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Disma N, Asai T, Cools E, Cronin A, Engelhardt T, Fiadjoe J, Fuchs A, Garcia-Marcinkiewicz A, Habre W, Heath C, Johansen M, Kaufmann J, Kleine-Brueggeney M, Kovatsis PG, Kranke P, Lusardi AC, Matava C, Peyton J, Riva T, Romero CS, von Ungern-Sternberg B, Veyckemans F, Afshari A. Airway management in neonates and infants: European Society of Anaesthesiology and Intensive Care and British Journal of Anaesthesia joint guidelines. Br J Anaesth 2024; 132:124-144. [PMID: 38065762 DOI: 10.1016/j.bja.2023.08.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 08/30/2023] [Indexed: 01/05/2024] Open
Abstract
Airway management is required during general anaesthesia and is essential for life-threatening conditions such as cardiopulmonary resuscitation. Evidence from recent trials indicates a high incidence of critical events during airway management, especially in neonates or infants. It is important to define the optimal techniques and strategies for airway management in these groups. In this joint European Society of Anaesthesiology and Intensive Care (ESAIC) and British Journal of Anaesthesia (BJA) guideline on airway management in neonates and infants, we present aggregated and evidence-based recommendations to assist clinicians in providing safe and effective medical care. We identified seven main areas of interest for airway management: i) preoperative assessment and preparation; ii) medications; iii) techniques and algorithms; iv) identification and treatment of difficult airways; v) confirmation of tracheal intubation; vi) tracheal extubation, and vii) human factors. Based on these areas, Population, Intervention, Comparison, Outcomes (PICO) questions were derived that guided a structured literature search. GRADE (Grading of Recommendations, Assessment, Development and Evaluation) methodology was used to formulate the recommendations based on those studies included with consideration of their methodological quality (strong '1' or weak '2' recommendation with high 'A', medium 'B' or low 'C' quality of evidence). In summary, we recommend: 1. Use medical history and physical examination to predict difficult airway management (1C). 2. Ensure adequate level of sedation or general anaesthesia during airway management (1B). 3. Administer neuromuscular blocker before tracheal intubation when spontaneous breathing is not necessary (1C). 4. Use a videolaryngoscope with an age-adapted standard blade as first choice for tracheal intubation (1B). 5. Apply apnoeic oxygenation during tracheal intubation in neonates (1B). 6. Consider a supraglottic airway for rescue oxygenation and ventilation when tracheal intubation fails (1B). 7. Limit the number of tracheal intubation attempts (1C). 8. Use a stylet to reinforce and preshape tracheal tubes when hyperangulated videolaryngoscope blades are used and when the larynx is anatomically anterior (1C). 9. Verify intubation is successful with clinical assessment and end-tidal CO2 waveform (1C). 10. Apply high-flow nasal oxygenation, continuous positive airway pressure or nasal intermittent positive pressure ventilation for postextubation respiratory support, when appropriate (1B).
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Affiliation(s)
- Nicola Disma
- Unit for Research in Anaesthesia, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
| | - Takashi Asai
- Department of Anesthesiology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Saitama, Japan
| | - Evelien Cools
- Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | | | - Thomas Engelhardt
- Department of Anaesthesia, Montreal Children's Hospital, McGill University Health Centre, Montréal, QC, Canada
| | - John Fiadjoe
- Department of Anaesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Alexander Fuchs
- Unit for Research in Anaesthesia, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Annery Garcia-Marcinkiewicz
- Department of Anaesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Walid Habre
- Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Chloe Heath
- Department of Anaesthesia and Pain Management, Starship Children's Hospital, Auckland, New Zealand; Perioperative Medicine Team, Perioperative Care Program, Telethon Kids Institute, Perth, WA, Australia
| | - Mathias Johansen
- Department of Anaesthesia, Montreal Children's Hospital, McGill University Health Centre, Montréal, QC, Canada
| | - Jost Kaufmann
- Department for Pediatric Anesthesia, Children's Hospital Cologne, Cologne, Germany; Faculty for Health, University of Witten/Herdecke, Witten, Germany
| | - Maren Kleine-Brueggeney
- Department of Cardiac Anaesthesiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité (DHZC) and Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pete G Kovatsis
- Department of Anaesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Peter Kranke
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Andrea C Lusardi
- Unit for Research in Anaesthesia, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Clyde Matava
- Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, Toronto, ON, Canada
| | - James Peyton
- Department of Anaesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Thomas Riva
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Carolina S Romero
- Department of Anesthesia and Critical Care, Consorcio Hospital General Universitario de Valencia, Methodology Department, Universidad Europea de Valencia, Valencia, Spain
| | - Britta von Ungern-Sternberg
- Perioperative Medicine Team, Perioperative Care Program, Telethon Kids Institute, Perth, WA, Australia; Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, WA, Australia; Division of Emergency Medicine, Anaesthesia and Pain Medicine, Medical School, The University of Western Australia, Perth, WA, Australia
| | | | - Arash Afshari
- Department of Paediatric and Obstetric Anaesthesia, Copenhagen University Hospital, Rigshospitalet & Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark
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Disma N, Asai T, Cools E, Cronin A, Engelhardt T, Fiadjoe J, Fuchs A, Garcia-Marcinkiewicz A, Habre W, Heath C, Johansen M, Kaufmann J, Kleine-Brueggeney M, Kovatsis PG, Kranke P, Lusardi AC, Matava C, Peyton J, Riva T, Romero CS, von Ungern-Sternberg B, Veyckemans F, Afshari A. Airway management in neonates and infants: European Society of Anaesthesiology and Intensive Care and British Journal of Anaesthesia joint guidelines. Eur J Anaesthesiol 2024; 41:3-23. [PMID: 38018248 PMCID: PMC10720842 DOI: 10.1097/eja.0000000000001928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Airway management is required during general anaesthesia and is essential for life-threatening conditions such as cardiopulmonary resuscitation. Evidence from recent trials indicates a high incidence of critical events during airway management, especially in neonates or infants. It is important to define the optimal techniques and strategies for airway management in these groups. In this joint European Society of Anaesthesiology and Intensive Care (ESAIC) and British Journal of Anaesthesia (BJA) guideline on airway management in neonates and infants, we present aggregated and evidence-based recommendations to assist clinicians in providing safe and effective medical care. We identified seven main areas of interest for airway management: i) preoperative assessment and preparation; ii) medications; iii) techniques and algorithms; iv) identification and treatment of difficult airways; v) confirmation of tracheal intubation; vi) tracheal extubation, and vii) human factors. Based on these areas, Population, Intervention, Comparison, Outcomes (PICO) questions were derived that guided a structured literature search. GRADE (Grading of Recommendations, Assessment, Development and Evaluation) methodology was used to formulate the recommendations based on those studies included with consideration of their methodological quality (strong '1' or weak '2' recommendation with high 'A', medium 'B' or low 'C' quality of evidence). In summary, we recommend: 1. Use medical history and physical examination to predict difficult airway management (1С). 2. Ensure adequate level of sedation or general anaesthesia during airway management (1B). 3. Administer neuromuscular blocker before tracheal intubation when spontaneous breathing is not necessary (1С). 4. Use a videolaryngoscope with an age-adapted standard blade as first choice for tracheal intubation (1B). 5. Apply apnoeic oxygenation during tracheal intubation in neonates (1B). 6. Consider a supraglottic airway for rescue oxygenation and ventilation when tracheal intubation fails (1B). 7. Limit the number of tracheal intubation attempts (1C). 8. Use a stylet to reinforce and preshape tracheal tubes when hyperangulated videolaryngoscope blades are used and when the larynx is anatomically anterior (1C). 9. Verify intubation is successful with clinical assessment and end-tidal CO 2 waveform (1C). 10. Apply high-flow nasal oxygenation, continuous positive airway pressure or nasal intermittent positive pressure ventilation for postextubation respiratory support, when appropriate (1B).
