The measurement of central venous pressure (CVP) will provide objective information about intravascular blood volume. Limitations exist with direct and indirect methods of measuring CVP; however, the purpose of this study was to determine if such factors as catheter size, patient position, or measurements taken with either a water manometer or a strain-gauge transducer would affect the accuracy of CVP measurements. The study population consisted of six adult, mixed-breed dogs. Catheter sizes evaluated were 16- and 19-gauge. Patient positions evaluated were right and left lateral recumbencies. Right atrial pressures (RAPs) were used as the reference standards for CVP measurements. Measurements of RAP and CVP were obtained with a water manometer and a strain-gauge transducer. No significant differences were observed in measured CVPs for the effects of catheter size and right versus left lateral recumbency. A 2.7-mmHg difference in water manometry was demonstrated when compared to strain-gauge transducer measurements. Also, strain-gauge transducer measurements had less precision compared to water manometer measurements.
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1 January 1997
Articles|
January 01 1997
Experimental evaluation of central venous pressure monitoring in the dog
J Am Anim Hosp Assoc (1997) 33 (1): 77–82.
Citation
RE Oakley, B Olivier, GE Eyster, JG Hauptman; Experimental evaluation of central venous pressure monitoring in the dog. J Am Anim Hosp Assoc 1 January 1997; 33 (1): 77–82. doi: https://doi.org/10.5326/15473317-33-1-77
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