Related Experiment Video
Updated: Jun 20, 2026

In vivo Calcium Imaging in Mouse Inferior Olive
Published on: June 10, 2021
Clinical uses of low-dose ketamine in patients undergoing surgery
M Berti1, M Baciarello, R Troglio
1Department of Anesthesiology, Critical Care and Pain Medicine, University Hospital of Parma, Parma, Italy. mberti@ao.pr.it
Abstract:
Ketamine acts mainly as a N-methyl-D-aspartate receptor (NMDAr) antagonist. Originally developed as a general anesthetic, it is now seldom employed as such in richer countries due to the relatively high risk of psychotomimetic adverse effects. Recently, low-dose regimens in the range of 0.25-0.5 mg/kg as an initial bolus followed by 50-500 kappag/kg/h have been proposed as an adjuvant for postoperative analgesia and for the reduction of exogenous opioid-induced hyperalgesia. In this review, we examine the evidence for clinical usefulness of perioperative ketamine infusion and its role in the context of general and/or regional anesthesia.
Related Concept Videos
Parenteral Anesthetics: Overview
Stages of General Anesthesia
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Local Anesthetics: Clinical Application as Spinal Anesthesia
Local Anesthetics: Common Agents and Their Applications
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
Local Anesthetics: Clinical Application as Epidural Anesthesia
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
