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Related Concept Videos

Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

552
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...
552
Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia

322
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...
322

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Related Experiment Video

Updated: May 10, 2025

Surgical Technique for Spinal Cord Delivery of Therapies: Demonstration of Procedure in Gottingen Minipigs
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A Methodical Needle-Over-Needle Guidance (NNG) Approach for Spinal Anesthesia Using a "Super Introducer".

Mahesh Desilva1, Jonathan Shen1, Cherry Liu1

  • 1Anesthesiology, Riverside Community Hospital, Riverside, USA.

Cureus
|April 28, 2025
PubMed
Summary
This summary is machine-generated.

A novel needle-over-needle guidance technique using a "Super Introducer" can improve spinal anesthesia success rates. This method may reduce post-dural puncture headache (PDPH) risk in younger, obese patients.

Keywords:
morbid obese spinal anesthesianeedle-over-needle guidancepost dural puncture headachespinal anesthesia (sa)super introducer

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Area of Science:

  • Anesthesiology
  • Neurosurgery
  • Pain Management

Background:

  • Post-dural puncture headache (PDPH) is a common complication following lumbar puncture, particularly in younger patients.
  • Standard spinal anesthesia techniques can be challenging in certain patient populations, increasing complication risks.

Observation:

  • A case report details a needle-over-needle guidance (NNG) technique using a 20G
  • Super Introducer
  • to guide a 25G spinal needle.
  • This technique allows for deeper interspinous ligament engagement and precise dural sac entry.

Findings:

  • The
  • Super Introducer
  • technique offers a faster, cost-effective, and potentially less uncomfortable alternative to standard methods.
  • NNG facilitates successful spinal anesthesia with smaller gauge needles, minimizing risks like needle bending or breakage.

Implications:

  • This technique can enhance the safety and efficacy of spinal anesthesia, especially in younger and morbidly obese patients.
  • It may serve as a valuable tool for reducing PDPH incidence and improving patient outcomes.