Thoracic Vertebral Canal Stenosis Associated with Vertebral Arch Anomalies in Small Brachycephalic Screw-Tail Dog Breeds

2020 ◽  
Author(s):  
Alessandro Conte ◽  
Marco Bernardini ◽  
Steven De Decker ◽  
Cristoforo Ricco ◽  
Sebastien Behr ◽  
...  
Keyword(s):  
Neurological Deficits ◽  
Imaging Features ◽  
Multicentric Study ◽  
Long Term Outcome ◽  
Vertebral Canal ◽  
Neurological Signs ◽  
Canal Stenosis ◽  
Group 2 ◽  
Clinical Records ◽  
Group 1

Abstract Objective The aim of this study was to describe clinical and imaging features of thoracic vertebral canal stenosis secondary to the hypertrophy of the vertebral lamina and articular processes in screw-tail brachycephalic dog breeds, to evaluate the prevalence of the malformation in a large group of screw-tail dog breeds and to determine if degree of stenosis is associated with presence of neurological signs. Study Design This is a retrospective multicentric study. Materials and Methods Clinical records of 185 screw-tail brachycephalic dogs (French Bulldogs, English Bulldogs, Boston Terriers) and Pugs were reviewed. Ten dogs with neurological deficits secondary to thoracic vertebral canal stenosis diagnosed on magnetic resonance imaging were identified (Group 1). Neurologically normal dogs (n = 175) of the same breeds underwent computed tomographic imaging of the thoracic vertebral column for other medical reasons (Group 2). Cross-sectional measurements were used to calculate a stenotic ratio. Results Group 1 consisted of three French Bulldogs, six English Bulldogs and one Pug. Eight were males. Most dogs presented with progressive non-painful pelvic limbs ataxia and paresis. Twenty stenotic sites were identified with the most common being T4–T5. Three of ten dogs were treated surgically and all had a good long-term outcome. In Group 2, 33 of 175 dogs had one or more stenotic sites with the most common being T2–T3. The degree of the stenosis was significantly higher in Group 1 (p = 0.019). A stenotic ratio of 0.56 had sensitivity and specificity of 67% to differentiate between dogs with and without neurological signs. Conclusion Cranial thoracic vertebral canal stenosis is observed predominantly in young male Bulldogs, but not all stenoses are clinically relevant.

scholarly journals Long-term outcome of endocardial-only versus combined endocardial-epicardial homogenization of the scar for treatment of ventricular tachycardia in patients with ischemic cardiomyopathy

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S Mohanty ◽  
C Trivedi ◽  
D G Della Rocca ◽  
C Gianni ◽  
B MacDonald ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ischemic Cardiomyopathy ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Long Term Outcome ◽  
Obstructive Sleep ◽  
Number Of Patients ◽  
Group 2 ◽  
Group 1

Abstract Introduction We investigated the ablation success of scar homogenization with combined (epicardial + endocardial) versus endocardial-only approach for ventricular tachycardia (VT) in patients with ischemic cardiomyopathy (ICM) at 5 years of follow-up. Method Consecutive ICM patients undergoing VT ablation at our center were classified into group 1: endocardial scar homogenization and group 2: endocardial +epicardial scar homogenization. Patients with previous open heart surgery were excluded. All patients underwent bipolar substrate mapping with standard scar settings defined as normal tissue >1.5 mV and severe scar <0.5 mV. Non-inducibility of monomorphic VT was the procedural endpoint in both groups. Patients were followed up twice a year for 5 years with implantable device interrogations. Results A total of 361 (Group 1: 291 and group 2: 70) patients were included in the study (mean age: 67 years, male: 88.4%). At 5 years, significantly higher number of patients from group 2 remained arrhythmia-free (figure 1). Of those patients, 87 (45%) and 51 (89%) from group 1 and 2 respectively were off-anti-arrhythmic drugs (AAD) (p<0.001). After adjusting for age, gender, hypertension, diabetes, and obstructive sleep apnea, scar homogenization using endo-epicardial approach was associated with 51% less recurrence compared to the endocardial ablation strategy (Hazard Ratio: 0.49, 95% CI: 0.27–0.89, p: 0.02). Conclusion In this series of patients with ischemic cardiomyopathy and VT, endo-epicardial scar homogenization was associated with a lower need for AAD and a significantly lower recurrence rate at 5-years of follow-up compared to the endocardial ablation alone. FUNDunding Acknowledgement Type of funding sources: None. Figure 1

scholarly journals The volume of left atrium measured by multi-detector computed tomography can predict of long term outcome in catheter ablation of atrial fibrillation

