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Pardo AC, Carrasco M, Wintermark P, Nunes D, Chock VY, Sen S, Wusthoff CJ. Neuromonitoring practices for neonates with congenital heart disease: a scoping review. Pediatr Res 2024:10.1038/s41390-024-03484-x. [PMID: 39183308 DOI: 10.1038/s41390-024-03484-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/27/2024]
Abstract
Neonates with congenital heart disease (CHD) are at risk for adverse neurodevelopmental outcomes. This scoping review summarizes neuromonitoring methods in neonates with CHD. We identified 84 studies investigating the use of near-infrared spectroscopy (NIRS) (n = 37), electroencephalography (EEG) (n = 20), amplitude-integrated electroencephalography (aEEG) (n = 10), transcranial Doppler sonography (TCD) (n = 6), and multimodal monitoring (n = 11). NIRS was used to evaluate cerebral oxygenation, identify risk thresholds and adverse events in the intensive care unit (ICU), and outcomes. EEG was utilized to screen for seizures and to predict adverse outcomes. Studies of aEEG have focused on characterizing background patterns, detecting seizures, and outcomes. Studies of TCD have focused on correlation with short-term clinical outcomes. Multimodal monitoring studies characterized cerebral physiologic dynamics. Most of the studies were performed in single centers, had a limited number of neonates (range 3-183), demonstrated variability in neuromonitoring practices, and lacked standardized approaches to neurodevelopmental testing. We identified areas of improvement for future research: (1) large multicenter studies to evaluate developmental correlates of neuromonitoring practices; (2) guidelines to standardize neurodevelopmental testing methodologies; (3) research to address geographic variation in resource utilization; (4) integration and synchronization of multimodal monitoring; and (5) research to establish a standardized framework for neuromonitoring techniques across diverse settings. IMPACT: This scoping review summarizes the literature regarding neuromonitoring practices in neonates with congenital heart disease (CHD). The identification of low cerebral oxygenation thresholds with NIRS may be used to identify neonates at risk for adverse events in the ICU or adverse neurodevelopmental outcomes. Postoperative neuromonitoring with continuous EEG screening for subclinical seizures and status epilepticus, allow for early and appropriate therapy. Future studies should focus on enrolling larger multicenter cohorts of neonates with CHD with a standardized framework of neuromonitoring practices in this population. Postoperative neurodevelopmental testing should utilize standard assessments and testing intervals.
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Affiliation(s)
- Andrea C Pardo
- Department of Pediatrics (Neurology and Epilepsy). Northwestern University Feinberg School of Medicine, Chicago, IL, US.
| | - Melisa Carrasco
- Department of Neurology. University of Wisconsin School of Medicine and Public Health, Madison, WI, US
| | - Pia Wintermark
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, Qc, Canada
| | - Denise Nunes
- Galter Health Sciences Library. Northwestern University Feinberg School of Medicine, Chicago, IL, US
| | - Valerie Y Chock
- Department of Pediatrics (Neonatology), Lucile Packard Children's Hospital and Stanford University, Palo Alto, CA, US
| | - Shawn Sen
- Department of Pediatrics (Neonatology). Northwestern University Feinberg School of Medicine, Chicago, IL, US
- Department of Pediatrics, University of California Irvine, Orange, CA, US
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Tran NN, Chwa JS, Brady KM, Borzage M, Brecht ML, Woon JX, Miner A, Merkel CA, Friedlich P, Peterson BS, Wood JC. Cerebrovascular responses to a 90° tilt in healthy neonates. Pediatr Res 2024; 95:1851-1859. [PMID: 38280952 PMCID: PMC11245387 DOI: 10.1038/s41390-024-03046-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/30/2023] [Accepted: 01/07/2024] [Indexed: 01/29/2024]
Abstract
BACKGROUND Tilts can induce alterations in cerebral hemodynamics in healthy neonates, but prior studies have only examined systemic parameters or used small tilt angles (<90°). The healthy neonatal population, however, are commonly subjected to large tilt angles (≥90°). We sought to characterize the cerebrovascular response to a 90° tilt in healthy term neonates. METHODS We performed a secondary descriptive analysis on 44 healthy term neonates. We measured cerebral oxygen saturation (rcSO2), oxygen saturation (SpO2), heart rate (HR), breathing rate (BR), and cerebral fractional tissue oxygen extraction (cFTOE) over three consecutive 90° tilts. These parameters were measured for 2-min while neonates were in a supine (0°) position and 2-min while tilted to a sitting (90°) position. We measured oscillometric mean blood pressure (MBP) at the start of each tilt. RESULTS rcSO2 and BR decreased significantly in the sitting position, whereas cFTOE, SpO2, and MBP increased significantly in the sitting position. We detected a significant position-by-time interaction for all physiological parameters. CONCLUSION A 90° tilt induces a decline in rcSO2 and an increase in cFTOE in healthy term neonates. Understanding the normal cerebrovascular response to a 90° tilt in healthy neonates will help clinicians to recognize abnormal responses in high-risk infant populations. IMPACT Healthy term neonates (≤14 days old) had decreased cerebral oxygen saturation (~1.1%) and increased cerebral oxygen extraction (~0.01) following a 90° tilt. We detected a significant position-by-time interaction with all physiological parameters measured, suggesting the effect of position varied across consecutive tilts. No prior study has characterized the cerebral oxygen saturation response to a 90° tilt in healthy term neonates.
