Results 21 to 30 of about 11,564,274 (212)

Baseline spirometry parameters as predictors of airway hyperreactivity in adults with suspected asthma

BMC Pulmonary Medicine, 2021
Background Methacholine challenge tests (MCTs) are used to diagnose airway hyperresponsiveness (AHR) in patients with suspected asthma where previous diagnostic testing has been inconclusive.
Michael Peled, David Ovadya, Jennifer Cohn, Lior Seluk, Teet Pullerits, Michael J. Segel, Amir Onn   +6 more
doaj   +1 more source

Characterising the influence of pre-drive lung volume on force and power production during rowing [PDF]

, 2007
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Purpose: This study evaluated the effect of lung volume at the catch position to force and power outputs during single maximal effort strokes in rowing ...
Gibbs, Adam
core   +7 more sources

Ventilatory Limitation of Exercise in Pediatric Subjects Evaluated for Exertional Dyspnea

Frontiers in Physiology, 2019
Purpose: Attribution of ventilatory limitation to exercise when the ratio of ventilation (V˙E) at peak work to maximum voluntary ventilation (MVV) exceeds 0.80 is problematic in pediatrics. Instead, expiratory flow limitation (EFL) measured by tidal flow-
Paolo T. Pianosi, Joshua R. Smith
doaj   +1 more source

Excessive gas exchange impairment during exercise in a subject with a history of bronchopulmonary dysplasia and high altitude pulmonary edema [PDF]

, 2007
A 27-year-old male subject (V(O2 max)), 92% predicted) with a history of bronchopulmonary dysplasia (BPD) and a clinically documented case of high altitude pulmonary edema (HAPE) was examined at rest and during exercise.
Lovering, AT, Haverkamp, HC, Hokanson, JS, Eldridge, MW, Andrew T. Lovering, Lee M. Romer, John S. Hokanson, Romer, LM, Marlowe W. Eldridge, Hans C. Haverkamp   +9 more
core   +1 more source

Factors for the Variability of Three Acceptable Maximal Expiratory Flow–Volume Curves in Chronic Obstructive Pulmonary Disease

International Journal of COPD, 2021
Masafumi Yamamoto,1 Satoshi Konno,2 Hironi Makita,2,3 Katsuaki Nitta,4 Kaoruko Shimizu,2 Masaru Suzuki,2 Mutsumi Nishida,1 Junichi Sugita,1 Takanori Teshima,1 Masaharu Nishimura2,3 1Division of Laboratory and Transfusion Medicine, Hokkaido University ...
Yamamoto M, Konno S, Makita H, Nitta K, Shimizu K, Suzuki M, Nishida M, Sugita J, Teshima T, Nishimura M   +9 more
doaj  

Validation of new marker of fluid responsiveness based on Doppler assessment of blood flow velocity in superior vena cava in mechanically ventilated pigs

Intensive Care Medicine Experimental, 2018
Background We studied a novel approach for the evaluation and management of volemia: minimally invasive monitoring of respiratory blood flow variations in the superior vena cava (SVC). We performed an experiment with 10 crossbred (Landrace × large white)
Tomas Kovarnik, Miroslav Navratil, Jan Belohlavek, Mikulas Mlcek, Martin Chval, Zhi Chen, Stepan Jerabek, Otomar Kittnar, Ales Linhart   +8 more
doaj   +1 more source

Padrões ventilatórios na espirometria em pacientes adolescentes e adultos com fibrose cística Respiratory patterns in spirometric tests of adolescents and adults with cystic fibrosis

Jornal Brasileiro de Pneumologia, 2009
OBJETIVO: Avaliar os padrões dos distúrbios ventilatórios observados na espirometria em pacientes com fibrose cística (FC) e suas relações com a gravidade funcional e com o comportamento dos fluxos máximos expiratórios a baixos volumes.
Bruna Ziegler, Paula Maria Eidt Rovedder, Paulo de Tarso Roth Dalcin, Sérgio Saldanha Menna-Barreto   +3 more
doaj   +1 more source

Gas exchange during exercise in habitually active asthmatic subjects [PDF]

, 2005
We determined the relations among gas exchange, breathing mechanics, and airway inflammation during moderate- to maximum-intensity exercise in asthmatic subjects.
Haverkamp, HC, Eldridge, MW, Rodman, JR, Pegelow, DF, Miller, JD, Romer, LM, Dempsey, JA   +6 more
core   +1 more source

Efeito do broncodilatador no tempo de apneia voluntária máxima em pacientes com distúrbios ventilatórios obstrutivos Bronchodilator effect on maximal breath-hold time in patients with obstructive lung disease

Jornal Brasileiro de Pneumologia, 2011
OBJETIVO: Identificar o papel do broncodilatador no tempo de apneia voluntária máxima em pacientes com distúrbios ventilatórios obstrutivos (DVOs). MÉTODOS: Estudo caso-controle incluindo pacientes com DVOs e grupo controle.
Raqueli Biscayno Viecili, Paulo Roberto Stefani Sanches, Denise Rossato Silva, Danton Pereira da Silva, André Frota Muller, Sergio Saldanha Menna Barreto   +5 more
doaj   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

Advanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez, Ruth Tarpey, Benjamin Brennan, Bryan D. Boyle, Amir M. Alsharabasy, Abhik Mallick, Gabriella Bellavia, Abhay Pandit, Garry P. Duffy, Ruth E. Levey   +9 more
wiley   +1 more source