2021 JVIM ✔️ Flashcards
Multicenter, randomized, double-blinded, placebo-controlled study of rabacfosadine in dogs with lymphoma
Tanovea = Rabacfosadine
Significant antitumor efficacy in dogs with lymphoma when administered every 21 days for up to 5 treatments as compared to placebo.
Progression free survival longer in RAB than control (82 vs. 21d).
Best overall response rate 73% with Tanovea.
- 50% CR
- 22% PR
1 month after treatment 33% progression free
Adverse effect
- diarrhea 88%
- anorexia 68%
- vomiting 68%
Serious adverse events 20%
Use of contrast-enhanced computed tomography (CECT) to detect kidney infarction in dogs
The CECT, especially the sagittal plane, is a useful diagnostic tool for the detection of kidney infarction in dogs.
frequency 3.15%
most = grade 1 = lesions less than 25% kidney
Most on caudal pole
Sagittal plane = best
Glycogen storage disease in a young cat with heart failure
8mo FE DSH
presenting for acute tachypnea, poor growth, hypothermia, lethargy
TXR - cardiomegaly, mild pleural effusion
Echo - dilation of both atria, left ventricular systolic dysfunction
Died of pulmonary edema 135d
Necropsy - vacuolation of heart muscles with glycogen
Glycogen storage disease type 2 = Pompe Disease.
Effect of washing units of canine red blood cells on storage lesions
A single wash of stored whole blood significantly reduces most extracellular storage lesions, and additional washing might cause hemolysis.
Washing =
- decrease potassium, lactate, and partial pressure of CO2
- increase mean cell volume and mean corpuscular fragility
Novel clonality assays for T cell lymphoma in cats targeting the T cell receptor beta, T cell receptor delta, and T cell receptor gamma loci
The assessment of multiple T cell loci compensates for the potential shortcomings of individual assays. Using a combination of molecular clonality assays will increase the overall sensitivity for the diagnosis of T-cell lymphoma in cats, especially intestinal, and hepatic small cell lymphoma. Hepatic small cell lymphomas detected by the new TRG assay utilized rarely expressed V and J genes not recognized by previous assays, likely indicating unique biology of hepatic small cell lymphoma in cats.
Multiplex clonality assay highest sensitivity (95.5%).
Lowest specificity 97%.
Better for livers.
Seasonal variation in serum metabolites of northern European dogs
We found no clear evidence that seasonal reference ranges need to be established for serum metabolites of dogs.
93/98 = no seasonal variance.
Seasonal variance in
- cholesterol (peak June, trough Dec)
- lactate (higher in winter)
Plasma sodium and potassium concentrations after hypophysectomy in dogs with corticotroph adenomas
Hypernatremia remains a frequent postop complication after transsphenoidal hypophysectomy but did not appear to have an impact on outcome.
No predisposing factor to postoperative hypernatremia was identified.
Variations in plasma potassium concentrations do not seem to influence postoperative outcome.
Hypophysectomy to remove pituitary corticotrophic adenomas.
Hypernatremia 46%
- increased after sx then peaked 8h post
- normalized 24-48h
Hyponatremia 6%
Potassium increased without exceeding reference limit.
No association with clinical / sx variables, electrolyte concentrations, and death / outcome.
Sx time significantly longer in dogs that developed DI
Enlarged pituitary.= prolonged DI
Transvenous embolization of moderate to large patent ductus arteriosus in dogs using the Amplatzer vascular plug II (AVP-II)
The AVP-II is a safe and effective device for transvenous embolization in dogs with moderate to large PDA.
Success in 95% with 1st surgery, 100% with second.
Post release = occlusion in 53%
Closure rate after 24h = 95%
Primary orthostatic tremor (OT) and orthostatic tremor-plus in dogs: 60 cases (2003-2020)
Primary OT is a progressive disease of young, purebred, giant (83%) / large-breed dogs, which appears to begin later in life in Retrievers.
Primary OT apparently responds partially to medications. (85% saw improvement).
Tx - phenobarbital, primidone, gabapentin / pregab, clonazepam.
Orthostatic tremor-plus exists in dogs and can be concomitant or associated with other neurological diseases.
Most younger than 2
Retrievers older than 3.5
Pelvic limb tremors while standing in 85%
Difficulty sitting/rising 45%
Subcutaneous ureteral bypass device placement in 81 cats with benign ureteral obstruction (BUO) (2013-2018)
SUBS - good outcomes
Can be considered in treatment of BUO.
94% survival to discharge
Creat at admit 5.3
Creat at discharge 2.1
- Luminal obstructions 17% of SUBS discharged
- Infection 26%
- Kinking 10%
Time to obstruction and kink 204d.
17% required revision sx to restore patency.
Mean survival time 821d
53% alive at writing
Of those that died, 52% urinary related.
Frequency of signs of chronic gastrointestinal disease in dogs after an episode of acute hemorrhagic diarrhea
Severe intestinal mucosal damage and associated barrier dysfunction might trigger chronic GI disease later in life.
Higher prevalence of signs of chronic GI disease in dogs that experienced AHDS than control.
Interleukin-6 and thrombopoietin concentrations in dogs with carcinoma with and without thrombocytosis
Thrombopoietin concentrations were significantly higher in dogs with carcinoma, regardless of platelet count.
Carcinoma associated thrombocytosis secondary to tumor producing mediators.
