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Javed R, Gowda H. EBNEO Commentary: Reducing extubation failure in extreme preterm infants-higher vs standard nCPAP. Acta Paediatr 2024; 113:1123-1124. [PMID: 38439132 DOI: 10.1111/apa.17192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Affiliation(s)
- Rashida Javed
- Neonatal Intensive Care Unit, University Hospitals Birmingham, Birmingham, UK
| | - Harsha Gowda
- Neonatal Intensive Care Unit, University Hospitals Birmingham, Birmingham, UK
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Murray A, Beechinor T, Livingstone V, Dempsey E. Two hands are better than one: Positive pressure ventilation in a preterm neonatal manikin model. Acta Paediatr 2024; 113:989-991. [PMID: 38389164 DOI: 10.1111/apa.17156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024]
Affiliation(s)
- Anne Murray
- Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland
- Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
| | - Tom Beechinor
- Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland
- Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
| | - Vicki Livingstone
- Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland
| | - Eugene Dempsey
- Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland
- Irish Centre for Maternal and Child Health Research (INFANT), University College Cork, Cork, Ireland
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland
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Pike H, Kolstad V, Eilevstjønn J, Davis PG, Ersdal HL, Rettedal S. Newborn resuscitation timelines: Accurately capturing treatment in the delivery room. Resuscitation 2024; 197:110156. [PMID: 38417611 DOI: 10.1016/j.resuscitation.2024.110156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
OBJECTIVES To evaluate the use of newborn resuscitation timelines to assess the incidence, sequence, timing, duration of and response to resuscitative interventions. METHODS A population-based observational study conducted June 2019-November 2021 at Stavanger University Hospital, Norway. Parents consented to participation antenatally. Newborns ≥28 weeks' gestation receiving positive pressure ventilation (PPV) at birth were enrolled. Time of birth was registered. Dry-electrode electrocardiogram was applied as soon as possible after birth and used to measure heart rate continuously during resuscitation. Newborn resuscitation timelines were generated from analysis of video recordings. RESULTS Of 7466 newborns ≥28 weeks' gestation, 289 (3.9%) received PPV. Of these, 182 had the resuscitation captured on video, and were included. Two-thirds were apnoeic, and one-third were breathing ineffectively at the commencement of PPV. PPV was started at median (quartiles) 72 (44, 141) seconds after birth and continued for 135 (68, 236) seconds. The ventilation fraction, defined as the proportion of time from first to last inflation during which PPV was provided, was 85%. Interruption in ventilation was most frequently caused by mask repositioning and auscultation. Suctioning was performed in 35% of newborns, in 95% of cases after the initiation of PPV. PPV was commenced within 60 s of birth in 49% of apnoeic and 12% of ineffectively breathing newborns, respectively. CONCLUSIONS Newborn resuscitation timelines can graphically present accurate, time-sensitive and complex data from resuscitations synchronised in time. Timelines can be used to enhance understanding of resuscitation events in data-guided quality improvement initiatives.
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Affiliation(s)
- Hanne Pike
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway; Department of Pediatrics, Stavanger University Hospital, Stavanger, Norway
| | - Vilde Kolstad
- Department for Simulation-based Learning, Stavanger University Hospital, Stavanger, Norway
| | | | | | - Hege Langli Ersdal
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway; Department for Simulation-based Learning, Stavanger University Hospital, Stavanger, Norway
| | - Siren Rettedal
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway; Department for Simulation-based Learning, Stavanger University Hospital, Stavanger, Norway.
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Mukerji A, Read B, Yang J, Baczynski M, Ng E, Dunn M, Ethier G, Abou Mehrem A, Beltempo M, Drolet C, da Silva O, Louis D, Lemyre B, Afifi J, Singh B, Sherlock R, Stavel M, Masse E, Kanungo J, Wong J, Bodani J, Khurshid F, Lee KS, Augustine S, de Oliveira CB, Makary H, Newman A, Ojah C, Shah PS. CPAP Versus NIPPV Postextubation in Preterm Neonates: A Comparative-Effectiveness Study. Pediatrics 2024; 153:e2023064045. [PMID: 38511227 DOI: 10.1542/peds.2023-064045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/05/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Nasal intermittent positive pressure ventilation (NIPPV) has been shown to be superior to nasal continuous positive airway pressure (CPAP) postextubation in preterm neonates. However, studies have not permitted high CPAP pressures or rescue with other modes. We hypothesized that if CPAP pressures >8 cmH2O and rescue with other modes were permitted, CPAP would be noninferior to NIPPV. METHODS We conducted a pragmatic, comparative-effectiveness, noninferiority study utilizing network-based real-world data from 22 Canadian NICUs. Centers self-selected CPAP or NIPPV as their standard postextubation mode for preterm neonates <29 weeks' gestation. The primary outcome was failure of the initial mode ≤72 hours. Secondary outcomes included failure ≤7 days, and reintubation ≤72 hours and ≤7 days. Groups were compared using a noninferiority adjusted risk-difference (aRD) margin of 0.05, and margin of no difference. RESULTS A total of 843 infants extubated to CPAP and 974 extubated to NIPPV were included. CPAP was not noninferior (and inferior) to NIPPV for failure of the initial mode ≤72 hours (33.0% vs 26.3%; aRD 0.07 [0.03 to 0.12], Pnoninferiority(NI) = .86), and ≤7 days (40.7% vs 35.8%; aRD 0.09 [0.05 to 0.13], PNI = 0.97). However, CPAP was noninferior (and equivalent) to NIPPV for reintubation ≤72 hours (13.2% vs 16.1%; aRD 0.01 [-0.05 to 0.02], PNI < .01), and noninferior (and superior) for reintubation ≤7 days (16.4% vs 22.8%; aRD -0.04 [-0.07 to -0.001], PNI < .01). CONCLUSIONS CPAP was not noninferior to NIPPV for failure ≤72 hours postextubation; however, it was noninferior to NIPPV for reintubation ≤72 hours and ≤7 days. This suggests CPAP may be a reasonable initial postextubation mode if alternate rescue strategies are available.
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Affiliation(s)
- Amit Mukerji
- McMaster Children's Hospital, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Brooke Read
- London Health Sciences Centre, London, Ontario, Canada
| | - Junmin Yang
- Mount Sinai Hospital, Department of Pediatrics
| | | | - Eugene Ng
- Sunnybrook Health Sciences Centre, Department of Pediatrics
| | - Michael Dunn
- Sunnybrook Health Sciences Centre, Department of Pediatrics
| | - Guillaume Ethier
- CHU Sainte-Justine, Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada
| | - Ayman Abou Mehrem
- Foothills Medical Centre, Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Marc Beltempo
- Montreal Children's Hospital, McGill University, Montreal, Quebec, Canada
| | - Christine Drolet
- CHU de Quebec, Department of Pediatrics, Laval University, Quebec, Quebec City, Canada
| | - Orlando da Silva
- London Health Sciences Centre, Department of Pediatrics, Western University, London, Ontario, Canada
| | - Deepak Louis
- Health Sciences Centre and St. Boniface Hospital, Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Brigitte Lemyre
- The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | | | | | | | | | - Edith Masse
- CIUSSSE-CHUS, Department of Pediatrics, University of Sherbrooke, Quebec, Canada
| | - Jaideep Kanungo
- Royal Victoria Hospital, University of Victoria, Victoria, British Columbia, Canada
| | - Jonathan Wong
- BC Women's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jaya Bodani
- Regina General Hospital, Department of Pediatrics, University of Regina, Regina, Saskatchewan, Canada
| | - Faiza Khurshid
- Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| | - Kyong-Soon Lee
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | - Alana Newman
- Saint John Regional Hospital, Saint John, New Brunswick, Department of Pediatrics, Dalhousie University, Halifax, Novia Scotia, Canada
| | - Cecil Ojah
- Saint John Regional Hospital, Saint John, New Brunswick, Department of Pediatrics, Dalhousie University, Halifax, Novia Scotia, Canada
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Almudares F, Gandhi B. EBNEO Commentary: Non-invasive high-frequency oscillatory ventilation vs nasal continuous positive airway pressure vs nasal intermittent positive pressure ventilation as postextubation support for preterm neonates in China: A randomized clinical trial. Acta Paediatr 2024; 113:623-624. [PMID: 38173422 DOI: 10.1111/apa.17088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Affiliation(s)
- Faeq Almudares
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Bheru Gandhi
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
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Ramanathan R, Biniwale M. Noninvasive Ventilation. Crit Care Nurs Clin North Am 2024; 36:51-67. [PMID: 38296376 DOI: 10.1016/j.cnc.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Systematic Reviews and Randomized clinical trials have shown that the use of noninvasive ventilation (NIV) compared to invasive mechanical ventilation reduces the risk of bronchopulmonary dysplasia and or mortality. Most commonly used NIV modes include nasal continuous positive airway pressure, bi-phasic modes, such as, bi-level positive airway pressure, nasal intermittent positive pressure ventilation, high flow nasal cannula, noninvasive neurally adjusted ventilatory assist, and nasal high frequency ventilation are discussed in this review.
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Affiliation(s)
- Rangasamy Ramanathan
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine of USC, Los Angeles General Medical Center, 1200 North State Street, IRD-820, Los Angeles, CA 90033, USA.
| | - Manoj Biniwale
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine of USC, Los Angeles General Medical Center, 1200 North State Street, IRD-820, Los Angeles, CA 90033, USA
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Tan HL, Lee JH, Wong JJM. Volume Targeting During High-Frequency Oscillatory Ventilation: What Should Clinicians Know. Respir Care 2024; 69:384-385. [PMID: 38416661 PMCID: PMC10984604 DOI: 10.4187/respcare.11884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Affiliation(s)
- Herng Lee Tan
- Respiratory Therapy ServiceAllied Health SpecialtiesKK Women's and Children's HospitalSingaporeChildren's Intensive Care UnitDepartment of Pediatric SubspecialtiesKK Women's and Children's HospitalSingapore
| | - Jan Hau Lee
- Children's Intensive Care UnitDepartment of Pediatric SubspecialtiesKK Women's and Children's HospitalSingaporeDuke-NUS Medical SchoolSingapore
| | - Judith Ju-Ming Wong
- Children's Intensive Care UnitDepartment of Pediatric SubspecialtiesKK Women's and Children's HospitalSingaporeDuke-NUS Medical SchoolSingapore
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Lynch AL, Matlock DN, Akmyradov C, Weisner MD, Beck J, Sinderby C, Courtney SE. Tidal volume delivery during nasal intermittent positive pressure ventilation: infant cannula vs. nasal continuous positive airway pressure prongs. J Perinatol 2024; 44:244-249. [PMID: 38129599 DOI: 10.1038/s41372-023-01846-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/16/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE To measure tidal volume delivery during nasal intermittent positive pressure ventilation with two nasal interfaces: infant cannula and nasal prongs. STUDY DESIGN A single-center crossover study of neonates with mild respiratory distress. Fifteen preterm neonates were randomized to initial interface of infant cannula or nasal prongs and monitored on a sequence of pressure settings first on the initial interface, then repeated on the alternate interface. We compared relative tidal volumes between the two interfaces with two-way repeated measures ANOVA during three breath types: synchronized (I), patient effort without ventilator breaths (II), and ventilator breaths without patient effort (III). Clinical trial #NCT04326270. RESULTS Type III breaths delivered no significant tidal volume. No significant difference was measured in relative tidal volume delivery between the interfaces when breath types were matched. CONCLUSIONS Nasal intermittent positive pressure ventilation delivers neither clinically nor statistically significant tidal volume with either infant cannula or nasal prongs.
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Affiliation(s)
- Ashley L Lynch
- University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - David N Matlock
- University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Chary Akmyradov
- Biostatistics Core, Arkansas Children's Research Institute, Arkansas Children's Hospital, Little Rock, USA
| | | | - Jennifer Beck
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
- Department of Medicine and Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
- Institute for Biomedical Engineering and Science Technology (iBEST) at Ryerson University and St-Michael's Hospital, Toronto, ON, Canada
| | - Christer Sinderby
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
- Department of Medicine and Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
- Institute for Biomedical Engineering and Science Technology (iBEST) at Ryerson University and St-Michael's Hospital, Toronto, ON, Canada
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Tourneux P, Debillon T, Flamant C, Jarreau PH, Schwartz D, Athea Y, Guellec I. Early factors associated with continuous positive airway pressure failure in moderate and late preterm infants - response. Eur J Pediatr 2024; 183:979-980. [PMID: 38047959 DOI: 10.1007/s00431-023-05349-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Affiliation(s)
- Pierre Tourneux
- Neonatal Intensive Care Unit, University Hospital Center of Amiens, Jules Verne University of Picardy, 80054, Amiens Cedex 1, Amiens, France.
