The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. The high flow nasal cannula (HFNC)

Slides:



Advertisements
Similar presentations
Neonatal Mechanical Ventilation
Advertisements

Mosby items and derived items © 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Airway Management and Ventilation Team Work Chapter 6.
Mechanics of Breathing. Events of Respiration  Pulmonary ventilation – moving air in and out of the lungs  External respiration – gas exchange between.
Effect of nasal positive expiratory pressure (PEP) on 6-min walk test (6MWT) distance and pre- to post-exercise increase in lung volumes in each individual.
MACS CPAP System Self Guided Tour.
Pneumatic schematic of the Dräger Infinity V500 intensive care ventilator. A. Gas-mixture and gas-metering assembly. Gas from the supply lines enters the.
From: Continuous Positive Airway Pressure Mitigates Opioid-induced Worsening of Sleep-disordered Breathing Early after Bariatric Surgery Anesthes. 2016;125(1):
Humidification systems for high-flow cannulas.
Respiratory Quiz 8th Period.
The patient is being ventilated with 2 types of breaths.
The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.
Airway pressure and flow waveforms during constant flow volume control ventilation, illustrating the effect of an end-inspiratory breath-hold. Airway pressure.
AEROSOL DELIVERY THROUGH ADULT HIGH FLOW NASAL CANNULA:
Spearman rank correlation between absolute humidity and the patient's core temperature with the Humid-Heat device. Spearman rank correlation between absolute.
Air flow during ventilator-supported speech production.
Schematic illustration of upper airway anatomical dead space volume (VD) during unidirectional breathing. Schematic illustration of upper airway anatomical.
Lung simulator diagram of airway pressure release ventilation (APRV): volume (yellow), lung pressure (white), and flow (orange)/time curve. Lung simulator.
The Spectrum mask incorporates the leak port into the circuit, whereas the Mirage mask incorporates the leak port into the mask. The Spectrum mask incorporates.
A ventilator and TTL test lung were used to simulate spontaneous breathing. A ventilator and TTL test lung were used to simulate spontaneous breathing.
Respiratory Physiology
A: Pressure (green) and volume (black)/time curve in airway pressure release ventilation (APRV). A: Pressure (green) and volume (black)/time curve in airway.
An example of delayed cycling during pressure-support ventilation of a patient with COPD, on a Puritan Bennett 7200 ventilator, which has a flow-termination.
Example airway pressure and rib-cage impedance in a premature infant supported with the biphasic mode of SiPAP (“sigh” positive airway pressure) from the.
Simulated screenshot of flow starvation in volume control continuous mandatory ventilation. Simulated screenshot of flow starvation in volume control continuous.
The peak flows (60 L/min) and flow patterns are the same for all the breaths. The peak flows (60 L/min) and flow patterns are the same for all the breaths.
A: Machine-triggered intermittent mandatory ventilation (IMV) with inadequate patient triggering of mandatory breaths. A: Machine-triggered intermittent.
Trigger and synchronization windows.
Pressure, flow, volume, and electrical activity of the diaphragm (EAdi) waveforms from a patient on pressure support ventilation, and the presumed pressure.
Pressure, flow, volume, and electrical activity of the diaphragm (EAdi) waveforms from a patient on pressure support ventilation, and the presumed pressure.
In this tracing of 30 seconds, 4 breaths are ineffectively triggered (arrows IT) and 7 are effectively triggered. In this tracing of 30 seconds, 4 breaths.
HFNC off is compared with HFNC 30 L/min and HFNC 50 L/min for tidal volume. HFNC off is compared with HFNC 30 L/min and HFNC 50 L/min for tidal volume.
A 2-min recording showing periodic breathing, stable delivered pressure, and fluctuating oxygen saturation in a premature neonate supported by nasal intermittent.
Ineffective efforts and operation of apnea ventilation during pressure control continuous spontaneous ventilation (PC-CSV). Ineffective efforts and operation.
Effect of respiratory mechanics on cycling of pressure support from inhalation to exhalation. Effect of respiratory mechanics on cycling of pressure support.
Bland-Altman plots with exhaled VT difference plotted against the mean (displayed and pneumotachograph-measured) with and without sensor for method circuit.
We connected the supplemental oxygen supply at 3 places: near the ventilator, near the exhalation valve, and on the nasal mask port. We connected the supplemental.
Changes in PaO2/FIO2 (A) and PaCO2 (B).
Blom speech cannula. Blom speech cannula. Inspiratory pressure opens the flap valve and closes (expands) the bubble valve, sealing the fenestration so.
Carbon monoxide (CO) delivery system used in animal models and Phase 1 clinical trials. Carbon monoxide (CO) delivery system used in animal models and.
The Boussignac continuous positive airway pressure (CPAP) is a small plastic cylinder that attaches to a face mask. The Boussignac continuous positive.
Control circuit for set-point or dual targeting schemes.
