Cryocautery / Electrocautery / Radiocautery / Chemicalcautery
Cauterization is a process that uses heat, cold, or chemicals to destroy or remove tissue, often to stop bleeding or remove growths.
Electrocautery: This method uses heat generated by an electrical current to cut or coagulate tissue.
Cryocautery (Cryotherapy): This technique uses extreme cold, typically liquid nitrogen, to freeze and destroy tissue.
Radiocautery: This involves using high-frequency electrical currents to generate heat for cutting or coagulating tissue. It’s frequently used in surgeries involving the gastrointestinal tract and for removing polyps.
Chemical Cautery: This method utilizes chemical substances, such as silver nitrate or trichloroacetic acid, to burn and destroy tissue.
Cryocautery ❄️
Also called: Cryotherapy, Cryosurgery
Principle: Uses extreme cold to destroy abnormal tissue.
Energy source: Liquid nitrogen, nitrous oxide, or carbon dioxide (−196°C for liquid nitrogen).
Uses:
Removal of warts, skin tags, and precancerous lesions.
Treatment of cervical erosion, actinic keratosis.
Advantages:Minimal bleeding.
Usually painless after the initial sting.
Quick healing with less scarring.
Limitations:Depth control can be tricky.
May cause temporary hypopigmentation.
2. Electrocautery ⚡🔥
Principle: Direct electric current heats a metal probe to burn/destroy tissue.
Energy source: Electricity (heating a wire tip).
Uses:
Stop bleeding in minor surgeries.
Remove small growths like moles, papillomas.
Advantages:Simple equipment.
Effective for hemostasis.
Limitations:Can cause more tissue damage if not carefully applied.
Produces smoke and smell.
3. Radiocautery 📡
Also called: Radiosurgery, Radiofrequency cautery.
Principle: Uses high-frequency radio waves to cut/coagulate tissue with minimal thermal damage.
Energy source: Radiofrequency (usually 3–4 MHz).
Uses:
Dermatology, ENT, gynecology procedures.
Precise removal of lesions with minimal scarring.
Advantages:Precise, minimal collateral tissue damage.
Less post-procedure pain and faster healing.
Limitations:Requires specific equipment.
More expensive than electrocautery.
4. Chemical Cautery 🧪
Principle: Uses chemicals to burn and destroy tissue.
Common agents: Trichloroacetic acid (TCA), silver nitrate, phenol, podophyllin.
Uses:
Removal of warts, corns, small lesions.
Controlling minor bleeding (silver nitrate sticks).
Advantages:No special machines needed.
Easy to apply for small lesions.
Limitations:Depth control is difficult.
Can cause chemical burns to surrounding skin if misapplied.