Diagnosis and treatment of a congenital portosystemic shunt in a ferret (Mustela putorius furo).

A 3-year-old female neutered ferret presented with progressive weight loss was diagnosed with portosystemic shunting based on increased fasting bile acids, rectal ammonia tolerance testing and advanced imaging. Ammonia reference values were determined in 16 healthy ferrets. A congenital extrahepatic spleno-caval shunt was visualised with ultrasonography and CT angiography of the abdomen. Complete surgical shunt closure by suture ligation was performed, without clinical improvement after surgery. Euthanasia was elected 4 months postoperatively because the clinical condition deteriorated. This is a case report of advanced diagnostics and surgical treatment of a congenital extrahepatic portosystemic shunt in a ferret, demonstrating rectal ammonia tolerance testing and imaging as feasible techniques for the diagnosis.

Quantitative motor unit action potential analysis of paraspinal muscles, diagnostic imaging and necropsy findings in 36 horses suspected of cervical impairment.

INTRODUCTION: Aims: To determine the relation between quantitative electromyography (QEMG) of the cervical ventral serratus muscle, radiographic findings and post-mortem gross and histopathological examination in order to calculate the ability of QEMG to localize the region of cervical compressive neuropathy and myelopathy in horses. Methods: In this clinical, non-randomised, partially blinded study (QEMG and histology), 36 warmblood horses with clinical suspicion of cervical spine disease were examined with QEMG in different segments of the ventral serratus muscle. Results were compared to normative data. Diagnostic imaging was performed in 28 cases. All horses were euthanized because of poor clinical prognoses and/or recurrent clinical neurological signs despite treatment and underwent necropsy with emphasis on the cervical nervous tissue and vertebrae. Clinical and diagnostic imaging findings, QEMG results and post mortem findings were compared with each other. Results: Overall mean values of duration (9.54 ms), polyphasia, number of phases (3.6) and size index (0.67) in horses with cervical lesions were significantly (P.

INTRODUCTION: Objectifs: Déterminer la relation entre l>électromyographie quantitative (QEMG) du muscle serratus ventral cervical, les résultats radiographiques et les examens macroscopiques et histopathologiques post mortem afin de calculer la capacité de la QEMG à localiser la région de compression neurogène dans l'encolure des chevaux. Méthodes: Dans cette étude clinique, non randomisée, partiellement aveugle (histologie et QEMG), 36 chevaux de sang soupçonnés d'affection du rachis cervical ont été examinés par QEMG sur différents segments du muscle serratus ventral. Les résultats ont été comparés aux données de référence. L'imagerie diagnostique a été réalisée dans 28 cas. Tous les chevaux ont été euthanasiés en raison de mauvais pronostics cliniques et/ou de signes neurologiques cliniques récurrents malgré le traitement et ont subi une autopsie en mettant l'accent sur le tissu nerveux cervical et les vertèbres. Les résultats de l'imagerie clinique et diagnostique, les résultats de la QEMG et les résultats post mortem ont été comparés les uns aux autres. Résultats: Les valeurs moyennes globales de durée (9,54 ms), de polyphasie, de nombre de phases (3,6) et d'indice de taille (0,67) chez les chevaux présentant des lésions cervicales étaient significativement (P.