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Cough: An Interdisciplinary Problem, An Issue of Otolaryngologic Clinics - E-Book

Cough: An Interdisciplinary Problem, An Issue of Otolaryngologic Clinics - E-Book

Kenneth W. Altman | Richard S. Irwin

(2010)

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Book Details

Abstract

Both acute and chronic cough are responsible for a significant number of ambulatory medical visits annually. The recent comprehensive understanding that “cough” is a reflection of underlying disease pays tribute to the multifactorial causes, as well recognition of the respiratory and upper digestive tract as a “physiologic unit.” This publication highlights the advances made in managing cough and brings these to otolaryngology practitioners in a concise forum, as well as presenting issues of special interest to laryngologists such as paradoxical vocal fold motion, disordered breathing, irritable larynx, evolution of the vagus as a protective circuit, the importance of cough in deglutition, and surgical interventions. Some of the topics include: The cough reflex, sensory receptors, and neurogenic mediators; Mucus and mucins; Cough and Swallowing dysfunction; Cough due to asthma, cough-variant asthma, and nonasthmatic eosinophilic bronchitis; Occupational, environmental, and irritant induced cough; Pharmacologic management; Unexplained cough; Cough in the pediatric population; and Rhinogenic laryngitis, cough and the unified airway; among others.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Contributors iii
Contents vii
Cough Specialists Collaborate for an Interdisciplinary Problem xv
Chapter 1. Cough: A Worldwide Problem 1
EPIDEMIOLOGY 1
COMPLICATIONS OF COUGH 2
CLASSIFYING COUGH ACCORDING TO DURATION 2
DIFFERENTIAL DIAGNOSIS FOR ACUTE COUGH 2
DIFFERENTIAL DIAGNOSIS FOR SUBACUTE COUGH 4
DIFFERENTIAL DIAGNOSIS FOR CHRONIC COUGH 5
CHRONIC BRONCHITIS 6
ANGIOTENSIN-CONVERTING ENZYME INHIBITORS 6
COMMON CLINICAL PROFILE 6
SUMMARY 10
REFERENCES 10
Chapter 2. Afferent Nerves Regulating the Cough Reflex: Mechanisms and Mediators of Cough in Disease 15
CHEMICAL AND MECHANICAL STIMULI THAT INITIATE COUGHING 15
AFFERENT NERVES REGULATING THE COUGH REFLEX 17
RAPIDLY ADAPTING RECEPTORS 19
COUGH RECEPTORS 20
AFFERENT NERVE INTERACTIONS IN COUGH AND MECHANISMS OF COUGH IN DISEASE 20
SUMMARY 21
REFERENCES 22
Chapter 3. Mucus and Mucins 27
COMPOSITION OF MUCUS AND PHLEGM 28
MUCIN SECRETION AND MUCUS CLEARANCE 30
UPPER AND LOWER AIRWAY MUCUS 31
THERAPY FOR MUCUS CLEARANCE DISORDERS 31
SUMMARY 32
REFERENCES 33
Chapter 4. Cough and Swallowing Dysfunction 35
COUGH AND DYSPHAGIA 38
FUNDAMENTALS OF SWALLOW ASSESSMENT 38
FUNDAMENTALS OF SWALLOWING THERAPY 40
SUMMARY 41
REFERENCES 41
Chapter 5. Vocal Cord Dysfunction, Paradoxic Vocal Fold Motion, or Laryngomalacia? Our Understanding Requires an Interdisciplinary Approach 43
A HISTORICAL PERSPECTIVE 43
FOCUSING ON THE BIG PICTURE 45
WHAT DIAGNOSES ARE IN THE DIFFERENTIAL? 46
HOW DO WE ADDRESS COUGH? 46
DIFFERENCES AMONG PERIODIC OCCURRENCE OF LARYNGEAL OBSTRUCTION DISORDERS 47
ENDOSCOPIC EVALUATION 48
PARADOXIC VOCAL FOLD MOTION 49
VOCAL CORD DYSFUNCTION 49
INTERMITTENT ARYTENOID REGION PROLAPSE 52
THE THREE CATEGORIES OF PERIODIC OCCURRENCE OF LARYNGEAL OBSTRUCTION 53
VOCAL CORD DYSFUNCTION AND MASS PSYCHOGENIC ILLNESS 56
COUGH 57
HYPOTHESES FOR ORIGIN OF SOME LARYNGEAL DISORDERS 57
PULMONARY DIAGNOSTICS 58
VOCAL CORD DYSFUNCTION MANAGEMENT 60
SUMMARY 62
REFERENCES 63
Chapter 6. Evidence for Sensory Neuropathy and Pharmacologic Management 67