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Affiliation(s)
- Nicola Disma
- From the Unit for Research in Anaesthesia, IRCCS Istituto Giannina Gaslini, Genoa, Italy (ND, AF, ACL), Department of Anesthesiology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Saitama, Japan (TA), Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland (EC, WH), Medical Library, Boston Children's Hospital, Boston, MA, USA (AC), Department of Anaesthesia, Montreal Children's Hospital, McGill University Health Centre, Montréal, QC, Canada (TE, MJ), Department of Anaesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA (JF, PGK, JP), Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland (AF, TR), Department of Anaesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA (AG-M), Department of Anaesthesia and Pain Management, Starship Children's Hospital, Auckland, New Zealand (CH), Perioperative Medicine Team, Perioperative Care Program, Telethon Kids Institute, Perth, WA, Australia (CH, BvU-S), Department for Pediatric Anesthesia, Children's Hospital Cologne, Cologne, Germany (JK), Faculty for Health, University of Witten/Herdecke, Witten, Germany (JK), Department of Cardiac Anaesthesiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité (DHZC) and Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany (MK-B), Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, Würzburg, Germany (PK), Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, Toronto, ON, Canada (CM), Department of Anesthesia and Critical Care, Consorcio Hospital General Universitario de Valencia, Methodology Department, Universidad Europea de Valencia, Valencia, Spain (CSR), Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, WA, Australia (BvU-S), Division of Emergency Medicine, Anaesthesia and Pain Medicine, Medical School, The University of Western Australia, Perth, WA, Australia (BvU-S), Faculty of Medicine, UCLouvain, Brussels, Belgium (FV), Department of Paediatric and Obstetric Anaesthesia, Copenhagen University Hospital, Rigshospitalet & Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark (AA)
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Shah D, Tracy M, Hinder M, Badawi N. Quantitative end-tidal carbon dioxide at initiation of resuscitation may help guide the ventilation of infants born at less than 30 weeks gestation. Acta Paediatr 2023; 112:652-658. [PMID: 36541873 DOI: 10.1111/apa.16639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
AIM Estimation of end-tidal carbon dioxide (EtCO2 ) with capnography can guide mask ventilation in infants born at less than 30 weeks of gestation. Chemical-sensitive colorimetric devices to detect CO2 are widely used at resuscitation. We aimed to quantify EtCO2 in the first breaths following initiation of mask ventilation at birth and correlated need for endotracheal intubation. METHODS Infants <30 weeks gestation receiving mask ventilation were randomised into two groups of mask-hold technique (one-person vs. two-person). Data on EtCO2 in the first 30 breaths, time to achieve 5 mmHg, 10 mmHg and 15 mmHg CO2 using a respiratory function monitor was determined. RESULTS Twenty-five infants with a mean gestation of 27.3 (±3 weeks) and mean birth weight 920.4 (±188.3 g) were analysed. The median EtCO2 was 5.6 mmHg in the first 10 breaths, whereas it was 12.6 mmHg for 11-20 breaths and 18 mmHg for 21-30 breaths. There was no significant difference in maximum median EtCO2 for the first 20 breaths, although EtCO2 was significantly lower in infants who were intubated (32.0 vs. 15.0, p = 0.018). CONCLUSION EtCO2 monitoring in infants <30 weeks gestation at birth is feasible and reflective of alveolar ventilation. EtCO2 may help guide ventilation of preterm infants at birth.
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Affiliation(s)
- Dharmesh Shah
- Neonatal Intensive Care Unit, Westmead Hospital, Westmead, New South Wales, Australia
- University of Sydney, Sydney, New South Wales, Australia
| | - Mark Tracy
- Neonatal Intensive Care Unit, Westmead Hospital, Westmead, New South Wales, Australia
- University of Sydney, Sydney, New South Wales, Australia
| | - Murray Hinder
- Neonatal Intensive Care Unit, Westmead Hospital, Westmead, New South Wales, Australia
- University of Sydney, Sydney, New South Wales, Australia
| | - Nadia Badawi
- University of Sydney, Sydney, New South Wales, Australia
- Grace Centre for Newborn Care, Children's Hospital at Westmead, Westmead, New South Wales, Australia
- Cerebral Palsy Research Institute, Cerebral Palsy Alliance, University of Sydney, Sydney, New South Wales, Australia
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Ariff S, Ali KQ, Tessaro MO, Ansari U, Morris S, Soofi SB, Merali HS. Diagnostic accuracy of point-of-care ultrasound compared to standard-of-care methods for endotracheal tube placement in neonates. Pediatr Pulmonol 2022; 57:1744-1750. [PMID: 35501297 DOI: 10.1002/ppul.25955] [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] [Received: 01/20/2022] [Revised: 04/07/2022] [Accepted: 04/25/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Point-of-care ultrasound (POCUS) is a valuable tool to determine endotracheal tube (ETT) placement; however, few studies have compared it with standard confirmation methods. We evaluated the diagnostic accuracy of POCUS and time-to-interpretation for correct identification of tracheal versus esophageal intubations compared to a composite of standard-of-care methods in neonates. METHODS A cross-sectional study was conducted in the Neonatal Intensive Care Unit (NICU) at Aga Khan University Hospital Karachi, Pakistan. All required intubations were performed as per NICU guidelines. The clinical team simultaneously determined the ETT placement using standard-of-care methods (auscultation, colorimetric capnography, and chest X-ray) by POCUS. In addition, the clinical team was blinded to the POCUS images. Timings were recorded for each method by independent study staff. RESULTS A total of 348 neonates were enrolled in the study. More than half (58%) of intubations were in an emergency scenario. POCUS user interpretation showed 100% sensitivity and 94% specificity using an expert as the reference standard. We found a 99.4% agreement (Kappa: 0.96; p < 0.001). Diagnostic accuracy of POCUS compared with at least two standard-of-care methods demonstrated 99.7% sensitivity, 91% specificity, and 98.9% agreement (Kappa:0.93; p < 0.001). The median time required for POCUS interpretation was 3.0 (interquartile range [IQR] 3.0-4.0) seconds for tracheal intubation. The time recorded for auscultation and capnography was 6.0 (IQR 5.0-7.0) and 3.0 (IQR 3.0-4.0), respectively. CONCLUSION POCUS is a rapid and reliable method of identifying ETT placement in neonates. Early and correct identification of airway management is critical to save lives and prevent mortality and morbidity.
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Affiliation(s)
- Shabina Ariff
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Khushboo Q Ali
- Center of Excellence for Women & Child Health, Aga Khan University, Karachi, Pakistan
| | - Mark O Tessaro
- Pediatric Emergency Medicine, Emergency Point-of-Care Ultrasound Program, The Hospital for Sick Children, Toronto, Canada
| | - Uzair Ansari
- Center of Excellence for Women & Child Health, Aga Khan University, Karachi, Pakistan
| | - Shaun Morris
- Division of Infectious Diseases, Department of Pediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Sajid Bashir Soofi
- Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan.,Center of Excellence for Women & Child Health, Aga Khan University, Karachi, Pakistan
| | - Hasan S Merali
- Pediatric Emergency Medicine, McMaster Children's Hospital, Hamilton, Canada
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Maissan I, van Lieshout E, de Jong T, van Vledder M, Houmes RJ, Hartog DD, Stolker RJ. The impact of video laryngoscopy on the first-pass success rate of prehospital endotracheal intubation in The Netherlands: a retrospective observational study. Eur J Trauma Emerg Surg 2022; 48:4205-4213. [PMID: 35362731 PMCID: PMC9532291 DOI: 10.1007/s00068-022-01962-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/15/2022] [Indexed: 12/01/2022]
Abstract
Purpose The first-pass success rate for endotracheal intubation (ETI) depends on provider experience and exposure. We hypothesize that video laryngoscopy (VL) improves first-pass and overall ETI success rates in low and intermediate experienced airway providers and prevents from unrecognized oesophageal intubations in prehospital settings. Methods In this study 3632 patients were included. In all cases, an ambulance nurse, HEMS nurse, or HEMS physician performed prehospital ETI using direct Laryngoscopy (DL) or VL. Results First-pass ETI success rates for ambulance nurses with DL were 45.5% (391/859) and with VL 64.8% (125/193). For HEMS nurses first-pass success rates were 57.6% (34/59) and 77.2% (125/162) respectively. For HEMS physicians these successes were 85.9% (790/920) and 86.9% (1251/1439). The overall success rate for ambulance nurses with DL was 58.4% (502/859) and 77.2% (149/193) with VL. HEMS nurses successes were 72.9% (43/59) and 87.0% (141/162), respectively. HEMS physician successes were 98.7% (908/920) and 99.0% (1425/1439), respectively. The incidence of unrecognized intubations in the oesophagus before HEMS arrival in traumatic circulatory arrest (TCA) was 30.6% with DL and 37.5% with VL. In medical cardiac arrest cases the incidence was 20% with DL and 0% with VL. Conclusion First-pass and overall ETI success rates for ambulance and HEMS nurses are better with VL. The used device does not affect success rates of HEMS physicians. VL resulted in less unrecognized oesophageal intubations in medical cardiac arrests. In TCA cases VL resulted in more oesophageal intubations when performed by ambulance nurses before HEMS arrival.
