GI Literature Flashcards
In dogs with severe pancreatitis what is known about feeding early?
• 10 dogs with severe pancreatitis feed either via E -tube or TPN (pilot study) - standard tx (including plasma)
○ Early feeding via E-tube (proximal to pylorus) is well tolerated and has significantly less vomiting and regurg than the TPN group
§ TPN group has more complications (catheter related)
○ No difference in outcome
What is unique about chronic pancreatitis in English Cocker Spaniels?
• Chronic Pancreatitis in English Cocker Spaniel (8)
○ Mean age: 7.2 yrs (no difference in CS/presentation)
○ Cockers: Interlobular and periductual fibrosis/inflammation
§ Prominent AntiCd3+ lymphocytic infiltrates around venules and ducts, marked absence of interlobular ducts = Duct destruction!!!
○ Other Breeds: Intralobular dz
§ Mixed cell infiltration, ductular hyperplasia
What had the best overall performance when comparing Spec cPL, cPLI, amylase, and lipase?
Spec cPL ○ Spec cPL best overall performance (sen/spec) for diagnosing histopath pancreatitis
What s a method of obtaining FNA of pancreas?
• Ultrasound endoscopic FNA of pancreas (12/13 beagles) - Safe and feasible with 19G needle
○ Cellularity adequate 8/12 (transgastric and transduodenal)
○ All recovered within clinical or lab changes (48hrs)
In a population of dogs with clinical acute pancreatitis, what was found about SNAP and Spec cPL?
• 84 dogs (27 w/o acute pancreatitis; 57 with CS of acute pancreatitis) - Prospective, retrospectively groups (but blinded)
○ SNAP and Spec cPL = Higher sen/spec for diagnosing clinical AP than amylase/lipase
§ IF + = Good PPV in populations likely to have AP
§ IF - = Good NPV when low prevalence of dz
What was found in Mini Schanuzers in regards to SPINK1?
• High prevalence of SPINK1 (serine protease inhibitor Kazal type 1) c.74A>C in Mini (0.77) and Standard Schnauzers (0.55)
○ Allele/genotype freq similar in Mini Schnauzer w/ and w.o hx pancreatitis = NOT an increased risk (Unable to confirm relationship btwn variant and clinical pancreatitis in Mini Schnauzers)
In 35 cats with pancreatitis, what is the sen and spec of AUS?
• 35 cats with CS of pancreatitis, AUS, and fPLI
○ Presence of thick left limb of pancreas, severely irregular pancreatic margins, hyperechocic peripancreatic fat (sen 68%) in cats with CS and elevated fPLI = Highly supportive of pancreatitis
§ Ultrasound Sen: 84% Spec: 75%
§ In cats with elevated fPLI
What is another lipase assay that can be considered in cats with pancreatitis instead of Spec fPL?
1,2-o-dilauryl-rac-glycero-3-glutaric acid-(6’-methylresorufin) ester (DGGR) lipase assay
• 251 cats suspect to have pancreatitis, 31 cats with histopath ○ 1,2-o-dilauryl-rac-glycero-3-glutaric acid-(6'-methylresorufin) ester (DGGR) lipase assay (26U/l) § Sen: 48%, Spec: 63% ○ SpecfPL (>5.3ug/l) § Sen: 57%, Spec: 63%
Both lipase assays agreed, DGGR useful and cost-efficient method compared to Spec fPL
When using contrast enhanced ultrasound, what perfusion parameters can help you differentiate acute pancreatitis from a normal pancreas?
• 6 Beagle with cerulein-induced AP, Contrast Enhanced Ultrasound (controls: saline)
○ Perfusion parameters: Peak intensity and AUC are useful for differentiating acute pancreatitis from a normal pancreas
Can a sedated CT scan be used to diagnosis pancreatitis in dogs?
Yes: • 10 dogs with pancreatitis 3-phase angiographic CT under sedation
○ Enlarged, homogenously to heterogeneously attenutating and contrast-enhancing pancreas with ill-defined borders (all dogs)
○ CT found more features of pancreatitis than US (thrombi 3/10)
○ 3 dogs with heterogeneous contrast enhancement had overall poorer outcome compared to others with homogenous
What is true about contrast enhanced US in natrually occuring pancreatitis in dogs?
• 23 dogs with natural pancreatitis (12 controls) - Contrast Enhanced US, perfusion parameters
○ Can detected changes in pancreatitis - Delayed peak with prolonged hyperechoic enhancement of pancreas
○ Duodenal perfusion changes secondary to pancreatitis (peak intensity and AUC) compared to controls
What is known about adipokines in acute pancreatitis in dogs?
