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Related Concept Videos

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia

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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...
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Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

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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...
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Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

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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...
1.0K
General Anesthesia: Overview01:24

General Anesthesia: Overview

1.1K
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...
1.1K
Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

1.0K
While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
1.0K
Local Anesthetics: Pharmacokinetics01:13

Local Anesthetics: Pharmacokinetics

1.5K
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...
1.5K

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Improved residents' knowledge after an advanced regional anesthesia education program.

Vicente Garcia-Tomas, Deborah Schwengel, Jean-Pierre P Ouanes

    Middle East Journal of Anaesthesiology
    |July 11, 2014
    PubMed
    Summary

    A structured regional anesthesia teaching program significantly improved anesthesia residents' knowledge and skills. The program effectively enhanced confidence in performing peripheral nerve blocks, as demonstrated by improved test scores.

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    Area of Science:

    • Medical Education
    • Anesthesiology
    • Regional Anesthesia

    Background:

    • Anesthesia residents often lack confidence in peripheral nerve blocks despite proficiency in neuraxial anesthesia.
    • A structured regional anesthesia teaching program was implemented to address this knowledge gap.
    • The study was conducted at a major academic medical center.

    Purpose of the Study:

    • To evaluate the effectiveness of a comprehensive, structured regional anesthesia teaching program.
    • To improve anesthesia residents' competence in peripheral nerve blocks.
    • To assess the impact of the program on resident knowledge and clinical skills.

    Main Methods:

    • Residents participated in protected didactic sessions and hands-on workshops (cadaver, ultrasound, nerve stimulator, surface anatomy).
    • A curriculum included simulator sessions for regional anesthesia complications.
    • Knowledge and skills were assessed using multiple-choice questions (MCQ) and observed standardized clinical examinations (OSCE) pre- and post-program.

    Main Results:

    • Significant improvements (P < 0.05) were observed in post-test MCQ and OSCE scores across all clinical anesthesia years.
    • All three sections of the OSCE demonstrated significant post-test score improvements (P < 0.05).
    • The program effectively enhanced resident performance in regional anesthesia assessments.

    Conclusions:

    • The developed regional anesthesia teaching program proved effective in enhancing resident knowledge.
    • The structured curriculum successfully improved residents' understanding and application of regional anesthesia techniques.
    • The program is a valuable model for improving anesthesia resident education in peripheral nerve blocks.