2021 ◽  
Vol 22 (Supplement_3) ◽  
Author(s):  
YR Kim
Keyword(s):  
Computed Tomography ◽  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrium ◽  
Volume Estimation ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Group 2 ◽  
Group 1

Abstract Funding Acknowledgements Type of funding sources: None. Background This study aimed to identify the volume left atrium (LA) and left atrial appendage (LAA) calculated by multidetector computed tomography (MDCT) is related to the long term out come of radiofrequency catheter ablation (RFCA) for atrial fibrillation(AF). Methods We analyzed data from 99 consecutive patients who referred for RFCA due to drug-refractory symptomatic AF (age 56 ± 10 years; 74% men; 64% paroxysmal AF). Prior to the procedure, all patients underwent ECG-gated 128 channels MDCT scan for assessment for pulmonary vein  anatomy, LA and LAA volume estimation, and electro-anatomical mapping integration.  Results The volume of LA and LAA calculated by CT was 142.6 ± 32.2 mL and 14.7 ± 6.0 mL, respectively. LA volume was smaller in paroxysmal AF(PAF) than persistent AF(PeAF) (133.9 ± 29.3 mL vs. 158.0 ± 31.4 mL, p < 0.0001) but  LAA volume was not significantly different between PAF and PeAF(13.9 ± 5.0 mL vs. 16.3 ± 7.3 mL, p = 0.09). Patients were classified into 2 groups by the LA volume of 160mL; group 1  (LA volume < 160mL,n = 73) and group 2 (LA volume ≥160mL, n = 26). After a mean follow up 12.6 ± 5.3 months, 78.8% of the patients maintained sinus rhythm after the index ablation. AF free survival was significantly greater in group  1 than group 2 (84.9% vs. 61.5% p = 0.017). No relationship was found between LAA volume and the outcome of RFCA. Multivariate analysis showed that the LA volume >160mL was an independent predictor of arrhythmia-free after ablation (Hazard ration 2.55, 95% confidential interval 1.02-6.35, p = 0.045) Conclusion Higher LA volume is independent risk factor for AF recurrence after RFCA but not LAA volume. The LA volume quickly assessed by MDCT could be a good predictor of long term recurrence after AF ablation.

scholarly journals Cavernous Malformation of Brainstem, Thalamus, and Basal Ganglia

Neurosurgery ◽  
2012 ◽  
Vol 72 (4) ◽  
pp. 573-589 ◽  
Author(s):  
Paritosh Pandey ◽  
Erick M. Westbroek ◽  
Peter A. Gooderham ◽  
Gary K. Steinberg
Keyword(s):  
Basal Ganglia ◽  
Neurological Deficits ◽  
Term Outcome ◽  
Cavernous Malformations ◽  
Long Term Outcome ◽  
Brain Malformations ◽  
Hemorrhage Risk ◽  
Clinical Records

Abstract BACKGROUND: Cavernous malformations (CMs) in deep locations account for 9% to 35% of brain malformations and are surgically challenging. OBJECTIVE: To study the clinical features and outcomes following surgery for deep CMs and the complication of hypertrophic olivary degeneration (HOD). METHODS: Clinical records, radiological findings, operative details, and complications of 176 patients with deep CMs were reviewed retrospectively. RESULTS: Of 176 patients with 179 CMs, 136 CMs were in the brainstem, 27 in the basal ganglia, and 16 in the thalamus. Cranial nerve deficits (51.1%), hemiparesis (40.9%), numbness (34.7%), and cerebellar symptoms (38.6%) presented most commonly. Hemorrhage presented in 172 patients (70 single, 102 multiple). The annual retrospective hemorrhage rate was 5.1% (assuming CMs are congenital with uniform hemorrhage risk throughout life); the rebleed rate was 31.5%/patient per year. Surgical approach depended on the proximity of the CM to the pial or ependymal surface. Postoperatively, 121 patients (68.8%) had no new neurological deficits. Follow-up occurred in 170 patients. Delayed postoperative HOD developed in 9/134 (6.7%) patients with brainstem CMs. HOD occurred predominantly following surgery for pontine CMs (9/10 patients). Three patients with HOD had palatal myoclonus, nystagmus, and oscillopsia, whereas 1 patient each had limb tremor and hemiballismus. At follow-up, 105 patients (61.8%) improved, 44 (25.9%) were unchanged, and 19 (11.2%) worsened neurologically. Good preoperative modified Rankin Score (98.2% vs 54.5%, P = .001) and single hemorrhage (89% vs 77.3%, P < .05) were predictive of good long-term outcome. CONCLUSION: Symptomatic deep CMs can be resected with acceptable morbidity and outcomes. Good preoperative modified Rankin Score and single hemorrhage are predictors of good long-term outcome.