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Affiliation(s)
- Iscander Maissan
- Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands.
| | - Esther van Lieshout
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Timo de Jong
- Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Mark van Vledder
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Robert Jan Houmes
- Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Dennis den Hartog
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Robert Jan Stolker
- Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
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Sandig J, Bührer C, Czernik C. [Evaluation of the Endotracheal Tube by Ultrasound in Neonates]. Z Geburtshilfe Neonatol 2022; 226:160-166. [PMID: 35114723 DOI: 10.1055/a-1732-7867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The reliable evaluation of a correctly placed endotracheal tube is an essential challenge in neonatology. Point-of-care ultrasound is an emerging method to address this concern with the following advantages: less time-consuming, no exposure to radiation, less staff-intensive, and high tolerability by the patients. This article focuses on the evaluation of the clinical application of point-of-care ultrasound to examine the position of the endotracheal tube with regard to visualization, consistency compared to the chest X-ray, and the level of training to obtain sufficient results. We identified nine studies relevant to these questions. The visualization of the endotracheal tube by using point-of-care ultrasound is highly effective. The assessment of a correctly placed endotracheal tube is comparable to the results of a chest X-ray. The technique is suitable for any examiner with previous ultrasound experience. Future applications such as emergency intubations, implementation in the standard care of extremely low birth weight preterm babies, and use in low-resource settings could be promising. This article offers a practical guideline to promote the level of awareness and the clinical application.
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Affiliation(s)
- Jan Sandig
- Klinik für Neonatologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - Christoph Bührer
- Klinik für Neonatologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - Christoph Czernik
- Klinik für Neonatologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
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Williams E, Dassios T, Greenough A. Carbon dioxide monitoring in the newborn infant. Pediatr Pulmonol 2021; 56:3148-3156. [PMID: 34365738 DOI: 10.1002/ppul.25605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 11/06/2022]
Abstract
Carbon dioxide (CO2 ) monitoring is vital during mechanical ventilation of newborn infants, as morbidity increases when CO2 levels are inappropriate. Our aim was to review the uses and limitations of such noninvasive monitoring methods. Colorimetry is primarily utilized during resuscitation to determine whether successful intubation has occurred. False negative and positive results can however lead to delays in detecting tracheal versus esophageal intubation. Transcutaneous carbon dioxide sensors have limited use during resuscitation, but can be utilized to provide continuous trend data during on-going ventilation. End-tidal capnography can provide clinicians with quantitative end-tidal CO2 (EtCO2 ) values and a continuous real-time capnogram waveform trace. These devices are becoming more widely accepted for use in the neonatal population as the new devices are lightweight with minimal additional dead space. Nevertheless, they have been reported to have variable accuracy when compared to arterial CO2 measurements, however, divergence of results may be related to disease severity rather than technological limitations. During resuscitation EtCO2 can be detected by capnography more rapidly than by colorimetry. Furthermore, capnography can be currently utilized in neonatal research settings to determine the physiological dead space and ventilation inhomogeneity, and thus has potential to be beneficial to clinical care. In conclusion, novel modes of noninvasive carbon dioxide monitoring can be safely and reliably utilized in newborn infants during mechanical ventilation. Future randomized trials should aim to address which device provides the most optimal form of monitoring in different clinical contexts.
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Affiliation(s)
- Emma Williams
- Department of Woman and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Theodore Dassios
- Department of Woman and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.,Neonatal Intensive Care Centre, King's College Hospital NHS Foundation Trust, London, UK
| | - Anne Greenough
- Department of Woman and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.,Asthma UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK.,National Institute for Health Research (NIHR) Biomedical Research Centre based at Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
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8
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Law JA, Duggan LV, Asselin M, Baker P, Crosby E, Downey A, Hung OR, Jones PM, Lemay F, Noppens R, Parotto M, Preston R, Sowers N, Sparrow K, Turkstra TP, Wong DT, Kovacs G. Canadian Airway Focus Group updated consensus-based recommendations for management of the difficult airway: part 1. Difficult airway management encountered in an unconscious patient. Can J Anaesth 2021; 68:1373-1404. [PMID: 34143394 PMCID: PMC8212585 DOI: 10.1007/s12630-021-02007-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/11/2021] [Accepted: 03/14/2021] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Since the last Canadian Airway Focus Group (CAFG) guidelines were published in 2013, the literature on airway management has expanded substantially. The CAFG therefore re-convened to examine this literature and update practice recommendations. This first of two articles addresses difficulty encountered with airway management in an unconscious patient. SOURCE Canadian Airway Focus Group members, including anesthesia, emergency medicine, and critical care physicians, were assigned topics to search. Searches were run in the Medline, EMBASE, Cochrane Central Register of Controlled Trials, and CINAHL databases. Results were presented to the group and discussed during video conferences every two weeks from April 2018 to July 2020. These CAFG recommendations are based on the best available published evidence. Where high-quality evidence was lacking, statements are based on group consensus. FINDINGS AND KEY RECOMMENDATIONS Most studies comparing video laryngoscopy (VL) with direct laryngoscopy indicate a higher first attempt and overall success rate with VL, and lower complication rates. Thus, resources allowing, the CAFG now recommends use of VL with appropriately selected blade type to facilitate all tracheal intubations. If a first attempt at tracheal intubation or supraglottic airway (SGA) placement is unsuccessful, further attempts can be made as long as patient ventilation and oxygenation is maintained. Nevertheless, total attempts should be limited (to three or fewer) before declaring failure and pausing to consider "exit strategy" options. For failed intubation, exit strategy options in the still-oxygenated patient include awakening (if feasible), temporizing with an SGA, a single further attempt at tracheal intubation using a different technique, or front-of-neck airway access (FONA). Failure of tracheal intubation, face-mask ventilation, and SGA ventilation together with current or imminent hypoxemia defines a "cannot ventilate, cannot oxygenate" emergency. Neuromuscular blockade should be confirmed or established, and a single final attempt at face-mask ventilation, SGA placement, or tracheal intubation with hyper-angulated blade VL can be made, if it had not already been attempted. If ventilation remains impossible, emergency FONA should occur without delay using a scalpel-bougie-tube technique (in the adult patient). The CAFG recommends all institutions designate an individual as "airway lead" to help institute difficult airway protocols, ensure adequate training and equipment, and help with airway-related quality reviews.
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Affiliation(s)
- J. Adam Law
- grid.55602.340000 0004 1936 8200Department of Anesthesia, Pain Management and Perioperative Medicine, QEII Health Sciences Centre, Dalhousie University, Halifax Infirmary Site, 1796 Summer Street, Room 5452, Halifax, NS B3H 3A7 Canada
| | - Laura V. Duggan
- grid.28046.380000 0001 2182 2255Department of Anesthesiology and Pain Medicine, The Ottawa Hospital Civic Campus, University of Ottawa, Room B307, 1053 Carling Avenue, Mail Stop 249, Ottawa, ON K1Y 4E9 Canada
| | - Mathieu Asselin
- grid.23856.3a0000 0004 1936 8390Département d’anesthésiologie et de soins intensifs, Université Laval, 2325 rue de l’Université, Québec, QC G1V 0A6 Canada ,grid.411081.d0000 0000 9471 1794Département d’anesthésie du CHU de Québec, Hôpital Enfant-Jésus, 1401 18e rue, Québec, QC G1J 1Z4 Canada
| | - Paul Baker
- grid.9654.e0000 0004 0372 3343Department of Anaesthesiology, Faculty of Medical and Health Science, University of Auckland, Private Bag 92019, Auckland, 1142 New Zealand
| | - Edward Crosby
- grid.28046.380000 0001 2182 2255Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, University of Ottawa, Suite CCW1401, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada
| | - Andrew Downey
- grid.1055.10000000403978434Department of Anaesthesia, Perioperative and Pain Medicine, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Orlando R. Hung
- grid.55602.340000 0004 1936 8200Department of Anesthesia, Pain Management and Perioperative Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
| | - Philip M. Jones
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Rd., London, ON N6A 5A5 Canada
| | - François Lemay
- grid.417661.30000 0001 2190 0479Département d’anesthésiologie, CHU de Québec – Université Laval, Hôtel-Dieu de Québec, 11, Côte du Palais, Québec, QC G1R 2J6 Canada
| | - Rudiger Noppens
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Road, London, ON N6A 5A5 Canada
| | - Matteo Parotto
- grid.17063.330000 0001 2157 2938Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto General Hospital, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Interdepartmental Division of Critical Care Medicine, University of Toronto, EN 442 200 Elizabeth St, Toronto, ON M5G 2C4 Canada
| | - Roanne Preston
- grid.413264.60000 0000 9878 6515Department of Anesthesia, BC Women’s Hospital, 4500 Oak Street, Vancouver, BC V6H 3N1 Canada
| | - Nick Sowers
- grid.55602.340000 0004 1936 8200Department of Emergency Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
| | - Kathryn Sparrow
- grid.25055.370000 0000 9130 6822Discipline of Anesthesia, St. Clare’s Mercy Hospital, Memorial University of Newfoundland, 300 Prince Phillip Drive, St. John’s, NL A1B V6 Canada
| | - Timothy P. Turkstra
- grid.39381.300000 0004 1936 8884Department of Anesthesia & Perioperative Medicine, Schulich School of Medicine & Dentistry, University of Western Ontario, LHSC- University Hospital, 339 Windermere Road, London, ON N6A 5A5 Canada
| | - David T. Wong
- grid.17063.330000 0001 2157 2938Department of Anesthesia, Toronto Western Hospital, University Health Network, University of Toronto, 399, Bathurst St, Toronto, ON M5T2S8 Canada
| | - George Kovacs
- grid.55602.340000 0004 1936 8200Department of Emergency Medicine, QEII Health Sciences Centre, Dalhousie University, 1796 Summer Street, Halifax, NS B3H 3A7 Canada
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Sankaran D, Zeinali L, Iqbal S, Chandrasekharan P, Lakshminrusimha S. Non-invasive carbon dioxide monitoring in neonates: methods, benefits, and pitfalls. J Perinatol 2021; 41:2580-2589. [PMID: 34148068 PMCID: PMC8214374 DOI: 10.1038/s41372-021-01134-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/25/2021] [Accepted: 06/09/2021] [Indexed: 01/21/2023]
Abstract
Wide fluctuations in partial pressure of carbon dioxide (PaCO2) can potentially be associated with neurological and lung injury in neonates. Blood gas measurement is the gold standard for assessing gas exchange but is intermittent, invasive, and contributes to iatrogenic blood loss. Non-invasive carbon dioxide (CO2) monitoring has become ubiquitous in anesthesia and critical care and is being increasingly used in neonates. Two common methods of non-invasive CO2 monitoring are end-tidal and transcutaneous. A colorimetric CO2 detector (a modified end-tidal CO2 detector) is recommended by the International Liaison Committee on Resuscitation (ILCOR) and the American Academy of Pediatrics to confirm endotracheal tube placement. Continuous CO2 monitoring is helpful in trending PaCO2 in critically ill neonates on respiratory support and can potentially lead to early detection and minimization of fluctuations in PaCO2. This review includes a description of the various types of CO2 monitoring and their applications, benefits, and limitations in neonates.
