A Low-Resource Oxygen Blender Prototype for Use in Modified Bubble CPAP Circuits
- Conditions
- Lower Respiratory Tract InfectionRespiratory Distress Syndrome
- Interventions
- Device: Low-Resource Oxygen Blender
- Registration Number
- NCT04311320
- Lead Sponsor
- University of Minnesota
- Brief Summary
Purpose: Using a novel oxygen blender prototype with modified bCPAP to manage children 1 month to 5 years of age hospitalized with respiratory distress due to lower respiratory tract infection (LRTI) in low-resource settings is not associated with clinical failure within 1 hour of use.
Aim: To investigate if this novel oxygen blender is safe to use among children 1 month to 5 years old hospitalized for respiratory distress from lower respiratory tract infections in a low-resource setting.
- Detailed Description
The study will be a prospective cohort feasibility and safety trial. Patients admitted to Chenla Children's Healthcare who meet eligibility criteria will be asked for consent and then enrolled. Once enrolled, the participant will be treated per hospital protocols and stabilized on bCPAP respiratory support. Once stable for 2 hours, the blender will be incorporated into the bCPAP circuit. At this point, the study nurses will begin recording data for the study as well as providing standard medical care per hospital protocols.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 33
- Admitted for lung disease and require hospitalization
- Admission diagnosis is lower respiratory tract infection or pneumonia or bronchiolitis (any infectious microbe including bacterial, viral, fungal, parasitic)
- Have respiratory distress on presentation to the hospital (cough or trouble breathing plus at least one of the following: <92% despite low flow oxygen, central cyanosis, tachypnea, chest indrawing, nasal flaring, grunting, head nodding, convulsions, lethargy, inability to breastfeed or drink)
- A bCPAP (electronic) machine is not available to use
- History of asthma
- Upper airway obstruction
- Diaphragmatic hernia
- Pneumothorax
- Acute Glasgow Coma score <4
- Cleft Palate
- Cyanotic heart disease
- Bleeding disorders
- Imminent death within 2 hours
- Have had abdominal or thoracic surgery
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Low-Resource Oxygen Blender Low-Resource Oxygen Blender This is a single-arm study. All participants will receive respiratory support using the investigational device.
- Primary Outcome Measures
Name Time Method Feasibility as Measured by Clinical Failure 1 hour The primary outcome of this study is the feasibility of the investigational device as measured by clinical failure within 1 hour of installing the blender in the bubble continuous positive airway pressure (bCPAP) circuit. Clinical failure is defined as the occurrence of any of the following patient events: intubation, death, or transfer for higher level of care, or any 2 of the following events; \<85% O2 saturation after 30 min of treatment, new signs of respiratory distress, or partial pressure of carbon dioxide greater than 60 mmHg and pH less than 7.2 in capillary blood gas.
Outcome will be reported as the percent of participants who experience clinical failure within 1 hour after blender installation.
- Secondary Outcome Measures
Name Time Method Blender Maintenance Approximately 7 days Blender maintenance is defined as the number of times the blender needs to be repaired or replaced per patient. Need for maintenance will be assessed every 2 hours for the length of hospital stay. Number of incidents per patient will be recorded and outcome will be reported as mean value of all measurements per patient.
Oxygen Saturation Approximately 7 days Oxygen saturation will be measured with pulse oximeter every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. Units are percent.
Continuous Positive Air Pressure (CPAP) Level Approximately 7 days CPAP level (as displayed on CPAP device) will be recorded every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. This outcome measure is reported in units of cm of H2O.
Number of Patient Transfers Approximately 7 days Outcome is reported as number of patients who require transfer to a higher level of care.
Number of Patient Intubations Approximately 7 days Outcome is reported as number of patients requiring intubation.
Oxygen Concentration of Outflow Approximately 7 days Oxygen concentration of outflow from nasal cannula will be measured with an oxygen analyzer every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. Units are percent oxygen.
Flow of Oxygen from Tank Approximately 7 days Flow of oxygen from tank will be measured with the gauge on the oxygen canister. Measurements will be recorded every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient in units of liters per minute.
Bubble Continuous Positive Air Pressure (bCPAP) Maintenance Approximately 7 days bCPAP maintenance is defined as the number of times no bubbling in the water column is noted by study staff indicating the need for maintenance. Need for maintenance will be assessed every 2 hours for the length of hospital stay. Number of incidents per patient will be recorded and outcome will be reported as a mean value of all measurements per patient.
Duration of Respiratory Support Approximately 7 days Outcome will be reported as the length of time (in hours) that respiratory support (i.e. requiring bCPAP and blender) is required during hospital submission.
Trial Locations
- Locations (1)
Chenla Children's Healthcare
🇰🇭Kratié, Kratié Province, Cambodia