Assembly used to convert a standard ventilator to an intermittent mandatory ventilation circuit. Assembly used to convert a standard ventilator to an intermittent.
Breathing frequency and PaCO2: comparison between high-flow nasal cannula oxygen therapy (HFNC) and comparative therapies in 8 studies. Breathing frequency.
Control circuit for a servo targeting scheme (eg, Proportional Assist Ventilation). Control circuit for a servo targeting scheme (eg, Proportional Assist.
Change in trigger delay during invasive (A) and noninvasive ventilation (B) with variable leak. Change in trigger delay during invasive (A) and noninvasive.
A: ECMO circuit tubing with component pieces in place, configured with a centrifugal pump. A: ECMO circuit tubing with component pieces in place, configured.
A: Evolution of clinically observed signs after 38 patients received high-flow nasal cannula oxygen. A: Evolution of clinically observed signs after 38.
Total drug dose by device and condition while delivering 1 mL of ribavirin (5 min for the small-particle aerosol generator [SPAG] or 2 min for the vibrating.
Experimental setup of particle distribution using the 8-stage Andersen cascade impactor and in vitro module using an absolute filter. Experimental setup.
The cause of asynchrony during volume-targeted ventilation and total asynchrony index. The cause of asynchrony during volume-targeted ventilation and total.
SpO2 at baseline, pre- and post-intubation.
Calculated negative pressure developed in the lung plotted against the outside diameter of the suction catheter to the inside diameter of the airway. Calculated.
Flow, airway pressure, and transversus abdominis electromyogram (EMG) waveforms from a mechanically ventilated patient with COPD receiving pressure-support.
Plots of alveolar PO2, hemoglobin saturation, and alveolar PCO2 as a function of alveolar ventilation in a normal subject at sea level (inspired oxygen.
Components of a patient-triggered mechanical breath.
Physical variables affecting FIO2 of nasal cannula with increasing breathing frequency (f), at flows from 1–5 L/min. Physical variables affecting FIO2.
Correlation between maximum inspiratory pressure and inspiratory load compensation (ILC) ventilatory variables in the 16 difficult-to-wean subjects, prior.
Tidal volume (VT) error (% difference between set and actual values) was determined for each ventilator at VT of 300, 500, and 700 mL. Tidal volume (VT)
A: Work of breathing before and after nebulized terbutaline delivered via standard nebulization method versus delivered during continuous positive airway.
The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.
Representative tidal volume (VT) and breathing frequency (f) patterns of subjects with COPD and normal subjects during cardiopulmonary exercise testing.
Experimental setup. Experimental setup. Each tested ventilator was connected to the TTL test lung via a ventilator circuit. An oxygen analyzer, a pressure.
Progression of spontaneous breathing trials administered during inspiratory muscle strength training study interventions. Progression of spontaneous breathing.
Lung model expiratory CO2 (or PETOv2) representing simulated alveolar CO2 at baseline (no high-flow nasal cannula) and effect on expiratory CO2 at different.
Difference between mid-frequency ventilation (MFV), volume control continuous mandatory ventilation (VC-CMV), and pressure control CMV (PC-CMV) when frequency.
Basic setup for high-flow nasal cannula oxygen delivery.
Percent of extremely-low-birth-weight (ELBW) babies alive and off mechanical ventilation at 7 days, and median days on mechanical ventilation for ELBW.
Minute-by-minute means of breathing variables during the spontaneous breathing trial for the groups of subjects with trial success (n = 32) and failure.
Setup of the BiPAP Synchrony with an inspiratory filter and single-limb passive circuit, with the filter placed over the fixed leak to collect aerosol.
Mean nasopharyngeal pressure during high-flow oxygen therapy, with mouth open or closed. Mean nasopharyngeal pressure during high-flow oxygen therapy,
Presentation transcript:

The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. The high flow nasal cannula (HFNC) system incorporated an air/O2 blender with a flow meter and a heated humidifier. For the HFNC protocols, nasal prongs were connected to the manufacturer's standard circuit. We made 2 holes in a polyvinyl chloride cylinder to simulate adult external nares. The external nares were connected to the TTL test lung via a standard ventilator circuit. Spontaneous breathing was simulated using a mechanical ventilator and TTL test lung. To simulate spontaneous breathing, the muscle and lung compartment of the test lung were connected; consequently, the mechanical ventilator inflated the muscle compartment, whereupon the lung compartment inspired, along with ambient air, medical gas delivered, in turn, via each of the HFNC prongs and a conventional low-flow cannula. To monitor VT delivered to the lung compartment, flow to the lung compartment was measured using a pneumotachometer with a differential pressure transducer. Inspired gas downstream of the external nares was measured using an oxygen analyzer. Yusuke Chikata et al. Respir Care 2017;62:193-198 (c) 2012 by Daedalus Enterprises, Inc.