PubMed · 5447586
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N B Slonim, N K Estridge. 1970. The acid-base surface. A 3-dimensional visual model.. https://pubmed.ncbi.nlm.nih.gov/5447586/
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OBJECTIVE: To characterize respiratory function and treatment in dogs with findings compatible with those of human adult respiratory distress syndrome (ARDS) and to evaluate the application in dogs of clinical for diagnosis of ARDS. DESIGN: Retrospective review of medical records. ANIMALS: 19 dogs with acute respiratory distress syndrome. RESULTS: Arterial blood pH was 7.30 +/- 0.59 (mean +/- SD). Nine dogs had metabolic acidosis. In nonmechanically ventilated dogs, PaCO2 was 15.0 to 54.9 mm of Hg. Respiratory acidosis developed in 2 mechanically ventilated dogs. Hypoxemia was observed in 4 of 5 dogs breathing room air. In 4 mechanically ventilated dogs, oxygenation was inadequate, despite use of > 60% inspired O2 and positive end-expiratory pressure in 3 dogs. Alveolar-to-arterial oxygen tension gradients were widened in 4 dogs breathing room air and in 6 dogs ventilated with 100% O2. Ten dogs were mechanically ventilated; ventilatory rate was 18 to 60 breaths/min. Tidal volume was 12 +/- 3.8 ml/kg of body weight in 4 dogs, minute ventilation > 400 ml/kg/min in 2 dogs, and peak airway pressures > 25 cm of H2O in 6 dogs. Positive end-expiratory pressure was used in 8 dogs. Pneumothorax was detected in 5 ventilated dogs. Human clinical criteria for diagnosis of ARDS were fulfilled in 7 dogs. Fluid treatment consisted of IV crystalloids and synthetic colloids. Drugs most often administered were antibiotics and loop diuretics. CLINICAL IMPLICATIONS: Human clinical criteria for identification of ARDS may be helpful in diagnosis of acute respiratory distress syndrome in dogs.
Forestomach acidosis was diagnosed in 2 llamas and 4 alpacas. All were young, group-housed, sexually intact males. Clinical signs included forestomach atony, lethargy, ataxia, diarrhea, and tachycardia. Forestomach distention was observed in only 1 llama. Clinicopathologic abnormalities included low forestomach fluid pH, hyperchloremia, hypokalemia, and metabolic acidosis. Although camelids differ from domestic ruminants in typical management practices and behavioral, anatomic, and physiologic characteristics, they are, nonetheless, susceptible to forestomach acidosis. Gastric fluid analysis was essential for an accurate diagnosis. Four of 6 camelids recovered after PO and IV treatment with alkalinizing agents and fluids, antibiotics, and thiamine.
OBJECTIVE: To assess factors associated with development of hospital-acquired acute renal failure (HARF) and to determine outcome of and prognostic indicators for dogs with HARF. DESIGN: Retrospective case series. ANIMALS: 29 dogs. RESULTS: The most common inciting causes for developments of HARF were exposure to a nephrotoxicant and advanced age. Mortality was 62%, and factors that contributed to mortality were age and initial urine output. Dogs > or = 7 years old and dogs that were initially oliguric had an odds ratio of mortality of 8.8 and 20, respectively. The effect of preexisting heart disease on mortality approached significance (P = 0.053). The magnitude of azotemia at the time of diagnosis was not related to the chance for survival. Dogs that died had a significantly higher initial anion gap and serum phosphorus concentration than did dogs that survived. We did not detect a relationship between cause of HARF and outcome (survived vs died or euthanatized). CLINICAL IMPLICATIONS: In most cases, HARF is associated with a poor outcome. Older dogs may be at increased risk for development of HARF, and once HARF has developed, have a greater chance of dying. Prognosis can not be determined on the magnitude of azotemia at the time of diagnosis or on the inciting cause of HARF.