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Textbook of Laryngology
Nupur Kapoor Nerurkar, Amitabha Roychoudhury
SECTION 1: HISTORY AND BASIC SCIENCES
CHAPTER 1:
A Historical Review of Laryngology
INTRODUCTION
Early Days
Laryngoscopy
Voice
Physiology
Pathology
Surgery
What lies ahead?
Synopsis
CHAPTER 2:
Anatomy of the Larynx
INTRODUCTION
CARTILAGES
Epiglottis
Thyroid Cartilage
Cricoid Cartilage
Arytenoid Cartilages
Corniculate and Cuneiform Cartilages
MUSCLES
Intrinsic Muscles
Lateral Cricoarytenoid
Thyroarytenoid
Interarytenoid
Posterior Cricoarytenoid
Cricothyroid
Extrinsic Muscles
LIGAMENTS AND MEMBRANES
Thyrohyoid Membrane
Cricothyroid Membrane
Quadrangular Membrane
Conus Elasticus
Vasculature
SPACES IN THE LARYNX
Ventricle
Paraglottic Space
Vocal Folds
Age- and Gender-Related Differences in Vocal Fold Structure
CONCLUSION
CHAPTER 3:
Physiology of Phonation
INTRODUCTION
A. Infraglottic Vocal Tract
B. Phonating System
Pitch
Intensity
Vocal Registers
Loft Register (Falsetto)
Modal Register
Pulse Register (Glottal Fry, Vocal Fry or Creaky Voice)
C. Supraglottic Vocal Tract (Resonating System)
D. Histologic Anatomy of the Vocal Fold
Epithelium
Lamina Propria
Basement Membrane Zone
Histological Variations
Lamina Propria Components
E. Neural Control
CONCLUSION
CHAPTER 4:
Physiology of Swallowing
INTRODUCTION
EVOLUTION
ANATOMY
Muscles
Neural Control
PHYSIOLOGY OF SWALLOWING
Oral Preparatory Phase
Oral Propulsive Phase
Pharyngeal Phase
Esophageal Phase
NEUROPHYSIOLOGICAL CONTROL
Cortical control
Swallowing Central Pattern Generator Control
COORDINATION WITH RESPIRATION
Coordination of Swallowing with Respiration, Phonation, and Mastication
The Cranial Nerves
Esophageal Peristalsis
Upper Esophageal Sphincter and Lower Esophageal Sphincter
VARIATIONS IN SWALLOWING
Development of the Human Aerodigestive Tract and Changes with Age
CONCLUSION
THE FUTURE
SECTION 2: CLINICAL ASSESSMENT AND OFFICE PROCEDURES
CHAPTER 5:
Clinical Evaluation in a Patient with a Voice Disorder
INTRODUCTION
DEFINITIONS
Voice
Hoarseness
HISTORY
VOCAL CAPABILITIES PATTERN MATCHING
Orienting the Visual Examination
Documentation of the Voice
Pitch: Comfortable Pitch: Reading Task
Pitch: Comfortable Pitch: Maximum Phonation Time
Pitch: Vocal Range: Low Pitch
Pitch: Vocal Range: High Pitch
Volume: Loud: Yell
Volume: Loud: Vegetative Sounds
Volume: Soft: Swelling Tests
CONCLUSION
CHAPTER 6:
Stroboscopy, High-Speed Imaging, Videokymography and Optical Coherence Tomography
INTRODUCTION
VIDEOSTROBOSCOPY
Normal Phonation
Principles of Stroboscopy
Stroboscope
Technique
Parameters
Advantages
Disadvantages
HIGH-SPEED LARYNGEAL IMAGING
VIDEOKYMOGRAPHY
OPTICAL COHERENCE TOMOGRAPHY
SYNOPSIS
CHAPTER 7:
Voice Analysis and Therapy Planning by an SLP
INTRODUCTION
INITIAL REFERRAL
VOICE ASSESSMENT
VOICE EVALUATION
Case History
Patient-reported Impact
Psychoacoustic/Subjective Evaluation of Voice
Musculoskeletal and Postural Assessment
Objective Voice Assessment
VOICE THERAPY
Patient Selection
Planning
Vocal Education and Listening Skills
Vocal Hygiene
Vocal Rehabilitation
Musculoskeletal/Laryngeal Relaxation
Manual Therapy
Respiration
Emotional and Psychological Considerations
Professional Voice Users
EVALUATION OF THERAPEUTIC OUTCOME
WHEN VOICE THERAPY IS UNSUCCESSFUL
CONCLUDING REMARKS
CHAPTER 8:
Clinical Evaluation in a Patient with Dysphagia with Role of FEESST, VFS and TNE
INTRODUCTION
HISTORY TAKING
IS LOCALIZATION HISTORY IMPORTANT?
