Ketamine for analgosedation in critically ill patients

被引:53
作者
Erstad, Brian L. [1 ]
Patanwala, Asad E. [1 ]
机构
[1] Univ Arizona, Coll Pharm, Dept Pharm Practice & Sci, 1295 N Martin Ave,POB 210202, Tucson, AZ 85721 USA
关键词
Ketamine; Critical care; Critical illness; Hypnotics and sedatives; Analgesics; Pain; CEREBRAL HEMODYNAMICS; DOSE KETAMINE; INFUSION; PAIN; PHARMACOKINETICS; ANESTHESIA; MANAGEMENT; EMERGENCE; FENTANYL; SEDATION;
D O I
10.1016/j.jcrc.2016.05.016
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Purpose: The purpose of this narrative review is to provide practical and useful guidance for clinicians considering the use of intravenous ketamine for its analgosedative properties in adult, critically ill patients. Methods: MEDLINE was searched from inception until January 2016. Articles related to the pharmacological properties of ketamine were retrieved. Information pertaining to pharmacology, pharmacokinetics, dosing regimens, adverse effects, and outcomes was obtained from relevant studies. Results: Although the primary mechanism for ketamine's pharmacological effects is N-methyl-D-aspartate blockade, there are several potential mechanisms of action. It has a very large volume of distribution due to its lipophilicity, which can lead to drug accumulation with sustained infusions. Ketamine has several advantages compared with conventional sedatives such as preserving pharyngeal and laryngeal protective reflexes, lowering airway resistance, increasing lung compliance, and being less likely to produce respiratory depression. It causes sympathetic stimulation, which is also unlike other sedatives and analgesics. There are psychotomimetic effects, which are a concern in terms of delirium. Dosing and monitoring recommendations are provided. Conclusions: Ketamine has a unique pharmacological profile compared with more traditional agents such as opioids, which makes it an appealing alternative agent for analgosedation in the intensive care unit setting. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码:145 / 149
页数:5
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