADHD and Learning Disabilities in Former Late Preterm Infants: A Population-Based Birth Cohort
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Malinda N. Harris, Robert G. Voigt, Gretchen A. Voge, Christopher E. Colby, William J. Barbaresi, William A. Carey, Jill M. Killian, Amy L. Weaver, and Slavica K. Katusic
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Pediatrics ,medicine.medical_specialty ,Minnesota ,Population ,Gestational Age ,Child Behavior Disorders ,Comorbidity ,Infant, Premature, Diseases ,Kaplan-Meier Estimate ,Population based ,Article ,Cohort Studies ,Dyslexia ,Risk Factors ,Intellectual Disability ,medicine ,Late preterm ,Humans ,Attention deficit hyperactivity disorder ,Cumulative incidence ,Child ,education ,education.field_of_study ,Learning Disabilities ,business.industry ,Incidence ,Infant, Newborn ,medicine.disease ,Cross-Sectional Studies ,Attention Deficit Disorder with Hyperactivity ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Learning disability ,Attention deficit ,medicine.symptom ,Birth cohort ,business - Abstract
BACKGROUND AND OBJECTIVE: Previous studies suggest that former late preterm infants are at increased risk for learning and behavioral problems compared with term infants. These studies have primarily used referred clinical samples of children followed only until early school age. Our objective was to determine the cumulative incidence of attention deficit/hyperactivity disorder (ADHD) and learning disabilities (LD) in former late preterm versus term infants in a population-based birth cohort. METHODS: Subjects included all children born 1976 to 1982 in Rochester, MN who remained in the community after 5 years. This study focused on the comparison of subjects in 2 subgroups, late preterm (34 to RESULTS: We found no statistically significant differences in the cumulative incidence of ADHD or LD between the late preterm (N = 256) versus term (N = 4419) groups: ADHD (cumulative incidence by age 19 years, 7.7% vs 7.2%; P = .84); reading LD (14.2% vs 13.1%; P = .57); written language LD (13.5% vs 15.7%; P = .36), and math LD (16.1% vs 15.5%; P = .89). CONCLUSIONS: These data from a population-based birth cohort indicate that former late preterm infants have similar rates of LD and ADHD as term infants.
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- 2013
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21. Implementation of an electronic data monitoring system decreases the rate of hyperoxic episodes in premature neonates
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Marc A. Ellsworth, Christopher E. Colby, M Li, Grant D. Wilson, Malinda N. Harris, and William A. Carey
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Male ,Respiratory Therapy ,Pediatrics ,medicine.medical_specialty ,Infant, Premature, Diseases ,Hyperoxia ,Cohort Studies ,Clinical Protocols ,medicine ,Electronic Health Records ,Humans ,Maternal fetal ,Neonatology ,Electronic Data Processing ,business.industry ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,Monitoring system ,Infant newborn ,Pediatrics, Perinatology and Child Health ,Intensive care neonatal ,Intensive Care, Neonatal ,Female ,Electronic data ,business ,Infant, Premature ,Cohort study - Abstract
To determine whether an electronic data surveillance system, or Data Sniffer (DS), could reduce the rate of hyperoxic episodes (HEs) among premature neonates being managed by a standardized respiratory treatment protocol (RTP).A total of 86 infants born at29 weeks of gestation were included in the study. The rates of HEs were compared among four epochs (E) as follows: E1: no RTP, no DS; E2:with RTP, no DS; E3: with RTP, with DS; E4: with RTP, no DS.After implementing the RTP in E2, the rate of HEs was 44% lower than that of E1. Activating the DS in E3 further reduced HEs by 26%, whereas its deactivation in E4 resulted in a rebound in HEs to baseline rates; P0.0001 for each comparison.The implementation of an electronic data monitoring system was associated with less frequent episodes of hyperoxia among premature neonates.
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- 2013
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22. Intraoperative Management of the Neonate
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Christopher E. Colby and Malinda N. Harris
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medicine.medical_specialty ,business.industry ,Intraoperative management ,medicine ,business ,Surgery - Published
- 2017
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23. Statistical Modeling of Disease Progression for Chronic Obstructive Pulmonary Disease Using Data from the ECLIPSE Study
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Sebastian Gonzalez-McQuire, Afisi S. Ismaila, Mike Chambers, Maureen P.M.H. Rutten-van Mölken, Hana Muellerova, David A. Lomas, Nicholas Locantore, Maggie Tabberer, Andrew Briggs, Christopher E. Colby, A. Exuzides, Nancy Risebrough, and Health Technology Assessment (HTA)
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Male ,medicine.medical_specialty ,Exacerbation ,Health Status ,Population ,Pulmonary disease ,Comorbidity ,Severity of Illness Index ,Body Mass Index ,Pulmonary Disease, Chronic Obstructive ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Humans ,Medicine ,030212 general & internal medicine ,education ,Aged ,Eclipse ,COPD ,education.field_of_study ,Models, Statistical ,business.industry ,Health Policy ,Disease progression ,Statistical model ,Health Services ,Middle Aged ,medicine.disease ,Survival Analysis ,Respiratory Function Tests ,respiratory tract diseases ,Socioeconomic Factors ,030228 respiratory system ,Disease Progression ,Quality of Life ,Physical therapy ,Female ,Observational study ,business ,Biomarkers - Abstract
Background. To develop statistical models predicting disease progression and outcomes in chronic obstructive pulmonary disease (COPD), using data from ECLIPSE, a large, observational study of current and former smokers with COPD. Methods. Based on a conceptual model of COPD disease progression and data from 2164 patients, associations were made between baseline characteristics, COPD disease progression attributes (exacerbations, lung function, exercise capacity, and symptoms), health-related quality of life (HRQoL), and survival. Linear and nonlinear functional forms of random intercept models were used to characterize these relationships. Endogeneity was addressed by time-lagging variables in the regression models. Results. At the 5% significance level, an exacerbation history in the year before baseline was associated with increased risk of future exacerbations (moderate: +125.8%; severe: +89.2%) and decline in lung function (forced expiratory volume in 1 second [FEV1]) (–94.20 mL per year). Each 1% increase in FEV1 % predicted was associated with decreased risk of exacerbations (moderate: –1.1%; severe: –3.0%) and increased 6-minute walk test distance (6MWD) (+1.5 m). Increases in baseline exercise capacity (6MWD, per meter) were associated with slightly increased risk of moderate exacerbations (+0.04%) and increased FEV1 (+0.62 mL). Symptoms (dyspnea, cough, and/or sputum) were associated with an increased risk of moderate exacerbations (+13.4% to +31.1%), and baseline dyspnea (modified Medical Research Council score ≥2 v. 1 (–112.3 mL). Conclusions. A series of linked statistical regression equations have been developed to express associations between indicators of COPD disease severity and HRQoL and survival. These can be used to represent disease progression, for example, in new economic models of COPD.
