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At least 289 records · Page 16Linked to original sources
PubMed2003

Fluid therapy in horses with gastrointestinal disease.

Fluid therapy is essential to the successful management of horses with gastrointestinal disease. Affected horses can present in a wide spectrum of metabolic derangement depending on the extent and severity of the underlying disease process. Precise quantitation of fluid deficits and losses is usually not possible; thus, formulating a rational plan, applying diligent and ongoing monitoring, and making adjustments to meet individual demands provide the best approach to fluid therapy in these horses. Although restoration of fluid and electrolyte homeostasis can be complicated, it is probably best in most cases to keep the approach as simple as possible and resist the urge to "over" manage.

Acid-Base Equilibrium↗
PubMed1981

Studies on the physiopathology of chronic obstructive pulmonary disease in the horse. IV. Blood gas and acid-base values at rest.

Radiometer Blood Micro-system 2 was used in studies designed to, (a) compare the mean blood gas and acid-base values of 38 normal horses and 20 horses with chronic obstructive pulmonary disease (COPD), (b) determine the means and standard deviations of blood gas and acid-base values of Thoroughbred horses in training, and (c) investigate the relationships between clinical data, blood gas values, intracardiac and pulmonary arterial pressures in subjects with COPD. There were significant differences between the mean values for partial pressure of arterial oxygen (PaO2), arterial carbon dioxide (PaCO2) and mixed venous carbon dioxide (PvCO2) in normal and COPD subjects. The mean values and standard deviations for determinations of blood gases and acid-base status in Thoroughbred horses in training were as follows: PaO2 = 77,4 +/- 4,3 mm Hg; PvO2 (mixed venous oxygen partial pressure) = 36,2 +/- 4,1 mm Hg; PaCO2 = 40,9 +/- 5,8 mm Hg; PvCO2 = 49,4 +/- 5,0 mm Hg; pHa (arterial) = 7,358 +/- 0,051; pHv (venous) = 7,343 +/- 0,027; standard bicarbonate = 22,7 mM/l. The PaO2, the PaCO2 and the arterial pH were significantly correlated to the respiratory frequency in COPD subjects. The correlations of pulmonary diastolic pressure to both PaO2 and pHa were of probable significance (P less than 0,05) in COPD subjects. PaCO2 was highly significantly correlated to PaO2 and pHa in COPD subjects.

Acid-Base Equilibrium↗
PubMed2002

Effects of inhaled ipratropium bromide on breathing mechanics and gas exchange in exercising horses with chronic obstructive pulmonary disease.

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.

Administration, Inhalation↗
PubMed1981

Prophylactic effects of sodium cromoglycate on chronic obstructive pulmonary disease in the horse.

When stabled in a controlled environment, horses effected with chronic obstructive pulmonary disease (COPD) became clinically asymptomatic in 4 to 32 days (mean [+/-sd] 9.1 +/- 4.9 days), the time being influenced most by the severity of the disease judged on maximum intrathoracic pressure change (Max delta Ppl) and the age of the animal. Sodium cromoglycate, a drug widely used for prophylaxis of allergic respiratory disease in man, was administered by inhalation to 56 COPD-affected horses. The results showed that a linear response existed between the number of successive days treatment with this drug and the duration of remission of clinical signs of COPD while horses were exposed to natural antigen (poor quality straw bedding). Sodium cromoglycate given as a single daily dose (80 mg) on one day and on 4 successive days prevented clinical signs for mean 3.6 days and mean 24.3 days, respectively. These results indicate that prophylactic treatment with inhaled sodium cromoglycate is an effective method of controlling the clinical signs of COPD.

Animals↗