how do our patients get the most out of mechanical …...how do our patients get the most out of...
TRANSCRIPT
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How do our patients get the most
out of Mechanical Ventilation
Jeff Brown
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Good Morning!
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How do our patients get the most out of
Mechanical Ventilation
Improve Ventilator capabilities
Improving Physicians understanding
Improve Respiratory therapists
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Types of Ventilation
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Types of Ventilation
Pressure
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Types of Ventilation
Pressure
Volume
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Types of Ventilation
Volume
Pressure
Negative Pressure
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Issues with ventilator understanding
Engineering issues
Understand the capabilities
NO universal language
Trade marking names of modes.
Modes
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Mechanical ventilator
What are capabilities and
limitations of the ventilator
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a way or manner in which something occurs or
is experienced, expressed, or done.
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SIMV
IMV
AC
AC/VC
VC-SIMV
AC/VC
DuoPAP
SCMV
SIMV/VC+
V V+SIMV
PRVC
VC+
ASV
VAPRV
VAPSV
VS
APRV
PC-SIMV
NAVA
PSV
AC/PC
BILEVEL PC
PCV+
CMV+AUTOFLOW
SIMV+AUTOFLOW
AUTO MODE(PRVC-VS)
PAV
PAV+
ATC
TC
BiPhasic
APC
“Auto modes” that incorporate two or more “modes”
Examples of Modes
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Basic MODES
Trigger Modes
Synchronized Intermittent-Mandatory
Ventilation (SIMV)
Assist-Control Ventilation (ACV)
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Basic MODES
Pressure Ventilation
• Pressure-Controlled Ventilation (PCV)
• Pressure Support Ventilation (PSV)
• Pressure Controlled Inverse Ratio Ventilation
(PCIRV)
• Airway Pressure Release Ventilation (APRV)
• Pressure Regulated Volume Control (PRVC)
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Basic MODES
Volume Ventilation
Volume Control Ventilation
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Issues in Naming modes
No industry wide consensus or rules in naming modes.
Modes taught differently by sales reps, physicians, educators and therapists.
New technology allows for mixing of breath types.
Not a lot of agreement on the definition of what constitutes a mode.
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Mechanical Ventilation
Example: BIPAP, and PSV over PEEP.
Are they the same thing?
Where is the PSV LEVEL or IPAP level
starting from? What do you chart ?
Absolute pressure applied or ending
pressure (PIP)?
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Ventilator Modes
Modes can be described by the following.
1. The control variable: the breath goal, volume or pressure.
2. The Trigger variable: That which starts the breath. Pt (Press and Flow) vs Time (TCT).
3. The Limit variable: Max allowed during insp. Vol., pressure, flow
4. The Cycle variable: That which terminates breath. Volume cycled or Time cycled
example: pt or time initiated, flow limited, volume cycled ventilation is …. VC/SIMV which is Generally called VC.
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Ventilator modes
Other things to consider
Control variable: Control generally refers to mandated breaths. Generally what is set on the vent which does not include spontaneous features.
Volume control: the breath is volume limited & the pressure is variable, flow is fixed
Pressure Control: Pressure is limited or targeted and volume is variable, Flow is variable on demand. PSV is a pressure based breath.
Dual: Volume targeted or guaranteed, pressure regulated, flow variable on demand
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Ventilator modes
Other things to consider
1. CMV generally means the mechanical vent breath, not the spontaneous breath. However new vent modes allow spont. breathing during the mechanical vent breath (APRV/BiLevel)
2. SIMV ventilator breath delivered when the patient makes an effort or if pt not breathing purely on TCT, so SIMV is pt or time cycled to on.
3. CSV purely spontaneous breathing with or without assistance. ie: PSV or CPAP
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Mechanical Ventilator Modes
and Increased WOB
If you don’t activate a breath when the
patient makes an effort…
If you don’t terminate a breath when the
patient attempts to exhale…..
It Causes….
Dys-synchrony
Increased WOB
Anxiety
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How do our patients get the most out of a
Mechanical ventilator
Ventilator capabilities
Physician
understanding
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Physician Understanding
Develop a understanding of not only the
capabilities but also limitations of ventilators
Incorporate modalities unique to a ventilator
when developing patient care plan.
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Mechanical ventilator
Ventilator capabilities
Therapist
understanding
Physician
understanding
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Respiratory Understanding
Develop a superior ventilator knowledge base .
Trouble shoot skills
Clear understanding of ventilator limitations
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Mechanical ventilator
Ventilator capabilities
Therapist
understanding
Physician
understanding
Success
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