CLINICAL EVALUATION 68
TREATMENT OPTIONS 69
PHARMACEUTICALS FOR TREATMENT OF PVVN 69
SUMMARY 71
REFERENCES 72
Chapter 7. The Role of Voice Therapy in the Management of Paradoxical Vocal Fold Motion, Chronic Cough, and Laryngospasm 73
LARYNGOSPASM 74
PARADOXICAL VOCAL FOLD MOTION 75
CHRONIC COUGH 75
SUMMARY 81
APPENDIX 1. PRODUCT REFERENCES FOR RESISTANCE BREATHING DEVICES 81
REFERENCES 82
Chapter 8. Occupational, Environmental, and Irritant-Induced Cough 85
RESPIRATORY TRACT EFFECTS OF IRRITANTS 85
ALLERGEN VERSUS IRRITANT 86
ROLE OF ODOR 86
OCCUPATIONAL, ENVIRONMENTAL, AND IRRITANT-INDUCED COUGH 88
WORLD TRADE CENTER COUGH 88
EVOLUTION OF IRRITANT-INDUCED COUGH 89
IRRITANT-INDUCED COUGH, A TRPPATHY 90
REFERENCES 92
Chapter 9. Reflux and Cough 97
PATHOPHYSIOLOGY OF REFLUX 98
THE LES AND TRANSIENT LES RELAXATION 98
HOW DOES REFLUX AFFECT THE LARYNX AND UPPER AIRWAY? 100
COUGH: REFLUX OR REFLEX? 100
COUGH IN REFLUX: CLINICAL EVALUATION 101
TREATMENT 103
ALGINATE 104
COMPLICATIONS RELATED TO PPI THERAPY 104
PROKINETIC THERAPY 105
SURGERY 106
SUMMARY 107
REFERENCES 107
Chapter 10. Rhinogenic Laryngitis, Cough, and the Unified Airway 111
LARYNGEAL INVOLVEMENT IN THE UNIFIED AIRWAY 112
MUCUS, NEUROLOGIC REFLEXES, AND NEUROGENIC INFLAMMATION 114
DIAGNOSIS OF CHRONIC RHINOGENIC LARYNGITIS 115
MODEL FOR CHRONIC RHINOGENIC LARYNGITIS 117
SUMMARY 119
REFERENCES 119
Chapter 11. Cough Due to Asthma, Cough- Variant Asthma and Non-Asthmatic Eosinophilic Bronchitis 123
DEFINITION, DIAGNOSIS, AND PREVALENCE 123
EXHALED NITRIC OXIDE AS A SURROGATE FOR SPUTUM EOSINOPHILIA 125
PATHOGENESIS 125
DISEASE PROGRESSION 126
TREATMENT 127
SUMMARY 128
REFERENCES 128
Chapter 12. The Spectrum of Nonasthmatic Inflammatory Airway Diseases in Adults 131
CHRONIC BRONCHITIS 132
BRONCHIECTASIS 135
BRONCHIOLITIS IN ADULTS 140
REFERENCES 143
Chapter 13. Pharmacologic Management of Cough 147
ANTITUSSIVES 147
SUMMARY 153
ACKNOWLEDGMENTS 153
REFERENCES 153
Chapter 14. Assessing Efficacy of Therapy for Cough 157
SUBJECTIVE ASSESSMENTS OF COUGH 158
COUGH REFLEX SENSITIVITY TESTING 160
OBJECTIVE COUGH COUNTING 161
HEALTH-RELATED QUALITY OF LIFE 162
SELECTING PATIENT GROUPS FOR TESTING COUGH THERAPIES 162
CLINICAL TRIAL DESIGN 163
SUMMARY 164
REFERENCES 164
Chapter 15. Unexplained Cough in the Adult 167
UNEXPLAINED VERSUS IDIOPATHIC COUGH 167
HOW OFTEN IS CHRONIC COUGH UNEXPLAINED, AND WHAT ARE THE POTENTIAL EXPLANATIONS? 168
HOW SHOULD CLINICIANS AND RESEARCHERS APPROACH THE PROBLEM? 168
WHAT ARE THE PITFALLS IN MANAGEMENT, AND HAVE THEY BEEN AVOIDED? 170
HOW OFTEN WILL CHRONIC COUGH REMAIN TRULY UNEXPLAINED AFTER THE RECOMMENDED MANAGEMENT PROTOCOL HAS BEEN FOLLOWED? 175
WHAT ARE THE POTENTIAL PATHOGENIC MECHANISMS TO EXPLAIN THE TRULY REFRACTORY, UNEXPLAINED COUGH? 176
WHAT MANAGEMENT OPTIONS ARE AVAILABLE FOR THE TRULY REFRACTORY UNEXPLAINED COUGH? 177
SUMMARY 178
REFERENCES 178
Chapter 16. Cough in the Pediatric Population 181
EPIDEMIOLOGY DATA 182
PATHOPHYSIOLOGY 182
ETIOLOGIC FACTORS 183
EVALUATION OF CHILDREN WITH CHRONIC COUGH 187
REFERENCES 193
Chapter 17. Future Directions in Treating Cough 199
ACUTE AND CHRONIC COUGH—THE EXTENT OF THE PROBLEM 199
OPTIMIZING THE EXISTING PROTOCOLS FOR THE MANAGEMENT OF COUGH 200
DEVELOPMENTS IN THE DIAGNOSIS AND TREATMENT OF THE COMMON TRIAD OF COUGH ETIOLOGIES 201
COUGH REFLEX HYPERSENSITIVITY AND ITS ASSOCIATION WITH COMMON ACUTE AND CHRONIC COUGH SYNDROMES 203
THE DEVELOPMENT OF NEW TREATMENTS FOR COUGH 205
SUMMARY 207
REFERENCES 207
Index 213