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- 2017
24. Congenital diaphragmatic hernia: outcomes of neonates treated at Mayo Clinic with and without extracorporeal membrane oxygenation
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Ruža Grizelj, Toby N. Weingarten, Gregory J. Schears, Alexandre N. Cavalcante, Darrell R. Schroeder, William A. Carey, Katarina Bojanić, Garth F. Asay, Christopher E. Colby, Jason M. Woodbury, and Juraj Sprung
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Cohort Studies ,03 medical and health sciences ,Pulmonary hypoplasia ,0302 clinical medicine ,Extracorporeal Membrane Oxygenation ,Interquartile range ,030225 pediatrics ,Extracorporeal membrane oxygenation ,Odds Ratio ,Medicine ,Humans ,Retrospective Studies ,030219 obstetrics & reproductive medicine ,business.industry ,Infant, Newborn ,Congenital diaphragmatic hernia ,Retrospective cohort study ,Odds ratio ,medicine.disease ,Survival Analysis ,Surgery ,Bochdalek hernia ,Anesthesiology and Pain Medicine ,Treatment Outcome ,Anesthesia ,Pediatrics, Perinatology and Child Health ,Failure to thrive ,gastroesophageal reflux disease ,mortality ,pulmonary hypertension ,pulmonary hypoplasia ,survival ,Female ,medicine.symptom ,business ,Hernias, Diaphragmatic, Congenital - Abstract
SummaryBackground Congenital diaphragmatic hernia (CDH) is a rare anomaly with high mortality and long-term comorbid conditions. Aims Our aim was to describe the presenting characteristics, treatment, and outcomes of consecutive patients with CDH treated at our institution. Methods We performed a retrospective cohort study and identified consecutive neonates treated for CDH from 2001 to 2015 at our institution. For all patients identified, we reviewed hospital and postdischarge data for neonatal, disease, and treatment characteristics. We determined hospital survival overall and also according to the presence of prenatal diagnosis, liver herniation into the chest (liver up), and the use of extracorporeal membrane oxygenation (ECMO) in addition to surgery. We evaluated postdischarge chronic conditions in patients with at least one year of follow-up. Results Thirty-eight neonates were admitted for treatment during the study period. In three who were in extremis, life support was withdrawn. The other 35 underwent surgical repair, of whom eight received ECMO. The overall survival was 79% (30/38). Survival for those who had surgical correction of CDH but did not need ECMO was 89% (24/27); it was 75% (6/8) for those who received ECMO and had surgery. Hospital survival was lower for liver-up vs liver-down CDH (61% [11/18] vs 95% [19/20]; odds ratio, 0.08; 95% CI, 0.01–0.77; P = 0.01). Among survivors, the median duration of hospitalization was 31 (interquartile range, 20–73) days. Major chronic pulmonary and gastrointestinal disorders, failure to thrive, and neurodevelopmental delays were the most noted comorbid conditions after discharge, and all were more prevalent in those who required ECMO. Conclusion The overall survival of neonates with CDH was 79%. Intrathoracic liver herniation was associated with more frequent use of ECMO and greater mortality. A substantial number of survivors, especially those who required ECMO, experienced chronic conditions after discharge.
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- 2016
25. Intrapartum factors associated with neonatal hypoxic ischemic encephalopathy: a case-controlled study
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Bobbie S. Gostout, Christopher E. Colby, Vanessa E. Torbenson, Sherif A. El-Nashar, Abimbola O. Famuyide, Mary Catherine Tolcher, Amy L. Weaver, Kate M. Nesbitt, and Michaela E. Mc Gree
- Subjects
Meconium ,medicine.medical_specialty ,Amniotic fluid ,Time Factors ,Databases, Factual ,Encephalopathy ,Neonatal encephalopathy ,lcsh:Gynecology and obstetrics ,Hypoxic Ischemic Encephalopathy ,03 medical and health sciences ,0302 clinical medicine ,Labor Stage, Second ,Pregnancy ,030225 pediatrics ,medicine ,Humans ,lcsh:RG1-991 ,Intrapartum factors ,030219 obstetrics & reproductive medicine ,business.industry ,Obstetrics ,Case-control study ,Infant, Newborn ,Obstetrics and Gynecology ,Heart Rate, Fetal ,medicine.disease ,Amniotic Fluid ,Obstetric labor complication ,Obstetric Labor Complications ,Risk factors ,Case-Control Studies ,Hypoxia-Ischemia, Brain ,Multivariate Analysis ,Female ,business ,Hypoxic ischemic encephalopathy ,Research Article - Abstract
Background Neonatal encephalopathy (NE) affects 2–4/1000 live births with outcomes ranging from negligible neurological deficits to severe neuromuscular dysfunction, cerebral palsy and death. Hypoxic ischemic encephalopathy (HIE) is the sub cohort of NE that appears to be driven by intrapartum events. Our objective was to identify antepartum and intrapartum factors associated with the development of neonatal HIE. Methods Hospital databases were searched using relevant diagnosis codes to identify infants with neonatal encephalopathy. Cases were infants with encephalopathy and evidence of intrapartum hypoxia. For each hypoxic ischemic encephalopathy case, four controls were randomly selected from all deliveries that occurred within 6 months of the case. Results Twenty-six cases met criteria for hypoxic ischemic encephalopathy between 2002 and 2014. In multivariate analysis, meconium-stained amniotic fluid (aOR 12.4, 95% CI 2.1–144.8, p = 0.002), prolonged second stage of labor (aOR 9.5, 95% CI 1.0–135.3, p = 0.042), and the occurrence of a sentinel or acute event (aOR 74.9, 95% CI 11.9-infinity, p
- Published
- 2016
26. Infants with Prenatally Diagnosed Anomalies
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Christopher E. Colby, Susan R. Hintz, Yair J. Blumenfeld, and William A. Carey
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Pregnancy ,medicine.medical_specialty ,Resuscitation ,Neural tube defect ,business.industry ,Obstetrics ,Abdominal wall defect ,Obstetrics and Gynecology ,Congenital diaphragmatic hernia ,Prenatal diagnosis ,Airway obstruction ,medicine.disease ,Abdominal wall ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,medicine ,business ,Intensive care medicine - Abstract
When a fetal anomaly is suspected, a multidisciplinary approach to diagnosis, counseling, pregnancy management, surveillance, delivery planning, and neonatal care is critical to creating a comprehensive management plan. This article provides a basic framework for integrating prenatal diagnostic and maternal-fetal care considerations, delivery planning, special resuscitation needs, and immediate and later neonatal care and evaluation into developing a thoughtful management plan for infants with prenatally diagnosed complex anomalies including congenital heart disease, intrathoracic masses, fetal airway obstruction, neural tube defects, abdominal wall defects, and skeletal dysplasia.