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Affiliation(s)
- Deepika Sankaran
- Division of Neonatology, Department of Pediatrics, University of California Davis, Sacramento, CA, USA.
| | - Lida Zeinali
- grid.27860.3b0000 0004 1936 9684Division of Neonatology, Department of Pediatrics, University of California Davis, Sacramento, CA USA
| | - Sameeia Iqbal
- grid.414164.20000 0004 0442 4003Division of Neonatology, Children’s Hospital of Orange County, Orange, CA USA
| | - Praveen Chandrasekharan
- grid.273335.30000 0004 1936 9887Division of Neonatology, Department of Pediatrics, University at Buffalo, Buffalo, NY USA
| | - Satyan Lakshminrusimha
- grid.27860.3b0000 0004 1936 9684Division of Neonatology, Department of Pediatrics, University of California Davis, Sacramento, CA USA
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10
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Merali HS, Tessaro MO, Ali KQ, Morris SK, Soofi SB, Ariff S. A novel training simulator for portable ultrasound identification of incorrect newborn endotracheal tube placement - observational diagnostic accuracy study protocol. BMC Pediatr 2019; 19:434. [PMID: 31722685 PMCID: PMC6852924 DOI: 10.1186/s12887-019-1717-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background Endotracheal tube (ETT) placement is a critical procedure for newborns that are unable to breathe. Inadvertent esophageal intubation can lead to oxygen deprivation and consequent permanent neurological impairment. Current standard-of-care methods to confirm ETT placement in neonates (auscultation, colorimetric capnography, and chest x-ray) are time consuming or unreliable, especially in the stressful resuscitation environment. Point-of-care ultrasound (POCUS) of the neck has recently emerged as a powerful tool for detecting esophageal ETTs. It is accurate and fast, and is also easy to learn and perform, especially on children. Methods This will be an observational diagnostic accuracy study consisting of two phases and conducted at the Aga Khan University Hospital in Karachi, Pakistan. In phase 1, neonatal health care providers that currently perform standard-of-care methods for ETT localization, regardless of experience in portable ultrasound, will undergo a two-hour training session. During this session, providers will learn to detect tracheal vs. esophageal ETTs using POCUS. The session will consist of a didactic component, hands-on training with a novel intubation ultrasound simulator, and practice with stable, ventilated newborns. At the end of the session, the providers will undergo an objective structured assessment of technical skills, as well as an evaluation of their ability to differentiate between tracheal and esophageal endotracheal tubes. In phase 2, newborns requiring intubation will be assessed for ETT location via POCUS, at the same time as standard-of-care methods. The initial 2 months of phase 2 will include a quality assurance component to ensure the POCUS accuracy of trained providers. The primary outcome of the study is to determine the accuracy of neck POCUS for ETT location when performed by neonatal providers with focused POCUS training, and the secondary outcome is to determine whether neck POCUS is faster than standard-of-care methods. Discussion This study represents the first large investigation of the benefits of POCUS for ETT confirmation in the sickest newborns undergoing intubations for respiratory support. Trial registration ClinicalTrials.gov Identifier: NCT03533218. Registered May 2018.
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Affiliation(s)
- Hasan S Merali
- Division of Pediatric Emergency Medicine, McMaster Children's Hospital, McMaster University, 1280 Main Street West, HSC-2R104, Hamilton, ON, L8S 4K1, Canada
| | - Mark O Tessaro
- Division of Pediatric Emergency Medicine, Emergency Point-of-Care Ultrasound Program, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Khushboo Q Ali
- Department of Paediatrics & Child Health, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan
| | - Shaun K Morris
- Division of Infectious Diseases and Centre for Global Child Health, Hospital for Sick Children, Department of Pediatrics Faculty of Medicine, 555 University Avenue, Toronto, ON, M5G1X8, Canada
| | - Sajid B Soofi
- Department of Paediatrics & Child Health, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan
| | - Shabina Ariff
- Department of Paediatrics & Child Health, Aga Khan University, Stadium Road, Karachi, 74800, Pakistan.
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11
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Ergonomic Challenges Inherent in Neonatal Resuscitation. CHILDREN-BASEL 2019; 6:children6060074. [PMID: 31163596 PMCID: PMC6617094 DOI: 10.3390/children6060074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 11/17/2022]
Abstract
Neonatal resuscitation demands that healthcare professionals perform cognitive and technical tasks while working under time pressure as a team in order to provide efficient and effective care. Neonatal resuscitation teams simultaneously process and act upon multiple data streams, perform ergonomically challenging technical procedures, and coordinate their actions within a small physical space. An understanding and application of human factors and ergonomics science broadens the areas of need in resuscitation research, and will lead to enhanced technologies, systems, and work environments that support human limitations and maximize human performance during neonatal resuscitation.
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12
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Zaytseva A, Kurepa D, Ahn S, Weinberger B. Determination of optimal endotracheal tube tip depth from the gum in neonates by X-ray and ultrasound. J Matern Fetal Neonatal Med 2019; 33:2075-2080. [PMID: 30332898 DOI: 10.1080/14767058.2018.1538350] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Background/objective: Proper placement of endotracheal tube (ETT) in the midtrachea is essential. Initial depth of placement of oral ETT from the lips is commonly estimated based on weight ("7-8-9 rule"), gestational age, or nasal-tragus distance. However, these measurements can be altered by superficial factors and the mobility of the lips relative to the airway, so the upper alveolar ridge (gum) may provide a superior landmark. Also, confirmation of ETT tip position by point of care ultrasound (POC-US) is noninvasive and may enable localization of the ETT tip in real time. The objective of this study is to define optimal initial ETT depth from the gum in infants relative to weight, and to compare the efficacy of POC-US with standard chest X-ray (CXR) for confirming ETT tip position.Methods: Neonates requiring oral intubation were enrolled. At the time of CXR that were obtained for clinical indications, the position of the ETT at both the lip and gum were recorded. "Optimal" ETT placement in midtrachea (from lip and gum) was calculated based on the observed measurements and the distance of the ETT tip from the carina on CXR. Linear regression was used to model ideal placement of ETT, as a function of weight. POC-US was performed using a 10 MHz cardiac probe and high parasternal view. Distance from the ETT bevel to the superior aspect of the right pulmonary artery, which is at the level of carina, was measured using electronic calipers.Results: Infants were recruited at a median age of 3 days (n = 75), weight 1300 g, and corrected gestational age 31.6 ± 5.8 weeks. The regression equation for optimal placement from the gum (in cm) was 5.21 + 1.03 × weight (kg). Using estimates of 5 or 5.5 cm + weight (kg) to the gum yielded accuracy similar or superior to the 7-8-9 rule to the lip. Most of the variability in ideal placement of ETT tip from the gum was determined by weight (R2 = 0.83). The difference between optimal placement using lip and gum was 0.51 ± 0.24 cm. ETT location by POC-US (n = 40) was in substantial agreement with CXR (intraclass correlation coefficient 0.95, 95% CI: 0.92, 0.98).Conclusions: Marking oral ETT placement to the gum is feasible, with optimal depth of about 5.2 cm + weight (kg), across all weight categories. POC-US can be used for rapid confirmation of continued ideal ETT tip location, with accuracy similar to CXR. Further studies will be needed to determine whether marking ETT depth to the gum or using POC-US achieves the goal of decreased complications of ETT misplacement or displacement.