CAUSES
CLINICAL ASSESSMENT 1
Clinical Swallow Evaluation (Box 3)
CLINICAL ASSESSMENT 2
Flexible Endoscopic Evaluation of Swallowing
Procedure
Flexible Endoscopic Evaluation of Swallowing and Sensory Testing
Pharyngeal Squeeze Maneuver and Laryngeal Adductor Response
PREDICTION OF ASPIRATION
FLUOROSCOPIC EVALUATION OF SWALLOWING
PENETRATION ASPIRATION SCALE20
TRANSNASAL ESOPHAGOSCOPY
HIGH-RESOLUTION MANOMETRY
PH MONITORING
CHAPTER 9:
Imaging of the Larynx
INTRODUCTION
CROSS-SECTION IMAGING
BASIC ANATOMY
LARYNGEAL SPACES
Important Radioanatomy
LARYNGEAL CARCINOMA
Supraglottic Carcinoma
Glottic Carcinoma
Subglottic Carcinoma
Transglottic Carcinoma
VITAL IMAGING FINDINGS
CARTILAGE INVASION
Computed Tomography
Magnetic Resonance Imaging
NODAL DISEASE (N-STAGING)
SYSTEMIC METASTASES (M-STAGING)
POSTTREATMENT IMAGING
OTHER LARYNGEAL TUMORS
NEOPLASM OF LARYNGEAL SKELETON
TUMORS OF LYMPHORETICULAR SYSTEM
Lymphoma
Plasmacytoma
TUMORS OF MINOR SALIVARY GLANDS
VASOFORMATIVE TUMORS
LIPOMA
METASTASES
VOCAL CORD PALSY
Causes of Vocal Cord Palsy
Findings of Vocal Cord Palsy26
Primary Signs (Figs. 20A to C)
Secondary Signs
LARYNGOCELE
TRAUMA
INFLAMMATORY/INFECTIVE CONDITIONS
LARYNGEAL STENOSIS
CHAPTER 10:
Injection Laryngoplasty
INTRODUCTION
PRINCIPLE OF INJECTION LARYNGOPLASTY
HISTORICAL BACKGROUND
INDICATIONS FOR INJECTION LARYNGOPLASTY
PATIENT SELECTION
CONTRAINDICATIONS
MATERIALS USED
Short-term (Up to 2 Months)
Gelfoam
Carboxymethylcellulose (Voice Gel)
Intermediate (2–12 Months)
Hyaluronic Acid Derivatives
Collagen Derivatives
Long Term (1–2 Years)
Calcium Hydroxylapatite
Autologous Fascia
Permanent
Teflon
Silicon
Autologous Fat
PERCUTANEOUS OFFICE INJECTION LARYNGOPLASTY
Equipment Required
Techniques
Transthyroid Technique
Flexible Endoscopic Injection Technique
Peroral Injection Technique
Microlaryngoscopic Injection
COMPLICATIONS OF INJECTION LARYNGOPLASTY
FUTURE RESEARCH
CHAPTER 11:
Office-Based Vocal Fold Procedures
INTRODUCTION
HISTORICAL ASPECTS
OFFICE-BASED VOCAL FOLD PROCEDURES—APPLICATIONS
Preparation and Selection of the Patient3
Position of the Patient
Methods of Topical Anesthesia for Office-based Vocal Fold Procedures
Office-based Vocal Fold Injection Techniques
Indications for Office-based Vocal Fold Injection Techniques
OFFICE-BASED VOCAL FOLD INJECTION TECHNIQUES—APPROACHES
Total Transnasal Endoscopic Vocal Fold Injections
Transoral Vocal Fold Injections Assisted with Transnasal Flexible Endoscopy
Percutaneous (Transcervical) Vocal Fold Injections Assisted with Transnasal Flexible Endoscopy
Transthyrohyoid Membrane Approach
Transthyroid Cartilage Approach
Transcricothyroid Membrane Approach
COMPLICATIONS OF VOCAL FOLD INJECTION TECHNIQUES
OFFICE-BASED VOCAL FOLD BIOPSIES AND LARYNGEAL LASER SURGERIES
Technique of Anesthesia6
Position of Patient
Approach
OFFICE-BASED (VOCAL FOLD) LARYNGEAL LASER SURGERY
