Influence of Isoflurane Anesthesia on Pulsatility Index and Peak Systolic Velocity of Basilar Artery in Dogs by Doppler Ultrasonography.
- Author:
Ki Changi LEE
1
;
Min Cheol CHOI
;
Jung Hee YOON
Author Information
1. College of Veterinary Medicine, Seoul National University Seoul 151-742, Korea. mcchoi@snu.ac.kr
- Publication Type:Original Article
- Keywords:
Dog;
Doppler ultrasonography;
isoflurane;
peak systolic velocity;
pulsatility index
- MeSH:
Anesthetics, Inhalation/*pharmacology;
Animals;
Basilar Artery/drug effects/*ultrasonography;
Blood Flow Velocity/drug effects/veterinary;
Blood Pressure/drug effects;
Cerebrovascular Circulation/drug effects;
Dogs/*physiology;
Female;
Isoflurane/*pharmacology;
Male;
Pulsatile Flow/drug effects;
Ultrasonography, Doppler, Duplex/veterinary
- From:Journal of Veterinary Science
2002;3(3):203-205
- CountryRepublic of Korea
- Language:English
-
Abstract:
This study was performed to examine the influence of isoflurane anesthesia on the pulsatility index (PI) and the peak systolic velocity (PSV) of the blood flow in the basilar artery of dogs by duplex Doppler ultrasonography. Twelve healthy dogs were used to measure the PI and the PSV under the conscious state and isoflurane anesthesia. The pulsatility index (PI) and the peak systolic velocity (PSV) in the basilar artery were measured five times with random intervals. The blood pressure was measured. The PI and PSV values in dogs under isoflurane anesthesia were 1.37 +/- 0.32 and 72 +/- 19 cm/sec, whereas those in the conscious dogs were 1.37 +/- 0.13 and 81 +/- 16 cm/sec, respectively. The indirect mean arterial systolic and diastolic pressures under isoflurane anesthesia were 107 and 51 mmHg, whereas those in the conscious dogs were 133 and 74 mmHg. Though the isoflurane is generally known to induce hypotension, there were no significant differences in the PI and PSV between the isoflurane-anesthetized and the conscious dogs. In conclusion, the isoflurane anesthesia did not influence the PI and PSV in the basilar artery of dogs.
