@inproceedings{a95beaad31494bf7bb854fa893e9fc3f,
title = "Effect of isoflurane on aortic impedance in mice",
abstract = "Isoflurane is the most commonly used anesthetic in mice. We studied the effect of low and high levels of isoflurane (also a potent coronary vasodilator) on aortic impedance in mice. Aortic impedance was determined using pressure and flow velocity signals at baseline (B, pentobarbital anesthesia), low (Isol, 1%), and high (Iso2.5, 2.5%) levels of isoflurane. Significant differences were observed in peak and mean flow velocities, systolic, diastolic, mean and pulse pressures at B and Iso2.5. However in impedance indices only peripheral vascular resistance was significantly different. No changes were observed in the harmonic components that represent pulsatile characteristics of the aorta. Peak left ventricular (LV) pressure was significantly lower at Iso2.5 when compared to B, but ±dP/dt and τ (time constant of LV relaxation) did not change significantly indicating that LV contractility was unaffected. These results show that various levels of isoflurane cause significant changes in vascular hemodynamics and care must be taken to minimize these differences when using isoflurane as an anesthesia.",
keywords = "Anesthesia, Aortic flow velocity, Aortic impedance, Aortic pressure, LV contractility",
author = "Reddy, {Anilkumar K.} and Khodidad Namiranian and Lloyd, {Eric E.} and Bryan, {Robert M.} and George Taffet and Hartley, {Craig J.}",
note = "Copyright: Copyright 2018 Elsevier B.V., All rights reserved.; 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 ; Conference date: 02-09-2009 Through 06-09-2009",
year = "2009",
doi = "10.1109/IEMBS.2009.5334387",
language = "English (US)",
isbn = "9781424432967",
series = "Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1104--1105",
booktitle = "Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society",
address = "United States",
}