19% had thrombocytosis with carcinoma
TPO higher in carcinoma dogs.
IL-6 not different between groups.
In carcinoma dogs, TPO and IL-6 were not different between dogs that had thrombocytosis vs. not.
Retrospective evaluation of cystoscopic-guided laser ablation (CLA) of intramural ectopic ureters (EU) in female dogs
Cystoscopic-guided laser ablation for intramural EU in female dogs provides improvement in incontinence.
Dogs remaining incontinent after CLA may improve with adjunctive medical management.
Surgical management is required to manage incontinence in dogs with extramural EU.
Median continence score
- before = 2
- after CLA alone =3
55% adjunctive medical management
overall 67% considered continent with or without adjunctive meds
No pre- or peri-op factors associated with final continence score.
Echocardiographic reference intervals for right ventricular indices, including 3-dimensional volume and 2-dimensional strain measurements in healthy dogs
Echocardiographic RIs for RV structure and function are provided.
Goal to generate reference intervals for RV function indices.
Cushing’s syndrome caused by intra-adrenocortical ACTH in a dog
13y Lab - dx Cushings
Pituitary cushings = ACTH dependent
adrenal cushings = ACTH independent
primary bilateral nodular adrenocortical hyperplasia associated with a pheochromocytoma
Primary bilateral nodular adrenocrotical hyperplasia with ACTH expression in the adrenal gland.
ACTH independent may be a misnomer because in this case, adrenal cushing’s had ACTH expression.
Urinary 11-dehydrothromboxane B2 concentrations in 20 dogs with primary immune-mediated hemolytic anemia
Urinary 11-dTXB:Cr (urinary 11-dehydrothromboxane B2 to urine creatinine ratio) is increased in dogs with IMHA
= consistent with a prothrombotic state.
u11-dTXB:Cr was not associated with survival or suspected thrombosis.
No markers of thrombotic risk in IMHA determined in dogs.
Urinary thromboxane is a marker for prothrombotic state in humans.
Agreement and differentiation of intradural spinal cord lesions in dogs using magnetic resonance imaging
Overall accuracy in diagnosis (75%) was reasonable.
Positive diagnostic calls for intradural extramedullary lesions and degenerative myelopathy = helpful
Negative calls for intramedullary lesions = helpful
Observers exhibited considerable disagreement in designation of lesions relationship to the meninges.
Suspected primary hyperreninism in a cat with malignant renal sarcoma and global renin-angiotensin-aldosterone system upregulation
14y MN DMH with DM was evaluated for vomiting, diarrhea, anorexia.
DX with CHF 2 weeks prior.
Initial testing - hypokalemia, hypertension, HCM
High plasma aldosterone
AUS - bilateral adrenomegaly and renal mass
Persistently increased renin activity, generalized RAAS upregulation.
Primary hyperrenninism = dx.
Possible renin secreting tumor?
Comparison of serum creatine kinase (CK) and aspartate aminotransferase (AST) activity in dogs with Neospora meningoencephalitis and noninfectious meningoencephalitis
High serum CK and AST activity can increase suspicion for neosporosis while awaiting serological tests for dogs with meningoencephalitis.
CK cutoff 485 U/L had high specificity, sensitivity, and NPV
AST cutoff 57 U/L had high sensitivity, okay specificity, and high NPV.
Toxicity of zoledronic acid after intravenous administration: A retrospective study of 95 dogs
Multiple doses of ZA were well tolerated.
A small number of dogs developed progressive azotemia which was not associated with cumulative dose.
Adverse effects
- azotemia
- vomiting
- pancreatitis
- cutaneous ulceration
- diarrhea
Utility of a corticotropin-releasing hormone test (CRHT) to differentiate pituitary-dependent hyperadrenocorticism from cortisol-producing adrenal tumors (CPAT) in dogs
CRHT appears to be a rapid and reliable test for differentiating PDH from CPAT in dogs.
No correlation between pituitary to brain ratio and CRHT OR adrenal size and CRHT.
Association between hyperlipidemia and calcium oxalate lower urinary tract uroliths in dogs
Serum lipid screening in dogs diagnosed with CaOx uroliths might be recommended to improve their medical staging and management.
(excluding min schnauz)
Odds of having uroliths increased by a factor of
- 3.32 for each mmol/L of triglycerides
- 39 for each mmol/L of glycemia
- 2.43 per unit of BCS
Effect of TG retained when all breeds included
- odds 4.34 for each mmol/L of TG increase.
Triglycerides increases odds in all breeds.
Congenital muscular dystrophy in a dog with a LAMA2 gene deletion
2y FS Dog presenting for a hx of short strided gait and inability to open jaw
CK high
Dystrophic phenotype on histology of muscle biopsies
Deficiency in laminin a2 protein
Deletion in the LAMA2 gene
= Congenital muscular dystrophy associated with LAMA2 variant
Evaluation of various sample sources for the cytologic diagnosis of Cytauxzoon felis
Schizont-laden macrophages are most frequently identified in spleen.
If the diagnosis of acute cytauxzoonosis cannot be confirmed via blood film, then splenic, followed by peripheral lymph node aspirates can be considered.
Cytauxzoon = life threatening protozoam diseae in cats.
- dx = identifying schizont laden macrophages on cytology
seen on 33% blood smear
56% LN aspirates
77% splenic aspirates