| | - Thierry Debillon
- Neonatology Intensive Care Unit, University Hospital of Grenoble, Grenoble, France
| | - Cyril Flamant
- Neonatal Intensive Care Unit, University Hospital of Nantes, Nantes, France
| | - Pierre-Henri Jarreau
- Neonatal Intensive Care Unit of Port-Royal, AP-HP, University of Paris, Paris, France
| | | | - Yoni Athea
- Medical Affairs, Chiesi SAS, Bois Colombes, France
| | - Isabelle Guellec
- Neonatal and Paediatric Intensive Care Unit, University Hospital of l'Archet, Nice, France
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Permall DL, Zhang Y, Li H, Guan Y, Chen X. A clinical study evaluating the combination of LISA and SNIPPV for the treatment of respiratory distress syndrome in preterm infants. Sci Rep 2024; 14:1429. [PMID: 38228632 PMCID: PMC10792160 DOI: 10.1038/s41598-023-50303-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/18/2023] [Indexed: 01/18/2024] Open
Abstract
To compare the therapeutic effect of less invasive surfactant administration (LISA) followed by synchronized nasal intermittent positive pressure ventilation (SNIPPV) and traditional intubate-Surfactant-Extubate (InSurE) strategy for the treatment of neonatal respiratory distress syndrome (NRDS). A single-center, non-randomized and single- blinded study Tertiary neonatal intensive care unit 89 infants enrolled were preterm with gestational age < 366/7 weeks and clinically diagnosed with neonatal RDS (NRDS) Interventions: 32 infants were assigned to the LISA + SNIPPV group and 57 infants to the InSurE + nCPAP group. No statistically significant differences were noted in the baseline characteristics of the enrolled infants. A lower proportion of infants developed BPD in the LISA + SNIPPV group compared to the InSurE + CPAP group [10 (31.25%) vs. 21 (36.84%), P > 0.05]; however, there was no statistically significant difference. The number needed to treat (NNT) with LISA + SNIPPV to prevent BPD development is 18. The mortality rate was not significant between our study arms [1 (3.13%) vs 2 (3.51%), P > 0.05]. There were no statistically significant differences in the durations (days) of MV [(12.18 ± 13.89) vs. (11.35 ± 11.61), P > 0.05], oxygen therapy [(35.03 ± 19.13) vs. (39.75 ± 17.91), P > 0.05] and re-intubation rates [(0.19 ± 0.40) vs. (0.21 ± 0.45), P > 0.05] between the two study groups. In terms of complications, the incidence of patent ductus arteriosus (PDA) [24 (75.00%) vs. 27 (47.37%), P < 0.05] was higher and a lower rate of disturbed liver function [1 (3.23%) vs. 19 (33.33%), P < 0.05] were observed in the LISA + SNIPPV group. Acid-base imbalances were reportedly significantly higher in the InSurE group (P < 0.05). No significant differences in other complications were noted. In the interventional group, FiO2 requirements were significantly lower up until the 3rd week of treatment [FiO2 at day 0, (30.75 ± 4.78) vs. (34.66 ± 9.83), P < 0.05; FiO2 at day 21, (25.32 ± 3.74) vs. (29.11 ± 8.17), P < 0.05], as was RSS on days 2 [(0.77 ± 0.38) vs. (1.94 ± 0.75), P < 0.05] and 3 [(0.66 ± 0.33) vs. (1.89 ± 0.82), P < 0.05] after treatment. Additionally, infants in the standard group had a significantly prolonged hospital stay (days) [(45.97 ± 16.93) vs. (54.40 ± 16.26), P < 0.05]. The combination of LISA and SNIPPV for NRDS can potentially lower the rate of BPD, FiO2 demand and shorten the length of hospitalization.
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Affiliation(s)
| | - Yuhan Zhang
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hanyue Li
- Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yafei Guan
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoqing Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
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11
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Zhu T, Shi Y. [Interpretation of 2023 American Heart Association and American Academy of Pediatrics focused update on neonatal resuscitation guidelines]. Zhongguo Dang Dai Er Ke Za Zhi 2024; 26:25-30. [PMID: 38269455 PMCID: PMC10817739 DOI: 10.7499/j.issn.1008-8830.2311107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 12/08/2023] [Indexed: 01/26/2024]
Abstract
In November 2023, the American Heart Association and the American Academy of Pediatrics jointly released key updates to the neonatal resuscitation guidelines based on new clinical evidence. This update serves as an important supplement to the "Neonatal resuscitation: 2020 American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care". The aim of this paper is to outline the key updates and provide guidance on umbilical cord management and the selection of positive pressure ventilation equipment and its additional interfaces in neonatal resuscitation.
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Affiliation(s)
- Tian Zhu
- Department of Neonatology, Children's Hospital of Chongqing Medical University/National Clinical Research Center for Child Health and Disorders/Ministry of Education Key Laboratory of Child Development and Disorders/Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China (Shi Y, . cn)
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12
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Li G, Ma S, Shu Q, Fang Z, Yan Z, Si B. PCV-VG combined individualized PEEP determination in one-lung ventilated patients with PEEP step change direction: A randomized controlled trial. Clin Respir J 2024; 18:e13696. [PMID: 37723983 PMCID: PMC10775886 DOI: 10.1111/crj.13696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 08/19/2023] [Accepted: 08/29/2023] [Indexed: 09/20/2023]
Abstract
INTRODUCTION The efficacy of pressure-controlled volume-guaranteed ventilation (PCV-VG) combined with a gradient-directional change in positive end-expiratory pressure (PEEP) during one-lung ventilation (OLV) in patients who underwent thoracoscopic surgery was investigated. METHODS Ninety patients were randomly divided into the PC (PCV-VG + 5 cm H2 O fixed PEEP), PI (PCV-VG + incremental PEEP titration), and PD (PCV-VG + decremental PEEP titration) groups. Hemodynamic (heart rate [HR] and mean arterial pressure [MAP]), respiratory mechanics (Ppeak , Pmean, and Cdyn), and arterial blood gas (pH, PaCO2 , PaO2 , and PaO2 /FiO2 ) indices were evaluated at T1 (10 min of two-lung ventilation [TLV]), T2 (10 min of OLV), and T3 (10 min of recovery, TLV). Enzyme-linked immunosorbent assay was performed to detect neutrophil elastase (NE), clara cell secretory protein (CC16), and interleukin-8 (IL-8) levels at T1 and T3. RESULTS At T2 and T3 , Ppeak was lower in the PI and PD groups than in the PC group, while Pmean and Cdyn were higher than in the PC group. Ppeak in the PD group was lower than that in the PI group; however, Pmean was higher at T2 and T3 (P < 0.05). At T2 , PaO2 and PaO2 /FiO2 were higher, but PaO2 /FiO2 and VD /VT were lower in the PD and PI groups than in the PC group (P < 0.05). NE, CC16, IL-6, and IL-8 levels were elevated in all three groups at T3 , but the PI and PD groups had lower levels than the PC group (P < 0.05). The incidences of postoperative pulmonary complications (PPCs) and surgical intensive care unit hospitalizations in the PD and PI groups were much lower. CONCLUSION Gradient-directed altered PEEP titration could improve respiratory mechanics, arterial blood gases, and inflammatory responses and reduce the incidence of PPCs in patients undergoing thoracoscopic surgery.
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Affiliation(s)
- Guowei Li
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
| | - Saixian Ma
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
| | - Qian Shu
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
| | - Zhuhong Fang
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
| | - Zhiwen Yan
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
| | - Bo Si
- Department of AnesthesiologyAffiliated Wuxi Fifth Hospital of Jiangnan University (Infectious Diseases Hospital of Wuxi)WuxiJiangsuChina
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Monnelly V, Josephsen JB, Isayama T, de Almeida MFB, Guinsburg R, Schmölzer GM, Rabi Y, Wyckoff MH, Weiner G, Liley HG, Solevåg AL. Exhaled CO 2 monitoring to guide non-invasive ventilation at birth: a systematic review. Arch Dis Child Fetal Neonatal Ed 2023; 109:74-80. [PMID: 37558397 DOI: 10.1136/archdischild-2023-325698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/24/2023] [Indexed: 08/11/2023]
Abstract
OBJECTIVE Measuring exhaled carbon dioxide (ECO2) during non-invasive ventilation at birth may provide information about lung aeration. However, the International Liaison Committee on Resuscitation (ILCOR) only recommends ECO2 detection for confirming endotracheal tube placement. ILCOR has therefore prioritised a research question that needs to be urgently evaluated: 'In newborn infants receiving intermittent positive pressure ventilation by any non-invasive interface at birth, does the use of an ECO2 monitor in addition to clinical assessment, pulse oximetry and/or ECG, compared with clinical assessment, pulse oximetry and/or ECG only, decrease endotracheal intubation in the delivery room, improve response to resuscitation, improve survival or reduce morbidity?'. DESIGN Systematic review of randomised and non-randomised studies identified by Ovid MEDLINE, Embase and Cochrane CENTRAL search until 1 August 2022. SETTING Delivery room. PATIENTS Newborn infants receiving non-invasive ventilation at birth. INTERVENTION ECO2 measurement plus routine assessment compared with routine assessment alone. MAIN OUTCOME MEASURES Endotracheal intubation in the delivery room, response to resuscitation, survival and morbidity. RESULTS Among 2370 articles, 23 were included; however, none had a relevant control group. Although studies indicated that the absence of ECO2 may signify airway obstruction and ECO2 detection may precede a heart rate increase in adequately ventilated infants, they did not directly address the research question. CONCLUSIONS Evidence to support the use of an ECO2 monitor to guide non-invasive positive pressure ventilation at birth is lacking. More research on the effectiveness of ECO2 measurement in addition to routine assessment during non-invasive ventilation of newborn infants at birth is needed. PROSPERO REGISTRATION NUMBER CRD42022344849.
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Affiliation(s)
- Vix Monnelly
- Department of Neonatology, Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Justin B Josephsen
- Department of Pediatrics, Saint Louis University School of Medicine, St Louis, MO, USA
| | - Tetsuya Isayama
- Division of Neonatology, Center of Maternal-Fetal Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Maria Fernanda B de Almeida
- Division of Neonatal Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ruth Guinsburg
- Division of Neonatal Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Georg M Schmölzer
- Centre for the Studies of Asphyxia and Resuscitation and Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Yacov Rabi
- Department of Pediatrics, University of Calgary and Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Myra H Wyckoff
- Pediatrics, UT Southwestern Medical Center at Dallas, Dallas, Texas, USA
| | - Gary Weiner
- Department of Pediatrics, Neonatal-Perinatal Medicine, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI, USA
| | - Helen G Liley
- Mater Research Institute, The University of Queensland, South Brisbane, QLD, Australia
| | - Anne Lee Solevåg
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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14
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Kuypers KLAM, Kashyap AJ, Cramer SJE, Hooper SB, Te Pas AB. The effect of imposed resistance in neonatal resuscitators on pressure stability and peak flows: a bench test. Pediatr Res 2023; 94:1929-1934. [PMID: 37460710 DOI: 10.1038/s41390-023-02715-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 06/01/2023] [Accepted: 06/14/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND The importance of neonatal resuscitator resistance is currently unknown. In this study we investigated peak flows and pressure stability resulting from differences in imposed resistance during positive pressure ventilation(PPV) and simulated spontaneous breathing (SSB) between the r-PAP, low-resistance resuscitator, and Neopuff™, high-resistance resuscitator. METHODS In a bench test, 20 inflations during PPV and 20 breaths during SSB were analysed on breath-by-breath basis to determine peak flow and pressure stability using the Neopuff™ with bias gas flow of 8, 12 or 15 L/min and the r-PAP with total gas flow of 15 L/min. RESULTS Imposed resistance of the Neopuff™ was significantly reduced when the bias gas flow was increased from 8 to 15 L/min, which resulted in higher peak flows during PPV and SSB. Peak flows in the r-PAP were, however, significantly higher and fluctuations in CPAP during SSB were significantly smaller in the r-PAP compared to the Neopuff™ for all bias gas flow levels. During PPV, a pressure overshoot of 3.2 cmH2O was observed in the r-PAP. CONCLUSIONS The r-PAP seemed to have a lower resistance than the Neopuff™ even when bias gas flows were increased. This resulted in more stable CPAP pressures with higher peak flows when using the r-PAP. IMPACT The traditional T-piece system (Neopuff™) has a higher imposed resistance compared to a new neonatal resuscitator (r-PAP). This study shows that reducing imposed resistance leads to smaller CPAP fluctuations and higher inspiratory and expiratory peak flows. High peak flows might negatively affect lung function and/or cause lung injury in preterm infants at birth. This study will form the rationale for further studies investigating these effects. A possible compromise might be to use the traditional T-piece system with a higher bias gas flow (12 L/min), thereby reducing the imposed resistance and generating more stable PEEP/CPAP pressures, while limiting potentially harmful peak flows.
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Affiliation(s)
- Kristel L A M Kuypers
- Division of Neonatology, Department of Paediatrics, Willem-Alexander Children's Hospital, Leiden University Medical Centre, Leiden, The Netherlands.
| | - Aidan J Kashyap
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Sophie J E Cramer
- Division of Neonatology, Department of Paediatrics, Willem-Alexander Children's Hospital, Leiden University Medical Centre, Leiden, The Netherlands
| | - Stuart B Hooper
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Willem-Alexander Children's Hospital, Leiden University Medical Centre, Leiden, The Netherlands
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15
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Magalhães P, Leme Silva P, Almeida L, DO Carmo Lima M, Fernandes Santos I, Camilo CA, Sena A. Positive pressure ventilation in the weaning of preterm newborns. Minerva Pediatr (Torino) 2023; 75:817-821. [PMID: 32639116 DOI: 10.23736/s2724-5276.20.05677-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
BACKGROUND Weaning from invasive mechanical ventilation (IMV) of preterm newborns (PTNB) is one of the critical stages of life support in the Neonatal Intensive Care Unit (NICU). Noninvasive positive pressure ventilation (NPPV) has been used to facilitate weaning from IMV and includes continuous positive airway pressure (CPAP) without or with inspiratory pressure support (bilevel NPPV). Nevertheless, there is little information about their adherence and success rate during weaning process. METHODS In this retrospective cohort study, weaning data from patients admitted to a NICU from the northeast region of Brazil were analyzed. Sample was composed of PTNB submitted to IMV and divided in two groups according to the weaning strategy adopted: bilevel NPPV or NCPAP. Weaning failure was defined as returning to IMV within less than 48 h after extubation. RESULTS Fifty-seven PTNB were included. Majority were females, had caesarean delivery, very low weight upon birth (760-1480 g) and neonatal hypoxemia scores (Apgar) <7 in the first minute. Respiratory distress syndrome occurred in 56.7% of PTNB whilst respiratory infections occurred in 35.1% of patients. Bilevel NPPV was the most chosen modality of weaning. No difference in success rate was found between bilevel NPPV and NCPAP (P=0.17). CONCLUSIONS In this study, the application of noninvasive ventilation in preterm newborns for weaning from IMV was similar success rate between bilevel NPPV and NCPAP.