scholarly journals Benefits of prescribing low-dose digoxin in atrial fibrillation

2021 ◽  
Vol 35 ◽  
pp. 205873842110519
Author(s):  
Ciprian Ilie Rosca ◽  
Nilima Rajpal Kundnani ◽  
Anca Tudor ◽  
Maria-Silvia Rosca ◽  
Violeta-Ariana Nicoras ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Low Dose ◽  
Beta Blockers ◽  
Treatment Protocol ◽  
Factor Xa ◽  
Group 2 ◽  
Clinical Records ◽  
The Impact ◽  
Group 1

Introduction The role of digoxin (cardiac glycoside) in controlling the heart rate (HR) for the treatment of atrial fibrillation (AF) patients has not been explored in depth. Methods To contribute to the limited data, our team conducted retrospective analysis of the clinical records of 1444 AF patients. We divided the AF patients into two groups, wherein group 1 patients were treated with beta-blockers (BB), low-dose digoxin, and an anticoagulant (vitamin K antagonist/factor-IIa inhibitor/factor-Xa inhibitor), and group 2 patients were treated with just BB and an anticoagulant. Our objectives were to compare the impact of combination therapy of BB and digoxin on the resting HR in patients with permanent AF and the patients’ quality of life (QOL) at periodic intervals. Results The findings of our study showed a better control of the resting HR rate (<110bpm) and an improved QOL among the group 1 patients when compared with group 2 patients. Conclusion Our findings are indicative of the favorable clinical outcomes that resulted from the addition of a low-dose of digoxin to the AF treatment regimen. However, larger studies/trials elucidating the outcomes of AF patients treated with the dual rate control therapy are required, to clarify the role of digoxin, guide the choice of agents, and standardize the AF treatment protocol.

scholarly journals COVID-19 discharged patients in Hunan, China: correlation between early features and prognosis

2020 ◽  
Author(s):  
yeyu cai ◽  
jiayi liu ◽  
Haitao Yang ◽  
Taili Chen ◽  
Qizhi Yu ◽  
...  
Keyword(s):  
Chest Ct ◽  
Hunan Province ◽  
Impact Factors ◽  
Imaging Features ◽  
Persistent Symptoms ◽  
Significant Difference ◽  
Discharged Patients ◽  
Group 2 ◽  
The Impact ◽  
Group 1

Abstract Purpose To describe the correlation between the clinical, laboratory and radiological findings with hospitalization days in Coronavirus Infected Disease-19 (COVID-19) discharged patients. Method In this multicenter study, we retrospectively identified 153 discharged patients with COVID-19 pneumonia from Jan 16, 2020 to Feb 26, 2020 in Hunan province. Patients were grouped based on the hospitalization days: Group 1 (hospitalization days≦12 days) and Group 2((hospitalization days> 12days). Demographic, clinical characteristics and laboratory findings on admission and the imaging features of the first Chest CT on admission were analyzed. The differences between groups were analyzed using univariate logistic regression to find the impact factors. Results The cohort included 153 discharged patients (85 males and 68 females, with the mean age of 42.32±14.03 years old). 90(58.8%) patients had hospitalization days≦12 and 63(41.2%) patients had hospitalization days>12. 44(48.9%) patients in Group1 and 28(44.4%) in Group 2 had been to Wuhan. In both Group1 and Group2, most common symptoms at onset were fever (62.2%, 60.3%) and cough (33.3%, 50.8%). Cough was occurred more common in Group 2(50.8%) than Group 1(33.3%) with a significant difference (p=0.03). 6(6.7%) patients in Group1 and 10(15.9%) in Group2 had admitting diagnosis as non-pneumonia (p=0.07), some of them occurred mild pneumonia during hospital stay. White blood cell (2.2%, 9.5%) and neutrophil (9.5%) count above normal were more common on in Group 2 (p=0.04, p=0.04). Patients in Group 2 had higher concentration of aspartate aminotransferase (P=0.04) than Group 1. Most of patients had multiple lesions (75.6%, 69.8%) with bilateral distribution (73.3%, 58.7%) in both groups. Mixed ground-glass opacity (GGO) and consolidation appearance were seen in most patients. GGO components > consolidation appearance were more common in Group 1(31.1%) than in Group 2(8.0%) with a significant difference between groups (P<0.01). Patients had cough at onset disease (OR, 0.47; 95%CI, 0.23 to 0.96, p=0.04) and CT represented as GGO components more than consolidation (OR, 4.84; 95%CI, 1.80 to 13.04, p<0.01) were associated with hospitalization days. Conclusions COVID-19 non-pneumonia patients with longer hospitalization days might have the persistent symptoms or pneumonia occurrence after admission. Chest CT could help prompt diagnosis and monitor disease progression, GGO/consolidation >1 in mixed lesions was associated with shorter hospitalization days. Special attention should be paid to the role of radiological features in monitoring disease prognosis.

