Gastrointestinal hemodynamics in dogs with nonfood induced atopic dermatitis.

Abstract

BACKGROUND: Canine atopic dermatitis can be a result of exposure to aeroallergens or trophallergens. Hemodynamic alterations occur in dogs with food hypersensitivity. HYPOTHESIS/OBJECTIVES: To evaluate if hemodynamic alterations occur in dogs with NFICAD with lowered resistance to diastolic flow at fasting, after feeding, or both. ANIMALS: Ten healthy dogs and 22 dogs with NFICAD were included from the hospital population. METHODS: Blinded prospective study. Peak systolic velocity (PSV), end diastolic velocity (EDV), mean velocity (MV), pulsatility index (PI), resistive index (RI) and PSV/EDV ratio were measured at fasting for both arteries (cranial mesenteric artery [CMA], celiac artery [CA]) and at 40 minutes after feeding in CMA and at 60 minutes in CA. The results were analyzed statistically with a mixed model. RESULTS: There was no difference detected between groups of dogs for any variable except EDV during fasting (P = .01). CONCLUSIONS AND CLINICAL IMPORTANCE: There is no decrease in resistance in NFICAD to diastolic flow. This observation could be explained by the absence intestinal inflammation in NFICAD.