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Related Experiment Videos

The tumescent technique. Anesthesia and modified liposuction technique.

J A Klein1

  • 1Department of Dermatology, University of California, Irvine.

Dermatologic Clinics
|July 1, 1990
PubMed
Summary

The tumescent technique for liposuction uses dilute lidocaine and epinephrine for safe fat removal with minimal blood loss. This method ensures prolonged local anesthesia and reduces the risk of lidocaine toxicity.

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Area of Science:

  • Plastic Surgery
  • Dermatology
  • Anesthesiology

Background:

  • Liposuction is a common procedure for fat removal.
  • The tumescent technique involves injecting large volumes of dilute local anesthetic.
  • Ensuring patient safety during liposuction is paramount.

Purpose of the Study:

  • To evaluate the safety and efficacy of the tumescent technique in liposuction.
  • To determine the maximal safe dosage of lidocaine for this procedure.
  • To assess the pharmacokinetic profile of lidocaine and epinephrine during tumescent liposuction.

Main Methods:

  • Utilizing the tumescent technique with dilute lidocaine (0.05%-0.1%) and epinephrine (1:1,000,000).
  • Administering a maximal safe dosage of lidocaine, estimated at 35 mg/kg.
  • Monitoring systemic absorption and plasma lidocaine concentrations over time.

Main Results:

  • The tumescent technique allows for large-volume fat removal with minimal blood loss.
  • Peak plasma lidocaine levels were observed 12 hours post-injection.
  • Clinically significant local anesthesia persisted for up to 18 hours.
  • Slow infiltration and dilution of anesthetics minimized systemic absorption and toxicity risk.

Conclusions:

  • The tumescent technique with lidocaine and epinephrine is a safe and effective method for liposuction.
  • A maximal lidocaine dosage of 35 mg/kg is considered safe.
  • Prolonged local anesthesia and reduced toxicity are key benefits, making longer-acting anesthetics unnecessary.

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