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Affiliation(s)
- Alla Zaytseva
- Division of Neonatal-Perinatal Medicine, Cohen Children's Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - Dalibor Kurepa
- Division of Neonatal-Perinatal Medicine, Cohen Children's Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
| | - Seungjun Ahn
- Biostatistics Unit, Feinstein Institute for Medical Research, Great Neck, NY, USA
| | - Barry Weinberger
- Division of Neonatal-Perinatal Medicine, Cohen Children's Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, USA
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13
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Hunt KA, Yamada Y, Murthy V, Srihari Bhat P, Campbell M, Fox GF, Milner AD, Greenough A. Detection of exhaled carbon dioxide following intubation during resuscitation at delivery. Arch Dis Child Fetal Neonatal Ed 2019; 104:F187-F191. [PMID: 29550769 DOI: 10.1136/archdischild-2017-313982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 11/04/2022]
Abstract
OBJECTIVES End tidal carbon dioxide (ETCO2) monitoring can facilitate identification of successful intubation. The aims of this study were to determine the time to detect ETCO2 following intubation during resuscitation of infants born prematurely and whether it differed according to maturity at birth or the Apgar scores (as a measure of the infant's condition after birth). DESIGN Analysis of recordings of respiratory function monitoring. SETTING Two tertiary perinatal centres. PATIENTS Sixty-four infants, with median gestational age of 27 (range 23-34)weeks. INTERVENTIONS Respiratory function monitoring during resuscitation in the delivery suite. MAIN OUTCOME MEASURES The time following intubation for ETCO2 levels to be initially detected and to reach 4 mm Hg and 15 mm Hg. RESULTS The median time for initial detection of ETCO2 following intubation was 3.7 (range 0-44) s, which was significantly shorter than the median time for ETCO2 to reach 4 mm Hg (5.3 (range 0-727) s) and to reach 15 mm Hg (8.1 (range 0-827) s) (both P<0.001). There were significant correlations between the time for ETCO2 to reach 4 mm Hg (r=-0.44, P>0.001) and 15 mm Hg (r=-0.48, P<0.001) and gestational age but not with the Apgar scores. CONCLUSIONS The time for ETCO2 to be detected following intubation in the delivery suite is variable emphasising the importance of using clinical indicators to assess correct endotracheal tube position in addition to ETCO2 monitoring. Capnography is likely to detect ETCO2 faster than colorimetric devices.
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Affiliation(s)
- Katie A Hunt
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Yosuke Yamada
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Vadivelam Murthy
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Prashanth Srihari Bhat
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Morag Campbell
- Neonatal Unit, Southern General and Yorkhill Hospitals, Scotland, UK
| | - Grenville F Fox
- Evelina Children's Hospital Neonatal Unit, Guy's and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Anthony D Milner
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Anne Greenough
- MRC & Asthma UK Centre in Allergic Mechanisms in Asthma, King's College London, London, UK.,Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.,National Institute for Health Research (NIHR) Biomedical Research Centre, Guy's and St Thomas' NHS Foundation Trust, King's College London, London, UK
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14
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Schmölzer GM, Roehr CCC. WITHDRAWN: Techniques to ascertain correct endotracheal tube placement in neonates. Cochrane Database Syst Rev 2018; 7:CD010221. [PMID: 29975802 PMCID: PMC6513417 DOI: 10.1002/14651858.cd010221.pub3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The success rate of correct endotracheal tube (ETT) placement for junior medical staff is less than 50% and accidental oesophageal intubation is common. Rapid confirmation of correct tube placement is important because tube malposition is associated with serious adverse outcomes including hypoxaemia, death, pneumothorax and right upper lobe collapse.ETT position can be confirmed using chest radiography, but this is often delayed; hence, a number of rapid point-of-care methods to confirm correct tube placement have been developed. Current neonatal resuscitation guidelines advise that correct ETT placement should be confirmed by the observation of clinical signs and the detection of exhaled carbon dioxide (CO2). Even though these devices are frequently used in the delivery room to assess tube placement, they can display false-negative results. Recently, newer techniques to assess correct tube placement have emerged (e.g. respiratory function monitor), which have been claimed to be superior in the assessment of tube placement. OBJECTIVES To assess various techniques for the identification of correct ETT placement after oral or nasal intubation in newborn infants in either the delivery room or neonatal intensive care unit compared with chest radiography. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL,The Cochrane Library 2012, Issue 4), MEDLINE (January 1996 to June 2014), EMBASE (January 1980 to Juen 2014) and CINAHL (January 1982 to June 2014). We searched clinical trials registers and the abstracts of the Society for Pediatric Research and the European Society for Pediatric Research from 2004 to 2014. We did not apply any language restrictions. SELECTION CRITERIA We planned to include randomised and quasi-randomised controlled trials and cluster trials that compared chest radiography with clinical signs, respiratory function monitors, exhaled CO2 detectors or ultrasound for the assessment of correct ETT placement either in the delivery room or the neonatal intensive care unit. DATA COLLECTION AND ANALYSIS Two review authors independently evaluated the search results against the selection criteria. We did not perform data extraction and 'Risk of bias' assessments because we identified no studies that met our inclusion criteria. MAIN RESULTS We did not identify any studies meeting the criteria for inclusion in this review. AUTHORS' CONCLUSIONS There is insufficient evidence to determine the most effective technique for the assessment of correct ETT placement either in the delivery room or the neonatal intensive care unit. Randomised clinical trials comparing either of these techniques with chest radiography are warranted.
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Affiliation(s)
- Georg M Schmölzer
- University of AlbertaDepartment of Pediatrics, Division of NeonatologyRoyal Alexandra Hospital, Rm. 418 CSC, 10240 Kingsway AveEdmontonABCanadaT5H 3V9
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15
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Takeuchi S, Arai J. Ultrasonographic confirmation of tracheal intubation for congenital chylothorax. Pediatr Int 2018; 60:308-310. [PMID: 29480539 DOI: 10.1111/ped.13493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 10/27/2017] [Accepted: 12/15/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Syusuke Takeuchi
- Department of Neonatology, Ibaraki Children's Hospital, Mito, Japan
| | - Junichi Arai
- Department of Neonatology, Ibaraki Children's Hospital, Mito, Japan
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16
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Assessment of endotracheal tube placement in newborn infants: a randomized controlled trial. J Perinatol 2016; 36:370-5. [PMID: 26765556 DOI: 10.1038/jp.2015.208] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 10/15/2015] [Accepted: 11/23/2015] [Indexed: 11/08/2022]
Abstract
OBJECTIVE International resuscitation guidelines recommend clinical assessment and exhaled CO2 to confirm tube placement immediately after intubation. However, exhaled CO2 devices can display false negative results. In comparison, any respiratory function monitor can be used to measure and display gas flow in and out of an endotracheal tube. However, neither method has been examined in detail. We hypothesized that a flow sensor would improve the assessment of tracheal vs esophageal tube placement in neonates with a higher success rate and a shorter time to tube placement confirmation when compared with the use of a quantitative end-tidal CO2 (ETCO2) detector. STUDY DESIGN Between December 2013 and September 2014, preterm and term infants requiring endotracheal intubation were eligible for inclusion and randomly allocated to either ETCO2 ('ETCO2 group') or flow sensor ('flow sensor group'). All infants were analyzed according to their group at randomization (that is, analysis was by intention-to-treat). RESULT During the study period, a total of 110 infants (n=55 for each group) were randomized. Successful endotracheal tube placements were correctly identified in 100% of cases by the flow sensor compared with 72% of cases with the ETCO2 detector within 10 inflations (P<0.05). The median (interquartile range) number of inflations needed to identify successful tube placement was significantly lower in the flow sensor group with 2 (1 to 3) inflations vs 8 (6 to 10) inflations with the ETCO2 detector (P<0.001). CONCLUSION A flow sensor would improve the assessment of successful endotracheal tube placement with a higher success rate and a shorter time compared with an ETCO2 detector.