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- 2012
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27. Large Skin Defect of the Trunk Noted at Birth
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Christopher E. Colby, Samir Mardini, Steven L. Moran, Dawn Marie R. Davis, and Daniel L. Kenney
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medicine.medical_specialty ,Neonatal intensive care unit ,integumentary system ,medicine.diagnostic_test ,business.industry ,Umbilicus (mollusc) ,Physical examination ,Fascia ,Anatomy ,Trunk ,Fetus papyraceous ,Surgery ,body regions ,Lesion ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,medicine ,Abdomen ,medicine.symptom ,business - Abstract
A 1-day-old male infant is transferred to the neonatal intensive care unit with a large congenital skin defect of the inferior chest and abdomen extending in a butterfly distribution to the flanks (Figure 1). Figure 1. Well-demarcated butterfly-shaped lesion affecting skin, muscle, and fascia which spares the umbilicus. Photograph taken less than one day after birth. ### Prenatal and Birth Histories Apgar scores were 8 and 9 at 1 and 5 minutes, respectively. ### Physical Examination
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- 2012
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28. Health Care Professionals' Perspectives on Teleneonatology Through the Lens of Normalization Process Theory
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Gladys B. Asiedu, Katherine Carroll, Ann M. Harris, Christopher E. Colby, and Jennifer L. Fang
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Service (systems architecture) ,Normalization process theory ,Telemedicine ,Medical education ,business.industry ,General Medicine ,teleneonatology ,Focus group ,Community hospital ,Health & Social Care ,Interpersonal relationship ,video telemedicine ,Health care ,newborn resuscitation ,normalization process theory ,business ,Psychology ,Respiratory Medicine ,Research Articles ,qualitative research ,Research Article ,Qualitative research - Abstract
Background and aims Little research has been done on tele‐intensive care unit (ICU) implementation across different types of ICUs, and there exist few studies that have used qualitative research methods to analyze the human and organizational factors influencing optimization of telemedicine for newborn resuscitation. The objective of this study was to understand health care professionals' acceptance, utilization, and integration of video telemedicine for newborn resuscitation (termed teleneonatology) in community hospital settings. Methods Focus group and individual interviews were conducted with 49 health care professionals at six affiliated health system hospitals. Data were gathered from physicians (n = 18), nurses (n = 30), and a nurse practitioner. Data were inductively analyzed using a thematic approach, and then constructs from normalization process theory (NPT) were deductively applied. NPT rendered a general framework to describe and assess how care teams perceive the implementation of teleneonatology and how they interact with this telemedicine service in their local setting. Results Local health care professionals accepted teleneonatology as an important, helpful service, yet its implementation was perceived as both valuable and a threat to professional traditions. Utilization may depend on perceived benefit, mutual understanding of the guidelines, and expectations of use, and other relational, human, contextual, and system factors. Participants in this study agreed on the need for collective work to successfully integrate teleneonatology into the local practice. Discussions NPT uncovered that successful implementation of a teleneonatology program may be facilitated by strong interpersonal relationships among care teams, continuous programmatic training and education, and communicating the clinical value of teleneonatology, including its opportunities and benefits.
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- 2019
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29. Abstracts of Plenary Sessions and Posters Accepted for Presentation at the 2010 Annual Meeting of the Society for Developmental and Behavioral Pediatrics
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Amy L. Weaver, William J. Barbaresi, Gretchen A. Matthews, Robert G. Voigt, Jill M. Killian, Slavica K. Katusic, Christopher E. Colby, Malinda N. Harris, and William A. Carey
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Pediatrics ,medicine.medical_specialty ,business.industry ,Incidence (epidemiology) ,Population based ,medicine.disease ,Developmental psychology ,Psychiatry and Mental health ,Pediatrics, Perinatology and Child Health ,Learning disability ,Developmental and Educational Psychology ,Late preterm ,Medicine ,Attention deficit hyperactivity disorder ,medicine.symptom ,business ,Birth cohort - Published
- 2010
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30. Extracorporeal Membrane Oxygenation for the Treatment of Neonatal Respiratory Failure
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William A. Carey and Christopher E. Colby
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medicine.medical_specialty ,business.industry ,Patient Selection ,medicine.medical_treatment ,Treatment outcome ,Respiratory disease ,Infant, Newborn ,Neonatal respiratory failure ,medicine.disease ,Extracorporeal ,Extracorporeal Membrane Oxygenation ,Treatment Outcome ,surgical procedures, operative ,Anesthesiology and Pain Medicine ,Respiratory failure ,Life support ,medicine ,Extracorporeal membrane oxygenation ,Humans ,Treatment Failure ,Respiratory system ,Respiratory Insufficiency ,Cardiology and Cardiovascular Medicine ,Intensive care medicine ,business - Abstract
This review discusses the use of extracorporeal membrane oxygenation (ECMO) for the treatment of respiratory failure in neonates. After briefly reviewing the early history of neonatal ECMO, the authors describe the respiratory diagnoses most often treated with ECMO and the manner in which affected neonates are deemed to have “failed” conventional therapies and thus require ECMO. After reviewing the most common indications for ECMO, factors that influence the timing of conversion to extracorporeal life support, as well as criteria that may exclude patients from receiving ECMO therapy, are described. At the conclusion of this article, the authors discuss the long-term outcomes of neonates whose respiratory disease was treated with ECMO and the costs associated with that care.
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- 2009
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31. Medical Management of Extremely Low-Birth-Weight Infants in the First Week of Life: A Survey of Practices in the United States
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Tyler K. Hartman, Susan R. Hintz, Autumn Kiefer, Andrea C. Wickremasinghe, William A. Carey, Jonathan N. Johnson, and Christopher E. Colby
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Respiratory Therapy ,medicine.medical_specialty ,Resuscitation ,medicine.medical_treatment ,Infections ,Adrenal Cortex Hormones ,Intensive care ,medicine ,Extracorporeal membrane oxygenation ,Humans ,Neonatology ,Practice Patterns, Physicians' ,Intensive care medicine ,Ductus Arteriosus, Patent ,Cerebral Hemorrhage ,business.industry ,Anti-Inflammatory Agents, Non-Steroidal ,Infant, Newborn ,Obstetrics and Gynecology ,Infant, Low Birth Weight ,United States ,Clinical trial ,Low birth weight ,Private practice ,Health Care Surveys ,Pediatrics, Perinatology and Child Health ,Parenteral Nutrition, Total ,medicine.symptom ,business ,Neonatal resuscitation - Abstract
We sought to determine the current practices of neonatologists in their management of extremely low-birth-weight (< 1000 g) infants. We directly mailed an anonymous survey to the medical directors of 809 neonatal intensive care units in the United States. More than one-third of those surveyed responded, with a substantial majority from intensive care (level III) nurseries or extracorporeal membrane oxygenation centers. Academic centers and private practice environments were both well represented. Some traditional practices have changed, such as beginning resuscitation with 40% rather than 100% oxygen. Many practices vary based on whether neonates are cared for in private versus academic centers, including initial resuscitation method, type of ventilation used, use of intraventricular hemorrhage prophylaxis, and routine antibiotic therapy. Parenteral nutrition composition and the use of inhaled nitric oxide differ based on the responding center's participation in clinical trials. The number of years in practice as a neonatologist does not affect practice decisions. Among all our findings, the prevalence of one potentially harmful practice, the continued use of dexamethasone for corticosteroid therapy, was particularly noteworthy. In conclusion, the strength of evidence does not always predict whether practices are adopted or abandoned. Further research is necessary to clarify the optimal management for this high-risk patient population.
