Radiographic evidence of impaired pulmonary function in laterally recumbent anaesthetised horses.
Abstract: Studies in conscious and anaesthetised ponies demonstrated that starvation, anaesthesia and changes in body position influence the radiographic appearance of the lungs in the lateral and dorsoventral views. Radiographic appearances could not be closely correlated with blood gas values, but they suggested that the volume of the lowermost lung of the laterally recumbent animal is greatly reduced.
Publication Date: 1979-01-01 PubMed ID: 428360DOI: 10.1111/j.2042-3306.1979.tb01290.xGoogle Scholar: Lookup
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- Comparative Study
- Journal Article
Summary
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The research article investigates the impact of factors such as starvation, anesthesia, and body position change on the lung’s radiographic appearance in horses. It suggests that the undermost lung’s volume is greatly reduced in the laterally recumbent position, with limited correlation to blood gas values.
Research Objectives and Methods
- The study’s primary goal was to explore the influence of various factors, like fasting, anesthesia, and alterations in the horse’s body position on the radiographic presentation of their lungs.
- The study was conducted using both conscious and anaesthetised ponies to get a clear understanding of both states’ differencing impacts.
- Researchers utilized lateral and dorsoventral view radiographs to assess the lungs’ state in different body positions.
Research Findings
- The investigation discovered a significant decrease in the undermost lung’s volume when the horse was in a laterally recumbent or lying on its side position.
- No tight correlation was observed between the radiographic appearances and blood gas values, which measure the gases dissolved in the blood.
- It implies that even if the blood gas values indicate normalcy, the lung volume might still be compromised due to the horse’s body position.
Significance of the Research
- This research highlights the importance of considering the horse’s body position when diagnosing or treating lung-related disorders.
- The findings can help veterinarians enhance their patient care, particularly for horses that are under anesthesia or are incapable of maintaining an upright position.
- The conclusion that the lung’s radiographic appearance is not strongly linked to blood gas values suggests that relying solely on blood gas values could lead to a misdiagnosis.
Cite This Article
APA
McDonell WN, Hall LW, Jeffcott LB.
(1979).
Radiographic evidence of impaired pulmonary function in laterally recumbent anaesthetised horses.
Equine Vet J, 11(1), 24-32.
https://doi.org/10.1111/j.2042-3306.1979.tb01290.x Publication
Researcher Affiliations
MeSH Terms
- Anesthesia / veterinary
- Anesthesia, Inhalation / veterinary
- Animals
- Carbon Dioxide / blood
- Chloral Hydrate
- Halothane
- Horses / physiology
- Lung / diagnostic imaging
- Lung / physiology
- Oxygen / blood
- Posture
- Radiography
- Respiration
- Starvation / veterinary
Citations
This article has been cited 7 times.- Tucker L, Almeida D, Wendt-Hornickle E, Baldo CF, Allweiler S, Guedes AGP. Effect of 15° Reverse Trendelenburg Position on Arterial Oxygen Tension during Isoflurane Anesthesia in Horses.. Animals (Basel) 2022 Feb 1;12(3).
- Youngblood CD, Hodgson DS, Beard WL, Song Y, Prakash P, Heflin LV. Effect of position on transdiaphragmatic pressure and hemodynamic variables in anesthetized horses.. Can J Vet Res 2020 Jul;84(3):205-211.
- Dupont J, Serteyn D, Sandersen C. Prolonged Recovery From General Anesthesia Possibly Related to Persistent Hypoxemia in a Draft Horse.. Front Vet Sci 2018;5:235.
- Niyom S, Mama KR, King M, Contino E, Ferris D, Valdes-Martinez A, Frisbie DD, McIlwraith W, Zumbrunnen J. Influence of changing lateral recumbency and mode of ventilation on the alveolar-arterial oxygen tension gradient and selected laboratory analytes in adult isoflurane anesthetized horses.. J Vet Med Sci 2018 Nov 1;80(10):1584-1589.
- Santangelo B, Robin A, Simpson K, Potier J, Guichardant M, Portier K. The Modification and Performance of a Large Animal Anesthesia Machine (Tafonius(®)) in Order to Deliver Xenon to a Horse.. Front Vet Sci 2017;4:162.
- McMurphy RM, Cribb PH. Alleviation of postanesthetic hypoxemia in the horse.. Can Vet J 1989 Jan;30(1):37-41.
- Gallivan GJ, Viel L, McDonell WN. An evaluation of the multiple-breath nitrogen washout as a pulmonary function test in horses.. Can J Vet Res 1990 Jan;54(1):99-105.
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