Obstructive vs Restrictive Disease.pdf

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4/19/2011 Factors Affecting Compliance Compliance essentially means the volume change for any given pressure Compliance measures the distensibility of the lung tissue “Good” lung compliance to EMS means that the lungs expand easily Stiff lungs usually have lower volumes Factors Affecting Compliance The chest wall also must be taken into consideration Deformity of the chest wall may reduce lung volumes Obesity may reduce chest wall compliance 4/19/2011 ENMU-Roswell 7 4/19/2011 ENMU-Roswell 8 Scoliosis Comparison - Obstructive Anatomy affected - airways Breathing difficulty - expiration Pathophysiology - ↑ airway resistance Pulmonary functions – ↓ airway flow rates 4/19/2011 ENMU-Roswell 9 4/19/2011 ENMU-Roswell 10 Comparison - Restrictive Anatomy affected – lung tissue or thorax Breathing difficulty - inspiration Pathophysiology - ↓ lung, or thoracic, compliance Pulmonary functions – ↓ lung volumes, or capacities 4/19/2011 ENMU-Roswell 11 Graphic Air flow is slowed because of an obstruction to flow, either because of constriction, mucus or edema The person can breathe Expiration out quickly, but has stiff lungs, deformity, weak muscles in the thorax, etc… and is unable to take in a very deep breath 4/19/2011 ENMU-Roswell 12 2
4/19/2011 Not That You Care, But… Pulmonary Functions (What Is Measured) A Lot Of Diseases Have A Mixed Component Think about your “typical” end stage emphysema patient… Dilation of alveoli and terminal airways with loss of elasticity Airways collapse on exhalation, reducing flow Loss of generalized lung elasticity (chest wall changes also) Reduction in compliance 4/19/2011 ENMU-Roswell 13 4/19/2011 ENMU-Roswell 14 Inflammation A Bit About Inflammation 4/19/2011 ENMU-Roswell 15 4/19/2011 ENMU-Roswell 16 Inflammatory Response Over Time Treatments 4/19/2011 ENMU-Roswell 17 3
Page 1: 4/19/2011 Objectives Obstructive vs
Page 5 and 6: 4/19/2011 Desensitization vs. Downr

Obstructive vs Restrictive Disease.pdf

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