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- 2009
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32. Developmental outcomes for neonatal dural arteriovenous fistulas
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Jonathan N. Johnson, Christopher E. Colby, Corey Raffel, Tyler K. Hartman, and William J. Barbaresi
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medicine.medical_specialty ,Vascular disease ,business.industry ,medicine.medical_treatment ,Macrocephaly ,Arteriovenous fistula ,Arteriovenous malformation ,General Medicine ,medicine.disease ,Surgery ,Hydrocephalus ,Dural arteriovenous fistulas ,Heart failure ,medicine ,Embolization ,medicine.symptom ,business - Abstract
Large dural arteriovenous malformations (DAVMs) accompanied by cardiac failure usually carry a poor prognosis with a high risk of morbidity and death. The authors report on the case of a male neonate with a massive DAVM who presented at birth with macrocephaly and high-output cardiac failure. The child initially underwent treatment with surgical clipping of the large main feeding artery. Hydrocephalus, thought to be due to venous hypertension, developed when the boy was 8 months old. The condition resolved after interventional embolization treatment. The patient did not require placement of a ventriculoperitoneal shunt. At 21 months of age, the child had near normal development without any focal neurological deficits.
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- 2009
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33. Pharmacology Review
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Corryn S. Greenwood and Christopher E. Colby
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medicine.medical_specialty ,Neonatal intensive care unit ,business.industry ,medicine.medical_treatment ,Tracheal intubation ,Endotracheal intubation ,Neuromuscular Blocking Agents ,Atropine ,Anesthesia ,Pediatrics, Perinatology and Child Health ,medicine ,Intubation ,Premedication ,Propofol ,Intensive care medicine ,business ,medicine.drug - Abstract
Advances in the understanding of neonatal pain have created interest in the use of medications during commonly performed procedures in the neonatal intensive care unit. A number of small studies have examined the role of sedatives, narcotics, miscellaneous anesthetics, and neuromuscular blockers in providing a more comfortable experience for the patient during nonemergent tracheal intubation. However, the most effective combination and doses of these medications is currently unknown. This review discusses the findings of selected studies that have been used to improve the intubating experience of patient and clinician.
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- 2009
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34. Interventions To Prevent Retinopathy of Prematurity: A Meta-analysis
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Christopher E. Colby, Fares Alahdab, Jennifer L. Fang, M. Hassan Murad, William A. Carey, and Atsushi Sorita
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Pediatrics ,medicine.medical_specialty ,Parenteral Nutrition ,Blood transfusion ,Antifungal Agents ,medicine.medical_treatment ,Context (language use) ,Infections ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,030225 pediatrics ,Medicine ,Humans ,Retinopathy of Prematurity ,Fluconazole ,Milk, Human ,business.industry ,Infant, Newborn ,Retinopathy of prematurity ,Vitamins ,medicine.disease ,Oxygen ,Systematic review ,Meta-analysis ,Relative risk ,Pediatrics, Perinatology and Child Health ,030221 ophthalmology & optometry ,Observational study ,business ,Erythrocyte Transfusion ,Infant, Premature - Abstract
CONTEXT:The effectiveness of many interventions aimed at reducing the risk of retinopathy has not been well established.OBJECTIVE:To estimate the effectiveness of nutritional interventions, oxygen saturation targeting, blood transfusion management, and infection prevention on the incidence of retinopathy of prematurity (ROP).DATA SOURCES:A comprehensive search of several databases was conducted, including Medline, Embase, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, and Scopus through March 2014.STUDY SELECTION:We included studies that evaluated nutritional interventions, management of supplemental oxygen, blood transfusions, or infection reduction and reported the incidence of ROP and mortality in neonates born at DATA EXTRACTION:We extracted patient characteristics, interventions, and risk of bias indicators. Outcomes of interest were any stage ROP, severe ROP or ROP requiring treatment, and mortality.RESULTS:We identified 67 studies enrolling 21 819 infants. Lower oxygen saturation targets reduced the risk of developing any stage ROP (relative risk [RR] 0.86, 95% confidence interval [CI], 0.77–0.97) and severe ROP or ROP requiring intervention (RR 0.58, 95% CI, 0.45–0.74) but increased mortality (RR 1.15, 95% CI, 1.04–1.29). Aggressive parenteral nutrition reduced the risk of any stage ROP but not severe ROP. Supplementation of vitamin A, E, or inositol and breast milk feeding were beneficial but only in observational studies. Use of transfusion guidelines, erythropoietin, and antifungal agents were not beneficial.LIMITATIONS:Results of observational studies were not replicated in randomized trials. Interventions were heterogeneous across studies.CONCLUSIONS:At the present time, there are no safe interventions supported with high quality evidence to prevent severe ROP.
- Published
- 2016
35. Pharmacology Review
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Tara Lang, Christopher E. Colby, and Tyler K. Hartman
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Parenteral Nutrition - Associated Cholestasis ,medicine.medical_specialty ,Bilirubin ,business.industry ,Gallbladder ,Jaundice ,medicine.disease ,Inferior vena cava ,Gastroenterology ,chemistry.chemical_compound ,Parenteral nutrition ,medicine.anatomical_structure ,Endocrinology ,Cholestasis ,chemistry ,medicine.vein ,Internal medicine ,Pediatrics, Perinatology and Child Health ,Necrotizing enterocolitis ,medicine ,medicine.symptom ,business - Abstract
A male infant was born at 26 6/7 weeks’ gestation to a 38-year-old woman whose pregnancy was complicated by premature rupture of membranes at 20 weeks’ gestation and placental abruption. The infant's birthweight was 910 g and Apgar scores were 5 and 7 at 1 and 5 minutes, respectively. He developed feeding intolerance and experienced four episodes of medically managed suspected necrotizing enterocolitis. He required parenteral nutrition (PN) for a total of 71 days and received full enteral feedings throughout the remainder of his hospitalization without evidence of acholic stools. On postnatal day 42, he developed jaundice, but the remainder of his physical examination findings were normal. Laboratory values at that time included a total bilirubin of 3.3 mg/dL (56.4 mcmol/L) and direct bilirubin of 2.6 mg/dL (44.5 mcmol/L) . The jaundice continued to progress, and on postnatal day 72, total bilirubin measured 9.5 mg/dL (162.5 mcmol/L) and direct bilirubin measured 6.4 mg/dL (109.5 mcmol/L). Abdominal ultrasonography revealed a liver and gallbladder of normal size and echotexture. Doppler flow evaluation demonstrated patency of the hepatic veins and inferior vena cava. The common bile duct was identified and measured 1 mm in diameter. Ursodeoxycholic acid (UDCA) (20 mg/kg per day) was started. The laboratory studies were negative for coagulopathy and glucose lability. Mild elevation of alanine aminotransferase (43 to 108 U/L) and elevated gamma-glutamyl transferase (250 to 256 U/L) were noted. Assessments for cystic fibrosis, alpha-1-antitrypsin deficiency, neonatal iron storage disease, and bile acid synthesis disorders returned negative results. A HIDA scan performed on postnatal day 74 revealed no obvious flow into the intestine, and phenobarbital (5 mg/kg per day) was started . Despite full enteral nutrition and treatment with UDCA and phenobarbital, the direct bilirubin continued to increase to 12.1 mg/dL (206.9 mcmol/L) on postnatal day 97. A repeat HIDA …
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- 2007
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36. Predictive Ability of Direct Antibody Testing in Infants Born to Mothers with Rh(D) and Other Minor Red Blood Cell Antibodies
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Christopher E. Colby, David B. Soma, Timothy J. B. Ulrich, Marc A. Ellsworth, and William A. Carey
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Adult ,Pediatrics ,medicine.medical_specialty ,Erythrocytes ,Disease ,Antibodies ,Cohort Studies ,Erythroblastosis, Fetal ,Coombs test ,Antigen ,Pregnancy ,Positive predicative value ,Medicine ,Humans ,Hyperbilirubinemia ,Retrospective Studies ,Rh-Hr Blood-Group System ,medicine.diagnostic_test ,biology ,business.industry ,Infant, Newborn ,Obstetrics and Gynecology ,Retrospective cohort study ,medicine.disease ,Pediatrics, Perinatology and Child Health ,biology.protein ,Blood Group Antigens ,Female ,Antibody ,business ,Cohort study - Abstract
Objective Hemolytic disease of the newborn (HDN) most commonly occurs in neonates whose mothers carry nonpassively acquired antibodies directed against red blood cell (RBC) antigens. Because affected neonates may develop severe hyperbilirubinemia, early identification of at-risk neonates is critically important. We hypothesized that use of the direct antibody test (DAT) would be of high predictive value in identifying those neonates most likely to meet treatment criteria for hyperbilirubinemia. Study Design We performed a retrospective chart review of all mother–infant pairs in which RBC antibodies were detected on routine prenatal screening during the current pregnancy (2011–2013). We then compared DAT results of neonates who eventually met the treatment criteria for hyperbilirubinemia with those who did not. Main Results Fifty-sixty neonates were born to mothers with clinically significant antibodies. The sensitivity and specificity of a positive DAT result for meeting the treatment criteria were 87.5 and 93.3%, respectively. The positive and negative predictive values were 77.8 and 96.6%, respectively. Conclusion The result of a DAT, obtained in neonates of mothers with clinically relevant alloantibodies, is a specific marker with good positive predictive value for identifying those who are most likely to meet the treatment criteria for hyperbilirubinemia.
