Can Lip Knife treat cervical lesions?

The cervix is ​​an important part of the female body, and cervical disease is also a common gynecological disease in women. Cervical lesions can easily lead to abdominal pain, inflammation and other problems, which are very distressing to women. The Lip knife is a relatively new surgical method in medicine. The Lip knife can effectively treat female cervical diseases and reduce harm to the body.

Early resection is still necessary. The Lip knife is currently a commonly used surgical method. It causes little surgical trauma and is a minimally invasive surgery. It is also the most commonly used method for treating precancerous lesions of the cervix. The treatment effect is still very good and can play a role in preventing cervical diseases.

The Lip Knife, also known as the ultra-high frequency radio wave knife, is a professional technology developed in recent years that is specifically used for minimally invasive diagnosis and treatment of cervical diseases. The tip of the electrode generates a high-frequency radio wave of 3.8 MHz. When it comes into contact with the body, the tissue absorbs the high-frequency radio wave due to its own impedance and generates high heat instantly.

The Lip Knife uses directional radio frequency wave emission technology. In the radio frequency wave field in the local tissue of the emitter, the radio frequency energy directly excites the liquid polar molecules in the tissue to produce plasma oscillations, breaking the molecular bonds. Under low temperature (40℃～70℃), it can achieve a fine and minimally invasive cutting effect. The frictional heat effect of molecular wave vibration is used to stop bleeding, tissue ablation and contraction.

The high-frequency radio wave knife uses a high-frequency wireless knife to pass the LOOP metal wire to generate 3.8 MHz ultra-high frequency (microwave) waves from the electrode tip. At the moment of contact with body tissue, the tissue itself generates impedance, absorbs the radio waves to generate high heat, and makes the water in the cells form steam waves to complete various cutting, hemostasis and other surgical purposes, but it does not affect the pathological examination of the tissue at the edge of the incision. The principles of high-frequency radiofrequency surgery are different from those of traditional electrosurgical surgery: traditional electrosurgical surgery uses the impedance of the electrode itself, and the high heat generated by the current passing through it to achieve the surgical purpose. The output frequency is 0.3-1.0 MHz, while the heat energy converted by the radio frequency of the high-frequency radiofrequency surgery is generated inside the tissue. The sine wave generated by the radio frequency causes the water in the cells to oscillate, generating heat and evaporation. The cells contacted by the emission technique rupture, causing the tissue to separate, and the radio frequency emitter itself does not generate heat.

Applicable scope

Regarding the scope of LEEP surgery, according to literature reports, lesions ≥ 2.5 cm should be cone-cut, and the scope of cone-cut should exceed normal tissue by 1 mm. Based on the experience of carbon dioxide laser treatment of CIN, it was found that the depth affects the cure rate. The average depth of CIN involving cervical glands is 1.24mm, and the deepest is 5.22mm. The depth of laser treatment increased from 3mm to 5mm, and the cure rate of lesions also increased from 68% to 87%. This study suggests that the ideal depth of LEEP cone biopsy of the cervix is ​​approximately 7 mm. According to literature reports, a needle electrode is repeatedly inserted into the cervical canal to a depth of 1.5 cm to destroy lesions in the cervical canal. This improvement has increased the cure rate and reduced the persistence rate of lesions to 2.7%. This study suggests that the ideal depth of LEEP cone biopsy of the cervix is ​​about 15 mm. The results suggest that LEEP conization in this range is more time-saving, labor-saving and safer than traditional electrosurgical conization. Regarding LEEP biopsy, the results of this study confirmed that a cervical depth of 4 mm and a cervical canal depth of 4 mm can achieve both diagnostic and therapeutic effects while avoiding the removal of excessive tissue, which is superior to cervical forceps biopsy. Specifically:

2. Suspected early invasive cervical cancer or carcinoma in situ.

3. Chronic cervicitis that cannot be cured for a long time.

4. Patients with persistent CIN or inconvenient follow-up of CIN.

5. CCT suggests ASCUS or symptomatic cervical ectropion.

6. Neoplasms in the cervical canal (large polyps, multiple polyps, large cysts, etc.);

7. Cervical condyloma acuminatum.

8. Cervical CIN combined with condylomata.

9. Treatment of uterine fibroids.

10. Auxiliary treatment for other cancers.