What Is Tumescent Anesthesia?

Tumescent Anesthesia, also known as Tumescent Technique, is a method of local anesthesia.

Swelling anesthesia

Definition of swelling anesthesia

Tumescent Anesthesia, also known as Tumescent Technique, is a method of local anesthesia.

Swelling anesthesia was first proposed by Klein in 1987. It is also called "overfusion perfusion anesthesia", which is to perfuse a large amount of the solution containing adrenal gland and lidocaine into the skin, causing edema of subcutaneous tissue and its structure, separation of interstitial cells, and compression of small blood vessels It is closed, thereby achieving the effects of local anesthesia, analgesia, and tissue separation.

Swelling anesthesia can be used as a separate local anesthesia or combined with general anesthesia or regional block anesthesia.

Since swelling anesthesia was first proposed in 1987, it has undergone a lot of research and improvement. It has been widely used in the world in the past 10 years, especially for liposuction surgery, and has now become an indispensable component of liposuction. section.

Ingredients for swelling anesthesia

Basic ingredients: epinephrine, lidocaine, saline, and sometimes sodium bicarbonate, dexamethasone, etc.

In the formulation of the swelling anesthesia solution, the purpose of adding epinephrine is to shrink small blood vessels under the skin, reduce bleeding, slow the absorption of local anesthetics, prolong the duration of anesthesia, reduce exudation, etc .; sodium bicarbonate is added to neutralize the pH of the swelling fluid Value, alleviate discomfort during injection of acidic substances, buffer the acidity of lidocaine, reduce the tingling sensation of local anesthetic solution, and increase the action time of lidocaine; glucocorticoids (such as dexamethasone) are added to increase skin resistance The ability to be affected by ischemia reduces the basal metabolism of the tissue or increases the utilization of metabolites, and can resist inflammation, regulate the functional state of neutrophils, and prevent excessive infiltration of white blood cells in the tissue.

Swelling anesthesia general preparation method

In 1000ml of physiological saline, 20% to 50% of 2% lidocaine, 1mg of adrenaline, and 5 to 20ml of 5% sodium bicarbonate were added. Finally, the concentration of lidocaine is 0.05% to 0.1%, and the concentration of the adrenaline solution is 1: 2 million to 1: 1 million. Some people treat this quantity as a unit. It is generally believed that the maximum dosage can reach 4 units.

Evaluation of advantages and disadvantages of swelling anesthesia

The main advantages of swelling anesthesia:

1. High safety, light tissue damage; less blood loss, generally no blood transfusion is needed during operation

2. Good analgesic effect, almost no pain during operation, long anesthesia effect

3. Feel good after surgery and recover quickly

3. Can be used alone as an anesthesia without the need for general or block anesthesia, thereby avoiding the risk of general or other anesthesia

4. It does not need to be implemented by a professional anesthesiologist, it can be completed completely by the surgeon, especially suitable for small and medium-sized cosmetic and plastic professional institutions.

However, the application of a large number of local anesthetics still has the potential dangers of toxic and side effects, as well as the intermittent pain at the surgical site and various procedures that induce stress reactions in the subject.