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Affiliation(s)
| | | | | | | | | | - Carlos A Camilo
- State University of Londrina, Paraná, Brazil
- University Pitágoras Unopar, Paraná, Brazil
| | - Aline Sena
- Health Institute Elpídio de Almeida, Paraíba, Brazil
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16
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Feng J, Li K, Luo W, Xie F, Li M, Wu Y. Effect of continuous positive pressure ventilation on left ventricular diastolic function E/A ratio in patients with obstructive sleep apnea: a meta-analysis. Sleep Breath 2023; 27:2333-2340. [PMID: 37160854 DOI: 10.1007/s11325-023-02836-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 04/09/2023] [Accepted: 04/14/2023] [Indexed: 05/11/2023]
Abstract
PURPOSE Many studies have shown that obstructive sleep apnea (OSA) is related to reduced left ventricular diastolic function. Continuous positive airway pressure (CPAP) is generally recognized as the preferred therapy for OSA. Yet, the effect of CPAP on left ventricular diastolic function in patients with OSA is inconclusive. In order to assess the influence of CPAP on left ventricular diastolic function in patients with OSA, we performed this meta-analysis of clinical experiments. METHODS PubMed, Web of Science, OVID, Embase, and Cochrane Library from the establishment of the database to July 6, 2022, were searched for clinical trial data. Inclusion criteria for this meta-analysis were: (1) Patients in the experimental group were diagnosed with OSA by polysomnography; (2) CPAP treatment course ≥ 4 weeks; (3) baseline and follow-up data of the diastolic function parameter E/A ratio were reported in the literature. Exclusion criteria were: (1) Central sleep apnea (CSA); (2) comorbid organic heart diseases such as coronary heart disease; (3) age < 18 years old; (4) conference abstracts or duplicate publications. RESULTS After exclusions, 7 studies (2 RCTs and 5 prospective studies) with 473 subjects (225 in the treatment group and 248 in the matched control group) were included in the meta-analysis. Subgroup analysis indicated that after CPAP therapy, the left ventricular (LV) E/A ratio was significantly increased in patients with OSA (weighted mean difference (WMD) = 0.22, 95% CI = - 0.06-0.38; P = 0.007). Sensitivity analyses showed that the combined results were not influenced by single studies. Publication bias was not significant (Egger's test, P = 0.813). CONCLUSIONS The results of this meta-analysis suggest that CPAP may improve the E/A ratio in patients with OSA patients. However, the small number of studies (n = 7) decreases confidence in the findings. Thus, carefully designed randomized controlled trials are needed to confirm the findings.
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Affiliation(s)
- Jie Feng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China
| | - Kai Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China
| | - Wei Luo
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China
| | - Feng Xie
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China
| | - Meng Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China
| | - Yanqing Wu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, 330006, Jiangxi, China.
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17
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Ni Chathasaigh CM, Davis PG, O'Donnell CP, McCarthy LK. Nasal interfaces for neonatal resuscitation. Cochrane Database Syst Rev 2023; 10:CD009102. [PMID: 37787113 PMCID: PMC10546484 DOI: 10.1002/14651858.cd009102.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
BACKGROUND The Neonatal Task Force of the International Liaison Committee on Resuscitation (ILCOR) makes practice recommendations for the care of newborn infants in the delivery room (DR). ILCOR recommends that all infants who are gasping, apnoeic, or bradycardic (heart rate < 100 per minute) should be given positive pressure ventilation (PPV) with a manual ventilation device (T-piece, self-inflating bag, or flow-inflating bag) via an interface. The most commonly used interface is a face mask that encircles the infant's nose and mouth. However, gas leak and airway obstruction are common during face mask PPV. Nasal interfaces (single and binasal prongs (long or short), or nasal masks) and laryngeal mask airways (LMAs) may also be used to deliver PPV to newborns in the DR, and may be more effective than face masks. OBJECTIVES To determine whether newborn infants receiving PPV in the delivery room with a nasal interface compared to a face mask, laryngeal mask airway (LMA), or another type of nasal interface have reduced mortality and morbidity. To assess whether safety and efficacy of the nasal interface differs according to gestational age or ventilation device. SEARCH METHODS Searches were conducted in September 2022 in CENTRAL, MEDLINE, Embase, Epistemonikos, and two trial registries. We searched conference abstracts and checked the reference lists of included trials and related systematic reviews identified through the search. SELECTION CRITERIA We included randomised controlled trials (RCTs) and quasi-RCT's that compared the use of nasal interfaces to other interfaces (face masks, LMAs, or one nasal interface to another) to deliver PPV to newborn infants in the DR. DATA COLLECTION AND ANALYSIS Each review author independently evaluated the search results against the selection criteria, screened retrieved records, extracted data, and appraised the risk of bias. If they were study authors, they did not participate in the selection, risk of bias assessment, or data extraction related to the study. In such instances, the study was independently assessed by other review authors. We contacted trial investigators to obtain additional information. We completed data analysis according to the standards of Cochrane Neonatal, using risk ratio (RR) and 95% confidence Intervals (CI) to measure the effect of the different interfaces. We used fixed-effect models and the GRADE approach to assess the certainty of the evidence. MAIN RESULTS We included five trials, in which 1406 infants participated. They were conducted in 13 neonatal centres across Europe and Australia. Each of these trials compared a nasal interface to a face mask for the delivery of respiratory support to newborn infants in the DR. Potential sources of bias were a lack of blinding to treatment allocation of the caregivers and investigators in all trials. The evidence suggests that resuscitation with a nasal interface in the DR, compared with a face mask, may have little to no effect on reducing death before discharge (typical risk ratio (RR) 0.72, 95% CI 0.47 to 1.13; 3 studies, 1124 infants; low-certainty evidence). Resuscitation with a nasal interface may reduce the rate of intubation in the DR, but the evidence is very uncertain (RR 0.68, 95% CI 0.54 to 0.85; 5 studies, 1406 infants; very low-certainty evidence). The evidence is very uncertain for the rate of intubation within 24 hours of birth (RR 0.97, 95% CI 0.85 to 1.09; 3 studies, 749 infants; very low-certainty evidence), endotracheal intubation outside the DR during hospitalisation (RR 1.15, 95% CI 0.93 to 1.42; 1 study, 144 infants; very low-certainty evidence) and cranial ultrasound abnormalities (intraventricular haemorrhage (IVH) grade ≥ 3, or periventricular leukomalacia; RR 0.94, 95% CI 0.55 to 1.61; 3 studies, 749 infants; very low-certainty evidence). Resuscitation with a nasal interface in the DR, compared with a face mask, may have little to no effect on the incidence of air leaks (RR 1.09, 95% CI 0.85 to 1.09; 2 studies, 507 infants; low-certainty evidence), or the need for supplemental oxygen at 36 weeks' corrected gestational age (RR 1.06, 95% CI 0.8 to 1.40; 2 studies, 507 infants; low-certainty evidence). We identified one ongoing study, which compares a nasal mask to a face mask to deliver PPV to infants in the DR. We did not identify any completed trials that compared nasal interfaces to LMAs or one nasal interface to another. AUTHORS' CONCLUSIONS Nasal interfaces were found to offer comparable efficacy to face masks (low- to very low-certainty evidence), supporting resuscitation guidelines that state that nasal interfaces are a comparable alternative to face masks for providing respiratory support in the DR. Resuscitation with a nasal interface may reduce the rate of intubation in the DR when compared with a face mask. However, the evidence is very uncertain. This uncertainty is attributed to the use of a new ventilation system in the nasal interface group in two of the five trials. As such, it is not possible to differentiate separate, specific effects related to the ventilation device or to the interface in these studies.
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Affiliation(s)
- Caitriona M Ni Chathasaigh
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Peter G Davis
- Newborn Research Centre and Neonatal Services, The Royal Women's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Australia
| | - Colm Pf O'Donnell
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Lisa K McCarthy
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
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18
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Abstract
This chapter focuses on the pharmacological management of newborn infants in the peri-extubation period to reduce the risk of re-intubation and prolonged mechanical ventilation. Drugs used to promote respiratory drive, reduce the risk of apnoea, reduce lung inflammation and avoid bronchospasm are critically assessed. When available, Cochrane reviews and randomised trials are used as the primary sources of evidence. Methylxanthines, particularly caffeine, are well studied and there is accumulating evidence to guide clinicians on the timing and dosage that may be used. Efficacy and safety for doxapram, steroids, adrenaline and salbutamol are summarised. Management of term infants, extubation following surgery, accidental and complicated extubation and the use of cuffed endotracheal tubes are presented. Overall, caffeine is the only drug with a substantial evidence base, proven to increase the likelihood of successful extubation in preterm infants; no drugs are needed to facilitate extubation in most term infants. Future studies might further define the role of caffeine in late preterm infants and evaluate medications for post-extubation stridor, bronchospasm or apnoea not responsive to methylxanthines.
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Affiliation(s)
- Matteo Bruschettini
- Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden.
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19
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Baldan E, Varal IG, Dogan P, Cizmeci MN. The effect of non-invasive high-frequency oscillatory ventilation on the duration of non-invasive respiratory support in late preterm and term infants with transient tachypnea of the newborn: a randomized controlled trial. Eur J Pediatr 2023; 182:4499-4507. [PMID: 37491619 DOI: 10.1007/s00431-023-05128-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/27/2023]
Abstract
Nasal continuous positive airway pressure (nCPAP) is one of the most commonly used non-invasive respiratory support modes in neonates with transient tachypnea of the newborn (TTN). Non-invasive high-frequency oscillatory ventilation (nHFOV) is a non-invasive respiratory support mode that has been increasingly used in neonatal respiratory disorders. This prospective randomized controlled study compared the efficacy of nHFOV and nCPAP in reducing the duration of non-invasive respiratory support. Late preterm and term infants > 34 weeks' gestation were included in the study. The infants were randomly assigned to receive either nHFOV or nCPAP. Treatment was started with standard settings in both groups. Infants who met treatment failure criteria were switched to nasal intermittent mandatory ventilation for further positive-pressure support. A total of 60 infants were included in the study. Thirty of these infants were included in the nHFOV group and 30 were included in the nCPAP group. The median duration of non-invasive respiratory support was not significantly different between the two groups (21 h [IQR: 16-68] for nHFOV vs 15 h [IQR: 11-33] for nCPAP; p = 0.09). However, after adjusting for potential confounders, nHFOV was associated with a shorter duration of non-invasive respiratory support than nCPAP (adjusted mean difference: 16.3 h; 95% CI: 0.7 to 31.9; p = 0.04). nHFOV was well tolerated and did not increase the risk of complications. Conclusion: Our findings suggest that nHFOV is an effective and safe ventilation mode for late preterm and term neonates with TTN. Trial registry: Clinicaltrials.gov (NCT03006354). Date of registration: December 30, 2016. What is Known: • nHFOV is a ventilation model that has been increasingly used for the management of RDS. • TTN is one of the most common causes of neonatal respiratory distress. What is New: • nHFOV is associated with shorter duration of non-invasive respiratory support and duration of oxygen support. • nHFOV may be a safe and effective alternative to nCPAP for neonates with TTN.
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Affiliation(s)
- Emre Baldan
- Department of Pediatrics, Dortcelik Children's Hospital, Bursa, Turkey.
| | - Ipek Guney Varal
- Department of Pediatrics, Division of Neonatology, University of Health Sciences, Bursa Yuksek Ihtisas Teaching Hospital, Bursa, Turkey
| | - Pelin Dogan
- Department of Pediatrics, Division of Neonatology, University of Health Sciences, Bursa Yuksek Ihtisas Teaching Hospital, Bursa, Turkey
| | - Mehmet N Cizmeci
- Department of Pediatrics, Division of Neonatology, University of Health Sciences, Bursa Yuksek Ihtisas Teaching Hospital, Bursa, Turkey
- Department of Pediatrics, Division of Neonatology, University of Toronto, The Hospital for Sick Children, Toronto, ON, Canada
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20
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Gibbs KW, Forbes JL, Harrison KJ, Krall JT, Isenhart AA, Taylor SP, Martin RS, O'Connell NS, Bakhru RN, Palakshappa JA, Files DC. A Pragmatic Pilot Trial Comparing Patient-Triggered Adaptive Pressure Control to Patient-Triggered Volume Control Ventilation in Critically Ill Adults. Respir Care 2023; 68:1331-1339. [PMID: 36944477 PMCID: PMC10506635 DOI: 10.4187/respcare.10803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/14/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Patient-triggered adaptive pressure control (APC) continuous mandatory ventilation (CMV) (APC-CMV) has been widely adopted as an alternative ventilator mode to patient-triggered volume control (VC) CMV (VC-CMV). However, the comparative effectiveness of the 2 ventilator modes remains uncertain. We sought to explore clinical and implementation factors pertinent to a future definitive randomized controlled trial assessing APC-CMV versus VC-CMV as an initial ventilator mode strategy. The research objectives in our pilot trial tested clinician adherence and explored clinical outcomes. METHODS In a single-center pragmatic sequential cluster crossover pilot trial, we enrolled all eligible adults with acute respiratory failure requiring mechanical ventilation admitted during a 9-week period to the medical ICU. Two-week time epochs were assigned a priori in which subjects received either APC-CMV or VC-CMV The primary outcome of the trial was feasibility, defined as 80% of subjects receiving the assigned mode within 1 h of initiation of ICU ventilation. The secondary outcome was proportion of the first 24 h on the assigned mode. Finally, we surveyed clinician stakeholders to understand potential facilitators and barriers to conducting a definitive randomized trial. RESULTS We enrolled 137 subjects who received 152 discreet episodes of mechanical ventilation during time epochs assigned to APC-CMV (n = 61) and VC-CMV (n = 91). One hundred and thirty-one episodes were included in the prespecified primary outcome. One hundred and twenty-six (96%) received the assigned mode within the first hour of ICU admission (60 of 61 subjects assigned APC-CMV and 66 of 70 assigned VC-CMV). VC-CMV subjects spent a lower proportion of first 24 h (84% [95% CI 78-89]) on the assigned mode than APC-CMV recipients (95% [95% CI 91-100]). Mixed-methods analyses identified preconceived perceptions of subject comfort by clinicians and need for real-time education to address this concern. CONCLUSIONS In this pilot pragmatic, sequential crossover trial, unit-wide allocation to a ventilator mode was feasible and acceptable to clinicians.