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Affiliation(s)
- Nhu N Tran
- Institute for the Developing Mind, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.
- Fetal and Neonatal Institute, Division of Neonatology, Children's Hospital Los Angeles, Los Angeles, CA, USA.
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Jason S Chwa
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Kenneth M Brady
- Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Matthew Borzage
- Fetal and Neonatal Institute, Division of Neonatology, Children's Hospital Los Angeles, Los Angeles, CA, USA
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mary-Lynn Brecht
- School of Nursing, University of California, Los Angeles, Los Angeles, CA, USA
| | - Jessica X Woon
- Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, USA
| | - Anna Miner
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Carlin A Merkel
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Philippe Friedlich
- Fetal and Neonatal Institute, Division of Neonatology, Children's Hospital Los Angeles, Los Angeles, CA, USA
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Bradley S Peterson
- Institute for the Developing Mind, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - John C Wood
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, CA, USA
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Theurel Martín DE, Alvarado Socarras JL, Manrique Hernández EF, Sandoval MA, Coronado Munoz AJ. Presurgical Use of Hypoxic Mixture for Systemic Perfusion Improvement in Neonates With Complex Congenital Heart Disease: A Systematic Review and Meta-Analysis. Cureus 2024; 16:e53409. [PMID: 38435156 PMCID: PMC10908418 DOI: 10.7759/cureus.53409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2024] [Indexed: 03/05/2024] Open
Abstract
Oxygen therapy is essential for the survival of preterm babies and critically ill newborns; however, it has the potential to cause harm through hypoxemia or hyperoxemia. Newborns with complex congenital heart diseases (CHD) suffer from oxygen fluctuations due to the disease and its treatments, altering pre and postnatal development. The objective of this study is to evaluate the evidence for using a hypoxic mixture to decrease pulmonary over-circulation and improve systemic perfusion before surgical interventions in newborns with complex CHD that course with pulmonary over-circulation and systemic hypoperfusion. A search was conducted in PubMed, EMBASE, LILACS, Scielo, Taylor and Francis, SAGE, and Science Direct databases from 2000 to 2022 by two independent authors, including articles with hypoxic mixture treatment in observational studies or trials, with pre-treatment and post-treatment measurements in the same patient, or two groups or more comparisons. Six articles were selected, with a total of 75 patients. The primary outcome was improved systemic circulation and decreased pulmonary over-circulation measured directly with Qp/Qs and indirectly with oxygen saturation and cerebral near-infrared spectroscopy (NIRS). In addition, we performed a meta-analysis for oxygen saturation and cerebral NIRS. Oxygen saturation was the value uniformly reported; three studies reported a significantly lower oxygen saturation after the hypoxic mixture. The cerebral NIRS was measured in 4 studies, with inconsistent results. After using the hypoxic mixture, the Qp/Qs calculation was lower in the two studies but was not statistically significant. The meta-analysis for oxygen saturation showed a fixed effect post-hypoxic therapy of -0.7 (-1.06; -0.35), p < 0.001. The meta-analysis of two studies that measured cerebral NIRS did not show a statistically significant difference at 12 and 24 hours. In conclusion, this is the first systematic review and meta-analysis regarding the pre-operative use of hypoxic gas mixtures for newborns with complex congenital heart disease. Treatment results in lower oxygen saturations, but there is a lack of evidence of improvement in systemic perfusion. The utilization of this therapy is controversial, and better evidence is necessary.
