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KMID : 1094020150320040380
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Journal of Veterinary Clinics
2015 Volume.32 No. 4 p.380 ~ p.384
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Capnographic Monitoring of End-Tidal Partial Pressure of Carbon Dioxide in Anesthetized Cinereous vultures (Aegypius monachus)
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Park Won-Kyu
Seok Seong-Hoon
Park Se-Jin
Lee Seung-Yong
Kim Young-Ki
Hwang Jae-Min
Jeong Dong-Hyuk
Yeon Seong-Chan
Lee Hee-Chun
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Abstract
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The relationships between end-tidal partial pressure of carbon dioxide (PETCO2) and arterial partial pressure of carbon dioxide (PaCO2), and between PETCO2 and blood pH in isoflurane-anesthetized cinereous vultures were evaluated. Nine cinereous vultures (weighing 7.3-9.5 kg) were anesthetized via mask with isoflurane, intubated, and connected to a mechanical ventilator. By mechanical ventilator, respiratory rate was altered to achieve a PETCO2 randomly selected among 30 to 35 mmHg. PaCO2 and blood pH were determined in serial arterial samples and compared with concurrent PETCO2 measured with a sidestream capnography. Thirty six samples, nine cinereous vultures were tested 4 times each, were used to determine correlations coefficients between PaCO2 and PETCO2, and between PETCO2 and blood pH. Strong correlations were observed between PaCO2 and PETCO2 (r = 0.951, P = 0.000, y = 1.679x ? 30.236, R2 = 0.905) as well as between PETCO2 and blood pH (r = ?0.728, P = 0.000, y = ?0.024x + 8.389, R2 = 0.530) with Pearson’s correlation coefficient and simple linear regression. These results suggest that the capnography used provided a sufficiently accurate estimation of PaCO2 and blood pH. Thus, the monitoring of PETCO2 can be useful method to prevent hypoventilation for cinereous vultures receiving mechanical ventilation.
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KEYWORD
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cinereous vulture, capnography, PETCO2, isoflurane, anesthesia
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