Cryoablation uses extremely cold temperature to destroy cells. Cardiac catheter cryoablation is used to destroy selected heart cells.

Possible Complications

Problems from the procedure are rare, but all procedures have some risk. Your doctor will review possible problems such as:

  • Bleeding
  • Infection
  • Pain where the cathether was inserted
  • Blood clots
  • Damage to nearby structures
  • Abnormal heart rhythm
  • Heart attack

Your chances of problems are higher for:

  • Smoking
  • Chronic disease such as diabetes or obesity
  • The type of heart problems you have



This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Edits to original content made by Denver Health.

a (Cryotherapy; Cryoablation)


American Heart Association 

Heart Rhythm Society 


Canadian Cardiovascular Society 

Heart and Stroke Foundation 


Ablation for arrhythmias. American Heart Association website. Available at: Updated June 5, 2017. Accessed July 9, 2018.

Catheter ablation. Johns Hopkins Medicine website. Available at:,45. Accessed July 9, 2018.

Catheter ablation. National Heart, Lung, and Blood Institute website. Available at: Accessed July 9, 2018.

Miller JM, Zipes DP. Cardiology patient page. Catheter ablation of arrhythmias. Circulation. 2002;106(25):e203-205.

6/2/2011 DynaMed Plus Systematic Literature Surveillance  : Mills E, Eyawo O, Lockhart I, Kelly S, Wu P, Ebbert JO. Smoking cessation reduces postoperative complications: a systematic review and meta-analysis. Am J Med. 2011;124(2):144-154.