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Affiliation(s)
| | | | | | - Mónica A Sandoval
- Pediatric Critical Care Medicine, University of Miami, Coral Gables, USA
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Tran M, Miner A, Merkel C, Sakurai K, Woon J, Ayala J, Nguyen J, Lopez J, Friedlich P, Votava-Smith JK, Tran NN. Sociodemographic profile associated with congenital heart disease among infants <1 year old. J Pediatr Nurs 2023; 73:e618-e623. [PMID: 37957083 PMCID: PMC10841755 DOI: 10.1016/j.pedn.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/01/2023] [Accepted: 11/05/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE Congenital heart disease affects thousands of newborns each year in the United States. Previous United States-based research has explored how sociodemographic factors may impact health outcomes in infants with congenital heart disease; however, their impact on the incidence of congenital heart disease is unclear. We explored the sociodemographic profile related to congenital heart disease to help address health disparities that arise from race and social determinants of health. Defining the sociodemographic factors associated with congenital heart disease will encourage implementation of potential preventative measures. DESIGN AND METHODS We conducted a secondary analysis of longitudinally collected data comparing 39 infants with congenital heart disease and 30 healthy controls. We used a questionnaire to collect sociodemographic data. Pearson's chi-square test/Fisher's exact tests analyzed the associations among different sociodemographic factors between infants with congenital heart disease and healthy controls. RESULTS We found a statistically significant difference in maternal education between our 2 groups of infants (p = 0.004). CONCLUSION Maternal education was associated with congenital heart disease. Future studies are needed to further characterize sociodemographic factors that may predict and impact the incidence of congenital heart disease and to determine possible interventions that may help decrease health disparities regarding the incidence of congenital heart disease. PRACTICE IMPLICATIONS Understanding the associations between maternal sociodemographic factors and infant congenital heart disease would allow clinicians to identify mothers at higher risk of having an infant with congenital heart disease.
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Affiliation(s)
- Michelle Tran
- Department of Population and Public Health Sciences, Keck School of Medicine of University of Southern California (KSOM USC) and Division of Research on Children, Youth, and Families, The Saban Research Institute, Children's Hospital Los Angeles (CHLA), Los Angeles, CA, United States of America.
| | - Anna Miner
- Department of Population and Public Health Sciences, Keck School of Medicine of University of Southern California (KSOM USC) and Division of Research on Children, Youth, and Families, The Saban Research Institute, Children's Hospital Los Angeles (CHLA), Los Angeles, CA, United States of America
| | - Carlin Merkel
- Department of Medicine, KSOM USC and Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, United States of America
| | - Kenton Sakurai
- Department of Medicine, KSOM USC and Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, United States of America
| | - Jessica Woon
- Department of Biological Sciences, USC Dornsife College of Letters, Arts, and Sciences and Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, United States of America
| | - John Ayala
- Cardiac Registry Support, St. Cloud, MN, United States of America
| | - Jennifer Nguyen
- Department of Health and Human Sciences, USC Dornsife College of Letters, Arts, and Sciences and Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, United States of America
| | - Jeraldine Lopez
- Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, United States of America
| | - Philippe Friedlich
- Fetal and Neonatal Institute, Division of Neonatology, CHLA, and Department of Pediatrics, KSOM USC, Los Angeles, CA, United States of America
| | - Jodie K Votava-Smith
- Division of Cardiology, CHLA and KSOM USC, Los Angeles, CA, United States of America
| | - Nhu N Tran
- Division of Neonatology, CHLA, and KSOM USC, Los Angeles, CA, United States of America