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- 2015
37. Developmental and Genetic Outcomes in Children Conceived Through Assisted Reproductive Technologies
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Jonathan N. Johnson, Tyler K. Hartman, and Christopher E. Colby
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Infertility ,Gynecology ,Pregnancy ,medicine.medical_specialty ,education.field_of_study ,In vitro fertilisation ,business.industry ,Incidence (epidemiology) ,Birth weight ,medicine.medical_treatment ,media_common.quotation_subject ,Population ,Fertility ,Reproductive technology ,medicine.disease ,Pediatrics, Perinatology and Child Health ,medicine ,education ,business ,Demography ,media_common - Abstract
After completing this article, readers should be able to: 1. Describe the outcomes of assisted reproductive technologies (ART) for singleton, twin, and other multiple births. 2. Describe the role of fertility in adverse outcomes seen with ART births. 3. Review the association of birth defects with ART. 4. Delineate the association of disease of genomic imprinting with ART. 5. Describe the relationship between ART and the subsequent incidence of neurodevelopmental sequelae. In the 1977 ruling “Carey v. Population Services International,” the United States Supreme Court ruled that the decision to bear children is constitutionally protected. (1) Significant interest already had been shown in the development and improvements of in vitro fertilization (IVF) for infertile couples. The first human pregnancy and human birth using IVF were reported by Steptoe and Edwards in the United Kingdom. (2) Their work resulted in the first baby born via reproductive technologies, Louise Brown, born on July 25, 1978, at Oldham General Hospital in Oldham, United Kingdom. (3) She was born via a planned cesarean section, and her birthweight was 2.61 kg. The first successful viable IVF in the United States was performed by Jones and Seager-Jones in 1981 in Norfolk, Virginia. (4) Assisted reproductive technologies (ART) have seen a recent surge in popularity. The Centers for Disease Control and Prevention (CDC) reported that 122,872 cycles of ART were initiated in 2003, resulting in the delivery of 48,756 neonates, (5) accounting for approximately 1% of all neonates delivered in the United States. The percentage is higher in many countries, including Denmark, where it is estimated that 5% of all deliveries are with the assistance of ART. (6) Couples pursue ART for myriad reasons, including tubal transport factors, ovulatory dysfunction, uterine factors, endometriosis, male- and female-specific factors, and when a cause of infertility is unknown. (5) It would be very …
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- 2006
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38. Utilization and outcomes of neonatal cardiac extracorporeal life support: 1996???2000*
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Peter Rycus, Arlene M. Sheehan, Christopher E. Colby, Susan R. Hintz, William E. Benitz, and Krisa P. Van Meurs
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Respiratory Distress Syndrome, Newborn ,medicine.medical_specialty ,Time Factors ,business.industry ,Transposition of Great Vessels ,Infant, Newborn ,Critical Care and Intensive Care Medicine ,Neonatal respiratory failure ,Persistent Fetal Circulation Syndrome ,Survival Analysis ,Extracorporeal ,Life Support Care ,Extracorporeal Membrane Oxygenation ,Treatment Outcome ,Intensive Care Units, Neonatal ,Life support ,Hypoplastic Left Heart Syndrome ,Pediatrics, Perinatology and Child Health ,medicine ,Humans ,Registries ,Respiratory Insufficiency ,Intensive care medicine ,business ,Retrospective Studies - Abstract
Extracorporeal life support for neonatal respiratory failure has decreased, but utilization and outcome of cardiac extracorporeal life support are not well characterized. Among neonates born 1996-2000, our objects were to evaluate changes in utilization and outcome of cardiac extracorporeal life support and characterize correlates of survival.Retrospective analysis of Extracorporeal Life Support Organization Registry data.Intensive care units participating in the ELSO registry.Patients placed on extracorporeal life support for center-specified "cardiac support" at/=30 days of age from 1996 to 2000. Patients with hypoplastic left heart syndrome were also analyzed separately.None.Patient characteristics and correlates of survival to discharge or transfer were analyzed by chi-square, Student's t-test, and logistic regression analysis. Neonates placed on cardiac extracorporeal life support increased from 112 in 1996 to 200 in 2000 (total n = 740). Overall survival was 34.2%: 28% for hypoplastic left heart syndrome and 35.4% for nonhypoplastic left heart syndrome. For the overall group, no significant correlations were found between survival and year on extracorporeal life support, multiple runs, or diagnosis of hypoplastic left heart syndrome. Diagnoses of transposition of the great arteries (p = .03) or persistent pulmonary hypertension of the neonate (p = .004) and extracorporeal life support at3 days (p = .003) were associated with higher survival. Survivors had fewer mean extracorporeal life support hours (125.5 +/- 121.4 vs. 159.0 +/- 127.6, p = .0006). Logistic regression confirmed significant bivariate findings. A total of 118 hypoplastic left heart syndrome patients were reported from 1996 to 2000. Extracorporeal life support at15 days was associated with improved survival among hypoplastic left heart syndrome patients (p = .03), and survivors had fewer mean extracorporeal life support hours (89.3 +/- 52.3 vs. 147.5 +/- 129.7, p = .015). Logistic regression showed that only greater number of hours on extracorporeal life support was independently associated with nonsurvival.Neonatal cardiac extracorporeal life support use increased substantially from 1996 to 2000, with survival to discharge or transfer in more than one third of patients. Hypoplastic left heart syndrome was not associated with nonsurvival. Fewer hours on extracorporeal life support, diagnoses of persistent pulmonary hypertension of the neonate and transposition of the great arteries, and extracorporeal life support at3 days were associated with survival.
