BACKGROUND AND OBJECTIVE: Paradoxical vocal fold motion dysfunction (PVFMD) is a disorder of the larynx characterized by adduction of the vocal cords during the respiratory cycle leading to symptoms of extrathoracic airway obstruction. PVFMD mimics asthma and patients with PVFMD (PVFMD+) are often diagnosed incorrectly as refractory asthma and receive unnecessary treatment. This study determined the prevalence of PVFMD in asthma patients and described the relationship between asthma and PVFMD. METHODS: A descriptive study of 94 asthmatic patients and 40 control subjects, all of whom were examined via laryngoscopy and had pulmonary function tests were performed. RESULTS: The prevalence of PVFMD was 19% (n = 18) in the asthmatic group and 5% (n = 2) in the control group (P < 0.001). No relationship was found between presence of PVFMD, asthma attacks and asthma severity (P > 0.05). Laryngopharyngeal reflux and allergy were significantly more prevalent in the PVFMD+ group than in the group without PVFMD (PVFMD-) (P < 0.05). The most common symptoms in the PVFMD+ patients were difficulty in breathing (88%), inspiratory stridor (66%) and a choking sensation (50%) and the most common symptoms in PVFMD- asthmatic patients were cough (63%), dyspnoea (55%) and wheezing (51%). CONCLUSIONS: Asthma seems to facilitate the formation of the paradoxical dysfunction in the larynx as the prevalence of PVFMD in asthma patients is significantly higher than in patients with out asthma.
BACKGROUND AND OBJECTIVE: Paradoxical vocal fold motion dysfunction (PVFMD) is a disorder of the larynx characterized by adduction of the vocal cords during the respiratory cycle leading to symptoms of extrathoracic airway obstruction. PVFMD mimics asthma and patients with PVFMD (PVFMD+) are often diagnosed incorrectly as refractory asthma and receive unnecessary treatment. This study determined the prevalence of PVFMD in asthmapatients and described the relationship between asthma and PVFMD. METHODS: A descriptive study of 94 asthmatic patients and 40 control subjects, all of whom were examined via laryngoscopy and had pulmonary function tests were performed. RESULTS: The prevalence of PVFMD was 19% (n = 18) in the asthmatic group and 5% (n = 2) in the control group (P < 0.001). No relationship was found between presence of PVFMD, asthma attacks and asthma severity (P > 0.05). Laryngopharyngeal reflux and allergy were significantly more prevalent in the PVFMD+ group than in the group without PVFMD (PVFMD-) (P < 0.05). The most common symptoms in the PVFMD+ patients were difficulty in breathing (88%), inspiratory stridor (66%) and a choking sensation (50%) and the most common symptoms in PVFMD- asthmatic patients were cough (63%), dyspnoea (55%) and wheezing (51%). CONCLUSIONS:Asthma seems to facilitate the formation of the paradoxical dysfunction in the larynx as the prevalence of PVFMD in asthmapatients is significantly higher than in patients with out asthma.
Authors: Regina Maria de Carvalho-Pinto; José Eduardo Delfini Cançado; Marcia Margaret Menezes Pizzichini; Jussara Fiterman; Adalberto Sperb Rubin; Alcindo Cerci Neto; Álvaro Augusto Cruz; Ana Luisa Godoy Fernandes; Ana Maria Silva Araujo; Daniela Cavalet Blanco; Gediel Cordeiro Junior; Lilian Serrasqueiro Ballini Caetano; Marcelo Fouad Rabahi; Marcelo Bezerra de Menezes; Maria Alenita de Oliveira; Marina Andrade Lima; Paulo Márcio Pitrez Journal: J Bras Pneumol Date: 2021-12-15 Impact factor: 2.624
Authors: Jorge Maspero; Yochai Adir; Mona Al-Ahmad; Carlos A Celis-Preciado; Federico D Colodenco; Pedro Giavina-Bianchi; Hani Lababidi; Olivier Ledanois; Bassam Mahoub; Diahn-Warng Perng; Juan C Vazquez; Arzu Yorgancioglu Journal: ERJ Open Res Date: 2022-08-01