Use Of Bubble Continuous Positive Airway Pressure Research Articles

Bubble devices versus other pressure sources for nasal continuous positive airway pressure in preterm infants.

Several types of pressure sources, including underwater bubble devices, mechanical ventilators, and the Infant Flow Driver, are used for providing continuous positive airway pressure (CPAP) to preterm infants with respiratory distress. It is unclear whether the use of bubble CPAP versus other pressure sources is associated with lower rates of CPAP treatment failure, or mortality and other morbidity. OBJECTIVES: To assess the benefits and harms of bubble CPAP versus other pressure sources (mechanical ventilators or Infant Flow Driver) for reducing treatment failure and associated morbidity and mortality in newborn preterm infants with or at risk of respiratory distress. We searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2023, Issue 1); MEDLINE (1946 to 6 January 2023), Embase (1974 to 6 January 2023), Maternity & Infant Care Database (1971 to 6 January 2023), and the Cumulative Index to Nursing and Allied Health Literature (1982 to 6 January 2023). We searched clinical trials databases and the reference lists of retrieved articles. We included randomised controlled trials comparing bubble CPAP with other pressure sources (mechanical ventilators or Infant Flow Driver) for the delivery of nasal CPAP to preterm infants. We used standard Cochrane methods. Two review authors separately evaluated trial quality, extracted data, and synthesised effect estimates using risk ratio (RR), risk difference (RD), and mean difference. We used the GRADE approach to assess the certainty of the evidence for effects on treatment failure, all-cause mortality, neurodevelopmental impairment, pneumothorax, moderate-severe nasal trauma, and bronchopulmonary dysplasia. We included 15 trials involving a total of 1437 infants. All trials were small (median number of participants 88). The methods used to generate the randomisation sequence and ensure allocation concealment were unclear in about half of the trial reports. Lack of measures to blind caregivers or investigators was a potential source of bias in all of the included trials. The trials took place during the past 25 years in care facilities internationally, predominantly in India (five trials) and Iran (four trials). The studied pressure sources were commercially available bubble CPAP devices versus a variety of mechanical ventilator (11 trials) or Infant Flow Driver (4 trials) devices. Meta-analyses suggest that the use of bubble CPAP compared with mechanical ventilator or Infant Flow Driver CPAP may reduce the rate of treatment failure (RR 0.76, 95% confidence interval (CI) 0.60 to 0.95; (I² = 31%); RD -0.05, 95% CI -0.10 to -0.01; number needed to treat for an additional beneficial outcome 20, 95% CI 10 to 100; 13 trials, 1230 infants; low certainty evidence). The type of pressure source may not affect mortality prior to hospital discharge (RR 0.93, 95% CI 0.64 to 1.36 (I² = 0%); RD -0.01, 95% CI -0.04 to 0.02; 10 trials, 1189 infants; low certainty evidence). No data were available on neurodevelopmental impairment. Meta-analysis suggests that the pressure source may not affect the risk of pneumothorax (RR 0.73, 95% CI 0.40 to 1.34 (I² = 0%); RD -0.01, 95% CI -0.03 to 0.01; 14 trials, 1340 infants; low certainty evidence). Bubble CPAP likely increases the risk of moderate-severe nasal injury (RR 2.29, 95% CI 1.37 to 3.82 (I² = 17%); RD 0.07, 95% CI 0.03 to 0.11; number needed to treat for an additional harmful outcome 14, 95% CI 9 to 33; 8 trials, 753 infants; moderate certainty evidence). The pressure source may not affect the risk of bronchopulmonary dysplasia (RR 0.76, 95% CI 0.53 to 1.10 (I² = 0%); RD -0.04, 95% CI -0.09 to 0.01; 7 trials, 603 infants; low certainty evidence). AUTHORS' CONCLUSIONS: Given the low level of certainty about the effects of bubble CPAP versus other pressure sources on the risk of treatment failure and most associated morbidity and mortality for preterm infants, further large, high-quality trials are needed to provide evidence of sufficient validity and applicability to inform context- and setting-relevant policy and practice.