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- 2005
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39. Low Yield of Ancillary Diagnostic Studies in Neonates Infected with Candida
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Susan R. Hintz, Christopher E. Colby, William E. Benitz, and Laura Drohan
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Pediatrics ,medicine.medical_specialty ,Neonatal intensive care unit ,Population ,Infant, Newborn, Diseases ,Intensive Care Units, Neonatal ,Candida albicans ,medicine ,Humans ,education ,Retrospective Studies ,education.field_of_study ,biology ,business.industry ,Incidence (epidemiology) ,Candidiasis ,Infant, Newborn ,Brain ,Obstetrics and Gynecology ,Gestational age ,Retrospective cohort study ,Eye infection ,biology.organism_classification ,Echocardiography ,Pediatrics, Perinatology and Child Health ,Complication ,business ,Eye Infections, Fungal - Abstract
BACKGROUND: Fungal infection can be a significant complication for the critically ill neonate. However, the usefulness of extensive radiologic and ophthalmologic investigations in this population has not been thoroughly elucidated. OBJECTIVE: To report the incidence of organ fungal involvement diagnosed by ancillary testing (echocardiogram, ophthalmologic examination, brain imaging, and renal ultrasound (RUS)) among neonatal intensive care unit (NICU) patients with Candida infection. METHODS: This was a single center review of all NICU patients with Candida-positive cultures of blood, urine, peritoneal fluid, endotracheal tube aspirate, or cerebrospinal fluid from January 1, 1997 to June 1 2002. Data regarding the number of positive cultures, species isolated, and presence of specific risk factors and clinical symptoms were recorded for each case, as well as occurrence, timing and results of ancillary testing. RESULTS: In all, 66 patients had at least one positive culture for Candida. The majority (71%) were
- Published
- 2004
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40. Serum Cytosolic β-Glucosidase Activity in a Rat Model of Necrotizing Enterocolitis
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Christopher E. Colby, Erik D. Skarsgard, Reed A. Dimmitt, Robert H. Glew, R. Lawrence Moss, and Mary Brindle
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Pathology ,medicine.medical_specialty ,Necrosis ,Ischemia ,Ileum ,Gastroenterology ,Rats, Sprague-Dawley ,Enterocolitis, Necrotizing ,Internal medicine ,medicine.artery ,medicine ,Animals ,Humans ,Superior mesenteric artery ,Enterocolitis ,business.industry ,beta-Glucosidase ,medicine.disease ,Rats ,Bowel obstruction ,Disease Models, Animal ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,Necrotizing enterocolitis ,Analysis of variance ,medicine.symptom ,business ,Biomarkers - Abstract
The diagnosis of necrotizing enterocolitis (NEC) is made from a combination of clinical and radiographic findings. There are no useful screening biochemical markers of intestinal injury. The serum concentration of cytosolic beta-glucosidase (CBG), an enzyme found primarily in enterocytes, is markedly elevated in animal models of ischemia and bowel obstruction. We hypothesized that in a rat model of NEC, serum CBG activity would significantly increase before microscopic evidence of severe intestinal injury. Cohorts of 2-wk-old Sprague-Dawley rats (n = 10/cohort) were anesthetized and underwent laparotomy with occlusion of the superior mesenteric artery (SMA). Platelet-activating factor (200 microg/animal) was injected in the proximal duodenum. Serum and intestinal samples were obtained at time 0 (control) and 30, 60, and 90 min of ischemia (I) and after 90 min of I followed by 60 min of reperfusion (I/R). Histopathologic injury was categorized as either no or minimal injury or mural necrosis by two masked investigators and CBG activity was measured by ELISA. Data were analyzed with Fisher's exact test and ANOVA. Only the I/R group had significantly greater mural necrosis compared with the control group (90% versus 0%, respectively, p < 0.001). In contrast, CBG activity was significantly elevated after only 90 min of I and after I/R (15.1 +/- 5.6 and 16.4 +/- 4.3 units/mL, respectively, p < 0.05). We conclude that serum CBG is elevated before transmural intestinal injury in this model and may have utility as an early marker of ischemia in patients at risk for NEC.
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- 2003
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41. Development of a quality assessment scale for retrospective clinical studies in pediatric surgery
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J. M. Anderson, Christopher E. Colby, Jennifer L. Kelsey, R. Lawrence Moss, and Shawn J. Rangel
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medicine.medical_specialty ,Quality Assurance, Health Care ,Concordance ,media_common.quotation_subject ,MEDLINE ,Pediatrics ,Surveys and Questionnaires ,Epidemiology ,Pediatric surgery ,medicine ,Humans ,Medical physics ,Quality (business) ,Reliability (statistics) ,Retrospective Studies ,media_common ,Observer Variation ,business.industry ,Reproducibility of Results ,Retrospective cohort study ,General Medicine ,humanities ,Surgery ,Research Design ,General Surgery ,Pediatrics, Perinatology and Child Health ,business ,Quality assurance - Abstract
Background/Purpose: More than 97% of the clinical research in pediatric surgery consists of retrospective data. Although these studies have significant limitations, they fundamentally shape clinical practice within the field. In this report, the authors describe the development and potential applications of a standardized quality assessment scale designed for retrospective studies in pediatric surgery. Methods: The authors developed a comprehensive quality assessment instrument incorporating 30 items within 3 subscales. These subscales were designed to assess 3 integral components of study design: clinical relevance, reporting methodology, and the strength of conclusions. Global quality ratings (poor, fair, or good) were derived by combining scores from each subscale. To examine inter-rater reliability, 10 retrospective studies from the pediatric surgery literature were assessed with the instrument by 6 independent reviewers. Results: Inter-rater reliability was excellent as assessed by the level of agreement for all items within the instrument (84.6% concordance, n=1,573 total item-choices) and for individual subscales (range, 73.3% to 85.8%, n=60 to 1,258). The extent of agreement among reviewers was 82% for classifying reports into qualitative categories by global quality scores (n = 60). The ranking of papers by individual reviewers was highly predictive of overall ranking by mean quality scores (n = 60 rank pairs, r=0.83; P Conclusions: The authors have developed a standardized and reliable quality assessment scale for the analysis of retrospective data in pediatric surgery. Potential applications include: (1) providing the practicing surgeon with a knowledge base to critically evaluate published retrospective data; (2) providing a standardized methodology for the systematic review of existing retrospective data; and (3) developing standardized reporting guidelines for use in peer-reviewed journals. J Pediatr Surg 38:390-396. Copyright 2003, Elsevier Science (USA). All rights reserved.