• 25 dogs with pancreatitis (28 controls, same BCS) - Dysregulation of adipokines might be involved in pathogenesis of pancreatitis
○ Leptin, resistin, visfatin, IL-1B, IL-6, IL_10, IL-18 significantly HIGHER in dogs with AP compared to controls
○ Adiponectin significantly lower in AP compared to controls
Significant differences in leptin (higher) and adiponectin (lower) in nonsurvivors compared to survivors = Leptin and adiponectin are likely associated with mortality rate in AP
How is EPI inherited in GSD?
• Test mating (both has EPI) and long term follow-up (12yrs) in 6 GSD puppies
○ Only 2 puppies got pancreatic acinar atrophy
○ NOT congenital dz in GSD - NOT inherited in simple autosomal recessive fashion
What is concerning about the fecal elastase test for EPI in dogs?
• 26 decreased fecal elastase = 23% TLI within or above RR (false + elastase) = HIGH
○ Diagnosis of EPI must be confirmed by other means
False positives also had decreased serum cholecystokinin = Suggesting that decreased stimulation of exocrine pancreatic function by other causes may be resulting in this
What was found in cats with traumatic high rise syndrome?
• 34 cats with traumatic pancreatitis (high-rise syndrome)
○ Serum fPL >5.4ug/L within 12hrs after fall (decreased slowly 48, 72 hrs after fall)
○ Significant agreement btwn fPLI and AUS (if 3 => traumatic pancreatitic: pancreatic enlargement, hypoechoic or heteroechoic pancreatic parenchyma, hyperechoic mesentery, and peritoneal effusion)
In cats with pancreatitis, what factors are associated with a worse prognosis?
○ Dyspnea, hyperkalemia (>5.5) and serum fPLI (>20ug/l) were significant associated with adverse outcome in cats with pancreatitis
In cats with severe pancreatitis that underwent sx, what had the better prognosis?
• 10 cats with severe pancreatitis underwent sx (6 EHBO, 3 pancreatic abscess, 1 pancreatic necrosis)
○ 6/8 survived to d/c
○ Better prognosis with EHBO
What was found in SNAP cPL and Spec cPL in dogs that were presenting with an acute abdomen?
• 38 dogs presented for acute abdomen (later retrospectively acute pancreatitis vs w/o AP)
○ SNAP cPL and Spec cPL may provide “false positive” diagnosis of pancreatitis in up to 40% dogs with acute abdominal dz
○ Good overall agreement btwn SNAP cPL and Spec cPL = BUT 4/38 dogs + SNAP cPL had “normal” Spec cPL
In cats with pancreatitis how can iCa be used?
• 24 cats with pancreatitis (non-fatal vs fatal groups)
○ Hypocalcemia common with pancreatitis 58.3%
○ iCa may be used as prognosis risk factor for clinical course of dz = Poor prognosis if
What is associated with pancreatitis in Mini Schnauzers?
• Association btwn hyperlipdiemia (esp severe >862 mg/dl) and high cPLI in Mini Schnauzers
○ IF severe hyperlipidemia = 4.5X more likely to have serum cPLI consistent with pancreatitis (>200ug/l) than Mini Schnauzers with normal TG
○ 195 Min Schnauzers (normal vs elevated TG)
How has contract enhanced US been used in dogs with pancreatitic tumors?
4 dogs: Contrast -enhanced ultrasound was able to establish different enhancement patterns btwn exocrine (adenocarcinoma = hypoechoic, hypovascular lesions) and endocrine (insulinoma = uniform hypervascular lesion) tumors in dogs
With Spirocercosis in dogs what was noted on TEG?
• 39 dogs with Spriocerca hypercoagubility based on TEG (increased MA, alpha) and decreased antithrombin activity more severe with neoplastic transformation
○ C-reactive protein and Fibrinogen (acute phase proteins) correlated with MA and may be used as adjunctive test to support suspicion of neoplasic transformation
○ MA: Sen 96%, Spec 73% for differentiation of dz state (neoplastic vs not)
Can C-reactive protein be used to differentiate dogs with neoplastic transformation with Spirocercosis?
• 42 dogs with Spirocerca: C-reactive protein CANNOT be used to differentiate btwn benign and malignant transformation
○ C-reactive protein was increased in neoplastic and non-neoplastic compared to controls
○ Decreased in C-reactive protein in dogs with benign lesions once tx started
What hypovitaminosis has been noted in Spirocercosis dogs?
• 51 dogs with Spirocerca: Serum 25(OH) D concentrations were significantly different in neoplastic (lowest Vit D levels) vs non-neoplastic vx controls
○ Dogs had similar appetite scores
○ Hypovitaminosis D may place a role in malignant transformation