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Related Concept Videos

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia

Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...
Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
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...
General Anesthesia: Overview01:24

General Anesthesia: Overview

Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
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: Pharmacokinetics01:13

Local Anesthetics: Pharmacokinetics

The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...
Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia01:30

Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia

Depending on the target organ, local anesthetics (LAs) can be administered via various routes. In surface anesthesia, LAs are applied directly to the surface of the skin or mucous membranes. It is widely used for topical skin numbing before venipuncture or minor surgical procedures. Commonly used surface local anesthetics are lidocaine or benzocaine sprays or creams. Surface anesthesia occurs within 5 minutes and lasts for about 60 minutes. One of the main disadvantages of topical anesthesia is...

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Related Experiment Video

Updated: May 26, 2026

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
03:14

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Published on: January 31, 2025

Does regional anaesthesia really improve outcome?

S C Kettner1, H Willschke, P Marhofer

  • 1Department of Anaesthesia, Intensive Care Medicine and Pain Therapy, Medical University of Vienna, A-1090 Vienna, Austria.

British Journal of Anaesthesia
|December 14, 2011
PubMed
Summary
This summary is machine-generated.

Regional anaesthesia provides better pain relief than opioids, significantly reducing postoperative pain. Advancements offer advantages for patients of all ages, though mortality benefits remain unclear.

Related Experiment Videos

Last Updated: May 26, 2026

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
03:14

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Published on: January 31, 2025

Area of Science:

  • Anesthesiology
  • Surgical Outcomes
  • Pain Management

Background:

  • Ongoing debate exists regarding the benefits of regional anaesthesia compared to general anaesthesia.
  • While mortality reduction remains uncertain, regional anaesthesia offers advantages in pain management.
  • Recent technical advancements enhance the potential benefits of regional anaesthesia across diverse patient populations.

Purpose of the Study:

  • To evaluate the benefits of regional anaesthesia over general anaesthesia.
  • To assess the impact of regional anaesthesia on postoperative pain and analgesia.
  • To explore the advantages of recent technical developments in regional anaesthesia.

Main Methods:

  • Meta-analysis interpretation
  • Review of studies focusing on specific surgical and postoperative outcomes
  • Analysis of technical advancements in regional anaesthesia

Main Results:

  • Regional anaesthesia demonstrates superior analgesia compared to opioid-based methods.
  • Significant reduction in postoperative pain is achievable with regional anaesthesia.
  • Potential advantages identified for various patient age groups due to technical improvements.

Conclusions:

  • Regional anaesthesia offers significant benefits for postoperative pain management.
  • Technical advancements are expanding the utility and advantages of regional anaesthesia.
  • Further research may clarify mortality benefits, but pain reduction is a confirmed advantage.