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17
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Finn D, Boylan GB, Ryan CA, Dempsey EM. Enhanced Monitoring of the Preterm Infant during Stabilization in the Delivery Room. Front Pediatr 2016; 4:30. [PMID: 27066463 PMCID: PMC4814766 DOI: 10.3389/fped.2016.00030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 03/18/2016] [Indexed: 11/13/2022] Open
Abstract
Monitoring of preterm infants in the delivery room (DR) remains limited. Current guidelines suggest that pulse oximetry should be available for all preterm infant deliveries, and that if intubated a colorimetric carbon dioxide detector should provide verification of correct endotracheal tube placement. These two methods of assessment represent the extent of objective monitoring of the newborn commonly performed in the DR. Monitoring non-invasive ventilation effectiveness (either by capnography or respiratory function monitoring) and cerebral oxygenation (near-infrared spectroscopy) is becoming more common within research settings. In this article, we will review the different modalities available for cardiorespiratory and neuromonitoring in the DR and assess the current evidence base on their feasibility, strengths, and limitations during preterm stabilization.
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Affiliation(s)
- Daragh Finn
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Cork, Ireland
| | - Geraldine B Boylan
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Cork, Ireland
| | - C Anthony Ryan
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Cork, Ireland
| | - Eugene M Dempsey
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Cork, Ireland
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18
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Levert CR, Ganapathy AV, Terry RL, Goforth SE, Kosh M, Nathan J, Tolpin DA, Razavi M. Electromyography as a new means of navigation during endotracheal intubation. J Med Eng Technol 2015; 39:508-13. [DOI: 10.3109/03091902.2015.1105315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Mian Q, Cheung PY, O'Reilly M, Pichler G, van Os S, Kushniruk K, Aziz K, Schmölzer GM. Spontaneously Breathing Preterm Infants Change in Tidal Volume to Improve Lung Aeration Immediately after Birth. J Pediatr 2015; 167:274-8.e1. [PMID: 25998060 DOI: 10.1016/j.jpeds.2015.04.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 03/26/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To examine the temporal course of lung aeration at birth in preterm infants <33 weeks gestation. STUDY DESIGN The research team attended deliveries of preterm infants <33 weeks gestation at the Royal Alexandra Hospital. Infants who received only continuous positive airway pressure were eligible for inclusion. A combined carbon dioxide (CO2) and flow-sensor was placed between the mask and the ventilation device. To analyze lung aeration patterns during spontaneous breathing, tidal volume (VT), and exhaled CO2 (ECO2) were recorded for the first 100 breaths. RESULTS Thirty preterm infants were included with a total of 1512 breaths with mask leak <30%. Mean (SD) gestational age and birth weight was 30 (1) weeks and 1478 (430) g. Initial VT and ECO2 for the first 30 breaths was 5-6 mL/kg and 15-22 mm Hg, respectively. VT and ECO2 increased over the next 20 breaths to 7-8 mL/kg and 25-32 mm Hg, respectively. For the remaining observation period VT decreased to 4-6 mL/kg and ECO2 continued to increase to 35-37 mm Hg. CONCLUSIONS Preterm infants begin taking deeper breaths approximately 30 breaths after initiating spontaneous breathing to inflate their lungs. Concurrent CO2 removal rises as alveoli are recruited. Lung aeration occurs in 2 phases: initially, large volume breaths with poor alveolar aeration followed by smaller breaths with elimination of CO2 as a consequence of adequate aeration.
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Affiliation(s)
- Qaasim Mian
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Po-Yin Cheung
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Megan O'Reilly
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Gerhard Pichler
- Department of Pediatrics, Medical University Graz, Graz, Austria
| | - Sylvia van Os
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada
| | - Karin Kushniruk
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada
| | - Khalid Aziz
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Georg M Schmölzer
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Canada
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Schmölzer GM, Hooper SB, Wong C, Kamlin COF, Davis PG. Exhaled carbon dioxide in healthy term infants immediately after birth. J Pediatr 2015; 166:844-9.e1-3. [PMID: 25596099 DOI: 10.1016/j.jpeds.2014.12.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/13/2014] [Accepted: 12/03/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To measure exhaled carbon dioxide (ECO2) in term infants immediately after birth. STUDY DESIGN Infants >37 weeks gestation born at The Royal Women's Hospital, Melbourne, Australia were eligible. A combined flow sensor and mainstream carbon dioxide (CO2) analyzer was placed in series proximal to a facemask to measure ECO2 and tidal volumes in the first 120 seconds after birth. RESULTS Term infants (n = 20) with a mean (SD) birth weight of 2976 (697) g and gestational age of 38 (2) weeks were included. Infants took a median (range) 3 (1-8) breaths before ECO2 was detected. The median (range) of maximum ECO2 was 51 (40-73) mm Hg at 70 (21-106) seconds after birth. Within the first 10 breaths, CO2 increased from 0-27 (22-34) mm Hg. The median (IQR) tidal volume during the breaths without CO2 was 1.2 (0.8-3.1) mL/kg compared with 7.3 (3.2-10.9) mL/kg during the first 10 breaths where CO2 was exhaled. CONCLUSIONS The first breaths for an infant after birth did not contain ECO2. With aeration of the distal gas exchange regions, tidal volume and ECO2 significantly increased. ECO2 can be used to monitor lung aeration immediately after birth.
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Affiliation(s)
- Georg M Schmölzer
- Center for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, Canada; Neonatal Services, The Royal Women's Hospital, Melbourne, Australia; The Ritchie Center, Monash University, Melbourne, Australia; Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada; Critical Care Stream, Murdoch Children Research Institute, Melbourne, Australia
| | | | - Connie Wong
- Neonatal Services, The Royal Women's Hospital, Melbourne, Australia
| | - C Omar F Kamlin
- Neonatal Services, The Royal Women's Hospital, Melbourne, Australia; Critical Care Stream, Murdoch Children Research Institute, Melbourne, Australia; Department of Obstetrics and Gynecology, The University of Melbourne, Melbourne, Australia
| | - Peter G Davis
- Neonatal Services, The Royal Women's Hospital, Melbourne, Australia; Critical Care Stream, Murdoch Children Research Institute, Melbourne, Australia; Department of Obstetrics and Gynecology, The University of Melbourne, Melbourne, Australia
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Blank D, Rich W, Leone T, Garey D, Finer N. Pedi-cap color change precedes a significant increase in heart rate during neonatal resuscitation. Resuscitation 2014; 85:1568-72. [PMID: 25236763 DOI: 10.1016/j.resuscitation.2014.08.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 08/19/2014] [Accepted: 08/21/2014] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Heart rate is the most important indicator of infant well-being during neonatal resuscitation. The Nellcor Pedi-Cap turns gold when exposed to exhaled gas with CO₂>15 mmHg. The aim of this study was to determine if Pedi-Cap gold color change during neonatal resuscitation precedes an increase in heart rate in babies with bradycardia receiving mask ventilation. METHODS This was a single-center retrospective review of video recordings and physiologic data of newborns with bradycardia receiving mask positive pressure ventilation during neonatal resuscitation. Subjects were included if the baby's HR<100 BPM within the first 90 s of resuscitation. The primary outcome was the change in HR prior to Pedi-Cap gold color change compared to the HR after Pedi-Cap gold color change. RESULTS Forty-one newborns during the study period had HR<100 BPM and received mask positive pressure ventilation with a Pedi-Cap. The median heart rate 10s prior to Pedi-Cap gold color change was 75 BPM (IQR 62-85) and increased to 136 BPM (IQR 113-158) 30 s after gold color change (p<0.001). SpO₂ increased from 45 ± 17% prior to Pedi-Cap gold color change to 52 ± 17% 30s after gold color change (p=0.001). CONCLUSIONS Colorimetric CO₂ detection during mask positive pressure ventilation in neonatal resuscitation precedes a significant increase in heart rate and SpO₂. The Pedi-Cap can be easily applied during resuscitation, requires no electricity, provides immediate feedback and may be a useful, simple tool early in resuscitation and may be especially useful in resource limited settings.
