· pdf fileoxygen therapy and humidification ... confusion, cyanosis . oxygen therapy ... o2...
TRANSCRIPT
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Noninvasive Positive Pressure Ventilation (NPPV)
AND
Oxygen Therapy
กภ. สุวรรณ ศรีดาทองกุล
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The aims of rehabilitation
*to mobilize patients early **to facilitate weaning from mechanical ventilation ***to improve function by increasing strength and endurance
Outcome: Decreased Cost and Length of stay
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Intervention Approach Active Passive
Non-invasive ventilation
IPPB BiPAP CPAP Cough assist
Management of breathlessness
Respiratory muscle training IMT Breathing techniques Breathing / coughing
Airway clearance techniques Postural drainage and manual techniques Cough assist
Suctioning
Airway clearance devices PEP therapies
PEP Acapella Flutter Breath Max
Oxygen therapy and humidification
Ultraneb Breath Max Humidified High Flow
IBBP with Heat
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Before treatment : Precaution Prevention Action
GERD Check gastric content or 2hr.after meal
Hypoxia
Oxygenation
Sticky sputum , dry airway
NSS nebulizer or heat nebulizer*
Wheezing
Bronchodilator *
Restless ( intubated)
Sedative drug*
Wound pain Pain killer *
Nasal bleeding (edema)
Iliadin *
* Under doctor prescription
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Condition Clinical features Physical therapy program
Chronic lung disease eg. Bronchiectasis
- Hypersecretion - PD , percussion,vibration - Acapella
- Cough assist machine - ± suction
The intubated pediatric
- Ineffective cough by tube - Hypersecretion - atelectasis
- Modified PD , percussion,vibration
- chest expansion - chest mobilization - suction
Post extubation
- Increase WOB - Hypersecretion
- Atelectasis
- EzPAP , IPPB Avoid deep
suction eg.subglottic edema - Gently PD with vibration
Post surgery
- Wound pain - Hypersecretion
- Atelectasis
- Mechanical or manual vibration - Cliniflow ,acapella
- Cough assist machine - Breathing exercise - ± suction
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Condition Clinical features Physical therapy program
Neuromuscular disease
- Poor respiratory muscles strength and stamina + low FRC =
ineffective cough
- PD ,Percussion or vibration - Manually assisted cough or
mechanical cough assist - ± suction
Bronchiolitis - Productive cough with wheezing
- nasal congestion
- Clear upper airway - No percussion if wheezing
Asthma - Severe bronchospasm
- hypersecretion - atelectasis
- Avoid percussion and suction - PEP or PEP with oscillation to
prevent distal airway collapse - Breathing exercise : relaxation
Atelectasis - Non specific respiratory symptoms
- IPPB, EzPAP , Incentive spirometry ,breathing exc.
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Passive Techniques Practical concern
Postural drainage - According to pathological lobes - Avoid prone and head down :Abdominal distention, GERD - Wound pain - Tube care
Percussion and vibration
- No percussion in age < 1 months : use vibration technique
- Avoid aggressive percussion especially < 8 months
- If PEEP > 5cmH2O NO percussion - Mechanical vibration 10-15Hz
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Postural Drainage / Percussion / Vibration
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Vibrator
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Passive Techniques Practical concern
PSE: prolonged slow expiration (is a slow passive and progressive expiration from FRC to ERV)
- Useful for bronchiolitis patient - Head up 30 degree - No gastric content
Provoked cough (Briefly pressure on trachea at Suprasternal notch)
- Easily induce trauma
Cough ,huffing and Breathing exercise
- Poor cognitive ability - Passive or active or assistive devices
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Passive Techniques
Practical concern
Suction
- Oxygenation to prevent hypoxia - No use lubricate gel in Neonate and Infant to
prevent airway obstruction - NSS : aspiration , infection - 5-10sec., 3-5 times to prevent arrthymia - Sterile technique to prevent infection - limit pressure to prevent atelectasis and bleeding - Type 1. nasal aspiration :upper airway
2. nasopharyngeal or oropharyngeal : upper airway or lower airway ( stimulated coughing)
3. nasotracheal :neuromuscular disease
4. suction in tube
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Definition: Noninvasive Positive Pressure Ventilation (NPPV) is a ventilatory-assist technique used in the management of impending respiratory failure as an alternative to endotracheal intubation.
Acute respiratory failure
The primary objective of NIV is avoiding intubation and subsequently reducing mortality
Acute or chronic respiratory insufficiency
Secondary end points have faster improvement in gas exchanging and acid-base status, and reducing ICU and hospital stays
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Intermittent Positive Pressure Breathing IPPB with Heat humidifier
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Machine settings
• Sensitivity of 1 – 2 cm H2O
• Initial pressure between 10 – 20cm H20
• I:E ration of 1:3 to 1:4
• Flow and pressure will need subsequent adjustment
to patient’s needs and goal
Indications - Atelectasis not responsive to other therapies
[cough deep breath, and IS]
-Inability to clear airways due to inability to take
deep breaths
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IPPB(Cont.)
