Idiopathic cervical abscesses in dogs follow seasonal trends and geographic risk factors, predominantly affecting young, large breeds: a case-control study of 67 dogs in New England.

OBJECTIVE: Describe and identify risk factors and spatiotemporal trends associated with the development of idiopathic cervical abscesses (CAs) in dogs in the Cape Cod region. The authors hypothesized that CAs without an external communicating tract would have a seasonal trend and would not be associated with identifiable foreign material. ANIMALS: 67 dogs. METHODS: Retrospective observational case-control study enrolling dogs between 2016 and 2020. Compiled patient information included age, breed, sex, weight, date of presentation, and ZIP code. Statistical evaluation was performed by use of multivariate logistic regression modeling and spatiotemporal analyses with government-compiled land cover data. Control dogs were randomly selected in a 3:1 ratio to cases. RESULTS: 67 cases were investigated. The final multivariable logistic regression model found a significant seasonal effect, with most cases in September (OR, 4.80; 95% CI, 1.91 to 12.02). Spatial analyses revealed increased risk in a cluster of 13 ZIP codes, with OR of 4.40 (95% CI, 1.95 to 9.95). Weight was a risk factor; each additional kilogram was associated with an 18.8% increase in odds (OR, 1.188; 95% CI, 1.053 to 1.341) until a maximum risk at 15 kg. Younger dogs were at greater odds; for each additional year of age, the odds of having CAs were reduced by 8.9% (OR, 0.911; 95% CI, 0.837 to 0.991). No foreign material inciting cause was identified in any of the 67 cases. CLINICAL SIGNIFICANCE: Idiopathic CAs should be a differential for young, large-breed dogs with cervical swelling in the Northeastern US. This study documented seasonality, geographical trends, and signalment predispositions for idiopathic CAs.

Decompressive craniectomy surgery in a dog with intracranial extradural hematoma following blunt force trauma.

A young miniature poodle was presented following blunt force trauma to the head. The dog initially responded well to medical management before developing clinical signs associated with increased intracranial pressure 48 h post-injury that became refractory to hyperosmolar therapy. A computed tomography scan obtained 76 h post-injury showed a short, oblique, non-displaced, complete fissure in the right temporal bone and a second short, oblique, non-displaced, complete fissure in the ventral aspect of the temporal bone. A biconvex, moderately hyperattenuating, space-occupying temporoparietal lesion was visualized immediately adjacent to the area of the temporal fractures. These findings were consistent with a diagnosis of intracranial extradural hematoma. Decompressive craniectomy successfully evacuated the extradural hematoma to alleviate increased intracranial pressure. The dog's neurologic function recovered quickly postoperatively. At follow-up physical examinations at 14 and 437 d, excellent return to function was noted. Key clinical message: This report describes the diagnosis and surgical management of an intracranial extradural hematoma in a dog with increased intracranial pressure refractory to medical management. Furthermore, this report describes the diagnostic imaging findings used to diagnose this particular form of primary brain injury.

Chirurgie de craniectomie décompressive chez un chien présentant un hématome extradural intracrânien à la suite d'un traumatisme contondant. Un jeune caniche miniature a été présenté à la suite d'un traumatisme contondant à la tête. Le chien a initialement bien répondu à la prise en charge médicale avant de développer des signes cliniques associés à une augmentation de la pression intracrânienne 48 heures après la blessure, qui sont devenus réfractaires au traitement hyperosmolaire. Une tomodensitométrie obtenue 76 heures après la blessure a montré une fissure complète courte, oblique, non déplacée dans l'os temporal droit et une deuxième fissure complète courte, oblique, non déplacée dans la face ventrale de l'os temporal. Une lésion temporo-pariétale biconvexe, modérément hyperatténuée et occupant de l'espace a été visualisée immédiatement à côté de la zone des fractures temporales. Ces résultats concordaient avec un diagnostic d'hématome extradural intracrânien. La craniectomie décompressive a réussi à évacuer l'hématome extradural pour atténuer l'augmentation de la pression intracrânienne. La fonction neurologique du chien s'est rétablie rapidement après l'opération. Lors des examens physiques de suivi à 14 et 437 jours, un excellent retour au fonctionnement a été noté.Message clinique clé:Ce rapport décrit le diagnostic et la prise en charge chirurgicale d'un hématome extradural intracrânien chez un chien présentant une augmentation de la pression intracrânienne réfractaire à la prise en charge médicale. En outre, ce rapport décrit les résultats de l'imagerie diagnostique utilisée pour diagnostiquer cette forme particulière de lésion cérébrale primaire.(Traduit par Dr Serge Messier).

Peritoneal-pericardial diaphragmatic hernia in a 6-year-old male intact pug dog.

A 6-year-old intact male pug dog was referred to the Atlantic Veterinary College veterinary teaching hospital for a surgical consultation after survey radiographs taken by the referring veterinarian led to a tentative diagnosis of a peritoneal-pericardial diaphragmatic hernia. Computed tomography of the thorax and abdomen prior to surgery further characterized the lesion and aided in surgical planning. Surgical correction of the defect was achieved via primary herniorrhaphy. The patient was discharged and was reported to be doing well 7 months after surgery.

Hernie péritonéale-péricardique diaphragmatique chez un carlin mâle non-castré âgé de 6 ans. Un carlin mâle non-castré âgé de 6 ans fut référé à l'hôpital d'enseignement vétérinaire de l'Atlantic Veterinary College pour une consultation chirurgicale à la suite des radiographies prises par le vétérinaire référant qui ont mené à un diagnostic préliminaire d'hernie péritonéale-péricardique diaphragmatique. La tomodensitométrie du thorax et de l'abdomen avant la chirurgie a permis de mieux caractériser la lésion et a aidé dans la planification de la chirurgie. La correction chirurgicale du défaut fut réalisée par hernioraphie primaire. Le patient obtint son congé et allait bien 7 mois après la chirurgie.(Traduit par Dr Serge Messier).