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31 December 2013 COMPARISON OF NONINVASIVE BLOOD PRESSURE MEASUREMENT TECHNIQUES VIA THE COCCYGEAL ARTERY IN ANESTHETIZED CHEETAHS (ACINONYX JUBATUS)
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Abstract

Two indirect blood pressure measurement techniques, Doppler (DOP) sphygmomanometry and oscillometry, applied at the ventral coccygeal artery were compared with simultaneous direct blood pressure measurements at the dorsal pedal artery in 10 anesthetized, captive cheetahs (Acinonyx jubatus). The DOP method was moderately accurate, with relatively little bias (mean difference 3.8 mmHg) and 88.6% of the DOP systolic arterial pressure measurements being within 10 mmHg of the direct systolic arterial measurement. With the oscillometric (OM) method, 89.2% of the mean arterial pressure measurements were within 10 mmHg of the direct measurement and had the least bias (mean difference 2.3 mmHg), 80.7% of the systolic measurements were within 10 mmHg of the direct measurement and had the second least bias (mean difference 2.3 mmHg), and 59% of the diastolic measurements were within 10 mmHg of the direct measurement and had significant bias (mean difference 7.3 mmHg). However, DOP showed relatively poor precision (SD 11.2 mmHg) compared with OM systolic (SD 8.0 mmHg), diastolic (SD 8.6 mmHg), and mean (SD 5.7 mmHg). Both techniques showed a linear relationship with the direct technique measurements over a wide range of blood pressures. The DOP method tended to underestimate systolic measurements below 160 mmHg and overestimate systolic measurements above 160 mmHg. The OM method tended to underestimate mean pressures below 160 mm Hg, overestimate mean pressures above 160 mmHg, underestimate systolic pressures below 170 mmHg, overestimate systolic pressures above 170 mmHg, and underestimate diastolic pressures throughout the measured blood pressure range. Indirect blood pressure measurement using the ventral coccygeal artery, particularly when using an OM device for mean and systolic arterial pressure, may be useful in the clinical assessment of cheetahs when monitoring trends over time, but caution should be taken when interpreting individual values.

American Association of Zoo Veterinarians
Ryan A. Sadler, Natalie H. Hall, Philip H. Kass, and Scott B. Citino "COMPARISON OF NONINVASIVE BLOOD PRESSURE MEASUREMENT TECHNIQUES VIA THE COCCYGEAL ARTERY IN ANESTHETIZED CHEETAHS (ACINONYX JUBATUS)," Journal of Zoo and Wildlife Medicine 44(4), (31 December 2013). https://doi.org/10.1638/2012-0292R1.1
Received: 28 December 2012; Published: 31 December 2013
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