Contraindications – Tension pneumothorax
– ICP > 15 mm Hg
– Hemodynamic instability
– Recent facial, oral or skull surgery, Tracheoesophageal fistula
– Recent esophageal surgery
– Active hemoptysis
– Nausea
– Air swallowing
– Active, untreated TB
– Radiographic evidence of bleb
Hazards and Complications Increased airway resistance
Pulmonary barotrauma
Nosocomial infection
Respiratory alkalosis
Impaired venous return
Gastric distension
Air trapping, auto-PEEP, overdistension
Psychological dependence
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What does CoughAssist E70 do?
Non invasive alternative to deep suction
Can be given via facemask, mouthpiece,
endotracheal or tracheostomy tube
Simulates a cough
By applying a positive pressure (deep
insufflation) to the airway followed by a rapid shift
to a negative pressure to produce expiratory
flow from the lungs and effectively remove
secretions
Approved for adult and pediatric populations
Experiencing a natural cough
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Mechanical cough assist : Providing inspiratory pressure then fast expiratory flow = stimulates cough
: Apply oscillation
: For a patient using this device for the first time, it is advisable to begin with lower pressures, such as 10 – 15 cmH2O positive and negative pressure, and low inhale flow. It will familiarize the patient with the feel of mechanical insufflation-exsufflation.
: As the patient becomes more comfortable with the therapy, progressively increase the inspiratory and expiratory pressures by 5 – 10 cmH2O each sequence of 4 – 6 breaths. Effective pressures may be around 35 – 45 cmH2O
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Mechanical Insufflator-Exsufflator (Cough Assist)
Contraindication
• Bullous emphysema
• Pneumothorax or pneumo-mediastinum
• Recent Barotrauma
*Note*Patients with hemodynamic instability should
be carefully monitored
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Physiological effects of HFNC
Pharyngeal dead space washout
Reduction of nasopharyngeal resistance
Positive expiratory pressure (PEEP effect)
Alveolar recruitment
Humidification great comfort and better tolerance
Better control of FiO 2 and bettets mucociliary clearance
Humidifier with integrated flow generator
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Ultraneb
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Acapella : PEP + oscillation
• Flutter ve Acapella
• Utilizes internal expiratory vibrations
• Oscillating endobronchial pressure clears mucus from small airways
Acapella
Flutter
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PEP Therapy
Clear acapella with nebulizer
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INDICATIONS
-Patients with chronic pulmonary conditions, such as Cystic Fibrosis and Chronic Bronchitis, which predispose them to large volume sputum production.
-To reduce air trapping in asthma and COPD.
-To optimize delivery of bronchodilators in patients receiving bronchial hygiene therapy.
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EzPAP – Lung expansion
therapy during
inspiration and
PEP therapy
during
exhalation
– Used for the
treatment or
prevention of
atelectasis and
the mobilization
of secretions
– Aerosol drug
therapy may be
added to a PEP
session to
improve the
efficacy of
bronchodilator
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• 1. Patients unable to tolerate the increased work of
breathing (acute asthma, COPD)
• 2. Intracranial pressure (ICP) > 20 mm Hg
• 3. Hemodynamic instability
• 4.Recent facial, oral, or skull surgery or trauma
• 5. Acute sinusitis
• 6. Epistaxis
• 7. Esophageal surgery
• 8.Active hemoptysis
• 9. Nausea
• 10. Known or suspected tympanic membrane rupture
or other middle ear pathology
• 11. Untreated pneumothorax
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BreatheMAX
• Humidifier • IS • Intrabronchial vibrator • PEP • IMT • EMT
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CHEST PT
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Incentive spirometer Sustained maximum inspiration
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• There are 2 types
• Flow meter type
• Volume type
• Indications
1.To improve atelectasis
2.To prevent atelectasis
(post-op, COPD,
other pulmonary complications)
3.Mobilize secretions
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Force or hold breathing
No
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Inspiratory muscle training device
• Respiratory muscle endurance and strenght
• Cough efficiency Contraindication • Spontaneous pneumothorax • Traumatic pneumothorax after
complete recovery • Asthma patients who have low
symptom perception and who suffer from frequent sever exacerbations
• Recently experienced a perforated eardrum
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Mechanism
Examples
Disorders of ventilation
Decreased ventilatory drive Decreased mental status (eg, caused by head injury, oversedation, sepsis, shock, or stroke)
Obstructed ventilation Bronchospasm Dislodgement of endotracheal tube Mucus plugging of the airways or endotracheal tube
Severe pain in the chest, abdomen, or both
Rib fractures Thoracic or abdominal surgery
Disorders of oxygenation
Pulmonary causes Acute respiratory distress syndrome Atelectasis, pneumonia, pneumothorax, pulmonary embolus, pulmonary contusion, aspiration pneumonitis
Nonpulmonary causes Iatrogenic fluid overload Heart failure (eg, due to exacerbation of underlying disease or to acute MI
Causes of Oxygen Desaturation
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Oxygen Therapy
AIM
1.
2.
3.
