Spinal epidural arteriovenous fistula in 3 cats

Yayoshi, Naoko; Yoshida, Karin; Terao, Masashi; Ozawa, Tsuyoshi; Kamishina, Hiroaki; Takahashi, Fumitaka; HARA, Yasushi; Yu, Yoshihiko; Hasegawa, Daisuke

doi:10.1111/jvim.16523

Cited by 2 publications

(1 citation statement)

References 19 publications

(48 reference statements)

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“…CT was used in combination with MR in three cats with arteriovenous fistulas in the thoracic region of the spinal cord. The authors found that both imaging modalities complemented one another to reach a diagnosis ( 28 ). An angiographic study was not performed in the case reported here.…”

Section: Discussionmentioning

confidence: 99%

Case report: Surgical treatment and long-term successful outcome of a spinal intramedullary vascular malformation in a dog

Santifort

Płonek²,

Grinwis

et al. 2023

Front. Vet. Sci.

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A 3.5-year-old male intact Staffordshire terrier crossbreed dog was presented with a one-week history of progressive paraparesis with fecal and urinary incontinence. Neurological examination was consistent with a T3-L3 myelopathy. A magnetic resonance imaging study revealed the presence of a well-circumscribed hemorrhagic space-occupying lesion at the level of T12, suspected to be a vascular malformation, such as cavernoma or arteriovenous fistula, primary hematoma or hamartoma; less likely considerations included hemorrhagic inflammation or hemorrhagic primary or secondary neoplasia. A dorsal laminectomy, durotomy, and midline dorsal myelotomy were performed with a surgical microscope, and the vascular lesion was identified and removed. Histological examination of surgical samples yielded fibrin, hemorrhage, hematoidin pigment, and some neural tissue. Although a lining wall was visualized during surgery consistent with a vascular malformation, there was no histological confirmation of such a structure, hampering definitive classification of the lesion. There was no gross or histopathological evidence that would support a diagnosis of a hamartoma or benign neoplasia. The dog was paraplegic with intact nociception the day following surgery. Ambulation was recovered within 2 weeks. Progressive and complete recovery of neurological function was seen over the next 12 weeks. No recurrence of neurological dysfunction was seen over a 12-month follow-up period. Surgical treatment should be considered in dogs with spinal intramedullary vascular lesions which can have a successful long-term outcome.

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Section: Discussionmentioning

confidence: 99%

Case report: Surgical treatment and long-term successful outcome of a spinal intramedullary vascular malformation in a dog

Santifort

Płonek²,

Grinwis

et al. 2023

Front. Vet. Sci.

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Spinal epidural arteriovenous fistula in 3 cats

Yayoshi

Yoshida

Terao

et al. 2022

Veterinary Internal Medicne

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Three young adult cats with intermittent spinal hyperesthesia and paraparesis and diagnosed with spinal epidural arteriovenous fistula are described. In all 3 cases, magnetic resonance imaging (MRI) showed focal dilatation of the veins in the epidural space of the thoracic spinal cord, whereas computed tomography angiography (CTA) showed dilatation and enhancement from the intercostal vein to the azygos vein at the same site in the arterial phase. Dorsal laminectomy and occlusion of the interarcuate branches running across the dorsal aspect of the spinal cord were performed in all 3 cats to decompress the spinal cord, which resulted in a remission of clinical signs and no recurrence during 14 to 40 months of follow-up after surgery in all cases.

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Spinal epidural arteriovenous fistula in 3 cats

Cited by 2 publications

References 19 publications

Case report: Surgical treatment and long-term successful outcome of a spinal intramedullary vascular malformation in a dog

Case report: Surgical treatment and long-term successful outcome of a spinal intramedullary vascular malformation in a dog

Spinal epidural arteriovenous fistula in 3 cats

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