What is it and how is it done?
The transformation zone and the lesions are destroyed with a carbon dioxide laser that is aimed through the colposcope.
Local anesthesia is used in the procedure, which is well-tolerated. The doctor ablates the transformation zone tissues by moving the laser beam over the cervical tissue. The tissue must be ablated to a depth of 6-8 mm in order to also destroy the epithelium inside the gland crypts.
What are the advantages and disadvantages of the method?
It has many advantages.
- The procedure is done under local anesthesia.
- Only the precise area is ablated. This minimizes the risk for premature labor in the future.
- If the technique is correct, healing is excellent.
- There is no significant increase in the frequency of premature labor in patients that have had this procedure, compared to the rest of the population.
The disadvantages are:
- There is no possibility of a histologic examination, since the tissue is destroyed.
- It is an expensive method due to the cost of the equipment and requires the doctor’s special training.