Agreement between direct and indirect blood pressure measurements obtained from anesthetized Hispaniolan Amazon parrots.
OBJECTIVE
To determine the level of agreement between direct and indirect blood pressure measurements obtained from healthy Hispaniolan Amazon parrots (Amazona ventralis) anesthetized with isoflurane.


METHODS
Validation study.


METHODS
16 healthy adult Hispaniolan Amazon parrots.


METHODS
Parrots were anesthetized, and a 26-gauge, 19-mm catheter was placed percutaneously in the superficial ulnar artery for direct measurement of systolic, mean, and diastolic arterial pressures. Indirect blood pressure measurements were obtained with a Doppler ultrasonic flow detector and an oscillometric unit. The Bland-Altman method was used to compare direct and indirect blood pressure values.


RESULTS
There was substantial disagreement between direct systolic arterial blood pressure and indirect blood pressure measurements obtained with the Doppler detector from the wing (bias, 24 mm Hg; limits of agreement, -37 to 85 mm Hg) and from the leg (bias, 14 mm Hg; limits of agreement, -14 to 42 mm Hg). Attempts to obtain indirect blood pressure measurements with the oscillometric unit were unsuccessful.


CONCLUSIONS
Results suggested that there was substantial disagreement between indirect blood pressure measurements obtained with a Doppler ultrasonic flow detector in anesthetized Hispaniolan Amazon parrots and directly measured systolic arterial blood pressure.
Acierno
Mark J
MJ
Department of Veterinary Clinical Science, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
da Cunha
Anderson
A
Smith
Julie
J
Tully
Thomas N
TN
Guzman
David Sanchez-Migallon
DS
Serra
Verna
V
Mitchell
Mark A
MA
D046708:Amazona / Q000502:physiology*; D000758:Anesthesia / Q000662:veterinary; D018685:Anesthetics, Inhalation / Q000008:administration & dosage; D000818:Animals; D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination / Q000295:instrumentation / Q000379:methods / Q000592:standards / Q000662:veterinary*; D015924:Blood Pressure Monitors / Q000592:standards / Q000662:veterinary*; D003971:Diastole / Q000502:physiology; D007530:Isoflurane / Q000008:administration & dosage; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013599:Systole / Q000502:physiology
D018685:Anesthetics, Inhalation; D007530:Isoflurane