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Affiliation(s)
- Doug Blank
- Division of Neonatology, UCSD Medical Center, University of California, San Diego, CA, USA.
| | - Wade Rich
- Division of Neonatology, UCSD Medical Center, University of California, San Diego, CA, USA
| | - Tina Leone
- Division of Neonatology, Columbia University, New York, NY, USA
| | - Donna Garey
- Division of Neonatology, UCSD Medical Center, University of California, San Diego, CA, USA
| | - Neil Finer
- Division of Neonatology, UCSD Medical Center, University of California, San Diego, CA, USA
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Abstract
BACKGROUND The success rate of correct endotracheal tube (ETT) placement for junior medical staff is less than 50% and accidental oesophageal intubation is common. Rapid confirmation of correct tube placement is important because tube malposition is associated with serious adverse outcomes including hypoxaemia, death, pneumothorax and right upper lobe collapse.ETT position can be confirmed using chest radiography, but this is often delayed; hence, a number of rapid point-of-care methods to confirm correct tube placement have been developed. Current neonatal resuscitation guidelines advise that correct ETT placement should be confirmed by the observation of clinical signs and the detection of exhaled carbon dioxide (CO2). Even though these devices are frequently used in the delivery room to assess tube placement, they can display false-negative results. Recently, newer techniques to assess correct tube placement have emerged (e.g. respiratory function monitor), which have been claimed to be superior in the assessment of tube placement. OBJECTIVES To assess various techniques for the identification of correct ETT placement after oral or nasal intubation in newborn infants in either the delivery room or neonatal intensive care unit compared with chest radiography. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL,The Cochrane Library 2012, Issue 4), MEDLINE (January 1996 to June 2014), EMBASE (January 1980 to Juen 2014) and CINAHL (January 1982 to June 2014). We searched clinical trials registers and the abstracts of the Society for Pediatric Research and the European Society for Pediatric Research from 2004 to 2014. We did not apply any language restrictions. SELECTION CRITERIA We planned to include randomised and quasi-randomised controlled trials and cluster trials that compared chest radiography with clinical signs, respiratory function monitors, exhaled CO2 detectors or ultrasound for the assessment of correct ETT placement either in the delivery room or the neonatal intensive care unit. DATA COLLECTION AND ANALYSIS Two review authors independently evaluated the search results against the selection criteria. We did not perform data extraction and 'Risk of bias' assessments because we identified no studies that met our inclusion criteria. MAIN RESULTS We did not identify any studies meeting the criteria for inclusion in this review. AUTHORS' CONCLUSIONS There is insufficient evidence to determine the most effective technique for the assessment of correct ETT placement either in the delivery room or the neonatal intensive care unit. Randomised clinical trials comparing either of these techniques with chest radiography are warranted.
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Affiliation(s)
- Georg M Schmölzer
- Department of Pediatrics, Division of Neonatology, University of Alberta, Royal Alexandra Hospital, Rm. 418 CSC, 10240 Kingsway Ave, Edmonton, AB, Canada, T5H 3V9
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van Os S, Cheung PY, Pichler G, Aziz K, O'Reilly M, Schmölzer GM. Exhaled carbon dioxide can be used to guide respiratory support in the delivery room. Acta Paediatr 2014; 103:796-806. [PMID: 24698203 DOI: 10.1111/apa.12650] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/04/2014] [Accepted: 04/01/2014] [Indexed: 11/30/2022]
Abstract
UNLABELLED Respiratory support in the delivery room remains challenging. Assessing chest rise is imprecise, and mask leak and airway obstruction are common problems. We describe recordings of respiratory signals during delivery room resuscitations and discuss guidance on positive-pressure ventilation using respiratory parameters and exhaled carbon dioxide (ECO2 ) during neonatal resuscitations. CONCLUSION Observing tidal volume and ECO2 waveforms adds objectivity to clinical assessments. ECO2 could help assess lung aeration and improve lung recruitment immediately after birth.
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Affiliation(s)
- Sylvia van Os
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
| | - Po-Yin Cheung
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; University of Alberta; Edmonton AB Canada
| | - Gerhard Pichler
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; University of Alberta; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; Medical University Graz; Graz Austria
| | - Khalid Aziz
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; University of Alberta; Edmonton AB Canada
| | - Megan O'Reilly
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; University of Alberta; Edmonton AB Canada
| | - Georg M. Schmölzer
- Neonatal Research Unit; Alberta Health Services; Royal Alexandra Hospital; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; University of Alberta; Edmonton AB Canada
- Division of Neonatology; Department of Pediatrics; Medical University Graz; Graz Austria
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Hawkes GA, Kelleher J, Ryan CA, Dempsey EM. A review of carbon dioxide monitoring in preterm newborns in the delivery room. Resuscitation 2014; 85:1315-9. [PMID: 25086296 DOI: 10.1016/j.resuscitation.2014.07.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/14/2014] [Accepted: 07/18/2014] [Indexed: 01/24/2023]
Abstract
INTRODUCTION The physiologic adaptation to extra uterine life during the immediate neonatal period is unique. Many newborns require assistance in this adaptive process. Recent evidence now supports titrating oxygen to guide resuscitation but no guidance is provided on utilizing exhaled CO2 measurements. AIM To review the current evidence relating to the use of CO2 monitoring in preterm newborns in the delivery room. METHODS Search was performed using the Cochrane Central Register of Controlled Trials, MEDLINE (1966-2014) and PREMEDLINE, EMBASE (1980-2014), CINAHL (1982-2014), Web of Science (1975-2014) and the Oxford Database of Perinatal Trials. RESULTS The search revealed 21 articles relating to CO2 detection, either quantitative or qualitative, in the newborn infant. The majority of these were observational studies, eight relating to CO2 detection as a means of confirming correct endotracheal tube placement in the newborn infant. The other indication is for mask ventilation, and there is one randomized control trial and four observational studies of CO2 detection during mask ventilation. The overall recommendation for CO2 detection for both clinical uses in the delivery suite is level B. DISCUSSION CO2 detection may be of particular benefit for preterm infants in the delivery suite. However there is a need for further research into CO2 detection, in particular capnography, as a means of confirming effective PPV in neonatal resuscitation.
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Affiliation(s)
- G A Hawkes
- Department of Neonatology, Cork University Maternity Hospital, Ireland; Department of Paediatrics and Child Health, University College Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research (INFANT), Cork University Maternity Hospital, Wilton, Co. Cork, Ireland
| | - J Kelleher
- Department of Neonatology, University Maternity Hospital Limerick, Ireland
| | - C A Ryan
- Department of Neonatology, Cork University Maternity Hospital, Ireland; Department of Paediatrics and Child Health, University College Cork, Ireland
| | - E M Dempsey
- Department of Neonatology, Cork University Maternity Hospital, Ireland; Department of Paediatrics and Child Health, University College Cork, Ireland; Irish Centre for Fetal and Neonatal Translational Research (INFANT), Cork University Maternity Hospital, Wilton, Co. Cork, Ireland.
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Yang J, Wang H, Chen B, Wang B, Wang L. Use of signal decomposition to compensate for respiratory disturbance in mainstream capnometer. APPLIED OPTICS 2014; 53:2145-2151. [PMID: 24787173 DOI: 10.1364/ao.53.002145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 02/24/2014] [Indexed: 06/03/2023]
Abstract
End-tidal carbon dioxide (P(ET)CO₂) monitoring has become an important tool in clinical monitoring, but there are still limitations in practice. Low-frequency modulation was used to reliably acquire respiratory information. Then the disturbances of humidity and flow rate were removed by signal decomposition. Finally, the real-time concentration of CO₂ was calculated and displayed by an adjusted calibration function. Targeted experiments confirm that a period of 180 ms and a depth of 50% was the optimal choice. In this case, the effects of humidity and flow rate reflected by different components were removed effectively from the capnography. This capnometer obtains capnography with excellent accuracy and stability in long-term continuous monitoring.
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Abstract
Face mask ventilation provides respiratory support to newly born or sick infants. It is a challenging technique and difficult to ensure that an appropriate tidal volume is delivered because large and variable leaks occur between the mask and face; airway obstruction may also occur. Technique is more important than the mask shape although the size must appropriately fit the face. The essence of the technique is to roll the mask on to the face from the chin while avoiding the eyes, with a finger and thumb apply a strong even downward pressure to the top of the mask, away from the stem and sloped sides or skirt of the mask, place the other fingers under the jaw and apply a similar upward pressure. Preterm infants require continuous end-expiratory pressure to facilitate lung aeration and maintain lung volume. This is best done with a T-piece device, not a self-inflating or flow-inflating bag.
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Hawkes GA, O'Connell BJ, Livingstone V, Hawkes CP, Ryan CA, Dempsey EM. Efficacy and user preference of two CO2 detectors in an infant mannequin randomized crossover trial. Eur J Pediatr 2013; 172:1393-9. [PMID: 23756915 DOI: 10.1007/s00431-013-2057-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 05/28/2013] [Indexed: 10/26/2022]
Abstract
Assessment of effective ventilation in neonatal mask ventilation can be difficult. This study aims to determine whether manual ventilation with a T-piece resuscitator containing an inline CO2 detector (either a Pedi-Cap® CO2 detector or a Neo-StatCO2 <Kg® CO2 detector connected to a facemask) facilitates effective positive pressure ventilation compared to no device in a mannequin study. Paediatric and neonatal trainees were randomly assigned to determine which method they began with (no device, Pedi-Cap or a Neo-Stat). The participants used each method for a period of 3 min. They were video-recorded to determine the amount of effective ventilations delivered and the overall percentage efficiency of each method. Efficacy of ventilation was determined by comparing the number of manual ventilations delivered with the number of times chest rise was observed in the video recording. There were 19 paediatric trainees who provided a total of 7,790 ventilations, and 93% were deemed effective. The percentage of effective ventilations with the T-piece resuscitator alone, the PediCap and the NeoStat were 90, 94 and 96%, respectively. The difference was greatest in the first minute (T-piece resuscitator alone 87.5%, PediCap 94%, NeoStat 96%). Two thirds preferred the Neo-Stat. The use of a CO2 detector improves positive pressure ventilation in a mannequin model, especially in the first minute of positive pressure ventilation. The Neo-Stat CO2 detector was the preferred device by the majority of the participants.
