Increased concentrations of Serum amyloid A in dogs with sepsis caused by pyometra (original) (raw)
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Evaluation of Acute Phase Proteins, Some Cytokines and Hemostatic Parameters in Dogs with Sepsis
Kafkas Universitesi Veteriner Fakultesi Dergisi, 2015
The aim of this study was to evaluate the alterations in acute phase proteins, cytokines and hemostatic parameters in dogs with sepsis and to determine the importance of these parameters in diagnosis of the sepsis. Thirty dogs with sepsis and 9 healthy dogs were used in this study. Anorexia, depression, lethargy, hyperthermia, tachycardia, tachypnea, congestion in the mucosal membranes, prolonged capillary refill time, and leukocytosis or leucopenia were identified in the dogs with sepsis. The serum interleukin-1ß (IL-1ß), tumor necrosis factor α (TNF-α), interferon γ (INF-γ), C-reactive protein (CRP), serum amyloid A (SAA), prothrombin time (PT), activated partial thromboplastin time (aPTT), antithrombin III (AT III), fibrinogen, protein C (PC), and D-dimer levels were measured in all dogs. We found that the serum IL-1ß, TNF-α, INF-γ, CRP and SAA concentrations were significantly elevated in dogs with sepsis as compared with healthy controls. In addition, the plasma PT and APTT levels were notably prolonged, the plasma fibrinogen, D-dimers and protein C concentrations were significantly increased. However, the antithrombin III activity was significantly decreased in the dogs with sepsis. In conclusion, the results of this study indicate that the SAA, IL-1ß and TNF-α parameters play important roles in the inflammatory process in dogs with sepsis. The hemostatic abnormalities observed in dogs with sepsis may be due to the development of disseminated intravascular coagulation (DIC).
Frontiers in veterinary science, 2024
Introduction: Sepsis in people is defined as a life-threatening organ dysfunction (OD) caused by a dysregulated host response to infection. In veterinary medicine, sepsis is still defined by the presence of systemic inflammation plus the evidence of infection. Based on recent veterinary studies, multiorgan dysfunction syndrome (MODS) has been associated with a worse outcome in sepsis. Thus, the screening for OD is warranted to identify the most critically ill patients. The aim of this study was to investigate the diagnostic value of newonset OD for the prediction of sepsis and outcome in a population of critically ill dogs with systemic inflammation. Materials and methods: Dogs admitted to the Emergency Room and/or the Intensive Care Unit with systemic inflammation, defined by a serum C-reactive protein concentration > 1.6 mg/dL, were retrospectively included. Enrolled dogs were categorized according to the presence of sepsis or non-infectious systemic inflammation. The presence of newly diagnosed OD was assessed based on criteria adapted from human literature and previously reported canine criteria. Results: 275 dogs were included: 128 had sepsis and 147 had non-infectious systemic inflammation. The frequency of new-onset OD was not different between these groups. Only the presence of fluid-refractory hypotension was significantly associated with a diagnosis of sepsis (OR 10.51, 3.08-35.94; p < 0.0001). The frequency of at least two ODs was significantly higher in nonsurvivors compared to survivors, according to both the human and the veterinary criteria considered for the study (p = 0.0001 and p = 0.0004, respectively). Specifically, the presence of acute kidney injury, stupor or coma, prolonged Prothrombin Time and decreased Base Excess were associated with a higher risk of death in the multivariate binary logistic regression. Discussion: In this population of critically ill dogs with systemic inflammation, the detection of newly diagnosed ODs was not able to predict sepsis diagnosis, other than the presence of fluid-refractory hypotension. However, given the strong prognostic significance associated with ODs, our results support the early screening for ODs in any severe inflammatory critical care condition to identify high-risk patients and optimize their management.
Serial Evaluation of Protein C and Antithrombin in Dogs with Sepsis
Journal of Veterinary Internal Medicine, 2008
Background: Protein C (PC) and antithrombin (AT) activities are decreased in humans with severe sepsis, and persistent changes are associated with decreased survival. In dogs with sepsis, PC and AT have been shown to be decreased at the time of diagnosis.
Journal of Veterinary Emergency and Critical Care, 2009
Background-There is a high mortality rate in patients with systemic inflammatory response syndrome (SIRS) or sepsis. Therefore, an early diagnosis and prognostic assessment is important for optimal therapeutic intervention. The objective of the study was to evaluate if baseline values and changes in serum C-reactive protein (CRP) might predict survival in dogs with SIRS and sepsis.
Scientific Reports, 2020
The aetiology of septic acute kidney injury (AKI) is not completely elucidated. Early identification of AKI in septic patients is considered to improve survival rate since it allows rapid treatment onset. We evaluated clinical, haematological, urinary, B-mode, spectral Doppler, and contrast-enhanced ultrasound variables in 20 bitches with pyometra as sepsis models and 12 healthy controls. All animals with pyometra presented some degree of renal damage on histological examination; however, sequential organ failure assessment (SOFA) classified only 40% cases with sepsis. AKI derived from systemic infection was identified in 57% of cases with hypoperfusion and in 22% with inflammation, being an affection of multifactorial origin. Among the evaluated parameters, urinary protein/creatinine ratio >0.15, serum albumin <2.94 mg/dL, time-averaged minimum velocity <21.5 cm/s, renal length/aorta diameter ratio >5.93, pulsatility index >1.53, haematocrit <45%, time-averaged ma...
Acute phase proteins in dogs and cats: current knowledge and future perspectives
Veterinary Clinical Pathology, 2005
Abstract The acute phase response is a nonspecific inflammatory reaction of the host that occurs shortly after any tissue injury. The response includes changes in the concentration of plasma proteins called acute phase proteins (APPs), some of which decrease in concentration (negative APPs), such as albumin or transferrin, and others of which increase in concentration (positive APPs), such as C-reactive protein, serum amyloid A, haptoglobin, alpha-1-acid glycoprotein, and ceruloplasmin. Most positive APPs are glycoproteins synthesized mainly by hepatocytes upon stimulation by proinflammatory cytokines and released into the bloodstream. The acute phase response and clinical application of monitoring APPs in dogs and cats are reviewed in this article, including biochemical characteristics, assays developed for each individual APP, and preanalytic and analytic factors influencing APP results that should be taken into account for proper and adequate clinical interpretation. In addition, the diagnostic use of APPs and their possible application in monitoring treatment, which can be considered one of the most interesting and promising practical applications of these proteins, will be discussed. Finally, challenges and future developments of APPs in dogs and cats will be considered, because it is expected that new and cheaper automated assays for determination of the main APPs in small animals will contribute to a wider use of these proteins as biomarkers of infection and inflammatory lesions.