2004年3月1日 · If VCD is considered during PFT, direct laryngoscopy should be available to visually confirm the paradoxic vocal cord motion if induced. The real role of PFT is determining if there is a ...

Vocal cord dysfunction (i.e., vocal cords closing when they should be opening, particularly during inspiration) should be suspected in patients presenting with inspiratory...

Vocal cord dysfunction (VCD) is a term that refers to inappropriate adduction of the vocal cords during inhalation and sometimes exhalation. It is a functional disorder that serves as an important mimicker of asthma. Vocal cord dysfunction can be difficult to treat as the condition is often underappreciated and misdiagnosed in clinical practice.

2010年11月1日 · Terminology describing these disorders can be confusing. POLO best describes VCD (alternatively termed PVFM) and laryngomalacia, with each characterized by episodes of dyspnea and noisy breathing. VCD should be limited to vocal cord adduction primarily associated with inspiration but may be noted during expiration.

Vocal cord dysfunction (VCD) is defined as inappropriate movement of the vocal cords resulting in functional airway obstruction and symptoms including cough, wheezing, and dyspnea. VCD is often misdiagnosed with asthma but can also co-exist with ...

2013年2月5日 · Diagnosis of VCD involves three main criteria: clinical symptoms, laryngoscopy, and PFT. 6 Clinical symptoms occur intermittently and most commonly include dyspnea, stridor, and wheezing. It is important to distinguish wheezing in the neck and upper airways as opposed to wheezes in the lower airways.

2020年6月22日 · VCD is a disorder marked by intermittent episodes of vocal cord contraction, particularly during inspiration. This causes episodic dyspnea with stridor, which is classically confused with asthma. This is a functional disorder that is often associated with psychiatric comorbidities. Patients are not malingering (not doing this intentionally).

Why do people get VCD? VCD vs Exercise Induced Asthma. Throat tightness and dysphonia, the absence of wheezing, and the presence of odors as a symptom trigger as key features of VCD that distinguish it from asthma.

Athletes suspected of having VCD should be evaluated with pulmonary function testing (PFT) to refute or confirm the presence of EIB or asthma. Spirometry measurements obtained before and after a bronchial provocation challenge with either histamine or methacholine may be helpful.

Intermittent paradoxical closure of the vocal cords can induce major attacks of dyspnea. Such attacks, called "vocal cord dysfunction" (VCD), are an important element in the differential diagnosis of intractable bronchial asthma. Selective review of ...