TANAFFOS (Respiration)

TANAFFOS (Respiration)

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

Authors
Hanieh Raji 1
Maryam Haddadzadeh Shoushtari 1
Esmaeil Idani 1
Heshmatollah Tavakol 1
Sakineh Afrakhteh 2
Maryam Dastoorpoor 2, 3
Seyed Hamid Borsi 1
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 Department of Epidemiology and Biostatistics, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Abstract
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
Keywords
Airway Hyper-Responsiveness
Methacholine Challenge Test
Asthma
FEF25-75