Peer-reviewed veterinary case report
Shock index values in healthy dogs and emergency shock cases
By Porter, Adam E et al.·Published in Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)·2013·Department of Clinical Sciences, United States·View original on PubMed →
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Original publication title: Evaluation of the shock index in dogs presenting as emergencies.
- Species:
- dog
Plain-English summary
A group of dogs was evaluated in an emergency room to see how their heart rate and blood pressure could indicate if they were in shock. The study found that dogs in shock had a significantly higher shock index (a measure of heart rate compared to blood pressure) than healthy dogs or those not in shock. This suggests that measuring the shock index can help veterinarians quickly assess whether a dog is in a critical condition. The findings could improve how emergency cases are handled, potentially leading to faster and more effective treatment for dogs in distress.
People also search for: dog shock symptoms · emergency dog care · how to tell if my dog is in shock · dog heart rate and blood pressure · signs of dog emergency
Abstract
OBJECTIVES: To (1) determine a reference interval for shock index (SI) [defined as heart rate (HR)/systolic blood pressure (SBP)], in a group of healthy dogs, and (2) compare SI in healthy dogs with dogs presenting to the emergency room (ER) deemed to be in or not in a state of shock. DESIGN: Prospective study. ANIMALS: Sixty-eight clinically normal dogs, 18 dogs that were presented to the ER deemed to be in shock and 19 dogs presenting to the ER not deemed to be in shock. SETTING: University teaching hospital. INTERVENTIONS: Peripheral or central venous blood sampling. MEASUREMENTS AND MAIN RESULTS: Heart rate and SBP were recorded on simulated presentation (healthy dogs), and emergency presentations for both dogs deemed to be in shock and dogs not deemed in shock. Dogs in shock had a median SI of 1.37 (0.87-3.13), which was significantly higher than both other groups; dogs not deemed in shock had median SI 0.73 (0.56-1.20), P < 0.0001 and healthy dogs had median SI 0.78 (0.37-1.30) P < 0.0001), respectively. Receiver operator characteristic curve analysis suggested a SI cut-off of 1.0, yielding an area under the receiver operator characteristic (AUROC) of 0.89 (Specificity (Sp) 89, Sensitivity (Sn) 90) when comparing dogs deemed in shock with healthy dogs, and 0.92 (Sp 95, Sn 89) when comparing dogs in shock with to dogs not deemed in shock. CONCLUSIONS: The SI is an easy and noninvasive patient parameter that is higher in dogs that are deemed to be in shock than both healthy dogs and dogs presented as emergencies but not deemed to be in a state of shock. The measurement of SI may have some benefit in clinical assessment of emergency patients.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23855723/