Medtronic's (Dublin), Arctic Front Advance ST Cryoablation Catheter, which uses coolant rather than heat for patients suffering from atrial fibrillation, is warming up the market, as the device has reportedly gained FDA approval and CE mark approval. The company noted that the two approvals deal with separate indications and said that the PMA approval would allow for the treatment of patients with drug refractory, recurrent, symptomatic paroxysmal atrial fibrillation.