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Kimura S, Shimizu K, Izumi K, Kanazawa T, Mizuno K, Iwasaki T, Morimatsu H. Regional Cerebral Oxygen Saturation and Estimated Oxygen Extraction Ratio as Predictive Markers of Major Adverse Events in Infants with Congenital Heart Disease. Pediatr Cardiol 2023:10.1007/s00246-023-03158-1. [PMID: 37029812 DOI: 10.1007/s00246-023-03158-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/28/2023] [Indexed: 04/09/2023]
Abstract
Regional cerebral oxygen saturation (ScO2) determined by near-infrared spectroscopy, monitoring both arterial and venous blood oxygenation of the brain, could reflect the balance between oxygen delivery and consumption. The aim of this study was to determine the predictabilities of ScO2 and estimated oxygen extraction ratio (eO2ER) with outcomes in infants with congenital heart disease (CHD). This study was a two-center, retrospective study of patients at 12 months of age or younger with CHD who underwent cardiac surgery. The primary outcome was a composite of one or more major adverse events (MAEs) after surgery: death from any cause, circulatory collapse that needed cardiopulmonary resuscitation, and requirement for extracorporeal membrane oxygenation. Based on the assumptions of arterial to venous blood ratio, eO2ER was calculated. A total of 647 cases were included in this study. MAEs occurred in 16 patients (2.5%). There were significant differences in post-bypass ScO2 [46.61 (40.90, 52.05) vs. 58.52 (51.52, 66.08), p < 0.001] and post-bypass eO2ER [0.66 (0.60, 0.78) vs. 0.52 (0.43, 0.61), p < 0.001] between patients with MAEs and patients without MAEs. Area under the receiver operating curve (AUROC) of post-bypass ScO2 was 0.818 (95% confidence interval: 0.747-0.889), AUROC of post-bypass eO2ER was 0.783 (0.697-0.870) and AUROC of post-bypass maximum serum lactate level was 0.635 (0.525-0.746). Both ScO2 and eO2ER, especially after weaning off bypass, are acceptable predictive markers for predicting MAEs after cardiac surgery in infants.(227 words).
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Affiliation(s)
- Satoshi Kimura
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan.
| | - Kazuyoshi Shimizu
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Kaoru Izumi
- Department of Anesthesia, Fukuoka Children's Hospital, 5-1-1 Kashiiteriha, Higashi-Ku, Fukuoka, 813-0017, Japan
| | - Tomoyuki Kanazawa
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Keiichiro Mizuno
- Department of Anesthesia, Fukuoka Children's Hospital, 5-1-1 Kashiiteriha, Higashi-Ku, Fukuoka, 813-0017, Japan
| | - Tatsuo Iwasaki
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Hiroshi Morimatsu
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
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Tran M, Miner A, Merkel C, Sakurai K, Woon J, Ayala J, Nguyen J, Lopez J, Votava-Smith JK, Tran NN. Sociodemographic Profile Associated with Congenital Heart Disease among Infants Less than 1 Year Old. RESEARCH SQUARE 2023:rs.3.rs-2548938. [PMID: 36798365 PMCID: PMC9934769 DOI: 10.21203/rs.3.rs-2548938/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Background Congenital heart disease (CHD) affects thousands of newborns each year in the United States (US). Infants born with CHD have an increased risk of adverse health outcomes compared to healthy infants. These outcomes include, but are not limited to, neurodevelopmental, surgical, and mortality-related outcomes. Previous US-based research has explored how sociodemographic factors may impact these health outcomes in infants with CHD; however, their impact on the risk of CHD is unclear. This study aims to explore the sociodemographic profile related to CHD to help address health disparities that arise from race and social determinants of health. Defining the sociodemographic factors associated with CHD will encourage policy change and the implementation of preventative measures. Methods This study is a secondary analysis of longitudinally collected data. We compared infants with CHD and healthy controls. We used a questionnaire to collect sociodemographic data. Pearson's chi-square test/Fisher's exact tests analyzed the associations among different sociodemographic factors between infants with CHD and healthy controls. Results We obtained sociodemographic factors from 30 healthy control infants and 39 infants with CHD. We found a statistically significant difference in maternal education between our 2 groups of infants (p=0.004). Conclusion Maternal education is associated with CHD. Future studies are needed to further characterize sociodemographic factors that may predict and impact the risk of CHD and to determine possible interventions that may help decrease health disparities regarding the risk of CHD.
