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Evaluation of the accuracy and precision of the GE Dash 4000 oscillometric monitor for blood pressure measurement in anesthetized female dogs / Determinação da acurácia do monitor oscilométrico GE Dash 4000 na mensuração da pressão arterial em cadelas anestesiadas

Ferronatto, João Victor Barbieri; Monteiro, Eduardo Raposo; Correia, Bárbara Silva; Queiroga, Luciana Branquinho; Becerra, José Ricardo Herrera.
Acta Sci. vet.; 46: Pub. 1615, 2018. graf
Artigo em Português | VETINDEX | ID: vti-738786


Background: Indirect measurement of arterial blood pressure, such as the oscillometric method, is the most commonly used in clinical practice of dogs and cats. This method measures blood pressure values that are estimates of direct (invasive) arterial blood pressure values. Oscillometric devices are easy to use even for non-experienced personnel. However, there is considerable variation in accuracy and precision of blood pressure values measured by different oscillometric monitors. The present study aimed to determine the accuracy and precision of the GE Dash 4000 oscillometric monitor for arterial blood pressure measurement in anesthetized female dogs.Materials, Methods & Results:Sixteen healthy adult female dogs received 0.3 mg/kg morphine as premedication and were anesthetized with propofol and isoflurane. A 22-gauge catheter was introduced into the dorsal pedal artery and connected to a rigid tubular system and a pressure transducer filled with heparinized solution to allow direct (invasive) measurement of systolic (SAP), mean (MAP) and diastolic arterial pressure (DAP). A blood pressure cuff was positioned proximal to the carpus and connected to the oscillometric device (GE-DASH 4000 monitor) in order to obtain indirect measurements of SAP, MAP and DAP. Cuff width was 40% of limb circumference. During anesthesia, invasive arterial blood pressure values were measured and recorded simultaneously with the oscillometric method. The Bland Altman method was used to evaluate agreement between the methods by calculating the bias (invasive - oscillometric) and limits of agreement. Percentages of differences between the methods with an error ≤ 10 mmHg and ≤ 20 mmHg were calculated. Results were compared with the criteria from the American College of Veterinary Internal Medicine (ACVIM) for validation of noninvasive blood pressure methods.[...](AU)
Biblioteca responsável: BR68.1