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Affiliation(s)
- Kevin W Gibbs
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina.
| | - Jonathan L Forbes
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Kelsey J Harrison
- Department of Respiratory Care, Atrium Health Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Jennifer Tw Krall
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Aubrae A Isenhart
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Stephanie P Taylor
- Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Department of Internal Medicine, Wake Forest School of Medicine, Charlotte, North Carolina
| | - R Shayn Martin
- Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC, North Carolina
| | - Nathaniel S O'Connell
- Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Rita N Bakhru
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Jessica A Palakshappa
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - D Clark Files
- Department of Internal Medicine, Section on Pulmonary, Critical Care, Allergy, and Immunology, Wake Forest School of Medicine, Winston-Salem, North Carolina; and Critical Illness Injury and Recovery Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina
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21
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Lavizzari A, Zannin E, Klotz D, Dassios T, Roehr CC. State of the art on neonatal noninvasive respiratory support: How physiological and technological principles explain the clinical outcomes. Pediatr Pulmonol 2023; 58:2442-2455. [PMID: 37378417 DOI: 10.1002/ppul.26561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 05/26/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023]
Abstract
Noninvasive respiratory support has gained significant popularity in neonatal units because of its potential to reduce lung injury associated with invasive mechanical ventilation. To minimize lung injury, clinicians aim to apply for noninvasive respiratory support as early as possible. However, the physiological background and the technology behind such support modes are not always clear, and many open questions remain regarding the indications of use and clinical outcomes. This narrative review discusses the currently available evidence for various noninvasive respiratory support modes applied in Neonatal Medicine in terms of physiological effects and indications. Reviewed modes include nasal continuous positive airway pressure, nasal high-flow therapy, noninvasive high-frequency oscillatory ventilation, nasal intermittent positive pressure ventilation (NIPPV), synchronized NIPPV and noninvasive neurally adjusted ventilatory assist. To enhance clinicians' awareness of each support mode's strengths and limitations, we summarize technical features related to the functioning mechanisms of devices and the physical properties of the interfaces commonly used for providing noninvasive respiratory support to neonates. We finally address areas of current controversy and suggest possible areas of research for implementing noninvasive respiratory support in neonatal intensive care units.
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Affiliation(s)
- Anna Lavizzari
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit, Milan, Italy
| | - Emanuela Zannin
- Fondazione Monza e Brianza per il Bambino e la sua Mamma, Monza, Italy
| | - Daniel Klotz
- Center for Pediatrics, Division of Neonatology, Faculty of Medicine, Medical Center-University of Freiburg, Freiburg, Germany
| | - Theodore Dassios
- Neonatal Intensive Care Centre, King's College Hospital NHS Foundation Trust, London, UK
| | - Charles C Roehr
- Faculty of Health Sciences, University of Bristol, Bristol, UK
- National Perinatal Epidemiology Unit, Clinical Trials Unit, Nuffield Department of Population Health, Medical Sciences Division, University of Oxford, Oxford, UK
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22
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Zores C, Zana-Taïeb E, Caeymaex L, Fumeaux CF, Kuhn P. French Neonatal Society issues recommendations on preventing nasal injuries in preterm newborn infants during non-invasive respiratory support. Acta Paediatr 2023; 112:1849-1859. [PMID: 37222380 DOI: 10.1111/apa.16857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/11/2023] [Accepted: 05/23/2023] [Indexed: 05/25/2023]
Abstract
AIM To issue practical recommendations regarding the optimal care of nasal skin when non-invasive ventilation support is used. METHODS We performed a systematic search of PubMed to identify relevant papers published in English or French through December 2019. Different grades of evidence were evaluated. RESULTS Forty-eight eligible studies. The incidence in preterm infants was high. The lesions were more frequent for preterm infants born under 30 weeks of gestational age and/or below 1500 g. The lesion was most often located on the skin of the nose but could also be found on the intranasal mucous membranes or elsewhere on the face. Nasal injuries appear early after the beginning of non-invasive ventilation at a mean of 2-3 days for cutaneous lesions and eight or nine for intranasal lesions. The most effective strategies to prevent trauma are the use of a hydrocolloid at the beginning of the support ventilation, the preferential use of a mask and the rotation of ventilation interfaces. CONCLUSION Nasal injuries with continuous positive airway pressure treatment in preterm newborn infants were frequent and can induce pain, discomfort and sequelae. The immature skin of preterm newborn infants needs specific attention from trained caregivers and awareness by parents.
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Affiliation(s)
- Claire Zores
- Médecine et Réanimation du Nouveau - né, Service de Pédiatrie 2, Pôle Medico - Chirurgical Pédiatrique Hôpital de Hautepierre, Centre Hospitalier Universitaire de Strasbourg, Strasbourg, France
- INCI, UPR 3212, CNRS and University of Strasbourg, Strasbourg, France
| | - Elodie Zana-Taïeb
- Department of Neonatal Medicine, Cochin-Port Royal Hospital, Paris, France
- U955 INSERM, Université de Paris, Créteil, France
| | - Laurence Caeymaex
- Neonatal Intensive Care Unit Centre Hospitalier Intercommunal Creteil, Creteil, France
- Faculty of Health, University Paris East Creteil, Val de Marne, Creteil, France
| | - Céline Fischer Fumeaux
- Department of Mother-Woman-Child, Clinic of Neonatology, Lausanne University Hospital, Lausanne, Switzerland
- Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Pierre Kuhn
- Médecine et Réanimation du Nouveau - né, Service de Pédiatrie 2, Pôle Medico - Chirurgical Pédiatrique Hôpital de Hautepierre, Centre Hospitalier Universitaire de Strasbourg, Strasbourg, France
- INCI, UPR 3212, CNRS and University of Strasbourg, Strasbourg, France
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Bellini C, Boccardo F, Bellini T. Effect of positive pressure ventilation on lymphatic flow in pediatric patients. J Perinatol 2023; 43:1082. [PMID: 37005453 DOI: 10.1038/s41372-023-01651-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/02/2023] [Accepted: 03/15/2023] [Indexed: 04/04/2023]
Affiliation(s)
- Carlo Bellini
- Neonatal Intensive Care Unit, Department Mother&Child, IRCCS Giannina Gaslini, Genoa, Italy.
| | - Francesco Boccardo
- Department of Surgery, Unit of Lymphatic Surgery and Microsurgery, San Martino Hospital, University of Genoa, Genoa, Italy
| | - Tommaso Bellini
- Emergency Department, IRCCS Giannina Gaslini Institute, Genoa, Italy
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Namdev S, Tarafdar O, Fusch G, Beck J, Mukerji A. Pressure transmission and electrical diaphragm activity in preterm infants during nasal intermittent positive pressure ventilation-an exploratory prospective physiological study. J Perinatol 2023; 43:1004-1006. [PMID: 37138164 DOI: 10.1038/s41372-023-01686-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/05/2023]
Affiliation(s)
- Sunita Namdev
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Oishika Tarafdar
- Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Gerhard Fusch
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Jennifer Beck
- Keenan Research Centre for Biomedical Science of St. Michael's Hospital; Department of Critical Care, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B1W8, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
- Member, Institute for Biomedical Engineering and Science Technology (iBEST) at Ryerson University and St-Michael's Hospital, Toronto, ON, Canada
| | - Amit Mukerji
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada.
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Khan S, Smith CL, Pinto EM, Taha DK, Gibbs KA, Rosenblatt SA, Dori Y. Effect of positive pressure ventilation on lymphatic flow in pediatric patients. J Perinatol 2023; 43:1079-1081. [PMID: 36434049 PMCID: PMC10400414 DOI: 10.1038/s41372-022-01563-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 10/24/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Sarah Khan
- Department of Pediatrics, Einstein Medical Center, Philadelphia, PA, 19141, USA
| | - Christopher L Smith
- Jill and Mark Fishman Center for Lymphatic Disorders, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Division of Cardiology, The Children's Hospital of Philadelphia and Department of Pediatrics Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Erin M Pinto
- Jill and Mark Fishman Center for Lymphatic Disorders, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Dalal K Taha
- Division of Neonatology, The Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Kathleen A Gibbs
- Division of Neonatology, The Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Samuel A Rosenblatt
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia and Department of Pediatrics Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yoav Dori
- Jill and Mark Fishman Center for Lymphatic Disorders, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA.
- Division of Cardiology, The Children's Hospital of Philadelphia and Department of Pediatrics Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Zhao J, Wu R, Liu W, Li M, Wang W, Li L. Effect of the change of mechanical ventilation mode on cerebral oxygen saturation level in neonates. BMC Pediatr 2023; 23:231. [PMID: 37165309 PMCID: PMC10170683 DOI: 10.1186/s12887-023-04036-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/26/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND This study aimed to apply near-infrared spectroscopy (NIRS) to monitor cerebral oxygen saturation (SrO2) level in neonates before and after the change of mechanical ventilation mode, and thus, the effects of the change of mechanical ventilator mode on SrO2 level in neonates were assessed. METHODS This trial was designed as an observational study .A total of 70 neonates who were admitted to the Department of Neonatology of Beijing Luhe Hospital Affiliated to Capital Medical University (Beijing, China) between September 2019 and October 2021 and required respiratory support were included. The variations of SrO2 level before and after the change of mechanical ventilation mode, including changing from Synchronized intermittent mandatory ventilation (SIMV) to noninvasive ventilation (NIV, group 1), and from NIV to oxygen inhalation (group 2), were monitored by Enginmed EGOS-600 A. The changes of SrO2 level at 30 min before and 1 h after the change of ventilation mode were compared between the two groups. RESULTS The SrO2 level in the group 1 30 min before, as well as 10 min, 30 min, and 1 h after the change of ventilation mode was 62.54 ± 3.36%, 65.43 ± 3.98%, 64.38 ± 4.23%, and 64.63 ± 3.71%, respectively. The SrO2 level at all the points after the change of ventilation mode increased compared with 30 min before the change (P < 0.05). The SrO2 level in the group 2 at each time point was 62.67 ± 4.69%, 64.61 ± 5.00%, 64.04 ± 4.48%, and 64.55 ± 4.32%, respectively. Compared with 30 min before ventilator weaning, the SrO2 level at all the points after ventilator weaning increased (P < 0.05). Peak inspiratory pressure (PIP) excluding Nasal Continuous Positive Airway Pressure (NCPAP)) in group 1 was lower than that before extubation, and the difference was statistically significant (P = 0) (Table 7). CONCLUSIONS SrO2 level showed an increasing trend after the change of ventilation mode, and the increase of SrO2 level at 10 min after the change of ventilation mode was the most prominent. From SIMV to NIV, increased SrO2 levels may be associated with decreased PIP.
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Affiliation(s)
- Jingjing Zhao
- Children's Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Rong Wu
- Yangzhou University Medical College, Neonatal Medical Center, Huai'an Maternity and Child Healthcare Hospital, N.104 South Renmin Road, Huai'an, 223002, China
| | - Wei Liu
- Children's Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Manman Li
- Children's Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Wei Wang
- Children's Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Lihua Li
- Children's Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
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师 红, 梁 克, 安 丽, 张 冰, 张 成. [Efficacy of noninvasive high-frequency oscillatory ventilation versus nasal intermittent positive pressure ventilation as post-extubation respiratory support in preterm infants: a Meta analysis]. Zhongguo Dang Dai Er Ke Za Zhi 2023; 25:295-301. [PMID: 36946166 PMCID: PMC10032070 DOI: 10.7499/j.issn.1008-8830.2209121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/01/2023] [Indexed: 03/23/2023]
Abstract
OBJECTIVES To systematically evaluate the efficacy and safety of noninvasive high-frequency oscillatory ventilation (NHFOV) versus nasal intermittent positive pressure ventilation (NIPPV) as post-extubation respiratory support in preterm infants. METHODS China National Knowledge Infrastructure, Wanfang Data, Chinese Journal Full-text Database, China Biology Medicine disc, PubMed, Web of Science, and the Cochrane Library were searched for articles on NHFOV and NIPPV as post-extubation respiratory support in preterm infants published up to August 31, 2022. RevMan 5.4 software and Stata 17.0 software were used for a Meta analysis to compare related indices between the NHFOV and NIPPV groups, including reintubation rate within 72 hours after extubation, partial pressure of carbon dioxide (PCO2) at 6-24 hours after switch to noninvasive assisted ventilation, and the incidence rates of bronchopulmonary dysplasia (BPD), air leak, nasal damage, periventricular leukomalacia (PVL), intraventricular hemorrhage (IVH), and retinopathy of prematurity (ROP). RESULTS A total of 9 randomized controlled trials were included. The Meta analysis showed that compared with the NIPPV group, the NHFOV group had significantly lower reintubation rate within 72 hours after extubation (RR=0.67, 95%CI: 0.52-0.88, P=0.003) and PCO2 at 6-24 hours after switch to noninvasive assisted ventilation (MD=-4.12, 95%CI: -6.12 to -2.13, P<0.001). There was no significant difference between the two groups in the incidence rates of complications such as BPD, air leak, nasal damage, PVL, IVH, and ROP (P>0.05). CONCLUSIONS Compared with NIPPV, NHFOV can effectively remove CO2 and reduce the risk of reintubation, without increasing the incidence of complications such as BPD, air leak, nasal damage, PVL, and IVH, and therefore, it can be used as a sequential respiratory support mode for preterm infants after extubation.
