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Local Anesthetics: Clinical Application as Spinal Anesthesia

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 Anesthesia

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...

Aneurysm IV: Nursing Management

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia

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...

General Anesthesia: Overview

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...

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Related Experiment Video

Updated: May 26, 2026

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Published on: December 10, 2020

[Risk management in spinal anesthesia].

Atsuo Yamashita¹, Mishiya Matsumoto

¹Department of Anesthesiology, Yamaguchi University Graduate School of Medicine, Ube 755-8505.

Masui. the Japanese Journal of Anesthesiology

|December 20, 2011

Summary

Spinal anesthesia offers significant benefits but carries rare, severe risks like cardiac arrest and meningitis. Early detection and treatment of complications are crucial for patient safety and minimizing adverse outcomes.

Area of Science:

Anesthesiology
Neurosurgery
Critical Care Medicine

Context:

Spinal anesthesia, a technique pioneered by Bier over a century ago, is widely adopted globally.
It offers advantages such as a simple procedure, minimal drug volume, profound pain relief, and no systemic side effects.

Purpose:

To review the advantages and potential complications associated with spinal anesthesia.
To emphasize the importance of patient education regarding the risks and the necessity of prompt management of adverse events.

Summary:

Spinal anesthesia is a widely used technique with numerous benefits, including effective analgesia and minimal systemic effects.
However, rare but serious complications such as cardiac arrest, meningitis, and neurological syndromes can occur.
These complications necessitate detailed patient counseling on incidence, severity, and outcomes.

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Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Published on: January 31, 2025

Related Experiment Videos

Last Updated: May 26, 2026

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion

Published on: December 10, 2020

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia

Published on: January 31, 2025

Impact:

Informing patients about spinal anesthesia risks is vital, especially when alternatives exist.
Early prediction, detection, and treatment of complications are essential to mitigate adverse outcomes and improve patient safety.