Selection of Wavelength of Laser for Unsedated Office-based Laryngeal Laser Surgeries
Limitations of Office-based Laryngeal Laser Surgeries2
Contraindications for Office-based Laryngeal Laser Surgeries2
CONCLUSION
CHAPTER 12:
Laryngeal Electromyography in Spasmodic Dysphonia and Overview of Spasmodic Dysphonia
INTRODUCTION
HISTORICAL ASPECTS
SUBJECT MATTER
NEW HORIZONS
CONCLUSION
SECTION 3: PHONOSURGERY
CHAPTER 13:
Principles and Essentials of Phonomicrosurgery
INTRODUCTION
HISTORICAL CONSIDERATIONS
ANATOMY OF THE VOCAL FOLD
EQUIPMENT
PREOPERATIVE ASSESSMENT
ANESTHETIC CONSIDERATIONS
EXPOSURE
PROCEDURE
Medial Microflap Technique4
POSTOPERATIVE CONSIDERATIONS
NEW HORIZONS
CONCLUSION
CHAPTER 14:
Nodules and Polyps
INTRODUCTION
ETIOLOGY
PATHOPHYSIOLOGY AND PATHOLOGY
CLINICAL PRESENTATION AND DIAGNOSIS
TREATMENT
INTRODUCTION
ETIOLOGY AND PATHOGENESIS
PATHOLOGY
CLINICAL PRESENTATION AND DIAGNOSIS
TREATMENT
CONCLUSION
CHAPTER 15:
Cysts, Sulci and Mucosal Bridge
INTRODUCTION
SUBEPITHELIAL CYSTS
MUCOUS RETENTION CYST
EPIDERMOID CYST
VOICE, VIDEOSTROBOSCOPY, AND NARROW BAND IMAGING IN A PATIENT WITH A SUBEPITHELIAL CYST
MANAGEMENT
PREOPERATIVE THERAPY AND COUNSELING
PSEUDOCYST AND PARESIS PODULE
SULCUS VOCALIS
Type 1 (Physiological Sulcus)
Type 2 (Linear Vergeture/Sulcus Vergeture)
Type 3 (Focal Pit/Sulcus Vocalis)
ETIOLOGY
VOICE AND VIDEOSTROBOSCOPY
PSEUDOSULCUS
MANAGEMENT OF SULCUS
INCISION AND FLAP REPOSITION
EXCISION AND SUTURING
FAT INJECTION
FAT IMPLANTATION
PONTES TECHNIQUE
THYROPLASTY
GRAY MINITHYROTOMY
HYALURONIC ACID INJECTION
MUCOSAL BRIDGE
NEW HORIZONS
CONCLUSION
CHAPTER 16:
Lasers in Phonomicrosurgery
INTRODUCTION
SUBEPITHELIAL INFILTRATION TECHNIQUE AND MINI-MICROFLAP DISSECTION
HISTORICAL ASPECTS
LASER PHYSICS
CO2 Laser
ADVANCED LASER ACCESSORIES
Superpulse and Ultrapulse Modes
AcuSpot® Micromanipulator, Scanner, AcuBlade®
LASER SAFETY PROTOCOLS
Protection of OR Personnel
Patient Protection
Airway Protection
SPECIFIC CONSIDERATION OF VARIOUS BENIGN VOCAL FOLD PATHOLOGIES
Vocal Fold Polyp
Vocal Fold Vascular Lesions
Subepithelial Vocal Fold Cyst
Glottic Web
Cohen's Classification
Treatment
Reinke's Edema (Polypoid Corditis)
Sulcus Vocalis
Excision with Reapproximation
Recurrent Respiratory Papillomatosis
Leukoplakia
Chronic Granulomatous Diseases
Photoangiolytic Lasers
CONCLUSION
CHAPTER 17:
Lasers in Early Glottic Cancer
INTRODUCTION
HISTORICAL ASPECTS
DYSPLASIA AND EARLY GLOTTIC CANCERS
Leukoplakia
Early Glottic Cancer
PREOPERATIVE DIAGNOSTICS
In Office
Imaging
In Theater
TYPES OF LASERS
CO2 Laser—AcuBlade® Scanner System
ADVANTAGES OF LASER SURGERY
Surgical Procedures—Cordectomy (According to the European Laryngological Society 2000, 2007)
Subepithelial Cordectomy (Type I)
Subligamental Cordectomy (Type II)
Transmuscular Cordectomy (Type III)
Total or Complete Cordectomy (Type IV)
Extended Cordectomies (Types Va–d)