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Abstract
Intermittent mandatory ventilation (IMV) is one kind of breath sequence used to classify a mode of ventilation. IMV is defined as the ability for spontaneous breaths (patient triggered and patient cycled) to exist between mandatory breaths (machine triggered or machine cycled). Over the course of more than a century, IMV has evolved into 4 distinct varieties, each with its own advantages and disadvantages in serving the goals of mechanical ventilation (ie, safety, comfort, and liberation). The purpose of this paper is to describe the evolution of IMV, review relevant supporting evidence, and discuss the rationales for each of the 4 varieties. Also included is a brief overview of the background information required for a proper perspective of the purpose and design of the innovations. Understanding these different forms of IMV is essential to recognizing the similarities and differences among many dozens of different modes of ventilation. This recognition is important for clinical application, education of caregivers, and research in mechanical ventilation.
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Affiliation(s)
- Robert L Chatburn
- Enterprise Respiratory Care Research, Cleveland Clinic, Cleveland, Ohio; and Department of Medicine, Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio.
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Sattari S, Mariano CA, Kuschner WG, Taheri H, Bates JHT, Eskandari M. Positive- and Negative-Pressure Ventilation Characterized by Local and Global Pulmonary Mechanics. Am J Respir Crit Care Med 2023; 207:577-586. [PMID: 36194677 PMCID: PMC10870900 DOI: 10.1164/rccm.202111-2480oc] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
Rationale: There is continued debate regarding the equivalency of positive-pressure ventilation (PPV) and negative-pressure ventilation (NPV). Resolving this question is important because of the different practical ramifications of the two paradigms. Objectives: We sought to investigate the parallel between PPV and NPV and determine whether or not these two paradigms cause identical ventilation profiles by analyzing the local strain mechanics when the global tidal volume (Vt) and inflation pressure was matched. Methods: A custom-designed electromechanical apparatus was used to impose equal global loads and displacements on the same ex vivo healthy porcine lung using PPV and NPV. High-speed high-resolution cameras recorded local lung surface deformations and strains in real time, and differences between PPV and NPV global energetics, viscoelasticity, as well as local tissue distortion were assessed. Measurements and Main Results: During initial inflation, NPV exhibited significantly more bulk pressure-volume compliance than PPV, suggestive of earlier lung recruitment. NPV settings also showed reduced relaxation, hysteresis, and energy loss compared with PPV. Local strain trends were also decreased in NPV, with reduced tissue distortion trends compared with PPV, as revealed through analysis of tissue anisotropy. Conclusions: Apparently, contradictory previous studies are not mutually exclusive. Equivalent changes in transpulmonary pressures in PPV and NPV lead to the same changes in lung volume and pressures, yet local tissue strains differ between PPV and NPV. Although limited to healthy specimens and ex vivo experiments in the absence of a chest cavity, these results may explain previous reports of better oxygenation and less lung injury in NPV.
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Affiliation(s)
| | | | - Ware G. Kuschner
- Medical Service, Veterans Affairs Palo Alto Health Care System, Division of Pulmonary, Allergy & Critical Care Medicine, Stanford University, Stanford, California; and
| | | | - Jason H. T. Bates
- Department of Medicine, University of Vermont Larner College of Medicine, Burlington, Vermont
| | - Mona Eskandari
- Department of Mechanical Engineering
- BREATHE Center, School of Medicine, and
- Department of Bioengineering, University of California Riverside, Riverside, California
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30
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Durrmeyer X, Decobert F. Neurally-adjusted ventilation superior to nasal CAP in preventing extubation failure. J Pediatr 2023; 253:310-313. [PMID: 36931784 DOI: 10.1016/j.jpeds.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 03/19/2023]
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Bruschettini M, Hassan KO, Romantsik O, Banzi R, Calevo MG, Moresco L. Interventions for the management of transient tachypnoea of the newborn - an overview of systematic reviews. Cochrane Database Syst Rev 2022; 2:CD013563. [PMID: 35199848 PMCID: PMC8867535 DOI: 10.1002/14651858.cd013563.pub2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Transient tachypnoea of the newborn (TTN) is characterised by tachypnoea and signs of respiratory distress. It is caused by delayed clearance of lung fluid at birth. TTN typically appears within the first two hours of life in term and late preterm newborns. Although it is usually a self-limited condition, admission to a neonatal unit is frequently required for monitoring, the provision of respiratory support, and drugs administration. These interventions might reduce respiratory distress during TTN and enhance the clearance of lung liquid. The goals are reducing the effort required to breathe, improving respiratory distress, and potentially shortening the duration of tachypnoea. However, these interventions might be associated with harm in the infant. OBJECTIVES The aim of this overview was to evaluate the benefits and harms of different interventions used in the management of TTN. METHODS We searched the Cochrane Database of Systematic Reviews on 14 July 2021 for ongoing and published Cochrane Reviews on the management of TTN in term (> 37 weeks' gestation) or late preterm (34 to 36 weeks' gestation) infants. We included all published Cochrane Reviews assessing the following categories of interventions administered within the first 48 hours of life: beta-agonists (e.g. salbutamol and epinephrine), corticosteroids, diuretics, fluid restriction, and non-invasive respiratory support. The reviews compared the above-mentioned interventions to placebo, no treatment, or other interventions for the management of TTN. The primary outcomes of this overview were duration of tachypnoea and the need for mechanical ventilation. Two overview authors independently checked the eligibility of the reviews retrieved by the search and extracted data from the included reviews using a predefined data extraction form. Any disagreements were resolved by discussion with a third overview author. Two overview authors independently assessed the methodological quality of the included reviews using the AMSTAR 2 (A MeaSurement Tool to Assess systematic Reviews) tool. We used the GRADE approach to assess the certainty of evidence for effects of interventions for TTN management. As all of the included reviews reported summary of findings tables, we extracted the information already available and re-graded the certainty of evidence of the two primary outcomes to ensure a homogeneous assessment. We provided a narrative summary of the methods and results of each of the included reviews and summarised this information using tables and figures. MAIN RESULTS We included six Cochrane Reviews, corresponding to 1134 infants enrolled in 18 trials, on the management of TTN in term and late preterm infants, assessing salbutamol (seven trials), epinephrine (one trial), budesonide (one trial), diuretics (two trials), fluid restriction (four trials), and non-invasive respiratory support (three trials). The quality of the included reviews was high, with all of them fulfilling the critical domains of the AMSTAR 2. The certainty of the evidence was very low for the primary outcomes, due to the imprecision of the estimates (few, small included studies) and unclear or high risk of bias. Salbutamol may reduce the duration of tachypnoea compared to placebo (mean difference (MD) -16.83 hours, 95% confidence interval (CI) -22.42 to -11.23, 2 studies, 120 infants, low certainty evidence). We did not identify any review that compared epinephrine or corticosteroids to placebo and reported on the duration of tachypnoea. However, one review reported on "trend of normalisation of respiratory rate", a similar outcome, and found no differences between epinephrine and placebo (effect size not reported). The evidence is very uncertain regarding the effect of diuretics compared to placebo (MD -1.28 hours, 95% CI -13.0 to 10.45, 2 studies, 100 infants, very low certainty evidence). We did not identify any review that compared fluid restriction to standard fluid rates and reported on the duration of tachypnoea. The evidence is very uncertain regarding the effect of continuous positive airway pressure (CPAP) compared to free-flow oxygen therapy (MD -21.1 hours, 95% CI -22.9 to -19.3, 1 study, 64 infants, very low certainty evidence); the effect of nasal high-frequency (oscillation) ventilation (NHFV) compared to CPAP (MD -4.53 hours, 95% CI -5.64 to -3.42, 1 study, 40 infants, very low certainty evidence); and the effect of nasal intermittent positive pressure ventilation (NIPPV) compared to CPAP on duration of tachypnoea (MD 4.30 hours, 95% CI -19.14 to 27.74, 1 study, 40 infants, very low certainty evidence). Regarding the need for mechanical ventilation, the evidence is very uncertain for the effect of salbutamol compared to placebo (risk ratio (RR) 0.60, 95% CI 0.13 to 2.86, risk difference (RD) 10 fewer, 95% CI 50 fewer to 30 more per 1000, 3 studies, 254 infants, very low certainty evidence); the effect of epinephrine compared to placebo (RR 0.67, 95% CI 0.08 to 5.88, RD 70 fewer, 95% CI 460 fewer to 320 more per 1000, 1 study, 20 infants, very low certainty evidence); and the effect of corticosteroids compared to placebo (RR 0.52, 95% CI 0.05 to 5.38, RD 40 fewer, 95% CI 170 fewer to 90 more per 1000, 1 study, 49 infants, very low certainty evidence). We did not identify a review that compared diuretics to placebo and reported on the need for mechanical ventilation. The evidence is very uncertain regarding the effect of fluid restriction compared to standard fluid administration (RR 0.73, 95% CI 0.24 to 2.23, RD 20 fewer, 95% CI 70 fewer to 40 more per 1000, 3 studies, 242 infants, very low certainty evidence); the effect of CPAP compared to free-flow oxygen (RR 0.30, 95% CI 0.01 to 6.99, RD 30 fewer, 95% CI 120 fewer to 50 more per 1000, 1 study, 64 infants, very low certainty evidence); the effect of NIPPV compared to CPAP (RR 4.00, 95% CI 0.49 to 32.72, RD 150 more, 95% CI 50 fewer to 350 more per 1000, 1 study, 40 infants, very low certainty evidence); and the effect of NHFV versus CPAP (effect not estimable, 1 study, 40 infants, very low certainty evidence). Regarding our secondary outcomes, duration of hospital stay was the only outcome reported in all of the included reviews. One trial on fluid restriction reported a lower duration of hospitalisation in the restricted-fluids group, but with very low certainty of evidence. The evidence was very uncertain for the effects on secondary outcomes for the other five reviews. Data on potential harms were scarce, as all of the trials were underpowered to detect possible increases in adverse events such as pneumothorax, arrhythmias, and electrolyte imbalances. No adverse effects were reported for salbutamol; however, this medication is known to carry a risk of tachycardia, tremor, and hypokalaemia in other settings. AUTHORS' CONCLUSIONS This overview summarises the evidence from six Cochrane Reviews of randomised trials regarding the effects of postnatal interventions in the management of TTN. Salbutamol may reduce the duration of tachypnoea slightly. We are uncertain as to whether salbutamol reduces the need for mechanical ventilation. We are uncertain whether epinephrine, corticosteroids, diuretics, fluid restriction, or non-invasive respiratory support reduces the duration of tachypnoea and the need for mechanical ventilation, due to the extremely limited evidence available. Data on harms were lacking.
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Affiliation(s)
- Matteo Bruschettini
- Department of Clinical Sciences Lund, Paediatrics, Lund University, Skåne University Hospital, Lund, Sweden
- Cochrane Sweden, Lund University, Skåne University Hospital, Lund, Sweden
| | | | - Olga Romantsik
- Department of Clinical Sciences Lund, Paediatrics, Lund University, Skåne University Hospital, Lund, Sweden
| | - Rita Banzi
- Center for Health Regulatory Policies, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Maria Grazia Calevo
- Epidemiology, Biostatistics Unit, IRCCS, Istituto Giannina Gaslini, Genoa, Italy
| | - Luca Moresco
- Pediatric and Neonatology Unit, Ospedale San Paolo, Savona, Italy
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Vines DL, Tangney C, Meksraityte E, Scott JB, Fogg L, Burd J, Yoder MA, Gurka DP. A Scoring Tool That Identifies the Need for Positive-Pressure Ventilation and Determines the Effectiveness of Allocated Respiratory Therapy. Respir Care 2022; 67:167-176. [PMID: 34815327 PMCID: PMC9993934 DOI: 10.4187/respcare.08555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Hospital-acquired pneumonia (HAP) and the need for positive-pressure ventilation (PPV) are significant postoperative pulmonary complications (PPCs) that increase patients' lengths of stay, mortality, and costs. Current tools used to predict PPCs use nonmodifiable preoperative factors; thus, they cannot assess provided respiratory therapy effectiveness. The Respiratory Assessment and Allocation of Therapy (RAAT) tool was created to identify HAP and the need for PPV and assist in assigning respiratory therapies. This study aimed to assess the RAAT tool's reliability and validity and determine if allocated respiratory procedures based on scores prevented HAP and the need for PPV. METHODS Electronic medical record data for nonintubated surgical ICU subjects scored with the RAAT tool were pulled from July 1, 2015-January 31, 2016, using a consecutive sampling technique. Sensitivity, specificity, and jackknife analysis were generated based on total RAAT scores. A unit-weighted analysis and mean differences of consecutive RAAT scores were analyzed with RAAT total scores ≥ 10 and the need for PPV. RESULTS The first or second RAAT score of ≤ 5 (unlikely to receive PPV) and ≥ 10 (likely to receive PPV) provided a sensitivity of 0.833 and 0.783 and specificity of 0.761 and 0.804, respectively. Jackknifed sensitivity and specificity for identified cutoffs above were 0.800-0.917 and 0.775-0.739 for the first RAAT score and 0.667-0.889 and 0.815-0.79 for the second RAAT score. The initial RAAT scores of ≥ 10 predicted the need for PPV (P < .001) and was associated with higher in-hospital mortality (P < .001). Mean differences between consecutive RAAT scores revealed decreasing scores did not need PPV. CONCLUSIONS The RAAT scoring tool demonstrated an association with the need for PPV using modifiable factors and appears to provide a quantitative method of determining if allocated respiratory therapy is effective.