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- 2003
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42. Real-time video communication improves provider performance in a simulated neonatal resuscitation
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Jennifer L. Fang, William A. Carey, Christopher E. Colby, Christine M. Lohse, and Tara R. Lang
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Adult ,Male ,medicine.medical_specialty ,Resuscitation ,Telemedicine ,Wilcoxon signed-rank test ,Interprofessional Relations ,Positive pressure ,Video Recording ,Emergency Nursing ,law.invention ,Patient safety ,law ,Reference Values ,Intensive Care Units, Neonatal ,medicine ,Humans ,Computer Simulation ,Neonatology ,Patient Care Team ,business.industry ,Communication ,Infant, Newborn ,Internship and Residency ,medicine.disease ,Cross-Sectional Studies ,Emergency medicine ,Ventilation (architecture) ,Emergency Medicine ,Female ,Medical emergency ,Clinical Competence ,Cardiology and Cardiovascular Medicine ,business ,Neonatal resuscitation - Abstract
Aim To determine if a real-time audiovisual link with a neonatologist, termed video-assisted resuscitation or VAR, improves provider performance during a simulated neonatal resuscitation scenario. Methods Using high-fidelity simulation, 46 study participants were presented with a neonatal resuscitation scenario. The control group performed independently, while the intervention group utilized VAR. Time to effective ventilation was compared using Wilcoxon rank sum tests. Providers' use of the corrective steps for ineffective ventilation per the NRP algorithm was compared using Cochran–Armitage trend tests. Results The time needed to establish effective ventilation was significantly reduced in the intervention group when compared to the control group (mean time 2min 42s versus 4min 11s, p In the setting of ineffective ventilation, only 35% of control subjects used three or more of the first five corrective steps and none of them used all five steps. Providers in the control group most frequently neglected to open the mouth and increase positive pressure. In contrast, all of those in the intervention group used all of the first five corrective steps, p All participants in the control group decided to intubate the infant to establish effective ventilation, compared to none in the intervention group, p Conclusion Using VAR during a simulated neonatal resuscitation scenario significantly reduces the time to establish effective ventilation and improves provider adherence to NRP guidelines. This technology may be a means for regional centers to support local providers during a neonatal emergency to improve patient safety and improve neonatal outcomes.
- Published
- 2014
43. Predicting developmental outcomes for premature infants: Neurobiologic Risk Score versus Neurodevelopmental Risk Examination at neonatal intensive care unit discharge
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Christopher E. Colby, William J. Barbaresi, Amy L. Weaver, Slavica K. Katusic, Tyler K. Hartman, Andrea C. Wickremasinghe, and Robert G. Voigt
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Pediatrics ,medicine.medical_specialty ,Corrected Age ,Framingham Risk Score ,Neonatal intensive care unit ,business.industry ,Pediatrics, Perinatology and Child Health ,medicine ,Gestational age ,Chronological age ,business - Abstract
Prematurity is associated with poor neurodevelopmental outcomes, and laws mandate the provision of early intervention services to those infants with disability. However, it is often difficult to identify early which infants would benefit most from these services. The Neurobiologic Risk Score (NBRS) and the Neurodevelopmental Risk Exam (NRE) are instruments used to assess infants at near-term corrected age. These instruments have been shown to correlate with later developmental outcomes. However, the environment of the neonatal intensive care unit (NICU) has changed since the NBRS and NRE were first validated, and it is not known whether they are still able to accurately predict future developmental outcomes. The objective of this study was therefore to examine the ability of the NBRS and NRE, both alone and in combination with socio-economic variables, to predict future developmental outcomes in the contemporary NICU. The subjects were 219 neonates of less than 32 weeks' gestational age discharged from the NICU between November 2001 and December 2006 who had undergone both the NBRS and NRE. Infants were assessed at chronological age 6, 12 and 24 months, with developmental quotients being assigned at these ages. Parental socio-economic data were also collected and analysed. The hypothesis was that the NBRS and NRE would be less effective at predicting neurodevelopmental outcomes in the contemporary NICU. The best measure of future developmental outcome is likely to need to include both neurobiological and socio-economic risk factors.
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- 2009
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44. Comprehensive analysis of risk factors for acquisition ofPseudomonas aeruginosa in young children with cystic fibrosis
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Michael R. Kosorok, Michael J. Rock, Guanghong Shen, Anita Laxova, Mark Splaingard, Philip M. Farrell, Christopher E. Colby, and Muhammad Jalaluddin
- Subjects
Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Pseudomonas aeruginosa ,business.industry ,Odds ratio ,medicine.disease_cause ,medicine.disease ,Cystic fibrosis ,Surgery ,law.invention ,El Niño ,Randomized controlled trial ,law ,Internal medicine ,Pediatrics, Perinatology and Child Health ,Epidemiology ,medicine ,Risk factor ,business ,Survival analysis - Abstract
The objective of this study was to identify risk factors of significance for acquisition of Pseudomonas aeruginosa by children with cystic fibrosis (CF). Our working hypothesis is that exposure of infants and young children with CF to older, infected patients increases their risk for acquiring this organism. A special opportunity arose to study this question in detail, as we have been performing a randomized clinical trial of neonatal screening for CF throughout the state of Wisconsin during the period of 1985-1994. Patients were selected for this study based on either early identification through screening or diagnosis by standard methods. A longitudinal protocol employed at Wisconsin's two CF Centers includes routine cultures of respiratory secretions and collection of clinical, demographic, and activity information on patients and their families. Previous observations in our trial revealed that one center at an old hospital in an urban location showed a significantly shorter time to acquisition of P. aeruginosa for CF patients followed there. To study the center effect further, we performed statistical analyses using survival curves and stepwise regression analysis of all life history covariates available. The results of these analyses showed that the statistically significant correlations involve the following risk factors: 1) center and old hospital (r=0.42); 2) center and original physician (r=0.61); 3) center and exposure to pseudomonas-positive patients (r=0.29); and 4) population density and urban location (r=0.49). The final statistical model demonstrated that increased risk due to aerosol use (odds ratio=3.45, P=0.014) and a protective effect associated with education of the mother (odds ratio=0.81, P=0.024) were the most significant factors for acquisition of P. aeruginosa. The previously observed center effect was confined to the 1985-1990 interval at the old hospital (odds ratio=4.43, P < 0.001). We conclude that multiple factors are involved in increasing the risk of young children with CF to acquire P. aeruginosa, and that the observed center effect can best be explained by a combination of factors. These results suggest that facilities and methods used to care for young children with CF can significantly influence their likelihood of acquiring pseudomonas in the respiratory tract.