Study of Efficacy and Outcome of Nasal Cpap in Preterm Neonates with Hyaline Membrane Disease

Background: In the quest to bring down the neonatal mortality rate, the challenge is to develop low cost technology thatcan be used in remote settings. It is known that early use of continuous positive airway pressure (CPAP) reduces theincidence of respiratory distress and it may be used as an alternative to intubation and ventilation is some casesObjectives: To study the efficacy and outcome of Nasal CPAP in preterm neonates with Hyaline membrane disease.Methods: 50 preterm newborns with respiratory distress (Silverman"s score 3-6) admitted in NICU were included in thestudy. All study population were connected to CPAP variables like gestational age, birth weight, antenatal steroids,Downes Score, Age of start of CPAP, initial FiO2, initial PEEP , max FiO2, max PEEP, duration of CPAP, duration of O2administration, acute complications like sepsis, pneumothorax, septal damage and duration of hospital stay are comparedbetween CPAP success and CPAP failure groups.Results: Preterm New-borns between 31-34 wks of gestational age had a success of 96.5% as compared to gestationalage of 28-30 wks had success of 76.1% and p value 0.02. Preterm New-borns with birth weight > 1000 gms had success of89% when compared to <1000gms had success rate of 50% which is statistically significant. Preterms New-borns born tomothers who received antenatal steroids had better outcome (CPAP success rate of (87.7%) as compared to babies born tomothers who had not received antenatal steroidsConclusion: Early use of bubble CPAP is associated with lesser need for mechanical ventilation as well as reducedhospital stay. Bubble CPAP in pre-term neonates is efficient in decreasing respiratory distress, and associated with lessercomplications as well as mortality rate.

Sustained Reduction of Nasal Pressure Injuries in the Neonatal Intensive Care Unit With the Use of Bubble Continuous Positive Airway Pressure: A Quality Improvement Project.

The purpose of this interprofessional team-driven quality improvement project was to implement a Bubble continuous positive airway pressure (CPAP) Skincare Protocol proactively to prevent potential device-related pressure injuries. The setting was a level 3, 60-bed single patient room neonatal intensive care unit (NICU) located within a Midwest urban academic medical center with more than 200 healthcare providers. Prior to the beginning of this project, the NICU had been using the CPAP apparatus that had documented 6 nasal pressure injuries over a 6-month period. Because of ease of use, the NICU moved to using Bubble CPAP (BCPAP), which is known to place patients at a higher risk of nasal pressure injuries due to the way the apparatus sits inside the nares. An evidence-based practice model provided the guiding framework for the development of our BCPAP Skincare Protocol. Knowing that the unit had already documented nasal pressure injuries, the interprofessional-devised protocol was developed to decrease the risk of nasal injuries with the use of BCPAP in premature infants. The protocol was disseminated via an all-healthcare provider educational program. During the first 3 months postprotocol implementation period, one stage 2 nasal injury was noted and immediately treated and healed without incident. During the next 24-month, postimplementation period, there were zero nasal pressure injuries reported. The healthcare providers found that using an interprofessional team approach in developing and implementing an evidence-based BCPAP Skincare Protocol reduced the incidence of nasal pressure injuries associated with the use of BCPAP in the NICU.

