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Related Concept Videos

Larynx01:21

Larynx

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The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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Respiratory System Abnormal Finding II: Palpation and Auscultation01:31

Respiratory System Abnormal Finding II: Palpation and Auscultation

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In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
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Physical Assessment of the Respiratory Tract IV: Auscultation01:28

Physical Assessment of the Respiratory Tract IV: Auscultation

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Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
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Chronic Pharyngitis01:23

Chronic Pharyngitis

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Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
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Alterations in Respiration II01:30

Alterations in Respiration II

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There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
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Pharynx01:20

Pharynx

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The pharynx, a tubular structure framed by skeletal muscle and lined with mucous membrane, extends continuously from the nasal cavities. It is segmented into three major areas: the nasopharynx, oropharynx, and laryngopharynx.
Nasopharynx
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A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS
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Spasmodic Dysphonia.

Aaron J Jaworek1, Robert T Sataloff2

  • 1Otolaryngology Residency, St. Luke's University Health Network, Otolaryngology - Head and Neck Surgery Laryngology and Care of the Professional Voice Bethlehem Pennsylvania USA.

World Journal of Otorhinolaryngology - Head and Neck Surgery
|January 1, 2026
PubMed
Summary
This summary is machine-generated.

Spasmodic dysphonia, a voice disorder, involves involuntary muscle spasms affecting the larynx. While its cause is unclear, various treatments can help improve vocal fluency for most individuals.

Keywords:
botulinum toxindeep brain stimulationlaryngeal dystoniamyectomyneurectomyspasmodic dysphonia

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Area of Science:

  • Neurology
  • Otolaryngology
  • Speech-Language Pathology

Background:

  • Spasmodic dysphonia is a focal dystonia impacting the laryngeal muscles.
  • It manifests in adductor, abductor, or mixed subtypes, potentially with tremor.
  • The precise etiology remains incompletely understood.

Purpose of the Study:

  • To summarize the diagnostic and therapeutic landscape of spasmodic dysphonia.
  • To highlight the importance of comprehensive evaluation for accurate diagnosis.

Main Methods:

  • Review of current literature on spasmodic dysphonia.
  • Analysis of diagnostic criteria and evaluation protocols.
  • Compilation of established and emerging treatment modalities.

Main Results:

  • Spasmodic dysphonia diagnosis requires thorough assessment.
  • A range of treatments exist, including voice therapy, medications, botulinum toxin injections, surgery, and deep brain stimulation.
  • Significant improvement in vocal fluency is achievable for the majority of patients.

Conclusions:

  • Spasmodic dysphonia is a complex condition requiring specialized care.
  • Multidisciplinary approaches offer the best outcomes.
  • Effective management strategies can substantially enhance quality of life.