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  • Title: Prognostic indicators at presentation for canine parvoviral enteritis: 322 cases (2001-2018).
    Author: Chalifoux NV, Parker SE, Cosford KL.
    Journal: J Vet Emerg Crit Care (San Antonio); 2021 May; 31(3):402-413. PubMed ID: 33792158.
    Abstract:
    OBJECTIVE: To evaluate clinicopathological prognostic indicators associated with survival based on hematology and serum biochemistry profile findings at presentation of dogs with canine parvoviral enteritis (CPE). Secondary objectives were to describe the signalment, history, physical examination findings, and progression of disease while in hospital and correlate them to survival. DESIGN: Retrospective study from medical records of dogs diagnosed with CPE between 2001 and 2018. SETTING: University teaching hospital. ANIMALS: Three hundred twenty-two dogs diagnosed with CPE that received in-hospital treatment. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Of 322 hospitalized dogs, 294 dogs (91%) survived infection with a median hospitalization time of 79 hours. Multivariable analysis showed that glucose (P = 0.04), total magnesium (P = 0.011), and the dichotomized variable of a low HCT (P = 0.033) on presentation were significantly associated with survival. For every 1 mmol/L (18 mg/dL) decrease in glucose concentration, cases had 1.85 lower odds of survival. For every 0.1 mmol/L (0.2 mEq/L) increase in total magnesium concentration, cases had 2.50 lower odds of survival. Cases with a low HCT had 10.69 lower odds of survival. On univariable analyses, non-survivors had a lower median body weight (P = 0.006) and presented more commonly for diarrhea (P = 0.015). At least 1 episode of diarrhea (P = 0.003) and hematochezia or melena (P < 0.001) in hospital were negatively associated with outcome, in addition to the persistence of diarrhea (P = 0.026) and hyporexia (P = 0.018) in hospital for 5 to 6 days. CONCLUSIONS: Survival rates of 91% were achieved with in-hospital treatment in this cohort of dogs. Negative biochemical prognostic indicators affecting survival include a low HCT, decreased blood glucose concentrations, and increased total serum magnesium concentrations at presentation.
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