Type VI—Anterior Commissure and Unilateral/Bilateral Anterior Vocal Folds
ANESTHETIC CONSIDERATIONS
THEATER CONSIDERATIONS
POSTOPERATIVE MANAGEMENT AND FOLLOW-UP
CONTROVERSY
NEW HORIZONS
CONCLUSION
CHAPTER 18:
Principles of Laryngeal Framework Surgery
INTRODUCTION
HISTORY
INDICATIONS
PREPARATION FOR SURGERY
CONTRAINDICATIONS
COMPLICATIONS
THE FUTURE
CHAPTER 19:
Unilateral Vocal Fold Paralysis and Medialization Laryngoplasty
INTRODUCTION
HISTORICAL ASPECTS
ANATOMY AND PHYSIOLOGY
ETIOLOGY
EVALUATION
History
Physical Examination
Further Studies
MANAGEMENT
SURGICAL TREATMENT OPTIONS
Injection Augmentation
Laryngeal Framework Surgery
Medialization Laryngoplasty
Arytenoid Repositioning
Laryngeal Reinnervation
SPECIAL CONSIDERATIONS
Vocal Fold Paresis
Isolated Superior Laryngeal Nerve Paralysis
Mechanical Vocal Fold Fixation
Pediatric Patients
Revision Surgery
NEW HORIZONS
CONCLUSION
CHAPTER 20:
Surgical Treatment of Spasmodic Dysphonia
INTRODUCTION
CLINICAL DIAGNOSIS
PATHOPHYSIOLOGY
BOTULINUM TOXIN INJECTION
For Adductor Spasmodic Dysphonia
For Abductor Spasmodic Dysphonia
SURGERY FOR SPASMODIC DYSPHONIA
Recurrent Nerve Avulsion
Selective Denervation with Reinnervation
Type 2 Thyroplasty
Endoscopic Laser Thyroarytenoid Myomectomy
Thyroarytenoid Myomectomy
CHAPTER 20:
Puberphonia and Relaxation Laryngoplasty
INTRODUCTION
DEVELOPMENTAL ASPECTS
INCIDENCE
CAUSES
CLINICAL FEATURES
DIFFERENTIAL DIAGNOSIS
TREATMENT
Voice Therapy
Digital Laryngeal Manipulation
Laryngeal Manipulation
Botox Injection
Surgical
RELAXATION LARYNGOPLASTY OR THYROPLASTY TYPE 3
INDICATIONS
PROCEDURE
COMPLICATIONS
CHAPTER 22:
Feminizing Laryngoplasty
INTRODUCTION
NATURE'S COURSE
DEVELOPMENT OF FEMINIZING PITCH CHANGE SURGERY
TREATMENT
Medical
Therapy
Surgery
Anterior Commissure Advancement
Cricothyroid Approximation
Webbing of the Anterior Half of the Membranous Vocal Cord
Laser Tightening
Laser Tune-up as a Variation
Feminization Laryngoplasty—FemLar
Thyrohyoid Elevation
Pharyngeal Reduction
Tracheal Shave
NEW HORIZONS
CONCLUSION
CHAPTER 23:
Recurrent Respiratory Papillomatosis and Narrow Band Imaging
INTRODUCTION
EPIDEMIOLOGY
STAGING
NARROW BAND IMAGING
CLINIC
TREATMENT
CONCLUSION
SYNOPSIS
ACKNOWLEDGMENT
CHAPTER 24:
Glottic Web
INTRODUCTION
HISTORICAL ASPECTS
ANTERIOR GLOTTIC WEBS
Congenital
Acquired
ENDOSCOPIC TECHNIQUES
OPEN TECHNIQUES
NEW HORIZONS
CONCLUSION
CHAPTER 25:
Considerations in the Professional Voice User
INTRODUCTION
ASSESSMENT OF THE PROFESSIONAL VOICE USER
History
PROFESSIONAL VOICE USER EXAMINATION
Examination of Voice
Maximum Phonation Time
Vocal Range
Larynx
OTHER CONSIDERATIONS
Age
Aging Voice
Voice Abuse/Misuse
Role of Medication
Menstrual Cycle and Endocrine Irregularities
MANAGEMENT
Timing
Vocal Emergencies (UK Perspective)
ROLE OF VOICE TEACHER AND SPEECH AND LANGUAGE THERAPY
WHEN TO OPERATE, WHEN NOT TO OPERATE
HOW TO OPERATE