Scaling up newborn care technologies from tertiary- to secondary-level hospitals in Malawi: an implementation case study of health professional perspectives on bubble CPAP

BackgroundWhile Malawi has achieved success in reducing overall under-five mortality, reduction of neonatal mortality remains a persistent challenge. There has, therefore, been a push to strengthen the capacity for quality newborn care at district hospitals through the implementation of innovative neonatal technologies such as bubble continuous positive airway pressure (CPAP). This study investigates tertiary- versus secondary-level hospital differences in capacities for bubble CPAP use and implications for implementation policies.MethodsA secondary analysis of interviews was conducted with 46 health workers at one tertiary hospital and three secondary hospitals in rural Southern Malawi. Grounded theory was utilized to explore the emerging themes according to health worker cadres (nurse, clinician, district health management) and facility level (tertiary- and secondary-level facilities), which were managed using NVivo 12 (QSR International, Melbourne, Australia).ResultsWe identified frequent CPAP use and the availability of neonatal nurses, physicians, and reliable electricity as facilitators for CPAP use at the tertiary hospital. Barriers at the tertiary hospital included initiation eligibility disagreements between clinicians and nurses and insufficient availability of the CPAP machines. At secondary-level hospitals, the use was supported by decision-making and initiation by nurses, involving caretakers to assist in monitoring and reliable availability of CPAP machines. Bubble CPAP was hindered by unreliable electricity, staffing shortages and rotation policies, and poor systems of accountability.ConclusionWhile this study looked at the implementation of bubble CPAP in Malawi, the findings may be applicable for scaling up other novel neonatal technologies in low-resource settings. Implementation policies must consider staffing and management structures at different health services levels for effective scale-up.

Health workers\u2019 views on factors affecting caregiver engagement with bubble CPAP

BackgroundSevere respiratory distress is a leading cause of mortality among neonates in Malawi. Despite evidence on the safety, cost effectiveness and efficacy of bubble continuous positive airway pressure (CPAP) in managing the condition, its use in Malawian health facilities is limited and little is known about caregivers’ engagement with perspectives of bubble CPAP. The purpose of this study was to explore caregiver perspectives for bubble CPAP at both central and district hospitals and key factors that enable effective caregiver engagement in Malawi.MethodsThis was a descriptive qualitative study employing secondary analysis of 46 health care worker in-depth interviews. We interviewed the health workers about their thoughts on caregiver perspectives regarding use of bubble CPAP. We implemented the study at a tertiary facility and three district hospitals in southern Malawi. This was a part of a larger study to understand barriers and facilitators to implementing neonatal innovations in resource-constrained hospitals. Interviews were thematically analysed in NVivo 12 software (QSR International, Melbourne, Australia). Health workers were purposively selected to include nurses, clinicians and district health management involved in the use of bubble CPAP.ResultsEmerging issues included caregiver fears around bubble CPAP equipment as potentially harmful to their new-borns and how inadequate information provided to caregivers exacerbated knowledge gaps and was associated with refusal of care. However, good communication between health care providers and caregivers was associated with acceptance of care. Caregivers’ decision-making was influenced by relatives and peer advocates were helpful in supporting caregivers and alleviating fears or misconceptions about bubble CPAP.ConclusionsSince caregivers turn to relatives and peers for support, there is need to ensure that both relatives and peers are counselled on bubble CPAP for improved understanding and uptake. Health workers need to provide simplified, accurate, up-to-date information on the intervention as per caregivers’ level of understanding. Notably, contextualised comprehensible information will help alleviate caregivers’ fear and anxieties about bubble CPAP.

Bubble versus other continuous positive airway pressure forms: a systematic review and meta-analysis

BackgroundUse of bubble continuous positive airway pressure (CPAP) has generated considerable interest in neonatal care, but its comparative effectiveness compared with other forms of CPAP, especially in developed countries, remains...

Evidence Regarding the Use of Bubble Continuous Positive Airway Pressure in the Extremely Low Birth-Weight Infant

