Results 1 to 10 of about 6,159 (213)

Diurnal Variation in Peak Expiratory Flow and Forced Expiratory Volume [PDF]

Journal of Clinical and Diagnostic Research, 2015
Introduction: Diurnal variability in airways has most commonly been reported using peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1). Characteristics of variability in small, mid and large airways caliber are expected to be
Arun Goel, Manish Goyal, Ruchi Singh, Narsingh Verma, Sunita Tiwari   +4 more
doaj   +3 more sources

Proteomic associations with forced expiratory volume: a Mendelian randomisation study

Respiratory Research, 2023
Background A decline in forced expiratory volume (FEV1) is a hallmark of respiratory diseases that are an important cause of morbidity among the elderly.
Gisli Thor Axelsson, Thorarinn Jonmundsson, Youngjae Woo, Elisabet Alexandra Frick, Thor Aspelund, Joseph J. Loureiro, Anthony P. Orth, Lori L. Jennings, Gunnar Gudmundsson, Valur Emilsson, Valborg Gudmundsdottir, Vilmundur Gudnason   +11 more
doaj   +4 more sources

A study to assess the utility of forced expiratory volume in 1 second/forced expiratory volume in 6 seconds in diagnosing obstructive airway disease

Monaldi Archives for Chest Disease
According to the Global Initiative for Chronic Obstructive Lung Disease criteria, the ratio of forced expiratory volume in the 1st second (FEV1) and forced vital capacity (FVC) is required to diagnose chronic obstructive pulmonary disease.
Vardhan Garg, Manoj Kumar, Rakhee Khanduri, Varuna Jethani, Sushant Khanduri, Rahul Kumar Gupta   +5 more
doaj   +3 more sources

Prediction equations for spirometry in four‐ to six‐year‐old children

Jornal de Pediatria (Versão em Português), 2016
Objective: To generate prediction equations for spirometry in 4‐ to 6‐year‐old children. Methods: Forced vital capacity, forced expiratory volume in 0.5 s, forced expiratory volume in one second, peak expiratory flow, and forced expiratory flow at 25–75%
Danielle Corrêa França, Paulo Augusto Moreira Camargos, Marcus Herbert Jones, Jocimar Avelar Martins, Bruna da Silva Pinto Pinheiro Vieira, Enrico Antônio Colosimo, Karla Morganna Pereira Pinto de Mendonça, Raíssa de Oliveira Borja, Raquel Rodrigues Britto, Verônica Franco Parreira   +9 more
doaj   +5 more sources

Precipitous fall of the forced expiratory volume [PDF]

Thorax, 1969
Two patients are described who showed a precipitous loss of forced expiratory volume from normal to low levels within a few years. They did not have bronchial asthma and we suggest that this pattern of deterioration may occur occasionally in patients before they attend hospital with the symptoms of chronic bronchitis.
P, Howard, T W, Astin
openaire   +2 more sources

Variability of relaxed expiratory volume and forced inspiratory volume [PDF]

Thorax, 1970
Measurements of relaxed expiratory volume in one second (REV1·0) and forced inspiratory volume in one second (FIV1·0) were made on 50 subjects on two occasions to know the variability of these procedures in the individual subject. The mean coefficients of variation for REV1·0 and FIV1·0 were 6·74% and 8·92%, respectively.
M K, Tandon, A H, Campbell
openaire   +2 more sources

Impact of climate variability on exercise-induced bronchospasm in adolescents living in a semi-arid region

Einstein (São Paulo), 2021
Objective: To examine the impact of climate variability on the occurrence of exercise-induced bronchospasm in the rainy and dry seasons of a Brazilian semi-arid region.
Edinely Michely de Alencar Nelo, Jânio Luiz Correia Júnior, Hamilton Felipe Andrade Santos, José Pereira de Lima Júnior, Jéssica Thayani Santos Brandão, José Fernando Vila Nova de Moraes, Marco Aurélio de Valois Correia Júnior, Ricardo de Freitas-Dias   +7 more
doaj   +2 more sources

Effect of acute respiratory infections in infancy on pulmonary function test at 3 years of age: a prospective birth cohort study

BMJ Open Respiratory Research, 2020
Introduction Acute respiratory infections (ARIs) in infancy may have a long-term impact on the developing respiratory system. We planned a prospective cohort study to determine the impact of ARI during infancy on the pulmonary function test indices at 3 ...
Kana Ram Jat, Sushil Kumar Kabra, Prawin Kumar, Aparna Mukherjee, Shivani Randev, Guruprasad R Medigeshi, Arti Kapil, Rakesh Lodha   +7 more
doaj   +1 more source

UTILITY OF SPIROMETRY IN ASSESSMENT OF UPPER AIRWAY OBSTRUCTIONS: THE NEGLECTED PARAMETERS

Khyber Medical University Journal, 2023
Upper airway obstructions represent a huge burden to the health care system due to its high morbidity and cost to the economic systems. Therefore, it is important to understand the physiological parameters used in diagnosis and prognosis of these ...
Thamir Al-khlaiwi, Syed Shahid Habib
doaj   +1 more source

Effect of a Single Simulated 500 m Saturation Dive on Lung Function

Frontiers in Physiology, 2022
Background: Whether deep saturation diving causes injury to lung function remains controversial and the mechanism is unclear. The present study aimed to evaluate the effects of a 500 m simulated single saturation dive on lung function.Methods: A ...
Ningfang Lian, Sijiao Wang, Lijuan Hu, Liping Xue, Ying Gong, Li Li, Yanjie Yang, Lei Zhu, Lei Zhu   +8 more
doaj   +1 more source