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Affiliation(s)
- Michelle Tran
- University of Southern California/Children's Hospital of Los Angeles
| | - Anna Miner
- University of Southern California/Children's Hospital of Los Angeles
| | - Carlin Merkel
- University of Southern California/Children's Hospital of Los Angeles
| | - Kenton Sakurai
- University of Southern California/Children's Hospital of Los Angeles
| | - Jessica Woon
- University of Southern California/Children's Hospital of Los Angeles
| | | | - Jennifer Nguyen
- University of Southern California/Children's Hospital of Los Angeles
| | | | | | - Nhu N Tran
- University of Southern California/Children's Hospital of Los Angeles
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Tran NN, Desai J, Votava-Smith JK, Brecht ML, Vanderbilt D, Panigrahy A, Mackintosh L, Brady KM, Peterson BS. Factor Analysis of the Einstein Neonatal Neurobehavioral Assessment Scale in Infants with Congenital Heart Disease and Healthy Controls. J Child Neurol 2022; 37:851-863. [PMID: 35918821 PMCID: PMC9561959 DOI: 10.1177/08830738221115982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Administration of the Einstein Neonatal Neurobehavioral Assessment Scale (ENNAS) can be time-consuming, and items can be highly correlated. We aimed to determine: (1) its factor analytic structure; (2) the validity of the factor structure; and (3) the associations of physiologic measures with factor scores. Methods: A factor analysis reduced 21 ENNAS items into 5 factors in 57 congenital heart disease (CHD) and 35 healthy infants. Multiple linear regressions examined the association of factor scores with group, gestational age, and physiologic variables. Results: 5-factor solution: 1 (Orienting Reflex), 2 (Extensor Axial Tone), 3 (Primitive Reflexes), 4 (Flexor Tone), 5 (Reflexive Tone Around Extremity Joints). Moderate to strong evidence supported: face, discriminant, and construct validity of these factors, with Factor 2 having the strongest. Conclusions: Components of Factor 2 may provide similar information about neonatal development, thus reducing the time for and burden of administration for researchers and clinicians.
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Affiliation(s)
- Nhu N. Tran
- Institute for the Developing Mind, The Saban Research Institute, Children’s Hospital Los Angeles and Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, United States of America,Fetal and Neonatal Institute, Division of Neonatology Children's Hospital Los Angeles, Department of Pediatrics and Keck School of Medicine, University of Southern California, Los Angeles, United States of America,Corresponding Author
| | - Jay Desai
- Division of Neurology, Children’s Hospital Los Angeles and Keck School of Medicine, University of Southern California, Los Angeles, United States of America
| | - Jodie K. Votava-Smith
- Division of Cardiology, Children’s Hospital Los Angeles and Keck School of Medicine, University of Southern California, Los Angeles, United States of America
| | - Mary-Lynn Brecht
- School of Nursing, University of California, Los Angeles, Los Angeles, United States of America
| | - Douglas Vanderbilt
- Fetal and Neonatal Institute, Division of Neonatology Children's Hospital Los Angeles, Department of Pediatrics and Keck School of Medicine, University of Southern California, Los Angeles, United States of America
| | - Ashok Panigrahy
- University of Pittsburgh Medical Center, Children’s Hospital of Pittsburgh, Pittsburgh, United States of America and Department of Pediatric Radiology, Children’s Hospital Los Angeles, Los Angeles, United States of America
| | - Liza Mackintosh
- Division of General Pediatrics, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Kenneth M. Brady
- Lurie Children's Hospital of Chicago, Anesthesiology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Bradley S. Peterson
- Institute for the Developing Mind, The Saban Research Institute, Children’s Hospital Los Angeles and Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, United States of America,Department of Psychiatry, Keck School of Medicine, University of Southern California, Los Angeles, United States of America
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Tran NN, Tran M, Panigrahy A, Brady KM, Votava-Smith JK. Association of Cerebrovascular Stability Index and Head Circumference Between Infants With and Without Congenital Heart Disease. Pediatr Cardiol 2022; 43:1624-1630. [PMID: 35426499 DOI: 10.1007/s00246-022-02891-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/23/2022] [Indexed: 11/30/2022]
Abstract
Congenital heart disease (CHD) is a common birth defect in the United States. CHD infants are more likely to have smaller head circumference and neurodevelopmental delays; however, the cause is unknown. Altered cerebrovascular hemodynamics may contribute to neurologic abnormalities, such as smaller head circumference, thus we created a novel Cerebrovascular Stability Index (CSI), as a surrogate for cerebral autoregulation. We hypothesized that CHD infants would have an association between CSI and head circumference. We performed a prospective, longitudinal study in CHD infants and healthy controls. We measured CSI and head circumference at 4 time points (newborn, 3, 6, 9 months). We calculated CSI by subtracting the average 2-min sitting from supine cerebral oxygenation (rcSO2) over three consecutive tilts (0-90°), then averaged the change score for each age. Linear regressions quantified the relationship between CSI and head circumference. We performed 177 assessments in total (80 healthy controls, 97 CHD infants). The average head circumference was smaller in CHD infants (39.2 cm) compared to healthy controls (41.6 cm) (p < 0.001) and head circumference increased by 0.27 cm as CSI improved in the sample (p = 0.04) overall when combining all time points. Similarly, head circumference increased by 0.32 cm as CSI improved among CHD infants (p = 0.04). We found CSI significantly associated with head circumference in our sample overall and CHD infants alone, which suggests that impaired CSI may affect brain size in CHD infants. Future studies are needed to better understand the mechanism of interaction between CSI and brain growth.