Phenotypic Spectrum of Myopathies with Recessive Anoctamin-5 Mutations

2020 ◽  
Vol 7 (4) ◽  
pp. 443-451
Author(s):  
José Vázquez ◽  
Claire Lefeuvre ◽  
Rosa Elena Escobar ◽  
Alexandra Berenice Luna Angulo ◽  
Antonio Miranda Duarte ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Pulmonary Function Tests ◽  
Lower Limbs ◽  
Manual Muscle Testing ◽  
Compound Heterozygous ◽  
Imaging Features ◽  
Muscular Weakness ◽  
Muscle Testing ◽  
Group 2 ◽  
Group 1

Background: Biallelic variants in Anoctamin 5 (ANO5) gene are causative of limb-girdle muscular dystrophy (LGMD) R12 anoctamin5-related, non-dysferlin Miyoshi-like distal myopathy (MMD3), and asymptomatic hyperCKemia. Objective: To describe clinic, histologic, genetic and imaging features, of ANO5 mutated patients. Methods: Five patients, four from France (P1, P2, P3 and P4) and one from Mexico (P5), from four families were included. P1 and P2, belonging to group 1, had normal muscle strength; Group 2, P3, P4 and P5, presented with muscular weakness. Muscle strength was measured by manual muscle testing, Medical Research Council (MRC) grades 1/5 to 5/5. Laboratory exams included serum CK levels, nerve conduction studies (NCS)/needle electromyography (EMG), pulmonary function tests, EKG and cardiac ultrasound. ANO5 molecular screening was performed with different approaches. Results: Group 1 patients showed myalgias with hyperCKemia or isolated hyperCKemia. Group 2 patients presented with limb-girdle or proximo-distal muscular weakness. Serum CK levels ranged from 897 to 5000 UI/L. Muscle biopsy analysis in P4 and P5 showed subsarcolemmal mitochondrial aggregates. Electron microscopy confirmed mitochondrial proliferation and revealed discontinuity of the sarcolemmal membrane. Muscle MRI showed asymmetrical fibro-fatty substitution predominant in the lower limbs. P1 and P2 were compound heterozygous for c.191dupA (p.Asn64Lysfs*15) and c.1898 + G>A; P3 was homozygous for the c.692G>T. (p.Gly231Val); P4 harbored a novel biallelic homozygous exons 1–7 ANO5 gene deletion, and P5 was homozygous for a c.172 C > T (p.(Arg 58 Trp)) ANO5 pathogenic variant. Conclusions: Our cohort confirms the wide clinical variability and enlarge the genetic spectrum of ANO5-related myopathies.

scholarly journals Thoracic vertebral canal stenosis due to articular process hypertrophy in two cats treated by hemilaminectomy with partial osteotomy of the spinous process

2019 ◽  
Vol 5 (2) ◽  
pp. 205511691986317 ◽  
Author(s):  
Beatrice Enrica Carletti ◽  
Irene Espadas ◽  
Daniel Sanchez-Masian
Keyword(s):  
Spinous Process ◽  
Cord Compression ◽  
Urinary Continence ◽  
Spinal Diseases ◽  
Imaging Features ◽  
Vertebral Canal ◽  
Canal Stenosis ◽  
Articular Process ◽  
Satisfactory Outcome ◽  
Postural Reaction

