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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...

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...

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

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...

Local Anesthetics: Differential Sensitivity of Nerve Fibers

Local Anesthetics: Differential Sensitivity of Nerve Fibers

Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...

Local Anesthetics: Pharmacokinetics

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...

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Microscopic Varicocelectomy under Local Anesthesia as the Treatment of Varicocele

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Regional Anesthesia for Penile Inversion Vaginoplasties.

Jevaughn S Davis¹, Ayomide Ogunsakin², Boladale Ashiru³

¹Department of Anesthesiology and Critical Care, George Washington School of Medicine and Health Sciences, Washington, DC, USA. jevdavis@mfa.gwu.edu.

Current Pain and Headache Reports

|May 22, 2026

Summary

This summary is machine-generated.

Regional anesthesia techniques are crucial for managing post-operative pain in penile inversion vaginoplasty. Evidence suggests these methods reduce opioid use and improve patient recovery, enhancing gender-affirming care outcomes.

Keywords:

Analgesia Gender Affirming Care Pain Management Penile Inversion Regional Anesthesia Vaginoplasty

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Area of Science:

Anesthesiology
Gender-affirming surgery
Pain management

Background:

Penile inversion vaginoplasty is a complex gender-affirming surgery requiring effective postoperative pain control.
Inadequate pain management negatively impacts patient satisfaction, hospital stay, and recovery.
Multimodal analgesia is standard, including opioids, NSAIDs, and local anesthetics.

Purpose of the Study:

To review and synthesize current evidence on regional anesthesia for postoperative pain in penile inversion vaginoplasty.
To clarify the role of regional anesthesia in optimizing pain control and recovery.
To consolidate findings on reducing opioid exposure in this patient population.

Main Methods:

Literature review of regional anesthesia techniques for penile inversion vaginoplasty.
Synthesis of evidence on neuraxial anesthesia and peripheral nerve blocks.
Analysis of impact on pain, opioid consumption, and recovery.

Main Results:

Regional anesthesia is a key component of Enhanced Recovery After Surgery (ERAS) protocols.
Evidence shows reduced opioid consumption and adverse effects with regional anesthesia.
These techniques contribute to improved patient-centered outcomes and recovery.

Conclusions:

Regional anesthesia is vital for multimodal pain management in penile inversion vaginoplasty.
Implementing regional anesthesia can significantly decrease opioid reliance and side effects.
Optimizing pain control with regional anesthesia improves overall patient recovery and satisfaction.