Correct
Reduce
Reduce
Hypoxemia
work of breathing.
Myocardial work
PaO2 < 60 mmHg หรือ oxygen saturation < 90%
arterial hypoxemia tachypnea, tachycardia, agitation, confusion, cyanosis
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Oxygen Therapy
INDICATIONS: •
•
Hypoxemia PaO2 ≤ 60 torr or Acute care situation: – Find the problem
– Find the appropriate treatment
Severe trauma
Acute myocardial infarction.
SaO2 ≤ 90 %
•
•
• Short-term therapy, surgical intervention,
post-anesthesia recovery or HBO
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Oxygen therapy
To ensure safe and effective treatment remember:
Oxygen is a prescription drug.
Prescriptions should include
1.
2.
3.
4.
Flow rate.
Delivery system.
Duration.
Instructions for monitoring.
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Consideration factors
Severity of hypoxia and symptoms. –
–
–
Oxygen consumption and equipment.
Moisture content
Oxygen Therapy
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Oxygen Therapy
SETTING
The oxygen through
The oxygen through
normal airway.
artificial airway:
•
•
Endotracheal tube
Tracheostomy tube
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Oxygen Therapy
Oxygen sources
–
–
–
Oxygen
Oxygen
Oxygen
Cylinder
Pipeline
Concentrator
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Characteristics of oxygen delivery system
1. Low flow oxygen delivery system
“Variable performance” • Nasal cannula
• Simple mask
• Mask with reservoir bag
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Low flow oxygen
Type Flow FiO2
Nasal cannula
1 0.24 2 0.28 3 0.32 4 0.36 5 0.40 6 0.44
Simple Mask
5 – 6 0.40 – 0.50 6 – 7 0.50 – 0.60 7 - 8 0.60
Partial rebreathing
Mask
6 0.60 7 0.70 8 0.80 9 ≥ 0.90 10 ≥ 0.90
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Characteristics of oxygen delivery system
2. High flow oxygen delivery system
“Fixed performance” • Venturi mask
• Non-rebreathing mask
• Oxygen tent
• Incubator
• Mechanical ventilator
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Oxygen Therapy
Baby : < 6
Type Flow rate FiO2 Humidifier
Nasal cannula Infant : < 2
0.24 – 0.40 Bubble humidifier
Simple Mask 5 - 10 0.35 – 0.50 Bubble humidifier
Partial rebreathing Mask 6 - 10 0.40 – 0.60 Bubble humidifier
Non rebreathing Mask ≥ 10 0.60 – 0.80 Bubble humidifier
O2 Hood ≥ 7 0.30 – 0.70 Jet humidifier
O2 Tent 10 - 15 0.40 – 0.50 Jet humidifier
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Humidification
Humidifier Vs. Nebulizer
Humidifier
Nebulizer
Humidity
Gas
Aerosol
Characteristics of O2 delivery system
Low flow
High flow
FiO2
Variable
Fixed
Cost
Less
More
Infection
Less
More
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MONITORING
Skin colors
Conscious
Breathing pattern
Respiratory rate
Chest and Abdominal movement
Accessory muscle breathing
Breath sound Lung sound
SaO2
Other symptoms.
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Oxygen Therapy : Weaning
Tolerance of Weaning –
–
–
Consciousness
O2 > 90 %
HR change • ± 20, limit at
SBP change • ± 20, limit at
RR < 35 / min
Dyspnea
Lung sound
50 HR < 120
– 90 < SBP < 180
–
–
–
– Accessory muscle breathing
<
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Physical Therapy in Oxygen Weaning
Prophylaxis O2 Therapy
Acute hypoxemia
Dyspnea
During Suction
Lung disease
Cardiac disease
Neuro disease
Post operative
Pre/Post Exercise
Ambulate
Night Support
Fit to fly
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COMPLICATIONS
– Cut of hypoxemic ventilatory • Chronic hypoxic lung disease
• COPD
• Severe chronic asthma
• Bronchiectasis / Cystic fibrosis
• Chest wall disease
drive • Kyphoscoliosis
• Thoracoplasty
• Neuromuscular disease
• Obesity hypoventilation
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Denitrogenation absorption
Oxygen toxicity
Drying of secretion
Fire hazard
Retinopathy of prematurity
atelectasis
RESPIRATORYCARE•FEBRUARY2009 VOL54 NO2
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Peter C Gay MD. Complications of Noninvasive Ventilation in Acute Care. Respiratory. 2009; 54 NO2:246-258 .
PHILIP Respironic. Evaluation of Cough Assist (CA) Device with Adult Intensive Care Units (ICU)
J Bott, S Blumenthal, M Buxton S Ellum, C Falconer, R Garrod, A Harvey, T Hughes, M Lincoln, C Mikelsons, C Potter, J Pryor, L Rimington, F Sinfield, C Thompson, P Vaughn, J White, on behalf of the British Thoracic Society Physiotherapy Guideline Development Group . Guidelines for the physiotherapy management of the adult, medical, spontaneously breathing patient :Joint BTS/ACPRC guideline.