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Wang TY, Zhu Y, Yin JL, Zhao LY, Wang HJ, Xiao CW, Wu LY. The effect of high-frequency oscillatory ventilator combined with pulmonary surfactant in the treatment of neonatal respiratory distress syndrome. Medicine (Baltimore) 2022; 101:e29940. [PMID: 35960117 PMCID: PMC9371548 DOI: 10.1097/md.0000000000029940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE To investigate the efficacy of high-frequency oscillatory ventilation (HFOV) combined with pulmonary surfactant (PS) in the treatment of neonatal respiratory distress syndrome (NRDS). METHODS This study is a retrospective clinical study. Seventy-two NRDS neonates were selected as the subjects from November 2019 to November 2020, and divided into observation group (40 cases, HFOV treatment) and control group (32 cases, conventional mechanical ventilation treatment). All cases were treated with PS and comprehensive treatment. The therapeutic effect, arterial partial pressure of oxygen (PaO2), arterial partial pressure of carbon dioxide (PaCO2), Percentage of inhaled oxygen concentration (FiO2), mean arterialpressure, oxygenation index (OI), and complications were compared in the 2 groups. RESULTS The total effective rate of the observation group was 90.0%, significantly higher than that of the control group. After treatment, the observation group has higher PaO2 levels and lower levels of PaCO2, mean arterial pressure, FiO2, and OI than the control group. There was no significant difference in the incidence of complications between the 2 groups. CONCLUSION HFOV combined with PS has a significant effect on NRDS, which can improve the arterial blood gas index without increasing the incidence of complications.
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Affiliation(s)
- Tie-Yan Wang
- Department of Paediatrics, The Second Affiliated Hospital of Qiqihar Medical University, Heilongjiang, China
| | - Ying Zhu
- Department of Paediatrics, The Second Affiliated Hospital of Qiqihar Medical University, Heilongjiang, China
| | - Jia-Lin Yin
- Department of Paediatrics, The Second Affiliated Hospital of Qiqihar Medical University, Heilongjiang, China
| | - Li-Yan Zhao
- Department of Neonatology, Qiqihar Traditional Chinese Medicine Hospital, Heilongjiang, China
| | - Hai-Jun Wang
- Department of Pediatrics, The First Affiliated Hospital of Qiqihar Medical University, Heilongjiang, China
- * Correspondence: Hai-Jun Wang, MM, Department of Pediatrics, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, 37 Zhonghua West Road, Jianhua District, Heilongjiang 161002, China (e-mail: )
| | - Chun-Wang Xiao
- Department of Sarcomaand Nano-oncology Group, Adult Cancer Program, Lowy Cancer Research Centre, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Li-Yan Wu
- Department of Pediatrics, The First Affiliated Hospital of Qiqihar Medical University, Heilongjiang, China
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Miller AG, Tan HL, Smith BJ, Rotta AT, Lee JH. The Physiological Basis of High-Frequency Oscillatory Ventilation and Current Evidence in Adults and Children: A Narrative Review. Front Physiol 2022; 13:813478. [PMID: 35557962 PMCID: PMC9087180 DOI: 10.3389/fphys.2022.813478] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/08/2022] [Indexed: 12/12/2022] Open
Abstract
High-frequency oscillatory ventilation (HFOV) is a type of invasive mechanical ventilation that employs supra-physiologic respiratory rates and low tidal volumes (VT) that approximate the anatomic deadspace. During HFOV, mean airway pressure is set and gas is then displaced towards and away from the patient through a piston. Carbon dioxide (CO2) is cleared based on the power (amplitude) setting and frequency, with lower frequencies resulting in higher VT and CO2 clearance. Airway pressure amplitude is significantly attenuated throughout the respiratory system and mechanical strain and stress on the alveoli are theoretically minimized. HFOV has been purported as a form of lung protective ventilation that minimizes volutrauma, atelectrauma, and biotrauma. Following two large randomized controlled trials showing no benefit and harm, respectively, HFOV has largely been abandoned in adults with ARDS. A multi-center clinical trial in children is ongoing. This article aims to review the physiologic rationale for the use of HFOV in patients with acute respiratory failure, summarize relevant bench and animal models, and discuss the potential use of HFOV as a primary and rescue mode in adults and children with severe respiratory failure.