POSTOPERATIVE CONSIDERATIONS
SUMMARY
SECTION 4: INFLAMMATORY, ENDOCRINE AND FUNCTIONAL VOICE DISORDERS
CHAPTER 26:
Localized Inflammatory and Infective Laryngeal Disorders
INTRODUCTION
SYMPTOMATOLOGY
NONOBSTRUCTIVE LARYNGITIS OR SIMPLE LARYNGITIS
OBSTRUCTIVE LARYNGITIS
Acute Epiglottitis
Clinical Features
Medical Management
Airway Management
ACUTE LARYNGOTRACHEOBRONCHITIS OR CROUP
Clinical Features
Management
LARYNGEAL DIPHTHERIA
PERTUSSIS
EDEMA OF LARYNX
ANGIONEUROTIC EDEMA
ACUTE LARYNGEAL INFECTIONS OF ADULTS
Conditions That May Mimic Acute Laryngeal Infections
CHRONIC LARYNGITIS
Etiology
Clinical Features
Treatment
REINKE'S EDEMA
Examination
Treatment
CHRONIC GRANULOMATOUS LARYNGITIS
TUBERCULOSIS
SYPHILIS
LEPROSY
SARCOIDOSIS
WEGENER'S GRANULOMATOSIS
CANDIDIASIS
HISTOPLASMOSIS
BLASTOMYCOSIS
ACTINOMYCOSIS
RHINOSCLEROMA
RADIATION-INDUCED LARYNGITIS
INTUBATION GRANULOMAS
LARYNGOPHARYNGEAL REFLUX DISEASE
Clinical Features
Treatment
NEW HORIZONS
CONCLUSION
CHAPTER 27:
Systemic Inflammatory Disorders
INTRODUCTION
GRANULOMATOSIS WITH POLYANGIITIS
Clinical Findings
Diagnosis
Management
RHEUMATOID ARTHRITIS
Clinical Findings
Diagnosis
Management
AMYLOIDOSIS
Clinical Findings
Diagnosis
Management
RELAPSING POLYCHONDRITIS
Clinical Findings
Diagnosis
Management
MUCOUS MEMBRANE PEMPHIGOID
Clinical Findings
Diagnosis
Management
SYSTEMIC LUPUS ERYTHEMATOSUS
Clinical Findings
Diagnosis
Management
IGG4-RELATED DISEASE
Clinical Findings
Diagnosis
Management
CHAPTER 28:
Laryngopharyngeal Reflux Disease
INTRODUCTION
ESOPHAGEAL PHYSIOLOGY AND LARYNGOPHARYNGEAL REFLUX PATHOLOGY
GASTROESOPHAGEAL REFLUX DISEASE
LARYNGOPHARYNGEAL REFLUX DISEASE
Pathophysiology of Laryngopharyngeal Reflux
Upper Esophageal Sphincter
Intrinsic Esophageal Acid Clearance Mechanism
Esophageal Epithelial Resistance
Mechanism of Laryngopharyngeal Reflux
Reflexes of Larynx and Pharynx
CLINICAL MANIFESTATION OF LARYNGOPHARYNGEAL REFLUX
Voice Disorders
Granulomas
Laryngospasm
Laryngeal Stenosis
Laryngeal Cancers
DIAGNOSTIC CRITERIA
Reflux Symptoms Index
24 Hours pH Monitoring
Laryngopharyngeal Reflux Disease in Children and Young People
Medical Treatment
Role of Surgery in Laryngopharyngeal Reflux
FOLLOW-UP OF PATIENTS WITH LARYNGOPHARYNGEAL REFLUX
CHAPTER 29:
Endocrine and Neurological Disorders
INTRODUCTION
EFFECTS OF SEX HORMONES ON LARYNX AND VOICE
Estrogens
Progesterone
Androgens
PREMENSTRUAL VOICE SYNDROME
MENOPAUSAL VOICE SYNDROME
Female Voice
Thyroid Disorders
Parathyroid Disorders
Adrenal Insufficiency
Congenital Adrenal Hyperplasia
Diabetes
INTRODUCTION
MYASTHENIA GRAVIS
PARKINSON'S DISEASE
LARYNGEAL TREMOR
KEY DIFFERENCES
Types of Dystonic Tremor
MANAGEMENT OF DYSTONIC TREMOR
MOTOR NEURONE DISEASE (MND)
CHAPTER 30:
Muscle Tension Dysphonia
INTRODUCTION
EVOLUTION OF TERMINOLOGY AND CLASSIFICATION
ETIOLOGY AND PATHOPHYSIOLOGY
TYPE 1 MTD (LARYNGEAL ISOMETRIC)