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- 1998
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45. An Extremely Low-Birthweight Infant Who Has Scrotal Discoloration
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Christopher E. Colby and Jose A. Ossa
- Subjects
Mechanical ventilation ,medicine.medical_specialty ,Mean arterial pressure ,Respiratory distress ,business.industry ,medicine.medical_treatment ,medicine.disease ,Surgery ,Hypoxemia ,Sepsis ,medicine.anatomical_structure ,Parenteral nutrition ,Ductus arteriosus ,Anesthesia ,Pediatrics, Perinatology and Child Health ,medicine ,Continuous positive airway pressure ,medicine.symptom ,business - Abstract
Prenatal History: ### Birth History: ### Hospital Course: The infant had respiratory distress syndrome that required mechanical ventilation and three doses of exogenous surfactant; he was extubated to nasal continuous positive airway pressure on the eighth postnatal day. Additionally, he received three doses of prophylactic indomethacin during the first 72 hours after birth. His ductus arteriosus was closed upon completion of indomethacin treatment. He was treated with cefotaxime and ampicillin for the first eight postnatal days for culture-negative presumed sepsis. Within the first 24 hours of birth, he received dopamine, an insulin infusion to treat hyperkalemia, and nitric oxide for 36 hours due to refractory hypoxemia. His nutritional requirements were delivered with total parenteral nutrition; enteral feedings had not been started. He did not receive postnatal steroids. Nine days after birth, he developed inguinal and scrotal discoloration (Fig. 1). These findings were associated with hypotension (mean arterial pressure, 20 mm Hg), decreased urine output (0.13 mL/kg per hour), hypothermia (core body temperature of 96.4°F [35.8°C]), and five episodes of …
- Published
- 2006
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46. Heart-rate-corrected QT interval evolution in premature infants during the first week of life
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Christopher E. Colby, Michael J. Ackerman, Timothy J. B. Ulrich, Adeel S. Zubair, William A. Carey, Brianna C. MacQueen, and Marc A. Ellsworth
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Male ,Pediatrics ,medicine.medical_specialty ,Long QT syndrome ,QT interval ,Electrocardiography ,Heart Conduction System ,Heart Rate ,Intensive care ,Heart rate ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Analysis of Variance ,medicine.diagnostic_test ,business.industry ,Age Factors ,Infant, Newborn ,medicine.disease ,Pediatrics, Perinatology and Child Health ,Cohort ,Gestation ,Female ,Cardiology and Cardiovascular Medicine ,business ,Infant, Premature - Abstract
Automated monitoring of the QT interval is increasingly common in a variety of clinical settings. A better understanding of how the heart-rate-corrected QT interval (QTc) evolves in early postnatal life is needed before its clinical utility in neonates can be determined. This study aimed to use real-time bedside monitoring as a tool to describe the QTc evolution of premature neonates during the first week of life. All neonates born at a gestation age (GA) of 31 weeks or later and admitted to the level 2 intensive care nursery of the authors’ institution between December 2012 and March 2013 were included in this study. The authors prospectively collected QTc values at 15-min intervals during the first week of life, then used two-way analysis of variance (ANOVA) to compare these data among three GA cohorts: 31 to
- Published
- 2014
47. QTc interval prolongation and severe apneas associated with a change in infant positioning
- Author
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Timothy J. B. Ulrich, Marc A. Ellsworth, Michael J. Ackerman, William A. Carey, and Christopher E. Colby
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Male ,Supine position ,medicine.diagnostic_test ,Surrogate endpoint ,business.industry ,Apnea ,Infant, Newborn ,Sudden infant death syndrome ,QT interval ,Patient Positioning ,Autonomic nervous system ,Prone position ,Electrocardiography ,Anesthesia ,Pediatrics, Perinatology and Child Health ,medicine ,Intensive Care, Neonatal ,Prone Position ,Supine Position ,Humans ,medicine.symptom ,business - Abstract
For more than a decade there has been considerable interest in the role of QT interval prolongation in the pathogenesis of sudden infant death syndrome. It has been proposed that the QT interval is a surrogate marker for autonomic instability and can be used to identify infants at risk for significant morbidity and mortality, including sudden infant death syndrome. We present the case of an infant that experienced a significant increase in his QTc, as detected by continuous QTc monitoring in the NICU after repositioning from a supine to prone position. This increase from a 413 ± 6 millisecond baseline average to 500 milliseconds was sustained for 2 hours and associated with clinically relevant apnea that ultimately required repositioning of the infant back to the supine position. Repositioning resulted in an immediate decrease of the QTc back to the previous baseline and termination of the apneic events. This case demonstrates an example of how the use of continuous QTc monitoring in the NICU setting may be used to detect QTc-accentuating factors in real time and identify situations that cause perturbations in an infant’s autonomic nervous system.
- Published
- 2013
48. Perceptions and practices of therapeutic hypothermia in American neonatal intensive care units
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Lindsey R. Haas, Marc A. Ellsworth, Christopher E. Colby, William A. Carey, Tyler K. Hartman, Malinda N. Harris, and Tara R. Lang
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medicine.medical_specialty ,Standard of care ,MEDLINE ,Gestational Age ,Hypoxia ischemia ,Hypothermia, Induced ,Intensive care ,Intensive Care Units, Neonatal ,medicine ,Humans ,Intensive care medicine ,Monitoring, Physiologic ,business.industry ,Patient Selection ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,Electroencephalography ,Hypothermia ,Magnetic Resonance Imaging ,United States ,Family medicine ,Pediatrics, Perinatology and Child Health ,Hypoxia-Ischemia, Brain ,Practice Guidelines as Topic ,medicine.symptom ,business - Abstract
In 2005, therapeutic hypothermia (TH) was used in few American neonatal intensive care units (NICUs) with great variability in practices. We hypothesized that TH would be used with greater frequency and uniformity today.We surveyed directors of 797 NICUs queried in our prior study to determine attitudes toward and practices of TH.Of the 781 participants with valid addresses, we received completed surveys from 330 (42.3%). There was an increase in the number of respondents who believed that TH is effective (85% versus 31%, p 0.0001). More NICUs used TH (50% versus 6%, p 0.0001) and nearly all not offering TH transferred eligible neonates to centers that did (97% versus 29%, p 0.0001). There has been increased standardization of TH practices with regard to enrollment criteria, duration, and methods of monitoring.TH has become standard of care for the treatment of HIE in the United States. Most NICUs that use TH adhere to protocols, but variation still exists in TH practices.
- Published
- 2013
49. Validating A Model To Predict Disease Progression Outcomes In Patients With COPD
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David A. Lomas, Hana Muellerova, Nancy Risebrough, A. Exuzides, Afisi S. Ismaila, Tim Baker, M. Rutten van-Molken, S. Gonzalez McQuire, Christopher E. Colby, Ruth Tal-Singer, and Andrew Briggs
- Subjects
Oncology ,COPD ,medicine.medical_specialty ,Text mining ,business.industry ,Health Policy ,Internal medicine ,Disease progression ,Public Health, Environmental and Occupational Health ,medicine ,In patient ,medicine.disease ,business - Published
- 2014
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50. Rapid deterioration of a newborn with congenital spinal cord astrocytoma
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Christopher E. Colby, Tress L. Goodwin, Paul G. Fisher, and Paul J. Rozance
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Male ,Cancer Research ,Pathology ,medicine.medical_specialty ,medicine.medical_treatment ,Spinal Cord Neoplasm ,Astrocytoma ,Thoracic Vertebrae ,Central nervous system disease ,Fatal Outcome ,medicine ,Humans ,Spinal Cord Neoplasms ,medicine.diagnostic_test ,business.industry ,Spinal cord astrocytoma ,Infant, Newborn ,Laminectomy ,Magnetic resonance imaging ,Malignant astrocytoma ,medicine.disease ,Spinal cord ,Magnetic Resonance Imaging ,medicine.anatomical_structure ,Oncology ,Pediatrics, Perinatology and Child Health ,business - Published
- 2001
- Full Text
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