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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

560
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...
560
Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia01:30

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

1.5K
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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General Anesthesia: Overview01:24

General Anesthesia: Overview

356
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...
356
Local Anesthetics: Common Agents and Their Applications01:23

Local Anesthetics: Common Agents and Their Applications

645
Local anesthetics (LAs) are commonly used for various applications in medical and dental procedures. Some of the common agents used are cocaine, lidocaine, and bupivacaine.
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...
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Regional Anesthesia in the Field for Trauma Victims.

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Area of Science:

  • Anesthesiology
  • Emergency Medicine
  • Trauma Care

Background:

  • Field anesthesia presents unique challenges for trauma patient care.
  • Regional anesthesia techniques are crucial for managing pain and facilitating procedures in austere environments.
  • Anesthesiologists require specialized knowledge for effective field interventions.

Purpose of the Study:

  • To highlight the importance of regional anesthesia for trauma patients in field settings.
  • To discuss the advantages, risks, and mitigation strategies for field regional anesthesia.
  • To compare ultrasound-guided techniques with traditional methods and outline key considerations.

Main Methods:

  • Review of current literature on regional anesthesia in field and trauma care.
  • Analysis of benefits and risks associated with various regional anesthesia techniques.
  • Comparison of ultrasound-guided versus landmark-based nerve blockade.
  • Identification of specific indications and contraindications for field anesthesia.

Main Results:

  • Regional anesthesia provides effective pain management and procedural support for trauma patients in the field.
  • Ultrasound guidance enhances accuracy and safety compared to landmark techniques.
  • Careful patient selection and risk assessment are critical for successful field anesthesia.
  • Specific regional techniques offer tailored solutions for diverse field scenarios.

Conclusions:

  • Regional anesthesia is a vital tool for anesthesiologists managing trauma patients in field environments.
  • Adoption of modern ultrasound technology improves the safety and efficacy of field regional anesthesia.
  • Understanding unique indications and risks is paramount for anesthesiologists operating outside traditional settings.