Case summary A 9-year-old neutered female British Shorthair cat (case 1) and a 13-year-old neutered male domestic shorthair cat (case 2) showed signs of chronic T3–L3 myelopathy, which progressed over 6 and 12 months, respectively. On presentation, case 1 had moderate pelvic limb proprioceptive ataxia and ambulatory paraparesis, and case 2 was non-ambulatory paraparetic and had urinary incontinence. Bilateral enlargement of the articular process joints at T11–T12 in case 1 and T3–T4 in case 2 causing dorsolateral extradural spinal cord compression was shown on MRI. Surgical decompression by a unilateral approach through hemilaminectomy with partial osteotomy of the spinous process was performed in both cases. The side of the approach was chosen based on the severity of the cord compression. Surgery resulted in a satisfactory outcome with short hospitalisation times. On discharge, case 1 showed mild postural reaction deficits on both pelvic limbs. Case 2 had regained urinary continence and could ambulate unassisted, although it remained severely ataxic. The 6 month follow-up showed very mild paraparesis and proprioceptive ataxia in both cats. No chronic medical treatment was required. Relevance and novel information This is the first report to describe clinical presentation, imaging features, surgical treatment and outcomes of thoracic vertebral canal stenosis owing to bilateral articular process hypertrophy in cats with no adjacent spinal diseases. Thoracic articular process hypertrophy should be included in the differential diagnosis of adult cats with chronic progressive myelopathy. Hemilaminectomy with partial osteotomy of the spinous process might be an appropriate surgical technique in these cases.

Socioeconomic status as an independent prognostic factor in node negative, stage I-II breast cancer patients

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 21129-21129
Author(s):  
I. Zeichner-Gancz ◽  
D. E. Munoz-Gonzalez ◽  
V. M. Pérez Sánchez ◽  
C. Castillero ◽  
M. Ramirez-Ugalde
Keyword(s):  
Breast Cancer ◽  
Socioeconomic Status ◽  
Statistical Significance ◽  
Stage I ◽  
High Status ◽  
Node Negative ◽  
Her 2 ◽  
Group 2 ◽  
Clinical Records ◽  
Group 1

21129 Background: Many prognostic factors for breast cancer are known, of those, clinical , histological, genetical and the socioeconomic status are considered important for the outcome of these patients. The objective of our study vas to evaluate the Socioeconomic status as an independent factor for survival Methods: Clinical records of node negative clinical stage I- II patients treated at the institution from 1980 to 1996 were reviewed . We included those initially treated with surgery, available paraphine blocks, follow up of at five years (the ones that had no recurrence). They were divided in two groups: 1: Lower socioeconomic status, economically deprived and 2: medium low to high status. The slides were reviewed s and the blocks were processed for immuno-histochemistry: steroid receptors, Her-2, p 53 and CD 34. The analysis was performed with X2, , t test and log rank for difference in survival Results: A total of 81 patients were studied, 35 in group 1, and 46 in group 2. Mean age for groups 1 and 2 was of 52 (28–74) and 52.9 (28–83) years respectively (p=0.39). Were stage I in group 1 8, II-28. In Group 2 were stage I, 12, II-34 (p=0.87). Patients in both groups were treated with surgery alone, with radiotherapy, chemotherapy and/or hormone therapy, without statistical significance for treatment.Vascular or lymphatic permeation was observed in 20 and 22 patients from groups 1 and 2 respectively (p=0.40). Mean SBR was of 7.2 and 7.1 respectively for groups 1 and 2 (p=0.54) Estrogen receptor was present in 10 and 11 patients (p=0.63) and progesterone receptor in 8 and 6 (p0.25) for each group. Her-2 was over expressed in 12 and 17 patients from group 1 and 2, p53 in 6 and 14 respectively (p=0.17)and CD34 in 7 and 6 for both groups respectively ( p=0.40). Median survival was of 225 months for group 1 and not reached at 243 months for group 2, with 90.22% alive, p= 0.005 Conclusions: According to our results, in this group of well studied patients, the only significant factor observed that had an impact over survival was the socioeconomic status. None of the clinical, histological or genetical variables showed significance. We think that prospective studies with special emphasis on the socioeconomic status have to be carried out in order to try to explain the differences that we observed. No significant financial relationships to disclose.

