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Asthma: Screening, Diagnosis, Management, An Issue of Otolaryngologic Clinics of North America, E-Book

Asthma: Screening, Diagnosis, Management, An Issue of Otolaryngologic Clinics of North America, E-Book

Karen Calhoun

(2014)

Additional Information

Book Details

Abstract

Asthma as seen by Otolaryngologists as part of the patient workup, diagnosis, and treatment of the spectrum of disorders of asthma is presented. Otolaryngologists are frequently the de facto allergy specialist for patients presenting with asthma. ENT physicians will find current information for Data gathering and Interpretation (screening and testing), Diagnosis, combined surgical and non-surgical Treatment, and Basic Science related to Asthma in this publication.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Asthma: Screening,Diagnosis, and Management i
Copyright\r ii
Contributors iii
Otolaryngologic Clinics\rOf North America\r xi
Preface\r xiii
Why Otolaryngologists and Asthma Are a Good Match 1
Key points 1
Introduction 1
AR and asthma defined 2
Epidemiology 2
Asthma-Rhinitis Link 2
Genetics 3
Geography 3
Disease Severity 4
Environmental Factors Beyond Allergens 4
Pathophysiology 4
Inflammatory Response 5
Autonomic Response 5
Histopathology 5
Asthma and atopy 6
Diagnosis 6
Treatment 7
Summary 8
References 8
What is Asthma? Pathophysiology, Demographics, and Health Care Costs 13
Key points 13
What is asthma? 13
Diagnosis 14
The Unified Airway, Asthma, and the Otolaryngologist 15
Pathophysiology 15
Inflammation and Airway Remodeling 15
Bronchoconstriction and Airway Hyperresponsiveness 16
Genetics of Asthma 16
Risk Factors for Asthma 17
Demographics and epidemiology 17
Prevalence Internationally 17
Prevalence in the United States 18
Costs 18
Summary 19
References 19
Asthma 23
Key points 23
Overview 23
Symptoms 23
Wheezing 24
Cough and Mucus Production 25
Chest Tightness 25
Dyspnea 25
History Taking 25
Asthma by age group 26
Infants/Preschoolers 26
Elderly 27
Differential diagnoses 27
Neonates and Children 27
Adults 28
Classification of acute asthma exacerbations 28
Mild 28
Moderately Severe 28
Severe 28
Imminent Respiratory Arrest 29
Physical examination 29
Risk factors 30
Summary 30
References 30
Asthma Diagnosis in Otolaryngology Practice 33
Key points 33
Peak flow measurement 33
Pulmonary function testing 34
Spirometry 34
Bronchoprovocation 36
Diffusing Capacity 37
Lung Volume 37
Summary 37
Reference 37
Interpreting Spirometry 39
Key points 39
Introduction 39
Indications: who should be tested? 40
Spirometry measurements 40
Graphic representation of data 41
Flow-Volume Loops 41
Volume-Time Graph 46
Equipment 46
Quality Control/Calibration 47
Patient Participation/Contraindications 47
Procedure 49
Patient Data Entry/“Normative” Data 49
Office Personnel/Patient Instruction/Encouragement 49
Test Adequacy 49
Interpretation 50
Postbronchodilator Spirometry 50
Bronchoprovocation Challenge 52
Summary 52
References 52
Asthma Pharmacotherapy 55
Key points 55
Introduction 55
Beta-2 agonists 55
Short-Acting Beta-2 Agonists 55
Long-Acting Beta-2 Agonists 56
Anticholinergics 57
Corticosteroids 57
ICS 58
Oral Corticosteroids 59
Leukotriene modifiers 60
Theophylline 60
Mast cell stabilizers 60
Anti–immunoglobulin E therapy 61
Specific immunotherapy 61
Future therapy 62
Summary 62
References 62
Stepwise Treatment of Asthma 65
Key points 65
Critical changes in the third revision 67
Stepping through the process of stepwise care 71
The Asthma Diagnosis 71
Summary 75
References 75
Bronchial Thermoplasty 77
Key points 77
Introduction 77
Severe asthma 77
Pathophysiology 78
Results and efficacy 79
Preclinical Studies 79
Human Studies 79
Lung cancer, no asthma 79
Mild to moderate asthma 79
Technique 82
Practical applications 83
Patient Selection 83
Follow-Up 84
Potential Safety Concerns 84
Summary 85
Supplementary data 85
References 85
The Role of Fractional Exhaled Nitric Oxide in Asthma Management 87
Key points 87
FeNO: Why should I care? 87
What is FeNO? 87
What else affects FeNO measurement? 90
What other diseases affect FeNO? 90
How good is FeNO as a screen for asthma? 90
Can FeNO assist in choosing appropriate medications? 92
Is FeNO useful for assessing patient compliance and control? 92
Can following FeNO anticipate exacerbations and help prevent them? 93
Bottom line 93
References 94
Should Vitamin D Supplementation Be a Regular Part of Asthma Care? 97
Key points 97
Introduction 97
Calcitriol 97
Illnesses associated with calcitriol deficiency 98
Measuring vitamin D 99
Vitamin D affects immune function 99
Genetic control of vitamin D levels and the relation to asthma 100
Concomitant effects of vitamin D and calcium 100
Vitamin D effects on allergy and asthma 100
Vitamin D effects on immunotherapy and tolerogenesis 101
Vitamin D effects on inflammation and bronchial remodeling 102
Evidence of safety and efficacy of vitamin D supplements 102
Summary 104
Acknowledgments 105
References 105
Identifying Asthma Triggers 109
Key points 109
Introduction 109
Inhalant triggers 109
Inhalant allergy 111
Viral triggers 111
GERD or LPR 112
Medication triggers and aspirin-exacerbated respiratory disease 112
Paradoxic vocal fold dysfunction 114
Emotional triggers 114
Obesity 115
Rhinosinusitis 115
Summary 115
References 115
Exercise-induced Bronchoconstriction 119
Key points 119
Introduction 119
Diagnosis 120
Pharmacologic therapy 123
Nonpharmacologic therapy 123
Summary 124
References 124
Patient Education and Designing an Asthma Action Plan 127
Key points 127
Introduction 127
The oto-allergy clinic asthma assessment 128
Asking the right questions 128
The asthma control test 129
Using fractional exhaled nitric oxide 130
Peak expiratory flow 130
Spirometry 130
Asthma trigger avoidance education 131
Patient education folders 133
Customized asthma symptom and medication use tracking sheets 133
Further readings 134
Paradoxic Vocal Fold Movement Disorder 135
Key points 135
Introduction 135
Nature of the problem 135
Terminology 137
Epidemiology 137
Diagnosis and clinical findings: history 138
Diagnosis and clinical findings: physical examination 138
Diagnosis and clinical findings: diagnostic modalities 139
Management goals 141
Treatment: LCT with a speech language pathologist 141
Treatment: addressing underlying psychiatric issues 142
Treatment: elite athletes 142
Treatment: investigational therapies 142
Treatment: comorbid conditions 142
Treatment: self-management strategies 143
Treatment: recurrence 143
Summary 143
References 143
Other Asthma Considerations 147
Key points 147
Introduction 147
Aspirin-exacerbated respiratory disease 149
Foreign-body aspiration 150
Cough variant asthma or nonasthmatic eosinophilic bronchitis 150
Work-related asthma 151
HP 153
Churg-Strauss syndrome 155
Allergic bronchopulmonary aspergillosis 157
Summary 158
References 158
Index 161