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Prevalence of inducible laryngeal obstruction among patients diagnosed as bronchial asthma.
Adv Respir Med. 2020; 88(2):129-133.AR

Abstract

INTRODUCTION

Inducible laryngeal obstruction (ILO) is an important cause of a variety of respiratory symptoms and can mimic bronchial asthma (BA). This study was planned to measure the prevalence of ILO among patients diagnosed with BA and to detect its effect on BA control and severity.

MATERIAL AND METHODS

Patients aged 18 years or older who were previously diagnosed with BA were enrolled. Laryngeal obstruction was induced using the patient's specific trigger (e.g. exercise). Visualization of vocal folds was accomplished using a 70-degree rigid laryngoscope (Karl Storz). A visual grade score was utilized to determine the severity of laryngeal obstruction.

RESULTS

Results showed that 38.3% (n = 46) of the patients had ILO with the majority being classified as grade 2 (80.4%) (n = 37). The most common subtype was glottic ILO (63%). Bronchial asthma duration, level of control, and severity were not associated with ILO (P values: 0.2, 0.3 and 0.8 respectively).

CONCLUSION

Asthma and ILO commonly co-exist. An accurate classification of patients is very important and must be considered in order to determine whether the symptoms are directly related to ILO or whether they are caused by BA. Ceasing inappropriate treatment may be necessary. Objective diagnostic modalities of ILO are essential.

Authors+Show Affiliations

Mansoura University Egypt, Mansoura, Egypt. wagihheba84@gmail.com.Mansoura University Egypt, Mansoura, Egypt.Mansoura University Egypt, Mansoura, Egypt.Mansoura University Egypt, Mansoura, Egypt.Mansoura University Egypt, Mansoura, Egypt.Mansoura University Egypt, Mansoura, Egypt.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32383464

Citation

Abdelwahab, Heba Wagih, et al. "Prevalence of Inducible Laryngeal Obstruction Among Patients Diagnosed as Bronchial Asthma." Advances in Respiratory Medicine, vol. 88, no. 2, 2020, pp. 129-133.
Abdelwahab HW, Aboelnass A, Ayman A, et al. Prevalence of inducible laryngeal obstruction among patients diagnosed as bronchial asthma. Adv Respir Med. 2020;88(2):129-133.
Abdelwahab, H. W., Aboelnass, A., Ayman, A., Elsaid, A. R., Farrag, N. S., & Hamad, A. M. (2020). Prevalence of inducible laryngeal obstruction among patients diagnosed as bronchial asthma. Advances in Respiratory Medicine, 88(2), 129-133. https://doi.org/10.5603/ARM.2020.0087
Abdelwahab HW, et al. Prevalence of Inducible Laryngeal Obstruction Among Patients Diagnosed as Bronchial Asthma. Adv Respir Med. 2020;88(2):129-133. PubMed PMID: 32383464.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of inducible laryngeal obstruction among patients diagnosed as bronchial asthma. AU - Abdelwahab,Heba Wagih, AU - Aboelnass,Amal, AU - Ayman,Amer, AU - Elsaid,Amany Ragab, AU - Farrag,Nesrine Saad, AU - Hamad,Ahmed M, PY - 2019/12/23/received PY - 2020/02/13/accepted PY - 2020/02/06/revised PY - 2020/5/9/entrez KW - bronchial asthma KW - bronchial asthma control and severity KW - inducible laryngeal obstruction SP - 129 EP - 133 JF - Advances in respiratory medicine JO - Adv Respir Med VL - 88 IS - 2 N2 - INTRODUCTION: Inducible laryngeal obstruction (ILO) is an important cause of a variety of respiratory symptoms and can mimic bronchial asthma (BA). This study was planned to measure the prevalence of ILO among patients diagnosed with BA and to detect its effect on BA control and severity. MATERIAL AND METHODS: Patients aged 18 years or older who were previously diagnosed with BA were enrolled. Laryngeal obstruction was induced using the patient's specific trigger (e.g. exercise). Visualization of vocal folds was accomplished using a 70-degree rigid laryngoscope (Karl Storz). A visual grade score was utilized to determine the severity of laryngeal obstruction. RESULTS: Results showed that 38.3% (n = 46) of the patients had ILO with the majority being classified as grade 2 (80.4%) (n = 37). The most common subtype was glottic ILO (63%). Bronchial asthma duration, level of control, and severity were not associated with ILO (P values: 0.2, 0.3 and 0.8 respectively). CONCLUSION: Asthma and ILO commonly co-exist. An accurate classification of patients is very important and must be considered in order to determine whether the symptoms are directly related to ILO or whether they are caused by BA. Ceasing inappropriate treatment may be necessary. Objective diagnostic modalities of ILO are essential. SN - 2543-6031 UR - https://www.unboundmedicine.com/medline/citation/32383464/Prevalence_of_inducible_laryngeal_obstruction_among_patients_diagnosed_as_bronchial_asthma_ L2 - https://journals.viamedica.pl/advances_in_respiratory_medicine/article/view/66943 DB - PRIME DP - Unbound Medicine ER -
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