TYPE 2 MTD (LATERAL CONTRACTION AND/OR HYPERADDUCTION)
Subtype 2a (Glottic)
Subtype 2b (Supraglottic)
TYPE 3 MTD (ANTEROPOSTERIOR CONTRACTION)
SPHINCTERIC LARYNX
PATIENT EVALUATION AND DIAGNOSIS
History
Physical Examination
Inspection
Palpation
Endolaryngeal Examination
Laryngeal Electromyography
DIFFERENTIAL DIAGNOSIS
MANAGEMENT
Indirect Voice Therapy
Direct Voice Therapy
Medical Therapy
Topical Lidocaine
Botulinum Toxin
Surgical Treatment
CONCLUSION
SECTION 5: AIRWAY AND SWALLOWING
CHAPTER 31:
Assessment of a Stridulous Patient
INTRODUCTION
HISTORY
PHYSICAL EXAMINATION
ENDOSCOPIC EVALUATION
Transnasal Fiberoptic Laryngoscopy (Fig. 2)
Rigid Endoscopy
Suspension Microlaryngoscopy (Fig. 7)
Bronchoscopy
Esophagoscopy
Radiodiagnosis
CONCLUSION
CHAPTER 32:
Pediatric Airway—An Overview
INTRODUCTION
HISTORICAL ASPECTS
ANATOMICAL CONSIDERATIONS
EVALUATION OF A STRIDULOUS CHILD
MANAGEMENT
LARYNGOMALACIA
Subglottic Hemangiomas
Propranolol Therapy for Hemangiomas
Laryngotracheal Stenosis
Myer-Cotton Staging System for Subglottic Stenosis
NEW HORIZONS
EXIT to Airway Procedures
CONCLUSION
CHAPTER 33:
Bilateral Vocal Fold Paralysis
INTRODUCTION
RELEVANT ANATOMY (Fig. 1)
ETIOLOGIC FACTORS
Iatrogenic Trauma
External Laryngeal Trauma
Viral Infections
Neoplasms or Diseases within the Neck or Upper Mediastinum
Neurologic Causes10
Closed Head Injuries and Cerebrovascular Accidents
Radiation Injury
Metabolic Causes
Toxins
Idiopathic
ETIOLOGY IN CHILDREN
Central Neurologic Abnormalities
Traumatic
Idiopathic Causes
Iatrogenic Causes
Inflammatory and Infectious Causes
POSITION OF CORDS
Synkinesis and Reinnervation
CLINICAL PRESENTATION
Presentation in Children
DIAGNOSIS
Endoscopic Evaluation for Confirmation of Bilateral Vocal Cord Paralysis
70° Rigid Hopkins Videolaryngoscopy
Awake Transnasal Fiberoptic Flexible Laryngoscopy
Examination under General Anesthesia
General Examination
Radiologic Evaluation
Pulmonary Function Tests
Laryngeal Electromyography
Neurological Tests
Laboratory Studies
TREATMENT
No Intervention with Regular Follow-up
Medical Treatment
Intubation
Surgery
Tracheotomy
Static Procedures that Enlarge the Laryngeal Airway
Technique
CONCLUSION
CHAPTER 34:
Principles of Management of Laryngotracheal Stenosis
INTRODUCTION
ASSESSMENT
Clinical Examination
Laryngeal Examination/Flexible Fiberoptic Laryngoscopy
Imaging
X-ray of the Neck
CT Scan of Neck and Virtual Bronchoscopy5
Rigid Endoscopy
MANAGEMENT OF LARYNGOTRACHEAL STENOSIS
HISTORICAL ASPECTS
TIMING OF SURGERY
SELECTION OF SURGICAL APPROACH
Endoscopic/External
Supraglottic Stenosis
Glottic Stenosis
Anterior Glottic Web
Posterior Glottic Stenosis and Webbing
Bilateral Vocal Fold Paralysis
Subglottic Stenosis
Isolated Subglottic Stenosis
Subglottic Stenosis with Glottis Involvement
Subglottic Stenosis with Tracheal Involvement
Involvement of Entire Subglottis and Upper Trachea