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Affiliation(s)
- G A Hawkes
- Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland
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Nicoll J, O‘Reilly M, LaBossiere J, Lee T, Cowan S, Bigam D, Cheung P, Schmölzer G. Effect of cardiac output changes on exhaled carbon dioxide in newborn piglets. Resuscitation 2013; 84:1439-42. [DOI: 10.1016/j.resuscitation.2013.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 05/05/2013] [Accepted: 05/07/2013] [Indexed: 11/25/2022]
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A novel airway device with tactile sensing capabilities for verifying correct endotracheal tube placement. J Clin Monit Comput 2013; 28:179-85. [PMID: 24222343 DOI: 10.1007/s10877-013-9513-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
Abstract
We present a new device for verifying endotracheal tube (ETT) position that uses specialized sensors intended to distinguish anatomical features of the trachea and esophagus. This device has the potential to increase the safety of resuscitation, surgery, and mechanical ventilation and decrease the morbidity, mortality, and health care costs associated with esophageal intubation and unintended extubation by potentially improving the process and maintenance of endotracheal intubation. The device consists of a tactile sensor connected to the airway occlusion cuff of an ETT. It is intended to detect the presence or absence of tracheal rings immediately upon inflation of the airway occlusion cuff. The initial study detailed here verifies that a prototype device can detect contours similar to tracheal rings in a tracheal model.
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Schmölzer GM, Agarwal M, Kamlin COF, Davis PG. Supraglottic airway devices during neonatal resuscitation: An historical perspective, systematic review and meta-analysis of available clinical trials. Resuscitation 2013; 84:722-30. [DOI: 10.1016/j.resuscitation.2012.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/09/2012] [Accepted: 11/04/2012] [Indexed: 10/27/2022]
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Noninvasive Monitoring during Interhospital Transport of Newborn Infants. Crit Care Res Pract 2013; 2013:632474. [PMID: 23509618 PMCID: PMC3595700 DOI: 10.1155/2013/632474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 01/04/2013] [Accepted: 01/08/2013] [Indexed: 11/17/2022] Open
Abstract
The main indications for interhospital neonatal transports are radiographic studies (e.g., magnet resonance imaging) and surgical interventions. Specialized neonatal transport teams need to be skilled in patient care, communication, and equipment management and extensively trained in resuscitation, stabilization, and transport of critically ill infants. However, there is increasing evidence that clinical assessment of heart rate, color, or chest wall movements is imprecise and can be misleading even in experienced hands. The aim of the paper was to review the current evidence on clinical monitoring equipment during interhospital neonatal transport.
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Schmölzer GM, Bhatia R, Davis PG, Tingay DG. A comparison of different bedside techniques to determine endotracheal tube position in a neonatal piglet model. Pediatr Pulmonol 2013; 48:138-45. [PMID: 22615185 DOI: 10.1002/ppul.22580] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 03/06/2012] [Indexed: 12/22/2022]
Abstract
RATIONALE Endotracheal tube (ETT) malposition is common and an increasing number of non-invasive techniques to aid rapid identification of tube position are available. Electrical impedance tomography (EIT) is advocated as a tool to monitor ventilation. OBJECTIVE This study aimed to compare EIT with five other non-invasive techniques for identifying ETT position in a piglet model. METHODOLOGY Six saline lavage surfactant-depleted piglets were studied. Periods of ventilation with ETT placed in the oesophagus or a main bronchus (MB) were compared with an appropriately placed mid-tracheal ETT. Colorimetric end-tidal CO(2) (Pedi-Cap®), SpO(2) and heart rate, tidal volume (${\rm V}_{{\rm T}_{{\rm ao}} } $) using a hot-wire anemometer at the airway opening, tidal volume using respiratory inductive plethysmography (${\rm V}_{{\rm T}_{{\rm RIP}} } $) and regional tidal ventilation within each hemithorax (EIT) were measured. RESULTS Oesophageal ventilation: Pedi-Cap® demonstrated absence of color change. ${\rm V}_{{\rm T}_{{\rm ao}} } $, ${\rm V}_{{\rm T}_{{\rm RIP}} } $, and EIT correctly demonstrated no tidal ventilation. SpO(2) decreased from mean (SD) 96 (2)% to 74 (12)% (P < 0.05; Bonferroni post-test), without heart rate change. MB ventilation: SpO(2) , heart rate and Pedi-Cap® were unchanged compared with mid-tracheal position. ${\rm V}_{{\rm T}_{{\rm ao}} } $ and ${\rm V}_{{\rm T}_{{\rm RIP}} } $ decreased from a mean (SD) 10.8 (5.6) ml/kg and 14.6 (6.2) ml/kg to 5.5 (1.9) ml/kg and 6.4 (2.6) ml/kg (both P < 0.05; Bonferroni post-test). EIT identified the side of MB ventilation, with a mean (SD) 95 (3)% reduction in tidal volume in the unventilated lung. CONCLUSIONS EIT not only correctly identified oesophageal ventilation but also localized the side of MB ventilation. At present, no one technique is without limitations and clinicians should utilize a combination in addition to clinical judgement.
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Affiliation(s)
- Georg M Schmölzer
- Neonatal Research, Murdoch Childrens Research Institute, Melbourne, Australia.
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O'Reilly M, Cheung PY, Aziz K, Schmölzer GM. Short- and intermediate-term outcomes of preterm infants receiving positive pressure ventilation in the delivery room. Crit Care Res Pract 2013; 2013:715915. [PMID: 23401756 PMCID: PMC3562639 DOI: 10.1155/2013/715915] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 12/18/2012] [Indexed: 11/18/2022] Open
Abstract
Although recent advances in neonatal care have improved survival rates, rates of bronchopulmonary dysplasia remain unchanged. Although neonatologists are increasingly applying gentle ventilation strategies in the neonatal intensive care unit, the same emphasis has not been applied immediately after birth. A lung-protective strategy should start with the first breath to help in the establishment of functional residual capacity, facilitate gas exchange, and reduce volutrauma and atelectotrauma. This paper will discuss techniques and equipment during breathing assistance in the delivery room.
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Affiliation(s)
- Megan O'Reilly
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada T6G 2R3
| | - Po-Yin Cheung
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada T6G 2R3
| | - Khalid Aziz
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada T6G 2R3
| | - Georg M. Schmölzer
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada T6G 2R3
- Division of Neonatology, Department of Pediatrics, Medical University Graz, 8036 Graz, Austria
- Department of Newborn Medicine, Royal Alexandra Hospital, 10240 Kingsway Avenue NW, Edmonton, AB, Canada T5H 3V9
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Schmölzer GM, O'Reilly M, Davis PG, Cheung PY, Roehr CC. Confirmation of correct tracheal tube placement in newborn infants. Resuscitation 2012; 84:731-7. [PMID: 23211476 DOI: 10.1016/j.resuscitation.2012.11.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 11/26/2012] [Accepted: 11/26/2012] [Indexed: 11/29/2022]
Abstract
Tracheal intubation remains a common procedure during neonatal intensive care. Rapid confirmation of correct tube placement is important because tube malposition is associated with serious adverse outcomes. The current gold standard test to confirm tube position is a chest radiograph, however this is often delayed until after ventilation has commenced. Hence, point of care methods to confirm correct tube placement have been developed. The aim of this article is to review the available literature on tube placement in newborn infants. We reviewed books, resuscitation manuals and articles from 1830 to the present with the search terms "Infant, Newborn", "Endotracheal intubation", "Resuscitation", "Clinical signs", "Radiography", "Respiratory Function Tests", "Laryngoscopy", "Ultrasonography", and "Bronchoscopy". Various techniques have been studied to help clinicians assess tube placement. However, despite 85 years of clinical practice, the search for higher success rates and quicker intubation continues. Currently, chest radiography remains the gold standard test to confirm tube position. However, rigorous evaluation of new techniques is required to ensure the safety of newborn infants.
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Hawkes CP, Ryan CA, Dempsey EM. Comparison of the T-piece resuscitator with other neonatal manual ventilation devices: A qualitative review. Resuscitation 2012; 83:797-802. [DOI: 10.1016/j.resuscitation.2011.12.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 12/05/2011] [Accepted: 12/09/2011] [Indexed: 10/14/2022]
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Current world literature. Curr Opin Pediatr 2012; 24:277-84. [PMID: 22414891 DOI: 10.1097/mop.0b013e328351e459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Schmölzer G, Resch B, Schwindt JC. Standards zur Versorgung von reifen Neugeborenen in Österreich. Monatsschr Kinderheilkd 2011. [DOI: 10.1007/s00112-011-2472-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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