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Affiliation(s)
- Nhu N Tran
- Division of Neonatology, Children's Hospital Los Angeles (CHLA), Fetal and Neonatal Institute, 4650 Sunset Blvd., MS#137, Los Angeles, CA, 90027, USA. .,Department of Pediatrics, Keck School of Medicine, University of Southern California (KSOM USC), Los Angeles, CA, USA.
| | - Michelle Tran
- Department of Population and Public Health Sciences, KSOM USC, Los Angeles, CA, USA.,Division of Research on Children, Youth, and Families, The Saban Research Institute, CHLA, Los Angeles, CA, USA
| | - Ashok Panigrahy
- Department of Pediatric Radiology, CHLA, Los Angeles, CA, USA.,University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Ken M Brady
- Lurie Children's Hospital of Chicago, Anesthesiology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jodie K Votava-Smith
- Department of Pediatrics, Keck School of Medicine, University of Southern California (KSOM USC), Los Angeles, CA, USA.,Division of Cardiology, Department of Pediatrics, CHLA and KSOM USC, Los Angeles, CA, USA
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Luis ASJ, Edith TMD, Fabian MHE. Hypoxic gas therapy in neonatology, considerations in practice. Curr Drug Discov Technol 2022; 19:e200522205067. [PMID: 35619296 DOI: 10.2174/1570163819666220520112220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Adequate oxygenation is essential in sick newborns. Each disease determines the target of oxygenation. Nevertheless, hyperoxia and hypoxia are related to adverse outcomes. Most studies about this had been made in preterm infants or term babies with pulmonary pathology. INTRODUCTION Congenital heart diseases may also require careful oxygenation control and management of oxygen supply. PROBLEM Presurgical stabilization of complex heart diseases (CHD) may be difficult, especially after the physiological decrease of pulmonary resistance, which generates pulmonary edema (due to over-circulation) and systemic hypoperfusion. Several strategies have been described to avoid this phenomenon, such as prostaglandin, vasodilators, inotropes, positive airway pressure, and even hypoxic mixture (Inspired fraction of oxygen (FiO2) below 21%). DISCUSSION The last therapy is mainly used in single ventricular physiology heart diseases, such as the hypoplasic left heart syndrome (HLHS) or systemic ductus dependent flow CHD (interruption of the aortic arch and coarctation of the aorta). Alveolar oxygen affects pulmonary vascular resistance modifying lung flow. This modification could help the stabilization during the presurgical period of complex CDH. Many centers use hypoxic therapy to avoid hypotension, metabolic acidosis, coronary-cerebral ischemia, and liver, renal and intestinal injury. Despite the theoretical benefits, there are doubts about how tissue oxygen supply would change during hypoxic gas ventilation. It is worrisome that FiO2 < 21% causes a decrease in brain oxygenation, adding neurological injury to the already established because of CHD and other not modifiable factors. Brain monitoring through near-infrared spectroscopy (NIRS) during hypoxic gas therapy is mandatory. Recent studies have shown that hypoxic gas ventilation therapy in patients with HLHS in the preoperative period decreases the ratio between systemic and pulmonary circulation (Qp/Qs) but does not improve regional oxygenation delivery. The use of hypoxic gas ventilation therapy continues to be controversial. It could be an option in some complex CHD, mainly HLHS.
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