Closed-loop control of anesthetic state in nonhuman primates.
Closed-loop control of anesthetic state in nonhuman primates.
复制标题
非人灵长类动物麻醉状态的闭环控制。
DOI:
10.1093/pnasnexus/pgad293
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发表时间:
2023-10
期刊:
影响因子:
--
通讯作者:
Brown, Emery N.
中科院分区:
文献类型:
--
作者:
Chakravarty, Sourish;Donoghue, Jacob;Waite, Ayan S.;Mahnke, Meredith;Garwood, Indie C.;Gallo, Sebastian;Miller, Earl K.;Brown, Emery N.
Research in human volunteers and surgical patients has shown that unconsciousness under general anesthesia can be reliably tracked using real-time electroencephalogram processing. Hence, a closed-loop anesthesia delivery (CLAD) system that maintains precisely specified levels of unconsciousness is feasible and would greatly aid intraoperative patient management. The US Federal Drug Administration has approved no CLAD system for human use due partly to a lack of testing in appropriate animal models. To address this key roadblock, we implement a nonhuman primate (NHP) CLAD system that controls the level of unconsciousness using the anesthetic propofol. The key system components are a local field potential (LFP) recording system; propofol pharmacokinetics and pharmacodynamic models; the control variable (LFP power between 20 and 30 Hz), a programmable infusion system and a linear quadratic integral controller. Our CLAD system accurately controlled the level of unconsciousness along two different 125-min dynamic target trajectories for 18 h and 45 min in nine experiments in two NHPs. System performance measures were comparable or superior to those in previous CLAD reports. We demonstrate that an NHP CLAD system can reliably and accurately control in real-time unconsciousness maintained by anesthesia. Our findings establish critical steps for CLAD systems’ design and testing prior to human testing.
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DOI:
10.1056/nejmra0808281
发表时间:
2010-12-30
期刊:
The New England journal of medicine
影响因子:
--
作者:
Brown EN;Lydic R;Schiff ND
通讯作者:
Schiff ND
影响因子:
8.8
作者:
Absalom, AR;Sutcliffe, N;Kenny, GN
通讯作者:
Kenny, GN
影响因子:
9.8
作者:
Guay, Christian S.;Hight, Darren;Palanca, Ben Julian A.
通讯作者:
Palanca, Ben Julian A.
影响因子:
5.3
作者:
Ishizawa, Yumiko;Ahmed, Omar J.;Eskandar, Emad N.
通讯作者:
Eskandar, Emad N.
影响因子:
5.7
作者:
Brown EN;Pavone KJ;Naranjo M
通讯作者:
Naranjo M