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Affiliation(s)
| | | | | | | | - Louis Fogg
- Rush University Medical Center, Chicago, Illinois
| | - Jacob Burd
- Rush University Medical Center, Chicago, Illinois
| | - Mark A Yoder
- Rush University Medical Center, Chicago, Illinois
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Abstract
Avoiding MV is a critical goal in neonatal respiratory care. Different modes of noninvasive respiratory support beyond nasal CPAP, such as nasal intermittent positive pressure ventilation (NIPPV) and synchronized NIPPV (SNIPPV), may further reduce intubation rates. SNIPPV offers consistent benefits over nonsynchronized techniques such as a more efficient positive pressure transmission to the lung, an effective increase in transpulmonary pressure during ventilation, and a better stabilization of the chest wall during inspiration. This review discusses mechanisms of action, benefits and limitations of synchronized noninvasive ventilation, describes the different modes of synchronization, and analyzes properties and clinical results.
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Affiliation(s)
- Corrado Moretti
- Department of Paediatrics, Policlinico Umberto I, Sapienza University of Rome, Viale Regina Elena 324, Rome 00185, Italy
| | - Camilla Gizzi
- Paediatric and Neonatology Unit, "Sandro Pertini" Hospital, Via Monti Tiburtini 385, Rome 00157, Italy.
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Thind GS, Hatipoğlu U, Chatburn RL, Krishnan S, Duggal A, Mireles-Cabodevila E. Evaluation of High-Frequency Oscillatory Ventilation as a Rescue Strategy in Respiratory Failure. Respir Care 2021; 66:1746-1751. [PMID: 34429352 PMCID: PMC9993534 DOI: 10.4187/respcare.08936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The use of high-frequency oscillatory ventilation (HFOV) is backed by sound physiologic rationale, but clinical data on the elective use of HFOV have been largely disappointing. Nonetheless, HFOV is still occasionally used as a rescue mode in patients with severe hypoxemia. The evidence that supports this practice is sparse. METHODS This was a retrospective single-center analysis that involved subjects admitted to the medical ICU at Cleveland Clinic, Cleveland, Ohio. We included all adult patients (ages > 18 y) who received rescue HFOV between January 1, 2010, and December 31, 2018, and analyzed their clinical outcomes. RESULTS A total of 48 subjects were included in the analysis. The most common primary diagnosis was pneumonia (n = 33 [68.8%]), followed by aspiration (n = 6 [12.5%]) and diffuse alveolar hemorrhage (n = 2 [4.2%]). Switching to HFOV improved oxygenation but also increased vasopressor requirements at 3 h. The mortality rate of the study population was 92% (44/48). CONCLUSIONS Our study did not support utilization of HFOV as a "last-ditch" rescue measure in subjects with respiratory failure. The delayed timing of HFOV initiation and its detrimental hemodynamic effects are among the potential reasons for the high mortality rate.
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Affiliation(s)
| | - Umur Hatipoğlu
- Department of Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Robert L Chatburn
- Department of Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Sudhir Krishnan
- Department of Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Abhijit Duggal
- Department of Critical Care, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
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Abstract
BACKGROUND Cohort studies have suggested that nasal continuous positive airway pressure (CPAP) starting in the immediate postnatal period before the onset of respiratory disease (prophylactic CPAP) may be beneficial in reducing the need for intubation and intermittent positive pressure ventilation (IPPV), and in preventing bronchopulmonary dysplasia (BPD), in preterm or low birth weight infants. OBJECTIVES To determine if prophylactic nasal CPAP (started within the first 15 minutes) or very early nasal CPAP regardless of respiratory status (started within the first hour of life), reduces the use of mechanical ventilation and the incidence of bronchopulmonary dysplasia without any adverse effects in preterm infants. SEARCH METHODS A comprehensive search was run on 6 November 2020 in the Cochrane Central Register of Controlled Trials (CENTRAL via CRS Web) and MEDLINE via Ovid. We also searched the reference lists of retrieved studies. SELECTION CRITERIA We included all randomised controlled trials (RCTs) and quasi-RCTs in preterm infants (under 37 weeks of gestation). We included trials if they compared prophylactic nasal CPAP (started within the first 15 minutes) or very early nasal CPAP (started within the first hour of life) in infants with minimal signs of respiratory distress with 'supportive care', such as supplemental oxygen therapy, standard nasal cannula, or mechanical ventilation. We excluded studies where prophylactic CPAP was compared with CPAP along with co-interventions. DATA COLLECTION AND ANALYSIS We used the standard methods of Cochrane Neonatal, including independent study selection, assessment of trial quality, and extraction of data by two review authors. MAIN RESULTS We included eight trials (seven from the previous version of the review and one new study), recruiting 3201 babies, in the meta-analysis. Four trials, involving 765 babies, compared CPAP with supportive care, and three trials (2364 babies) compared CPAP with mechanical ventilation. One trial (72 babies) compared prophylactic CPAP with very early CPAP. Apart from a lack of blinding of the intervention, we judged seven studies to have a low risk of bias. However, one study had a high risk of selection bias. Prophylactic or very early CPAP compared to supportive care There may be a reduction in failed treatment (risk ratio (RR) 0.6, 95% confidence interval (CI) 0.49 to 0.74; risk difference (RD) -0.16, 95% CI -0.34 to 0.02; 4 studies, 765 infants; very low certainty evidence). CPAP possibly reduces BPD at 36 weeks (RR 0.76, 95% CI 0.51 to 1.14; 3 studies, 683 infants, moderate certainty evidence); there may be little or no difference in death (RR 1.04, 95% CI 0.56 to 1.93; 4 studies, 765 infants; moderate certainty evidence). Prophylactic CPAP may reduce the composite outcome of death or BPD (RR 0.69, 95% CI 0.40 to 1.19; 1 study, 256 infants; low certainty evidence). There may be no difference in pulmonary air leak (pneumothorax) (RR 0.75, 95% CI 0.35 to 1.16; 3 studies, 568 infants; low certainty evidence), or intraventricular haemorrhage (IVH) Grade 3 or 4 (RR 0.96, 95% CI 0.39 to 2.37; 2 studies, 486 infants; moderate certainty evidence). Neurodevelopmental impairment was not reported in any of the studies. Prophylactic or very early CPAP compared to mechanical ventilation There was probably a reduction in the incidence of BPD at 36 weeks (RR 0.89, 95% CI 0.8 to 0.99; RD -0.04, 95% CI -0.08 to 0.00; 3 studies, 2150 infants; moderate certainty evidence); and death or BPD (RR 0.89, 95% CI 0.81 to 0.97; RD -0.05, 95% CI -0.09 to 0.01; 3 studies, 2358 infants; moderate certainty evidence). There was also probably a reduction in the need for mechanical ventilation (failed treatment) (RR 0.49, 95% CI 0.45 to 0.54; RD -0.50, 95% CI -0.54 to -0.45; 2 studies, 1042 infants; moderate certainty evidence). There was probably a reduction in the incidence of death (RR 0.82, 95% CI 0.66 to 1.03; 3 studies, 2358 infants; moderate certainty evidence); pulmonary air leak (pneumothorax) (RR 1.24, 95% CI 0.91 to 1.69; 3 studies, 2357 infants; low certainty evidence); and IVH Grade 3 or 4 (RR 1.09, 95% CI 0.86 to 1.39; 3 studies, 2301 infants; moderate certainty evidence). One study in this comparison reported that there was probably little or no difference between the groups in the incidence of neurodevelopmental impairment at 18 to 22 months (RR 0.91, 95% CI 0.62 to 1.32; 976 infants; moderate certainty evidence). Prophylactic CPAP compared with very early CPAP There was one study in this comparison. We are very uncertain whether there is any difference in the incidence of BPD (RR 0.5, 95% CI 0.05 to 5.27; very low certainty evidence). The combined outcome of death and BPD was not reported, and failed treatment was reported but without data. There may have been little to no effect on death (RR 0.75, 95% CI 0.29 to1.94; 1 study, 72 infants; very low certainty evidence). Intraventricular haemorrhage Grade 3 or 4 and neurodevelopmental outcomes were not reported in this study. Pulmonary air leak (pneumothorax) was reported in this study, but there were no events in either group. AUTHORS' CONCLUSIONS For preterm and very preterm infants, there is insufficient evidence to evaluate prophylactic CPAP compared to oxygen therapy and other supportive care. When compared to mechanical ventilation, prophylactic nasal CPAP in very preterm infants reduces the incidence of BPD, the combined outcome of death and BPD, and mechanical ventilation. There is probably no difference in neurodevelopmental impairment at 18 to 22 months of age. When prophylactic CPAP is compared to early CPAP, we are very uncertain about whether there is any difference between prophylactic and very early CPAP. There is no information about the effect of prophylactic or very early CPAP in late preterm infants. There is one study awaiting classification.
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Affiliation(s)
- Prema Subramaniam
- Paediatric Department, Mount Isa Base Hospital, Mount Isa, Australia
| | - Jacqueline J Ho
- Department of Paediatrics, RCSI & UCD Malaysia Campus (formerly Penang Medical College), George Town, Malaysia
| | - Peter G Davis
- Newborn Research Centre and Neonatal Services, The Royal Women's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Australia
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Solanki SL. Comment on: A simple method against spread of COVID-19 when using a supraglottic airway for intermittent positive pressure ventilation during general anesthesia. Minerva Anestesiol 2021; 87:618-619. [PMID: 33331756 DOI: 10.23736/s0375-9393.20.15272-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sohan L Solanki
- Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India -
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Casali D. Influence of ventilatory strategies on outcomes and length of hospital stay: assist control and synchronized intermittent mandatory ventilation modes. Intern Emerg Med 2021; 16:263-265. [PMID: 33078223 PMCID: PMC7571533 DOI: 10.1007/s11739-020-02527-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 09/30/2020] [Indexed: 11/04/2022]
Affiliation(s)
- Diego Casali
- Cardiac Surgery Intensive Care Unit, Smidt Heart Institute, Cedars Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA, 90048, USA.
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de Godoi TB, Marson FAL, Palamim CVC, Cannonieri-Nonose GC. Influence of ventilatory strategies on outcomes and length of hospital stay: assist-control and synchronized intermittent mandatory ventilation modes. Intern Emerg Med 2021; 16:409-418. [PMID: 32681412 PMCID: PMC7366557 DOI: 10.1007/s11739-020-02444-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 07/09/2020] [Indexed: 11/24/2022]
Abstract
The use of synchronized intermittent mandatory ventilation with pressure support ventilation (SIMV + PSV) mode has been discontinued. This study analyzed the association between medical outcomes related to the use of assist-control (A/C) and SIMV + PSV in an intensive care unit. In this observational and retrospective study, modes of ventilation and medical data were collected from electronic medical records for three consecutive years and were related to medical outcomes (mortality), duration of mechanical ventilation, length of hospital stay and the need for tracheostomy. Participants were divided into groups according to the modes of ventilation: A/C and SIMV + PSV. Statistical analyses were performed in the R environment. Alpha = 0.05. The using chi-square, Fisher's exact, Mann-Whitney and Kruskal-Wallis tests were used. 345 adult participants were included; 211/345 (61.16%) were males. Of the participants, 151/345 (43.77%) were on SIMV + PSV and 194/345 (56.23%) were on A/C. The comparative analysis between the modes of ventilation showed no significant differences in length of hospital stay (p = 0.675), duration of mechanical ventilation (p = 0.952), mortality (p = 0.241), failed extubation (p = 0.411) and the need for tracheostomy (p = 0.301). SIMV + PSV as a mode of ventilation showed similar statistical results to the A/C mode, when compared to analyzed medical outcomes.
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Affiliation(s)
- Thais Bruno de Godoi
- Multiprofessional Internship Program in Adult Intensive Healthcare, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
| | - Fernando Augusto Lima Marson
- Laboratory of Human and Medical Genetics, Postgraduate Program in Health Sciences, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
| | - Camila Vantini Capasso Palamim
- Multiprofessional Internship Program in Adult Intensive Healthcare, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
- Laboratory of Human and Medical Genetics, Postgraduate Program in Health Sciences, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
- São Francisco University Hospital in Providência de Deus, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
| | - Gianna Carla Cannonieri-Nonose
- Multiprofessional Internship Program in Adult Intensive Healthcare, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
- Course of Physiotherapy, São Francisco University, Avenida São Francisco de Assis, 218, Jardim São José, Bragança Paulista, São Paulo, CEP 12916-900 Brazil
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Volsko TA, Parker SW, Deakins K, Walsh BK, Fedor KL, Valika T, Ginier E, Strickland SL. AARC Clinical Practice Guideline: Management of Pediatric Patients With Tracheostomy in the Acute Care Setting. Respir Care 2021; 66:144-155. [PMID: 33380501 PMCID: PMC9993824 DOI: 10.4187/respcare.08137] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Children requiring a tracheostomy to maintain airway patency or to facilitate long-term mechanical ventilatory support require comprehensive care and committed, trained, direct caregivers to manage their complex needs safely. These guidelines were developed from a comprehensive review of the literature to provide guidance for the selection of the type of tracheostomy tube (cuffed vs uncuffed), use of communication devices, implementation of daily care bundles, timing of first tracheostomy change, type of humidification used (active vs passive), timing of oral feedings, care coordination, and routine cleaning. Cuffed tracheostomy tubes should only be used for positive-pressure ventilation or to prevent aspiration. Manufacturer guidelines should be followed for cuff management and tracheostomy tube hygiene. Daily care bundles, skin care, and the use of moisture-wicking materials reduce device-associated complications. Tracheostomy tubes may be safely changed at postoperative day 3, and they should be changed with some regularity (at a minimum of every 1-2 weeks) as well as on an as-needed basis, such as when an obstruction within the lumen occurs. Care coordination can reduce length of hospital and ICU stay. Published evidence is insufficient to support recommendations for a specific device to humidify the inspired gas, the use of a communication device, or timing for the initiation of feedings.
