Related Experiment Video
Updated: Jul 16, 2026

09:58
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
Published on: February 3, 2014
Paradoxical vocal cord motion disorder: past, present and future
Wanis H Ibrahim1, Heitham A Gheriani, Ahmed A Almohamed
1Pulmonary Section, Department of Medicine, Hamad General Hospital, PO Box 3050, Doha, Qatar. wanisian@yahoo.com
Postgraduate Medical Journal
|March 9, 2007
Summary
Paradoxical vocal cord motion disorder (PVCM) is often misdiagnosed as asthma. Early diagnosis via laryngoscopy and management with speech therapy can prevent unnecessary treatments and medical interventions.
Area of Science:
- Medical diagnosis
- Respiratory medicine
- Otolaryngology
Background:
- Paradoxical vocal cord motion disorder (PVCM), or vocal cord dysfunction, is a critical differential diagnosis for asthma.
- Misdiagnosis of PVCM as asthma can lead to inappropriate treatments, increased healthcare utilization, and invasive procedures like intubation.
Purpose of the Study:
- To enhance physician awareness of PVCM.
- To differentiate PVCM from asthma based on key characteristics.
- To review current management strategies and future directions for PVCM.
Main Methods:
- Review of diagnostic criteria for PVCM.
- Comparison of clinical presentations of PVCM and asthma.
- Discussion of established and emerging treatment modalities for PVCM.
Main Results:
- Laryngoscopy is the definitive diagnostic tool for PVCM.
- Speech therapy and psychotherapy are primary management strategies.
- Accurate diagnosis avoids unnecessary asthma medications and interventions.
Conclusions:
- Increased awareness and accurate diagnosis of PVCM are crucial.
- Effective management involves specialized therapies, not asthma medications.
- Further research can refine diagnostic and therapeutic approaches for PVCM.
Related Concept Videos
Larynx
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, corniculates, and...
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, corniculates, and...
Pharynx
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
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Upward Impending Motion
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. Its operation is based on converting the force applied at its handle into a torsional moment, causing the upward impending motion of the screw. This movement is accomplished by overcoming the static friction between the threads of the screw and the jack.
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
Respiratory System Abnormal Finding II: Palpation and Auscultation
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:
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Deglutition
Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...
Ventilatory Modes
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
