Liquid nitrogen/cryotherapy guidelines

Author: Procare Guidelines Group; Chief Editor: Dr Amanda Oakley, Dermatologist, Hamilton, New Zealand, 3 August 2014.

These guidelines were provided to DermNet New Zealand by ProCare Health Limited, July 2014

Disclaimer

These guidelines have been written for the use of ProCare member practices. No set of guidelines can cover all variations required for specific patient circumstances. It is the responsibility of the health care practitioners using these guidelines to adapt them for safe use within their institutions and for the individual needs of patients.

Definition

Cryotherapy is a minimally invasive procedure that uses an extremely cold liquid or instrument to freeze and destroy abnormal tissue that requires elimination. It is also referred to as cryosurgery or cryoablation.

Scope

Medical practitioners and registered nurses who have been are trained to perform the procedure.

Treatment of malignant skin lesions by cryotherapy is not covered by this document.

Indications for cryotherapy

*Diathermy may be more effective for acrochordons / fibroepithelial polyps

The following skin cancers may be suitable for cryotherapy if performed by a medical practitioner with appropriate training and where the lesion has been identified by biopsy:

Contraindications to cryotherapy

Precautions when using cryotherapy

Checklist for cryotherapy

Pre-procedure

Prepare equipment/environment

Liquid Nitrogen Application

Post–procedure

Inform patient that the treated area:

If there are any signs of infection the patient should contact the practice**

**For example, increasing redness of surrounding skin, discharge, increasing pain

Complications and side-effects

Acute

Delayed

Permanent (uncommon)

Safety considerations

Relevant practice policies and procedures

  1. Health and Safety Policy
  2. Informed Consent Policy
  3. Infection Control Policy
  4. Practice Hazard Register
  5. Material Data Safety Sheets: liquid nitrogen

Related information

Email Newsletter

Would you like to receive our dermatology updates by email?

SIGN UP

Submit your images

We're seeking high-quality photos of skin diseases.  

SUBMIT A PHOTO

Machine diagnosis

Watch DermNet's proposal to create a 'Skin Disease Image Recognition Tool' - winner of the 2017 'Clinicians' Challenge Active Award' by the NZ Ministry of Health and HiNZ.

Subscribe to our mailing list

* indicates required
DermNet NZ Newsletter