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Affiliation(s)
- Teresa A Volsko
- Nursing Administration, Akron Children's Hospital, Akron, OH.
| | - Sara W Parker
- School of Health Professions, University of Missouri, Columbia, MO
| | - Kathleen Deakins
- Respiratory Care, UH Rainbow Babies & Children's Hospital, Cleveland, OH
| | - Brian K Walsh
- Department of Allied Health Professions, Liberty University, Lynchburg, VA
| | | | - Taher Valika
- Division of Pediatric Otolaryngology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
- Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Emily Ginier
- Taubman Health Sciences Library, University of Michigan, Ann Arbor, MI
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Al-Mudares F, Fernandes CJ. Unilateral neonatal pulmonary interstitial emphysema managed conservatively: A case report. Pediatr Pulmonol 2021; 56:83-87. [PMID: 33080119 DOI: 10.1002/ppul.25112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/03/2020] [Accepted: 10/07/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND Pulmonary interstitial emphysema (PIE) is a pathological state when air escapes from ruptured alveoli and is trapped along the sheaths surrounding the bronchovascular bundle. PIE is not uncommon in infants who require mechanical ventilation and even less common in infants on noninvasive ventilatory support; however, it is extremely unusual in infants in room air. CASE PRESENTATION A 2-week-old male infant developed worsening tachypnea in the special-care nursery. The patient was born at 33 weeks' gestation by induced vaginal delivery due to pre-eclampsia. He required positive pressure ventilation at birth and was admitted to the neonatal intensive care unit on nasal continuous positive airway pressure. On the second day of life, exogenous surfactant was administered via endotracheal tube due to increased oxygen requirement, and, soon after, he was weaned off all respiratory support. After 10 days of stability, he developed tachypnea with diminished air entry on the left side of the chest. Chest radiograph and chest computerized tomography confirmed left-sided unilateral PIE. The patient was treated conservatively with positional therapy alone. Significant clinical and radiographic improvement was noticed within 4 days; almost complete resolution by 10 days and the infant was discharged 23 days later. At follow-up at 7 months, the infant was found to be symptom-free with a normal chest radiograph. CONCLUSIONS Traditional management of unilateral PIE generally involves a combination of invasive ventilatory support and positional therapy to break the vicious cycle pathophysiology of PIE. This report focuses on the insidious progression of PIE in nonventilated neonates and describes a nontraditional conservative management strategy for the management of unilateral PIE.
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Affiliation(s)
- Faeq Al-Mudares
- Section of Neonatology, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Caraciolo J Fernandes
- Section of Neonatology, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
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Hirabayashi G, Saito M, Terayama S, Akihisa Y, Maruyama K, Andoh T. Lung-protective properties of expiratory flow-initiated pressure-controlled inverse ratio ventilation: A randomised controlled trial. PLoS One 2020; 15:e0243971. [PMID: 33332454 PMCID: PMC7746151 DOI: 10.1371/journal.pone.0243971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 11/30/2020] [Indexed: 11/18/2022] Open
Abstract
Background Expiratory flow-initiated pressure-controlled inverse ratio ventilation (EF-initiated PC-IRV) reduces physiological dead space. We hypothesised that EF-initiated PC-IRV would be lung protective compared with volume-controlled ventilation (VCV). Methods Twenty-eight men undergoing robot-assisted laparoscopic radical prostatectomy were enrolled in this randomised controlled trial. The EF-initiated PC-IRV group (n = 14) used pressure-controlled ventilation with the volume guaranteed mode. The inspiratory to expiratory (I:E) ratio was individually adjusted by observing the expiratory flow-time wave. The VCV group (n = 14) used the volume control mode with a 1:2 I:E ratio. The Mann–Whitney U test was used to compare differences in the serum cytokine levels. Results There were no significant differences in serum IL-6 between the EF-initiated PC-IRV (median 34 pg ml-1 (IQR 20.5 to 63.5)) and VCV (31 pg ml-1 (24.5 to 59)) groups (P = 0.84). The physiological dead space rate (physiological dead space/expired tidal volume) was significantly reduced in the EF-initiated PC-IRV group as compared with that in the VCV group (0.31 ± 0.06 vs 0.4 ± 0.07; P<0.001). The physiological dead space rate was negatively correlated with the forced vital capacity (% predicted) in the VCV group (r = -0.85, P<0.001), but not in the EF-initiated PC-IRV group (r = 0.15, P = 0.62). Two patients in the VCV group had permissive hypercapnia with low forced vital capacity (% predicted). Conclusions There were no differences in the lung-protective properties between the two ventilatory strategies. However, EF-initiated PC-IRV reduced physiological dead space rate; thus, it may be useful for reducing the ventilatory volume that is necessary to maintain normocapnia in patients with low forced vital capacity (% predicted) during robot-assisted laparoscopic radical prostatectomy.
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Affiliation(s)
- Go Hirabayashi
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
- * E-mail:
| | - Minami Saito
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
| | - Sachiko Terayama
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
| | - Yuki Akihisa
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
| | - Koichi Maruyama
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
| | - Tomio Andoh
- Department of Anaesthesiology, Mizonokuchi Hospital Teikyo University School of Medicine, Kanagawa, Japan
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Bugiera M, Szczapa T, Sowińska A, Roehr CC, Szymankiewicz-Bręborowicz M. Cerebral oxygenation and circulatory parameters during pressure-controlled vs volume-targeted mechanical ventilation in extremely preterm infants. ADV CLIN EXP MED 2020; 29:1325-1329. [PMID: 33269819 DOI: 10.17219/acem/128198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Respiratory distress syndrome (RDS) is the most common cause of respiratory failure of infants born prematurely with very low birth weight (VLBW). Essential elements of RDS management include ventilatory support and endotracheal administration of a surfactant. OBJECTIVES To assess the effect of volume-targeted compared to pressure-controlled mechanical ventilation (MV) on circulatory parameters and cerebral oxygenation StO2 in extremely preterm infants. MATERIAL AND METHODS This prospective, cross-over trial enrolled neonates born before 28 weeks of gestation. The patients were ventilated for 3 h in pressure-controlled assist-control (PC-AC) mode, followed by 3 h of volume-guarantee assist-control ventilation (VG-AC). Pulse oximetry (saturation (SpO2) and heart rate (HR)), near-infrared spectroscopy (NIRS), StO2, and electrical cardiometry (EC) were used in monitoring of the patients. RESULTS Twenty preterm infants with a mean gestational age of 26 weeks were studied. The patients' mean postnatal age was 7.7 days. The SpO2 values and HR were comparable during PC-AC and VG-AC. The mean values of peak inspiratory pressure (PIP), mean airway pressure (MAP) and expiratory tidal volume (VTE) were lower, while the respiratory rate (RR) was higher during PC-VG. There were no significant differences in the mean values of StO2, but based on a comparison of the standard deviations (SD) the StO2 variability was significantly lower during VG-AC. The circulatory parameters were comparable. CONCLUSIONS The StO2 is more stable during VG than PC ventilation. These findings support the use of VG mode in premature infants.
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Affiliation(s)
- Michalina Bugiera
- Department of Neonatology, Poznan University of Medical Sciences, Poland
| | - Tomasz Szczapa
- Department of Neonatology, Poznan University of Medical Sciences, Poland
| | - Anna Sowińska
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poland
| | - Charles Christoph Roehr
- Newborn Services, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, United Kingdom
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Kuypers KLAM, Lamberska T, Martherus T, Dekker J, Böhringer S, Hooper SB, Plavka R, Te Pas AB. Comparing the effect of two different interfaces on breathing of preterm infants at birth: A matched-pairs analysis. Resuscitation 2020; 157:60-66. [PMID: 33075437 DOI: 10.1016/j.resuscitation.2020.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/16/2020] [Accepted: 10/05/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Applying a face mask could provoke a trigeminocardiac reflex. We compared the effect of applying bi-nasal prongs with a face mask on breathing and heart rate of preterm infants at birth. METHODS In a retrospective matched-pairs study of infants <32 weeks of gestation, the use of bi-nasal prongs for respiratory support at birth was compared to the use of a face mask. Infants who were initially breathing at birth and subsequently received respiratory support were matched for gestational age (±4 days), birth weight (±300 g), general anaesthesia and gender. Breathing, heart rate and other parameters were collected before and after interface application and in the first 5 min thereafter. RESULTS In total, 130 infants were included (n = 65 bi-nasal prongs, n = 65 face mask) with a median (IQR) gestational age of 27+2 (25+3-28+4) vs 26+6 (25+3-28+5) weeks. The proportion of infants who stopped breathing after applying the interface was not different between the groups (bi-nasal prongs 43/65 (66%) vs face mask 46/65 (71%), p = 0.70). Positive pressure ventilation was given more often when bi-nasal prongs were used (55/65 (85%) vs 40/65 (62%), p < 0.001). Heart rate (101 (75-145) vs 110 (68-149) bpm, p = 0.496) and oxygen saturation (59% (48-87) vs 56% (35-84), p = 0.178) were similar in the first 5 min after an interface was applied in the infants who stopped breathing. CONCLUSION Apnoea and bradycardia occurred often after applying either bi-nasal prongs or a face mask on the face for respiratory support in preterm infants at birth.
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Affiliation(s)
- Kristel L A M Kuypers
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, The Netherlands.
| | - Tereza Lamberska
- Division of Neonatology, Department of Obstetrics and Gynaecology, General Faculty Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Tessa Martherus
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Janneke Dekker
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia; Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Stefan Böhringer
- Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands
| | - Stuart B Hooper
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia; Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Richard Plavka
- Division of Neonatology, Department of Obstetrics and Gynaecology, General Faculty Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, The Netherlands
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Herrick HM, Lorch S, Hsu JY, Catchpole K, Foglia EE. Impact of flow disruptions in the delivery room. Resuscitation 2020; 150:29-35. [PMID: 32194162 PMCID: PMC7205586 DOI: 10.1016/j.resuscitation.2020.02.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/20/2020] [Accepted: 02/26/2020] [Indexed: 11/21/2022]
Abstract
AIM Flow disruptions (FDs) are deviations from the progression of care that compromise safety and efficiency of a specific process. The study aim was to identify the impact of FDs during neonatal resuscitation and determine their association with key process and outcome measures. METHODS Prospective observational study of video recorded delivery room resuscitations of neonates <32 weeks gestational age. FDs were classified using an adaptation of Wiegmann's FD tool. The primary outcome was target oxygenation saturation achievement at 5 min. Secondary outcomes included achieving target saturation at 10 min, time to positive pressure ventilation for initially apnoeic/bradycardic neonates, time to electrocardiogram signal, time to pulse oximetry signal, and time to stable airway. Multivariable logistic regression assessed association between FDs and achieving target saturations adjusting for gestational age and leader. Associations between FDs and time to event outcomes were assessed using Cox proportional hazards models. RESULTS Between 10/2017-7/2018, 32 videos were included. A mean of 52.6 FDs (standard deviation 17.9) occurred per resuscitation. Extraneous FDs were the most common FDs. FDs were associated with an adjusted odds ratio of 0.92 (95% confidence interval [CI] 0.80-1.05) of achieving target saturation at 5 min and 0.94 (95% CI 0.84-1.05) at 10 min. There was no significant evidence to show FDs were associated with time to event outcomes. CONCLUSIONS FDs occurred frequently during neonatal resuscitation. Measuring FDs is a feasible method to assess the impact of human factors in the delivery room and identify modifiable factors and practices to improve patient care.
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Affiliation(s)
- Heidi M Herrick
- Department of Pediatrics, Division of Neonatology, The Children's Hospital of Philadelphia and The University of Pennsylvania Perelman School of Medicine, Division of Neonatology, 2(nd) Floor, Main Building, 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA.
| | - Scott Lorch
- Department of Pediatrics, Division of Neonatology, The Children's Hospital of Philadelphia and The University of Pennsylvania Perelman School of Medicine, Division of Neonatology, 2(nd) Floor, Main Building, 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA.
| | - Jesse Y Hsu
- Department of Biostatistics, Epidemiology, and Informatics at The University of Pennsylvania Perelman School of Medicine, 629 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104, USA.
| | - Kenneth Catchpole
- Department of Anesthesia and Perioperative Medicine & College of Nursing at The Medical University of South Carolina, Storm Eye Building, 167 Ashley Avenue, Suite 301, MSC 912, Charleston, SC 29425-9120, USA.
| | - Elizabeth E Foglia
- Department of Pediatrics, Division of Neonatology, The Children's Hospital of Philadelphia and The University of Pennsylvania Perelman School of Medicine, Division of Neonatology, 2(nd) Floor, Main Building, 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA.
