Anaesthesia-related morbidity associated with recumbent, low-field magnetic resonance imaging of horses.
In: New Zealand Veterinary Journal, Jg. 72 (2024-05-01), Heft 3, S. 141-147
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Zugriff:
Medical records from 2009 to 2021 from a private equine referral hospital in Rochester, NH, USA were analysed for cases that underwent general anaesthesia for low-field MRI of the distal limb. These were used to determine peri-anaesthetic morbidity and mortality. Two hundred and forty-three anaesthetic episodes were recorded in horses undergoing low-field MRI. The peri-anaesthetic complication rate prior to discharge was 6.2% (15/243). No patients experienced a fatal complication. Ninety two of the 243 patients had multiple sites imaged, 90/243 received pre-anaesthetic dantrolene, 134/243 received intra-anaesthetic dobutamine, and 15/243 were positioned in dorsal recumbency. Complications included: abdominal discomfort ("colic"; 9/243), myopathy (4/243), hyphaema (1/243) and carpal fracture (1/243). At the time of discharge, 14/15 complications had resolved. Of 135 horses for which data were available 55 became hypotensive during the procedure (lowest mean arterial pressure < 65 mmHg). Median body weight was 553 (min 363, max 771) kg. Horses were anaesthetised for a median of 150 (min 45, max 210) minutes. There was no evidence of an association between higher body weight (p = 0.051) or longer duration of anaesthesia (p = 0.421) and development of an anaesthetic complication. For categorical variables (dantrolene administration pre-anaesthesia, dobutamine administration during anaesthesia, hypotension (mean < 65 mmHg) during anaesthesia, dorsal vs. lateral recumbency, and imaging of single vs. multiple sites), the 95% CI for the OR included 1, indicating a lack of effect of the variable on the odds of complication. The cases included in this series suggest that low-field MRI under general anaesthesia is a viable option for diagnostic imaging in otherwise healthy horses. Complications occur, but most resolve before discharge. [ABSTRACT FROM AUTHOR]
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Titel: |
Anaesthesia-related morbidity associated with recumbent, low-field magnetic resonance imaging of horses.
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Autor/in / Beteiligte Person: | Myhre, MG ; Azeem, A ; Barrett, M |
Zeitschrift: | New Zealand Veterinary Journal, Jg. 72 (2024-05-01), Heft 3, S. 141-147 |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 0048-0169 (print) |
DOI: | 10.1080/00480169.2024.2321176 |
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