Heliox therapy .pptx

Heliox therapy for respiratory students

1. Heliox therapy R .Sam BSC Respiratory therapy

2. Introduction Breathing gas mixture of He ( Helium 80 %) and O2 ( Oxygen 20% ) Discovered in 1934 by Branch

3. Characteristics Colourless Odourless Tasteless Non -toxic Non- carcinogic Non- flammable Does not produce effect on human organs Does not cross alveolar capillary membrane

4. Physiological properties Low density gas ( reduce flow resistance) Low boiling point Low 5450melting point Second lowest density gas next to hydrogen Density 0.52 (Kg/m³ ) in 70/30 Concentration Density 0.40 ( kg / m3) in 80/20 concentration

5. Generate less airway resistance than air by decreased turbulance and require less mechanical energy to ventilate lungs Work of breathing is reduced

6. Mechanism INCREASE TENDANCY TO LAMINAR FLOW DECREASE RESISTANCE IN TURBULANT FLOW

7. Helium Diffuse 1: 8 Times faster than oxygen flow of heliox from an oxygen flowmeter 1:8 Times than normal flow Decrease airflow resistance within bronchial tree in obstructive lung disease and asthma attack

8. Heliox increase aerosol deposition mainly because of reduction in Turbulance and less impaction and Medication loss

9. Administration Via : Simple Nasal cannula High flow nasal cannul Non – rebreather mas . Nebulizer Invasive and non – invasive Ventilator

10. Concentration of gas mixture Helium : oxyGen 80 : 20 70 : 30 60 : 40 Most commonly used concentration is 80:20

11. 1.Upper Airway obstruction 2.Laryngeal obstruction 3.Subglottic stenosis 4.Acute vocal cord dysfunction 5.Bilateral vocal cord paralysis 6.Tracheobronchitis CLINICAL APPLICATIONS OF HELIOX THERAPY

12. CLINICAL APPLICATIONS OF HELIOX THERAPY 7. Endotracheal and endobronchial disease 8.Mediastinal mass compressing lung 9.COPD and Asthma exacerbations 10.Pneumonia with respiratory failure 11.Bronchiolitis 12. Ciliary dyskinesia

13. CLINICAL APPLICATIONS OF HELIOX THERAPY 13.Increase exercise performance 14.Diagnostic PFT to calculate FRC( Functional Residual Capacity) 15.Pulmonary Rehabilitation 16.Congenital Diaphragmmatic Hernia

14. 1.Anoxia oxygen level becomes zero or absence of oxygen 2.Hypothermia Caused mainly in Infants while using oxyhood HAZARDS OF HELIOX THERAPY

15. HAZARDS Words are badly distorted at pitch so high as to make it almost unintelligible because Helium goes through vocal cord.

16. HAZARDS Hypoxemia Volume induced lung injury during Mechanical ventilation