Reference : Effects of inhaled ipratropium bromide on breathing mechanics and gas exchange in exe...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/6686
Effects of inhaled ipratropium bromide on breathing mechanics and gas exchange in exercising horses with chronic obstructive pulmonary disease
English
Bayly, W. M. [Washington State University Pullman, USA > Department of Veterinary Clinical Sciences > > >]
Duvivier, D. H. [Université de Liège - ULG > Faculté de Médecine Vétérinaire > Physiologie > >]
Votion, D. [Université de Liège - ULG > Faculté de Médecine Vétérinaire > Physiologie > >]
Vandenput, Sandrina mailto [Université de Liège - ULg > Faculté de Médecine Vétérinaire > Physiologie > >]
Art, Tatiana mailto [Université de Liège - ULg > Faculté de Médecine Vétérinaire > Physiologie > >]
Lekeux, Pierre mailto [Université de Liège - ULg > Faculté de Médecine Vétérinaire > Physiologie > >]
2002
Equine Veterinary Journal
Equine Veterinary Journal Ltd
34
1
36-43
Yes (verified by ORBi)
International
0425-1644
Newmarket Suffolk
United Kingdom
[en] Horse ; exercise ; COPD ; inhalation ; therapy ; bronchodilators ; breathing mechanics
[en] Six Warmblood horses suffering an acute exacerbation of COPD were tested to investigate whether inhalation of ipratropium bromide (IB) dry powder (2,400 microg) 30 min preexercise would improve their exercise capacity. A cross-over protocol with an inert powder placebo (P) was used. Mechanics of breathing and arterial blood gases were determined before treatment, after treatment but pre-exercise, and during an incremental exercise test. Oxygen consumption (VO2) was also measured before and during exercise, and the time to fatigue recorded. Inhalation of IB reduced total pulmonary resistance (RL) and maximum intrapleural pressure changes (deltaPpl(max)) and increased dynamic compliance before exercise. The onset of exercise was associated with a marked decrease in RL in P-treated horses but not those receiving IB, so that RL during exercise was not affected by treatment. Although deltaPpl(max) was lower at 8,9 and 10 m/s with IB, there were no treatment-related changes in VO2, blood gases, time to fatigue or any other measurement of breathing mechanics. Therefore, although inhalation of IB prior to exercise may have improved deltaPpl(max), it had no apparent impact on the horses' capacity for exercise.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/6686

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