Local Anesthetic Hypersensitivity Reactions in Pediatric Patients: Recognition and Management

Fabrizio Franceschini1, Paolo Bottau2, Silvia Caimmi3

  • 1Private Practice in Allergy, 60100 Ancona, Italy.

Discovery Medicine
|January 26, 2024
PubMed

Insights

Local anesthetics (LAs) are generally safe but can rarely cause life-threatening anaphylactic reactions. Prompt diagnosis through history, medical records, and specific tests is vital for preventing future incidents.

Area of Science:

  • Anesthesiology
  • Allergy and Immunology

Background:

  • Local anesthetics (LAs) are widely utilized across medical specialties, including surgery, obstetrics, dentistry, and emergency medicine.
  • Exposure to LAs is common throughout life, starting from childhood.

Purpose of the Study:

  • To highlight the rare but severe risk of anaphylactic reactions to local anesthetics.
  • To emphasize the importance of accurate diagnosis and prevention strategies for adverse events related to local anesthetics.

Main Methods:

  • Review of clinical data and diagnostic approaches for suspected local anesthetic hypersensitivity.
  • Emphasis on comprehensive patient history and medical record review.
  • Inclusion of diagnostic procedures such as skin and challenge tests.

Main Results:

  • Local anesthetics are associated with a low incidence of adverse events when administered correctly.
  • Immediate anaphylactic reactions, though rare, represent a significant and potentially life-threatening complication.
  • Accurate diagnosis relies on a multi-faceted approach combining clinical information and specific testing.

Conclusions:

  • While generally safe, the potential for severe anaphylaxis from local anesthetics necessitates vigilance.
  • Thorough patient evaluation, including detailed history and diagnostic testing, is critical for managing and preventing recurrent reactions.
  • Specialist examination plays a key role in confirming diagnosis and guiding future anesthetic choices.

Related Concept Videos

Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

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...
432
Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

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...
632
Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

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...
414
Local Anesthetics: Common Agents and Their Applications01:23

Local Anesthetics: Common Agents and Their Applications

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...
444
Local Anesthetics: Pharmacokinetics01:13

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...
759
Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia01:30

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...
1.1K