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Abstract
OBJECTIVES To compare the imposed work of breathing by means of pressure-time product of the diaphragm in newborn infants receiving different modes of mechanical ventilation. DESIGN Prospective observational crossover study. SETTING Tertiary care neonatal unit. PATIENTS Forty preterm newborns (gestational age ≤ 37 wk) in the phase of weaning from mechanical ventilation. INTERVENTIONS Participants were ventilated in assist control, synchronized intermittent mandatory ventilation, and intermittent mandatory ventilation mode, in a crossover manner. The combination synchronized intermittent mandatory ventilation-pressure support (SIMV-PS) at 50% (SIMV-PS50) and 75% (SIMV-PS75) of the difference between peak inflating and positive end-expiratory pressure, was also applied in a subset of infants (n = 11). Each mode was maintained for 30 minutes. Transdiaphragmatic pressure was obtained by digital subtraction of esophageal from gastric pressure (both measured using a dual pressure-tipped catheter), and pressure-time product of the diaphragm was computed by integration of transdiaphragmatic pressure over inspiratory time. MEASUREMENTS AND MAIN RESULTS The pressure-time product of the diaphragm was 224.2 ± 112.8 in the intermittent mandatory ventilation mode, 165.8 ± 58.8 in the synchronized intermittent mandatory ventilation mode, and 125.5 ± 61.8 cm H2O × s × min in the assist control mode; all values were significantly different to each other (p < 0.0001). The pressure-time product of the diaphragm difference between assist control and intermittent mandatory ventilation, and assist control and synchronized intermittent mandatory ventilation was negatively related to postmenstrual age (regression coefficient, -0.365; p = 0.020 and -0.341; p = 0.031, respectively). In the SIMV-PS subcohort, the pressure-time product of the diaphragm was significantly higher in the intermittent mandatory ventilation mode as compared with assist control (p < 0.0001) or SIMV-PS75 (p = 0.0027), and in the synchronized intermittent mandatory ventilation mode as compared with assist control (p = 0.0301). CONCLUSIONS In preterm infants, patient-triggered ventilation modalities result in lower work of breathing than intermittent mandatory ventilation, while the assist control mode is also associated with lower pressure-time product of the diaphragm compared with synchronized intermittent mandatory ventilation. The difference in the imposed diaphragmatic workload between these ventilation modalities was inversely related to postmenstrual age, implying that less mature infants benefit more from assist control-based ventilation strategies.
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Affiliation(s)
- Aggeliki Vervenioti
- All authors: Neonatal Intensive Care Unit, Department of Pediatrics, University of Patras Medical School, Patras, Greece
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47
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Abstract
BACKGROUND Diaphragm-triggered non-invasive respiratory support, commonly referred to as NIV-NAVA (non-invasive neurally adjusted ventilatory assist), uses the electrical activity of the crural diaphragm to trigger the start and end of a breath. It provides variable inspiratory pressure that is proportional to an infant's changing inspiratory effort. NIV-NAVA has the potential to provide effective, non-invasive, synchronised, multilevel support and may reduce the need for invasive ventilation; however, its effects on short- and long-term outcomes, especially in the preterm infant, are unclear. OBJECTIVES To assess the effectiveness and safety of diaphragm-triggered non-invasive respiratory support in preterm infants (< 37 weeks' gestation) when compared to other non-invasive modes of respiratory support (nasal intermittent positive pressure ventilation (NIPPV); nasal continuous positive airway pressure (nCPAP); high-flow nasal cannulae (HFNC)), and to assess preterm infants with birth weight less than 1000 grams or less than 28 weeks' corrected gestation at the time of intervention as a sub-group. SEARCH METHODS We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL 2019, Issue 5), MEDLINE via PubMed (1946 to 10 May 2019), Embase (1947 to 10 May 2019), and CINAHL (1982 to 10 May 2019). We also searched clinical trials databases, conference proceedings, and the reference lists of retrieved articles for randomised controlled trials (RCTs) and quasi-randomised trials. SELECTION CRITERIA Randomised and quasi-randomised controlled trials that compared diaphragm-triggered non-invasive versus other non-invasive respiratory support in preterm infants. DATA COLLECTION AND ANALYSIS Two review authors independently selected trials, assessed trial quality and extracted data from included studies. We performed fixed-effect analyses and expressed treatment effects as mean difference (MD), risk ratio (RR), and risk difference (RD) with 95% confidence intervals (CIs). We used the generic inverse variance method to analyse specific outcomes for cross-over trials. We used the GRADE approach to assess the certainty of evidence. MAIN RESULTS There were two small randomised controlled trials including a total of 23 infants eligible for inclusion in the review. Only one trial involving 16 infants included in the analysis reported on either of the primary outcomes of the review. This found no difference in failure of modality between NIV-NAVA and NIPPV (RR 0.33, 95% CI 0.02 to 7.14; RD -0.13, 95% CI -0.41 to 0.16; 1 study, 16 infants; heterogeneity not applicable). Both trials reported on secondary outcomes of the review, specific for cross-over trials (total 22 infants; 1 excluded due to failure of initial modality). One study involving seven infants reported a significant reduction in maximum FiO₂ with NIV-NAVA compared to NIPPV (MD -4.29, 95% CI -5.47 to -3.11; heterogeneity not applicable). There was no difference in maximum electric activity of the diaphragm (Edi) signal between modalities (MD -1.75, 95% CI -3.75 to 0.26; I² = 0%) and a significant increase in respiratory rate with NIV-NAVA compared to NIPPV (MD 7.22, 95% CI 0.21 to 14.22; I² = 72%) on a meta-analysis of two studies involving a total of 22 infants. The included studies did not report on other outcomes of interest. AUTHORS' CONCLUSIONS Due to limited data and very low certainty evidence, we were unable to determine if diaphragm-triggered non-invasive respiratory support is effective or safe in preventing respiratory failure in preterm infants. Large, adequately powered randomised controlled trials are needed to determine if diaphragm-triggered non-invasive respiratory support in preterm infants is effective or safe.
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Affiliation(s)
- Dimple Goel
- Westmead HospitalNeonatal Intensive CareHawkesbury Rd & Darcy RoadWestmeadNSWAustralia2145
| | - Ju Lee Oei
- Royal Hospital for WomenNewborn CareBarker StreetRandwickNSWAustralia2031
| | - John Smyth
- Royal Hospital for WomenNewborn CareBarker StreetRandwickNSWAustralia2031
| | - Tim Schindler
- Royal Hospital for WomenNewborn CareBarker StreetRandwickNSWAustralia2031
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48
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Luo Z, Han S, Sun W, Wang Y, Liu S, Yang L, Pang B, Jin J, Chen H, Cao Z, Ma Y. Maintenance of spontaneous breathing at an intensity of 60%-80% may effectively prevent mechanical ventilation-induced diaphragmatic dysfunction. PLoS One 2020; 15:e0229944. [PMID: 32131083 PMCID: PMC7056322 DOI: 10.1371/journal.pone.0229944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 02/18/2020] [Indexed: 11/18/2022] Open
Abstract
Controlled mechanical ventilation (CMV) can cause diaphragmatic motionlessness to induce diaphragmatic dysfunction. Partial maintenance of spontaneous breathing (SB) can reduce ventilation-induced diaphragmatic dysfunction (VIDD). However, to what extent SB is maintained in CMV can attenuate or even prevent VIDD has been rarely reported. The current study aimed to investigate the relationship between SB intensity and VIDD and to identify what intensity of SB maintained in CMV can effectively avoid VIDD. Adult rats were randomly divided according to different SB intensities: SB (0% pressure controlled ventilation (PCV)), high-intensity SB (20% PCV), medium-intensity SB (40% PCV), medium-low intensity SB (60% PCV), low-intensity SB (80% PCV), and PCV (100% PCV). The animals underwent 24-h controlled mechanical ventilation (CMV). The transdiaphragmatic pressure (Pdi), the maximal Pdi (Pdi max) when phrenic nerves were stimulated, Pdi/Pdi max, and the diaphragmatic tonus under different frequencies of electric stimulations were determined. Calpain and caspase-3 were detected using ELISA and the cross-section areas (CSAs) of different types of muscle fibers were measured. The Pdi showed a significant decrease from 20% PCV and the Pdi max showed a significant decrease from 40% PCV (P<0.05). In vivo and vitro diaphragmatic tonus exhibited a significant decrease from 40% PCV and 20% PCV, respectively (P<0.05). From 20% PCV, the CSAs of types I, IIa, and IIb/x muscle fibers showed significant differences, which reached the lowest levels at 100% PCV. SB intensity is negatively associated with the development of VIDD. Maintenance of SB at an intensity of 60%-80% may effectively prevent the occurrence of VIDD.
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Affiliation(s)
- Zujin Luo
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Silu Han
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Wei Sun
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan Wang
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Sijie Liu
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liu Yang
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Baosen Pang
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jiawei Jin
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hong Chen
- Department of Pathology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhixin Cao
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- * E-mail: (ZC); (YM)
| | - Yingmin Ma
- Department of Respiratory and Critical Care Medicine, Beijing Engineering Research Center of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- * E-mail: (ZC); (YM)
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49
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Nord A, Linner R, Salomone F, Bianco F, Ricci F, Murgia X, Schlun M, Cunha-Goncalves D, Perez-de-Sa V. Lung deposition of nebulized surfactant in newborn piglets: Nasal CPAP vs Nasal IPPV. Pediatr Pulmonol 2020; 55:514-520. [PMID: 31833668 DOI: 10.1002/ppul.24603] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 11/26/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND Nasal continuous positive airway pressure support (nCPAP) is the standard of care for prematurely born infants at risk of neonatal respiratory distress syndrome (nRDS). However, nasal intermittent positive pressure ventilation (NIPPV) may be an alternative to nCPAP in babies requiring surfactant, and in conjunction with surfactant nebulization, it could theoretically reduce the need for invasive mechanical ventilation. We compared lung deposition of nebulized poractant in newborn piglets supported by nCPAP or NIPPV. METHODS Twenty-five sedated newborn piglets (1.2-2.2 kg) received either nCPAP (3 cmH2 O, n = 12) or NIPPV (3 cmH2 O positive end expiratory pressure+3 cmH2 O inspiratory pressure, n = 13) via custom-made nasal prongs (FiO2 0.4, Servo-i ventilator). Piglets received 200 mg kg-1 of technetium-99m-surfactant mixture continuously nebulized with a customized eFlow-Neos investigational vibrating-membrane nebulizer system. Blood gases were taken immediately before, during, and after nebulization. The deposition was estimated by gamma scintigraphy. RESULTS Mean surfactant deposition in the lungs was 15.9 ± 11.9% [8.3, 23.5] (mean ± SD [95% CI]) in the nCPAP group and 21.6 ± 10% [15.6, 27.6] in the NIPPV group (P = .20). Respiratory rates were similar in both groups. Minute volume was 489 ± 203 [360, 617] in the nCPAP group and 780 ± 239 [636, 924] mL kg-1 min-1 in the NIPPV group (P = .009). Blood gases were comparable in both groups. CONCLUSION Irrespective of the noninvasive ventilatory support mode used, relatively high lung deposition rates of surfactant were achieved with nebulization. The amounts of deposited surfactant might suffice to elicit a pulmonary function improvement in the context of nRDS.
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Affiliation(s)
- Anders Nord
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Rikard Linner
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | | | - Federico Bianco
- Corporate Preclinical R&D, Chiesi Farmaceutici S.p.A., Parma, Italy
| | - Francesca Ricci
- Corporate Preclinical R&D, Chiesi Farmaceutici S.p.A., Parma, Italy
| | - Xabi Murgia
- Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland, Saarbrucken, Germany
| | | | | | - Valeria Perez-de-Sa
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
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50
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Schwarz EI, Scherff F, Haile SR, Steier J, Kohler M. Effect of Treatment of Central Sleep Apnea/Cheyne-Stokes Respiration on Left Ventricular Ejection Fraction in Heart Failure: A Network Meta-Analysis. J Clin Sleep Med 2019; 15:1817-1825. [PMID: 31855167 PMCID: PMC7099193 DOI: 10.5664/jcsm.8092] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 01/06/2023]
Abstract
STUDY OBJECTIVES Patients who have experienced heart failure with central sleep apnea/Cheyne-Stokes respiration (CSA/CSR) have an impaired prognosis. Continuous positive airway pressure (CPAP) and adaptive servoventilation (ASV) as well as nocturnal oxygen (O₂) are proposed treatment modalities of CSA/CSR. The goal of the study is to assess whether and how different treatments of CSA/CSR affect cardiac function. METHODS Databases were searched up to December 2017 for randomized controlled trials (RCTs) comparing the effect of any combination of CPAP, ASV, O₂ or an inactive control on left ventricular ejection fraction (LVEF) in patients with heart failure and CSA/CSR. A systematic review and network meta-analysis using multivariate random-effects meta-regression were performed. RESULTS Twenty-four RCTs (1,289 patients) were included in the systematic review and data of 16 RCTs (951 patients; apnea-hypopnea-index 38 ± 3/h, LVEF 29 ± 3%) could be pooled in a network meta-analysis. Compared to an inactive control, both CPAP and ASV significantly improved LVEF by 4.4% (95% confidence interval 0.3-8.5%, P = 0.036) and 3.8% (95% confidence interval 0.6-7.0%, P = 0.025), respectively, whereas O₂ had no effect on LVEF (P = 0.35). There was no difference in treatment effects on LVEF between CPAP and ASV (P = 0.76). The treatment effect of positive pressure ventilation was larger when baseline LVEF was lower in systolic heart failure. CONCLUSIONS CPAP and ASV are effective in improving LVEF in patients with heart failure and CSA/CSR to a clinically relevant amount, whereas nocturnal O₂ is not. There is no difference between CPAP and ASV in the comparative beneficial effect on cardiac function.
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Affiliation(s)
- Esther I. Schwarz
- Department of Pulmonology and Sleep Disorders Centre, University Hospital of Zurich, Zurich, Switzerland
| | - Frank Scherff
- Department of Cardiology, University Heart Centre, University Zurich, Zurich, Switzerland
| | - Sarah R. Haile
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Joerg Steier
- Faculty of Life Sciences and Medicine, King’s College London, United Kingdom
| | - Malcolm Kohler
- Department of Pulmonology and Sleep Disorders Centre, University Hospital of Zurich, Zurich, Switzerland
- Centre for Interdisciplinary Sleep Research, University of Zurich, Zurich, Switzerland
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