Tracheal Stenosis
Tracheal Resection and End-to-End Anastomosis (Figs. 3A to D)
CHAPTER 35:
Laryngeal Trauma
INTRODUCTION
CLASSIFICATION
ETIOPATHOGENESIS
INVESTIGATIONS
MANAGEMENT
BLUNT TRAUMA (Fig. 1)
PENETRATING TRAUMA
INTUBATION TRAUMA (Figs. 2 to 4)
INTERNAL TRAUMA DUE TO INGESTION OF CORROSIVES (Figs. 5A and B)
Surgical Principles
Outcome Assessment
CHAPTER 36:
Surgical Management of Dysphagia
INTRODUCTION
IMMEDIATE FEEDING OPTIONS
NUTRITIONAL CONSIDERATIONS
REHABILITATIVE SWALLOWING THERAPY
Oral Incompetence
Buccal Incompetence
Glossectomy and Tongue Muscle Dysfunction
Hyomandibular Complex Dysfunction
Velopharyngeal Incompetence
Laryngeal Incompetence
Inferior Constrictor Dysmotility
COMPENSATORY SWALLOWING THERAPY
Oral and Buccal Incompetence
Lingual Dysfunction
Velopharyngeal Incompetence
Absent or Reduced Laryngeal Elevation (Laryngopharyngeal Paralysis)
Laryngeal Incompetence
Inferior Constrictor Dysmotility
INTERVENTIONAL THERAPY IN SWALLOWING DISORDERS
Lip Incompetence
Glossectomy-induced Dysphagia
Velopharyngeal Incompetence and Nasal Regurgitation
Defective Hyolaryngeal Excursion (Laryngopharyngeal Paralysis)
Unilateral Laryngeal Incompetence
Bilateral Laryngeal Incompetence
Thyropharyngeal Dysfunction
Cricopharyngeal Dysfunction
Osteophytes
CONCLUSION
SECTION 6: RECENT ADVANCES
CHAPTER 37:
Laryngeal Transplantation
INTRODUCTION
QUALITY OF LIFE AFTER LARYNGECTOMY
Risk Acceptance of Laryngeal Transplantation
Scientific Background
First Transplant
Rat Model
Pig and Dog Models
Successful Laryngeal Transplants
Cleveland Clinic Patient
University of California Davis Patient
Colombian Patients
Polish Patient
Future Directions
CONCLUSION
CHAPTER 38:
Transoral Robotic Surgery in Larynx and Hypopharynx
INTRODUCTION
HISTORICAL ASPECTS
TRANSORAL ROBOTIC SURGERY—INSTRUMENTATION AND SPECIAL EQUIPMENT
Surgical Robot
Essential Instruments for Transoral Robotic Surgery
PERTINENT ANATOMY
TREATMENT GOALS
Benign Surgery
Cancer Surgery
TYPES OF PROCEDURES
Supraglottic Excision
Supraglottic Laryngectomy
PATIENT SELECTION
PREOPERATIVE PLANNING
Operation Room Settings
Operative Technique
Total Laryngectomy
Partial Pharyngectomy
BENEFITS OF TRANSORAL ROBOTIC SURGERY
Potential Patient Benefits
Potential Surgeon Advantages
Limitations
COMPLICATIONS AND MANAGEMENT
Bleeding
Airway Compromise and Swallowing Dysfunction
POSTOPERATIVE CARE
OUTCOMES
NEW HORIZONS
SUMMARY
CHAPTER 39:
Vocal Fold Regeneration
INTRODUCTION
VOCAL FOLD ANATOMY AND PHYSIOLOGY
DIFFERENT METHODS OF REGENERATIVE MEDICINE
Cell Therapy
Superficial Lamina Propria
Mesenchymal Stem Cells
Vocal Fold Mucosa
Laryngeal Muscles
Scaffolds
Biologically-derived Scaffolds
Synthetic Scaffolds
Biologic/Synthetic Hybrid Scaffolds
Growth Factors
Superficial Lamina Propria
Vocal Fold Mucosa
Recurrent Laryngeal Nerve
CONCLUSION
INDEX
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