Gentle ventilation with optimal oxygenation is integral to prevention of chronic lung disease in the extremely low birth-weight (ELBW) infant. Various types of noninvasive ventilation are used in neonatal intensive care units worldwide. Bubble continuous positive airway pressure (BCPAP) has been in use in newborn intensive care since 1975. To synthesize the current evidence on the use of BCPAP in the ELBW infant and its relationship to outcomes, particularly morbidity and mortality. A literature review was completed using PubMed, EMBASE, CINAHL, and Cochrane with a focus on BCPAP use in the ELBW population. No study found was exclusive to the ELBW population. All studies ranged from ELBW to full-term neonates. Studies supported the use of BCPAP in the ELBW, demonstrating decreased incidence of chronic lung disease and barotrauma through the use of oscillation and permissive hypercapnia. Literature supports the use of nasal bubble CPAP in the ELBW population. Barriers such as septal erosion, pneumothorax, inconsistent pressures, and air in the abdomen were identified and management recommendations were provided. Studies are needed comparing outcomes of nasal bubble CPAP use with other forms of CPAP in the ELBW infant, comparison of prongs to mask for nasal bubble CPAP, and comparing interventions to recommend optimal care bundles to prevent nasal septum injuries.

A descriptive study on the use of bubble CPAP in a level 2 neonatal intensive care unit in Bangalore, India

Background: Respiratory distress syndrome (RDS) is an important cause of mortality and morbidity in preterm infants. An effective way to reduce the incidence of chronic lung injury is to use continuous positive airway pressure (CPAP) and avoid mechanical ventilation. Objective: To assess the effectiveness of bubble CPAP (BCPAP) on immediate outcome of preterm infants with mild to moderate RDS in a level 2 neonatal intensive care unit (NICU) in Bangalore, India. Method: A prospective analytical study was carried out on preterm neonates of gestational age 28 to 36 weeks with mild to moderate RDS admitted to a level 2 NICU in Bangalore, India, from November 2011 to May 2013. Downe score (DS) was used to assess the severity of RDS. Effectiveness of CPAP was judged using DS and fraction of inspired oxygen (FiO2) requirement. Results : BCPAP was effective in 91% of the studied babies. At the start of CPAP 11%, 48% and 41% of babies had DS of 4, 5 and 6 respectively. At 6 hours of CPAP therapy, 56% of the babies had a score of less than 4. At 12 hours of CPAP therapy 89% of babies had a score of 4 or less, only 3% and 8% of the babies having DS of 5 and 6 respectively. Nine percent of the babies persisted in having a FiO2 requirement of 50% or more at 6 and 12 hours of CPAP therapy. Conclusion: BCPAP was effective in 91% of the studied preterm neonates of gestational age 28 to 36 weeks with mild to moderate RDS in a level 2 NICU in Bangalore, India. Sri Lanka Journal of Child Health , 2017; 46 : 211-217

Bubble CPAP Support after Discontinuation of Mechanical Ventilation Protects Rat Lungs with Ventilator-Induced Lung Injury

Background: Bubble continuous positive airway pressure (BCPAP) has been used in neonates with respiratory distress for decades, but its lung-protective effect and underlying mechanism has not been investigated. Objectives: To test the hypothesis that BCPAP use after extubation decreases lung injury and that alterations to lung nitric oxide synthase (NOS) 3 expression may be one of the underlying mechanisms. Methods: We compared gas exchange, lung injury severity, and lung NOS expression among rats with ventilator-induced lung injury (VILI) treated with either BCPAP or spontaneous breathing. After high tidal volume ventilation for 30 min, the rats were randomly divided to three groups: a control group underwent spontaneous breathing (n = 7), and two BCPAP groups were treated with the bubble technique with either a 2.5-mm-diameter (n = 7) or a 5.5-mm-diameter (n = 7) expiratory limb for 2 h. Results: The bubble technique (2.5 and 5.5 mm diameter combined) resulted in a significantly higher Pa<smlcap>O</smlcap>₂, decreased alveolar protein levels (1.01 vs. 1.43 mg/kg, p < 0.05), a lower lung injury score (3.87 vs. 4.86, p < 0.05), and decreased NOS3 expression (1.99 vs. 3.32, p < 0.05) compared to spontaneous breathing in the control group. BCPAP with a 2.5-mm-diameter and with a 5.5-mm-diameter expiratory limb was not different with regard to gas exchange, alveolar protein levels, and lung injury scores, but there was a trend for lower NOS3 expression in the 5.5-mm group (1.41 vs. 2.56, p = 0.052). Conclusions: BCPAP decreases lung injury in rats with VILI after stopping mechanical ventilation. Attenuation of lung NOS3 expression may be one of the underlying mechanisms.