Abstract 13347: Effect of Severe Anemia (hemoglobin < 10g/dl) on Short- and Long-term Outcome in Acute Coronary Syndrome: Insights of a Terciary Centre

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Isabel Campos ◽  
Cátia Oliveira ◽  
Paulo Medeiros ◽  
Carla Marques Pires ◽  
Rui Flores ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Morbidity And Mortality ◽  
Severe Anemia ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Increased Risk ◽  
Short And Long Term ◽  
Group 2 ◽  
Group 1

Introduction: Although invasive strategies are the generalized approach in the management of ACS pts, their benefits in pts with significant anemia are unclear, as anemia is strongly associated with increased risk of morbidity and mortality. Aim: To determine the incidence and the impact of severe anemia (hemoglobin<10g/dL) on short- and long-term outcome in pts hospitalized with ACS. Methods: We analyzed retrospectively 2905 ACSpts admitted for 6 years in our CCU. Pts were divided into two groups: group 1-pts with severe anemia(hemoglobin < 10g/dL) (n=257,8.8%); group 2-pts without severe anemia (hemoglobin >=10g/dL) (n=2648,91.2%). Primary endpoint was the occurrence of a composite of death and adverse cardiovascular events (stroke, reinfarction, and rehospitalization of cardiovascular etiology) at 6 months; FU was completed in 96%pts. Results: The sample consisted in 77.9% men and 22.1% women, with mean age of 64±13 years. The incidence of severe anemia was 8.8%. Group1 pts were older (p<0.001), had a higher proportion of women (p<0.001), diabetes (p<0.001), CKD (p<0.001) and AF (p<0.001). During hospitalization, group 1 had more HF (p<0.001), angor (p<0.001), refarction (p=0.006), bleeding (p<0.001) and transfusion (p<0.001). Group 1 had a higher proportion of NSTEMI (p=0.009) as opposed to group2 which had more STEMI (p=0.031). During hospitalization, group 2 pts were more likely to undergo revascularization (p<0.001). A multivariate analysis identified age [OR 1.06, 95%CI 1.04 to 1.07; p<0.001] and feminine sex [OR 2.61, 95%CI 1.89 to 3.61; p<0.001] as independent predictors of severe anemia during hospitalization. Pts with severe anemia had higher 6-month mortality (32.1%vs6.9%;p<0.001). In multivariate analysis and after adjusting for different baseline characteristics, pts with severe anemia had higher occurrence of a composite of death and MACE at 6months [OR5.04,95%CI 1.21 to 21.04;p=0.026]. Conclusion: Severe anemia was strongly associated with increased risk of morbidity and mortality in ACS pts. However, pts with severe anemia who were double antiaggregated had no worse outcomes than those who had simple antiaggregation after 6months. Therefore, there was no significant difference regarding revascularization in these pts.

Cranial thoracic vertebral canal stenosis in three juvenile large-breed brachycephalic dogs treated by unilateral hemilaminectomy

2017 ◽  
Vol 30 (03) ◽  
pp. 223-229 ◽  
Author(s):  
Andrew Marchevsky ◽  
Amanda Miller
Keyword(s):  
Spinal Cord ◽  
Surgical Treatment ◽  
Case Series ◽  
Neurological Status ◽  
Cord Compression ◽  
Vertebral Canal ◽  
Neurological Signs ◽  
Canal Stenosis ◽  
Spinal Cord Segment ◽  
Independent Ambulation

SummaryObjective: To describe the surgical treatment and outcome for juvenile dogs with cranial thoracic vertebral canal stenosis treated by unilateral hemilaminectomy.Study design: Case series.Animals: Three large-breed brachycephalic dogs of various breeds (Dogue de Bordeaux, Australian Bulldog, Boerboel) with neurological signs consistent with a myelopathy of the third thoracic (T) to third lumbar (L) spinal cord segment.Methods: Information on clinical presentation, diagnostic imaging, surgical procedures, postoperative complications, recovery and outcome is described.Results: Neurological signs were present and progressive for two to four weeks prior to surgery and ranged from mild ataxia to paralysis. Cranial thoracic vertebral canal stenosis was diagnosed with computed tomography imaging. Lateral and dorsolateral spinal cord compression was present at multiple sites between T2 and T6. Alternating left and right-sided compressions were common. Surgical treatment was by unilateral, continuous hemilaminectomy over three to six vertebral spaces. Postoperative morbidity was minimal and return of independent ambulation was rapid (median: 13.5 days, range: 2–29 days). Neurological status in one dog worsened four months after surgery due to reoccurrence of osseous compression; unilateral hemilaminectomy was repeated in this dog. Long-term follow-up ranged from six to 10 months; neurological signs had completely resolved in one dog and substantially improved in the other two dogs.Clinical significance: Unilateral hemilaminectomy was associated with rapid return of independent ambulation and substantial improvement in neurological scores.

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