Tags

Type your tag names separated by a space and hit enter

Association of clinical and magnetic resonance imaging findings with outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusion: 42 cases (2000-2007).
J Am Vet Med Assoc. 2009 Feb 15; 234(4):495-504.JA

Abstract

OBJECTIVE

To assess associations of severity of neurologic signs (neurologic score), involvement of an intumescence, and findings of magnetic resonance imaging (MRI) with interval to recovery and outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusions.

DESIGN

Retrospective case series.

ANIMALS

42 dogs with presumptive acute noncompressive nucleus pulposus extrusions.

PROCEDURES

Medical records and magnetic resonance (MR) images of dogs evaluated from 2000 through 2007 were reviewed. Inclusion criteria were acute onset of nonprogressive myelopathy following trauma or strenuous exercise, MRI of the spine performed within 7 days after onset, MRI findings consistent with acute noncompressive nucleus pulposus extrusions, and complete medical records and follow-up.

RESULTS

Clinical neuroanatomic localization of lesions was to the C1-C5 (n = 6), C6-T2 (6), T3-L3 (28), and L4-S3 (2) spinal cord segments. Median neurologic score was 3.5. Median duration of follow-up was 804 days (range, 3 to 2,134 days) after onset of neurologic signs. Outcome was successful in 28 (67%) dogs and unsuccessful in 14 (33%) dogs. Severity of neurologic signs, extent of the intramedullary hyperintensity on sagittal and transverse T2-weighted MR images, and detection of intramedullary hypointensity on GRE images were all associated with outcome on univariate analysis. Results of multivariate analysis suggested that maximal cross-sectional area of the intramedullary hyperintensity on transverse T2-weighted MR images was the best predictor of outcome.

CONCLUSIONS AND CLINICAL IMPORTANCE

Clinical and MRI findings can help predict outcome in dogs with acute noncompressive nucleus pulposus extrusions.

Authors+Show Affiliations

Centre for Small Animal Studies, Animal Health Trust, Newmarket, Suffolk, England.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19222359

Citation

De Risio, Luisa, et al. "Association of Clinical and Magnetic Resonance Imaging Findings With Outcome in Dogs With Presumptive Acute Noncompressive Nucleus Pulposus Extrusion: 42 Cases (2000-2007)." Journal of the American Veterinary Medical Association, vol. 234, no. 4, 2009, pp. 495-504.
De Risio L, Adams V, Dennis R, et al. Association of clinical and magnetic resonance imaging findings with outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusion: 42 cases (2000-2007). J Am Vet Med Assoc. 2009;234(4):495-504.
De Risio, L., Adams, V., Dennis, R., & McConnell, F. J. (2009). Association of clinical and magnetic resonance imaging findings with outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusion: 42 cases (2000-2007). Journal of the American Veterinary Medical Association, 234(4), 495-504. https://doi.org/10.2460/javma.234.4.495
De Risio L, et al. Association of Clinical and Magnetic Resonance Imaging Findings With Outcome in Dogs With Presumptive Acute Noncompressive Nucleus Pulposus Extrusion: 42 Cases (2000-2007). J Am Vet Med Assoc. 2009 Feb 15;234(4):495-504. PubMed PMID: 19222359.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Association of clinical and magnetic resonance imaging findings with outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusion: 42 cases (2000-2007). AU - De Risio,Luisa, AU - Adams,Vicki, AU - Dennis,Ruth, AU - McConnell,Fraser J, PY - 2009/2/19/entrez PY - 2009/2/19/pubmed PY - 2009/4/8/medline SP - 495 EP - 504 JF - Journal of the American Veterinary Medical Association JO - J Am Vet Med Assoc VL - 234 IS - 4 N2 - OBJECTIVE: To assess associations of severity of neurologic signs (neurologic score), involvement of an intumescence, and findings of magnetic resonance imaging (MRI) with interval to recovery and outcome in dogs with presumptive acute noncompressive nucleus pulposus extrusions. DESIGN: Retrospective case series. ANIMALS: 42 dogs with presumptive acute noncompressive nucleus pulposus extrusions. PROCEDURES: Medical records and magnetic resonance (MR) images of dogs evaluated from 2000 through 2007 were reviewed. Inclusion criteria were acute onset of nonprogressive myelopathy following trauma or strenuous exercise, MRI of the spine performed within 7 days after onset, MRI findings consistent with acute noncompressive nucleus pulposus extrusions, and complete medical records and follow-up. RESULTS: Clinical neuroanatomic localization of lesions was to the C1-C5 (n = 6), C6-T2 (6), T3-L3 (28), and L4-S3 (2) spinal cord segments. Median neurologic score was 3.5. Median duration of follow-up was 804 days (range, 3 to 2,134 days) after onset of neurologic signs. Outcome was successful in 28 (67%) dogs and unsuccessful in 14 (33%) dogs. Severity of neurologic signs, extent of the intramedullary hyperintensity on sagittal and transverse T2-weighted MR images, and detection of intramedullary hypointensity on GRE images were all associated with outcome on univariate analysis. Results of multivariate analysis suggested that maximal cross-sectional area of the intramedullary hyperintensity on transverse T2-weighted MR images was the best predictor of outcome. CONCLUSIONS AND CLINICAL IMPORTANCE: Clinical and MRI findings can help predict outcome in dogs with acute noncompressive nucleus pulposus extrusions. SN - 0003-1488 UR - https://www.unboundmedicine.com/medline/citation/19222359/Association_of_clinical_and_magnetic_resonance_imaging_findings_with_outcome_in_dogs_with_presumptive_acute_noncompressive_nucleus_pulposus_extrusion:_42_cases__2000_2007__ L2 - https://avmajournals.avma.org/doi/10.2460/javma.234.4.495?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -