Acute noncardiogenic pulmonary edema in an anesthetized Nubian goat kid |
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| Authors: | Jordyn M Boesch DVM Robin D Gleed BVSc Diplomate ACVA Jason W Gagne BS Kyla Ortved DVM Nathan L Dykes DVM Diplomate ACVR & William A Horne DVM PhD Diplomate ACVA |
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| Institution: | Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA |
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| Abstract: | ObservationsA 1-month-old Nubian goat presented for sialocyst resection. Physical examination and bloodwork were unremarkable. While pre-oxygenating, the goat was sedated with midazolam and morphine (0.1 mg kg?1 each) intravenously (IV). General anesthesia was induced 5 minutes later with 1.7 mg kg?1 propofol. Sevoflurane was administered in oxygen without assisted ventilation via a cuffed orotracheal tube. Throughout the first 85 minutes of anesthesia, the goat was well-oxygenated (SpO2, ≥97%), ventilating adequately (Pe′CO2, 36–48 mmHg), and had normal mean arterial blood pressure (MAP, 60–85 mmHg). Blood-gas values at 45 minutes were consistent with adequate ventilation on oxygen. At 75 minutes, the goat moved in response to surgical stimulation, requiring additional propofol (0.4 mg kg?1). After 10 minutes, MAP dropped precipitously to 40 mmHg and frequent multiform premature ventricular contractions (PVCs) were observed. Crystalloids, hetastarch, and dopamine (5 μg kg?1 minute?1) were administered to correct the hypotension. Arterial blood-gas analysis revealed that the goat had become hypoxemic (PaO2, 50 mmHg). Intermittent positive pressure ventilation (IPPV) was initiated. Subsequent blood-gas analysis did not show significant improvement in PaO2 (53 and 56 mmHg, respectively). Occasional PVCs were observed thereafter. Surgery ended, and sevoflurane and IPPV were discontinued. The goat was extubated within 7 minutes and received 100% oxygen by mask. Diffuse crackles were ausculted over both hemithoraces. Suspecting pulmonary edema, furosemide (1 mg kg?1) was administered IV. Radiographs taken immediately post-operatively revealed a severe, caudodorsal airspace (alveolar) pattern, confirming the diagnosis. Respiration improved considerably within an hour with nasal oxygen and two additional doses of furosemide.ConclusionsThe goat developed acute, drug-induced, noncardiogenic pulmonary edema in response to the second dose of propofol. |
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| Keywords: | anaphylaxis goat hypoxemia morphine noncardiogenic pulmonary edema propofol |
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