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Affiliation(s)
- Andrew G Miller
- Duke University Medical Center, Respiratory Care Services, Durham, NC, United States
| | - Herng Lee Tan
- KK Women's and Children's Hospital, Children's Intensive Care Unit, Singapore, Singapore
| | - Brian J Smith
- University of California, Davis, Respiratory Care Services, Sacramento, CA, United States
| | - Alexandre T Rotta
- Duke University Medical Center, Division of Pediatric Critical Care Medicine, Durham, NC, United States
| | - Jan Hau Lee
- KK Women's and Children's Hospital, Children's Intensive Care Unit, Singapore, Singapore.,Duke-NUS Medical School, Singapore, Singapore
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Abstract
INTRODUCTION The use of mechanical ventilation is an invaluable tool in caring for critically ill patients. Enhancing our capabilities in mechanical ventilation has been instrumental in the ability to support clinical conditions and diseases which were once associated with high mortality. Areas covered: Within this manuscript, we will look to discuss emerging approaches to improving the care of pediatric patients who require mechanical ventilation. After an extensive literature search, we will provide a brief review of the history and pathophysiology of acute respiratory distress syndrome, an assessment of several ventilator settings, a discussion on assisted ventilation, review of therapy used to rescue in severe respiratory failure, methods of monitoring the effects of mechanical ventilation, and nutrition. Expert opinion: As we have advanced in our care, we are seeing children survive illnesses that would have once claimed their lives. Given this knowledge, we must continue to advance the research in pediatric critical care to understand the means in which we can tailor the therapy to the patient in efforts to efficiently liberate them from mechanical ventilation once their illness has resolved.
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Affiliation(s)
- Duane C Williams
- a Division of Pediatric Critical Care Medicine, Department of Pediatrics , Penn State Hershey Children's Hospital , Hershey , PA , USA
| | - Ira M Cheifetz
- b Division of Pediatric Critical Care Medicine, Department of Pediatrics , Duke Children's Hospital , Durham , NC , USA
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Rub DM, Sivieri EM, Abbasi S, Eichenwald E. Effect of high-frequency oscillation on pressure delivered by high flow nasal cannula in a premature infant lung model. Pediatr Pulmonol 2019; 54:1860-1865. [PMID: 31339005 DOI: 10.1002/ppul.24459] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/25/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This study describes the effect of high-frequency oscillation on airway pressure generated by high flow nasal cannula (HFNC) in a premature infant lung model. DESIGN/METHODS A premature in 0.5 or 1.0 mL/cmH 2 O, respiratory rate (RR) of 40 or 60 breaths per min, and tidal volume of 6 mL. Oscillation was achieved by passing the HFNC supply flow through a 3-way solenoid valve operating at 4, 6, 8, or 10 Hz. Airway pressure at the simulated trachea was recorded following equilibration of end-tidal CO 2 both with and without oscillation. RESULTS Superimposing high-frequency oscillations onto HFNC resulted in an average decrease in mean airway pressure of 17.9% (P = .011). The difference between the maximum and minimum airway pressures, ∆ P min-max, significantly increased as oscillation frequency decreased ( P < .001). Airway pressure during oscillation was 12.8% greater with the 1.0 vs the 0.5 mL/cmH 2 O compliance at flows > 4 L/min ( P = .031). CO 2 clearance was 13.1% greater with the 1.0 vs 0.5 mL/cmH 2 O compliance at oscillation frequencies less than 8 Hz ( P = .015). CONCLUSION In this in-vitro study we demonstrate that delivered mean airway pressure decreases when applying high-frequency oscillation to HFNC, while still improving CO2 clearance. The combination of improved CO 2 clearance and reduced pressure delivery of this novel noninvasive modality may prove to be a useful improvement in the respiratory care of infants in respiratory distress.