The Use of Bubble CPAP and Humidified High Flow Nasal Cannula Oxygen Therapy in Children with Severe Pneumonia and Hypoxemia: A Systematic Review of the Evidence

Background: Among children with severe pneumonia hypoxemia is the commonest complication leading to death. Some children will have both type I (hypoxemic) and type II (hypercarbic) respiratory failure. Together this accounts for high case-fatality rates in most populations with severe pneumonia. Standard oxygen supplementation by nasal prongs (low flow) can be lifesaving, but is not always sufficient to manage respiratory failure. In recent years continuous positive airway pressure (CPAP) has been used to relieve hypoxemia and reduce the work of breathing. There are several ways to give positive airway pressure; one is bubble CPAP (BCPAP), another is high flow nasal cannula (HFNC) oxygen therapy.Objective: To review the evidence for using BCPAP, and HFNC therapy in children with severe pneumonia and hypoxemia, particularly the experience of these therapies in developing countries.Methods: Two of our study investigators independently conducted searches of the existing literature in PUBMED in October 2014 to identify reports focusing on the use of BCPAP or HFNC therapy in children with severe pneumonia and hypoxemia, as defined by the World Health Organization.Results: 13 relevant studies were identified. Ten evaluated the efficacy of BCPAP among 3164 children, and three described the same for HFNC in 255 children. In all studies the entry criteria was severe respiratory distress. The study methodologies, the outcomes recorded and results were heterogeneous. The age range of the children in the studies was from the immediate newborn period on day 1 of life up to the age of 12 years. However, we evaluated the outcome of our review in two aged categories and found: children 0-28 days for 8 studies and &gt; 28 days for 2 studies. In 3 studies of children aged 0-28 days and 2 studies of older children had clinical features consistent with severe pneumonia and those who among them were treated with immediate BCPAP therapy had better outcome (p&lt;0.01 or CI &lt; 1) compared to those who were treated with delayed BCPAP, or historical control one each, or standard flow flow (LF) oxygen therapy (in two studies). Primary outcomes were comparable between BCPAP and ventilator driven CPAP in three studies and between BCPAP and low flow oxygen or variable flow nasal CPAP in two studies (95% CI contain 1) of children aged 0-28 days. Children treated with HFNC compared to those who did not receive HFNC in three relevant studies, all of them in older children had better outcome (p&lt;0.05).Conclusion: Studies of BCPAP and HFNC are heterogeneous with different populations, comparators, outcome measures and results. However limited studies suggest that BCPAP may be effective in managing respiratory distress and hypoxemia in developing countries, although evidence is not overwhelming. Studies of the use of HFNC therapy are more limited and do not allow firm conclusions to be made. Most studies of BCPAP and HFNC have been done in neonates with respiratory distress, and studies outside this age group, where the predominant pathologies are bacterial pneumonia, sepsis and viral bronchiolitis are needed.Bangladesh Crit Care J September 2014; 2 (2): 71-78

Bubble continuous positive airway pressure in a human immunodeficiency virus-infected infant [Case study

World Health Organization-classified very severe pneumonia due to Pneumocystis jirovecii infection is recognized as a life-threatening condition in human immunodeficiency virus (HIV) infected infants. We recount the use of nasal bubble continuous positive airway pressure (BCPAP) in an HIV-infected African infant with very severe pneumonia and treatment failure due to suspected infection with P. jirovecii. We also examine the potential implications of BCPAP use in resource-poor settings with a high case index of acute respiratory failure due to HIV-related pneumonia, but limited access to mechanical ventilation.