Forced Expiratory Flow at 25–75% as a Marker for Airway Hyper Responsiveness in Adult Patients with Asthma-like Symptoms

نویسندگان
Idani, Esmaeil ID 1
Tavakol, Heshmatollah ID 2
Afrakhteh, Sakineh ID 3
Raji, Hanieh ID 4
Haddadzadeh Shoushtari, Maryam ID 5
Dastoorpoor, Maryam ID 6
Borsi, Seyed Hamid ID 7

1 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

2 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

3 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran,

4 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

5 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

6 Air pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran,

7 Department of Epidemiology and Biostatistics, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

doi
چکیده

Background: The aim of the present study was threefold: to assess the association between baseline FEF25-75 and Airway Hyper-responsiveness (AHR), to specify whether a decrease in FEF25-75 may reflect severe hyperresponsiveness, and finally to confirm a FEF 25-75 cut-off value. Materials and Methods: In a cross sectional study in Imam Khomeini Hospital, Ahvaz, patients suffering from respiratory symptoms due the 2013 autumn rainfall with normal FEV1 and FEV1/FVC were evaluated by methacholine challenge test. Those with PD20

کلیدواژه‌ها
Airway Hyper-Responsiveness, Methacholine Challenge Test, Asthma, FEF25-75