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Affiliation(s)
- David M Rub
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Emidio M Sivieri
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,CHOP Newborn Care at Pennsylvania Hospital, Philadelphia, Pennsylvania
| | - Soraya Abbasi
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,CHOP Newborn Care at Pennsylvania Hospital, Philadelphia, Pennsylvania
| | - Eric Eichenwald
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,CHOP Newborn Care at Pennsylvania Hospital, Philadelphia, Pennsylvania
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de Jager P, Kamp T, Dijkstra SK, Burgerhof JGM, Markhorst DG, Curley MAQ, Cheifetz IM, Kneyber MCJ. Feasibility of an alternative, physiologic, individualized open-lung approach to high-frequency oscillatory ventilation in children. Ann Intensive Care 2019; 9:9. [PMID: 30659380 PMCID: PMC6338613 DOI: 10.1186/s13613-019-0492-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 01/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background High-frequency oscillatory ventilation (HFOV) is a common but unproven management strategy in paediatric critical care. Oscillator settings have been traditionally guided by patient age and/or weight rather than by lung mechanics, thereby potentially negating any beneficial effects. We have adopted an open-lung HFOV strategy based on a corner frequency approach using an initial incremental–decremental mean airway pressure titration manoeuvre, a high frequency (8–15 Hz), and high power to initially target a proximal pressure amplitude (∆Pproximal) of 70–90 cm H2O, irrespective of age or weight. Methods We reviewed prospectively collected data on patients < 18 years of age who were managed with HFOV for acute respiratory failure. We measured metrics for oxygenation, ventilation, and haemodynamics as well as the use of sedative-analgesic medications and neuromuscular blocking agents. Results Data from 115 non-cardiac patients were analysed, of whom 53 had moderate-to-severe paediatric acute respiratory distress syndrome (PARDS). Sixteen patients (13.9%) died. Frequencies≥ 8 Hz and high ∆Pproximal were achieved in all patients irrespective of age or PARDS severity. Patients with severe PARDS showed the greatest improvement in oxygenation. pH and PaCO2 normalized in all patients. Haemodynamic parameters, cumulative amount of fluid challenges, and daily fluid balance did not deteriorate after transitioning to HFOV in any age or PARDS severity group. We observed a transient increase neuromuscular blocking agent use after switching to HFOV, but there was no increase in the daily cumulative amount of continuous midazolam or morphine in any age or PARDS severity group. No patients experienced clinically apparent barotrauma. Conclusions This is the first study reporting the feasibility of an alternative, individualized, physiology-based open-lung HFOV strategy targeting high F and high ∆Pproximal. No adverse effects were observed with this strategy. Our findings warrant further systematic evaluation.
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Affiliation(s)
- Pauline de Jager
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Huispost CA 80, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Tamara Kamp
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Huispost CA 80, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Sandra K Dijkstra
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Huispost CA 80, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Johannes G M Burgerhof
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Dick G Markhorst
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Martha A Q Curley
- Family and Community Health, School of Nursing, Anesthesia and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ira M Cheifetz
- Department of Pediatrics, Division of Critical Care Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Martin C J Kneyber
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Huispost CA 80, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands. .,Critical Care, Anaesthesiology, Perioperative and Emergency Medicine (CAPE), University of Groningen, Groningen, The Netherlands.
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Lee SM, Namgung R, Eun HS, Lee SM, Park MS, Park KI. Effective Tidal Volume for Normocapnia in Very-Low-Birth-Weight Infants Using High-Frequency Oscillatory Ventilation. Yonsei Med J 2018; 59:101-106. [PMID: 29214783 PMCID: PMC5725345 DOI: 10.3349/ymj.2018.59.1.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/29/2017] [Accepted: 09/30/2017] [Indexed: 02/04/2023] Open
Abstract
PURPOSE Removal of CO₂ is much efficient during high-frequency oscillatory ventilation (HFOV) for preterm infants. However, an optimal carbon dioxide diffusion coefficient (DCO₂) and tidal volume (VT) have not yet been established due to much individual variance. This study aimed to analyze DCO₂ values, VT, and minute volume in very-low-birth-weight (VLBW) infants using HFOV and correlates with plasma CO₂ (pCO₂). MATERIALS AND METHODS Daily respiratory mechanics and ventilator settings from twenty VLBW infants and their two hundred seventeen results of blood gas analysis were collected. Patients were treated with the Dräger Babylog VN500 ventilator (Drägerwerk Ag & Co.) in HFOV mode. The normocapnia was indicated as pCO₂ ranging from 45 mm Hg to 55 mm Hg. RESULTS The measured VT was 1.7 mL/kg, minute volume was 0.7 mL/kg, and DCO₂ was 43.5 mL²/s. Mean results of the blood gas test were as follows: pH, 7.31; pCO₂, 52.6 mm Hg; and SpO₂, 90.5%. In normocapnic state, the mean VT was significantly higher than in hypercapnic state (2.1±0.5 mL/kg vs. 1.6±0.3 mL/kg), and the mean DCO₂ showed significant difference (68.4±32.7 mL²/s vs. 32.4±15.7 mL²/s). The DCO₂ was significantly correlated with the pCO₂ (p=0.024). In the receiver operating curve analysis, the estimated optimal cut-off point to predict the remaining normocapnic status was a VT of 1.75 mL/kg (sensitivity 73%, specificity 80%). CONCLUSION In VLBW infants treated with HFOV, VT of 1.75 mL/kg is recommended for maintaining proper ventilation.
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Affiliation(s)
- Seul Mi Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Ran Namgung
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Ho Sun Eun
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Min Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.
| | - Min Soo Park
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Kook In Park
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
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