Related Experiment Video
Updated: Jun 22, 2026

Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents
Published on: June 2, 2015
[Ketamine and preemptive analgesia.].
Caio Márcio Barros de Oliveira1, Rioko Kimiko Sakata, Adriana Machado Issy
1Escola Paulista de Medicina, Universidade Federal de São Paulo.
Ketamine, a medication that blocks NMDA receptors, may help reduce central sensitization from pain. However, its effectiveness for preemptive analgesia requires further confirmation due to varied study methodologies.
Area of Science:
- Neuroscience
- Pharmacology
Context:
- Ketamine's mechanism involves blocking NMDA receptors in the spinal dorsal horn.
- Central sensitization, triggered by nociceptive stimuli, is a key target for pain management.
Purpose:
- To review the pharmacological properties of racemic ketamine and its levogyrous isomer.
- To evaluate the utility of ketamine in preemptive analgesia strategies.
Summary:
- Explores ketamine's action on NMDA receptors and its potential to modulate central sensitization.
- Presents an overview of preemptive analgesia concepts and ketamine's role.
- Discusses experimental and clinical findings regarding ketamine's efficacy in pain management.
Impact:
- Highlights the need for standardized research methods to confirm ketamine's efficacy.
- Provides insights into ketamine's potential as a preemptive analgesic agent.
Related Concept Videos
Parenteral Anesthetics: Overview
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...
Opioid Analgesics: Synthetic and Semisynthetic Opioids
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
Stages of General Anesthesia