Medtronic plc posted solid fiscal year second-quarter results led by the cardiovascular business with 9.3% growth. The Affera Sphere-9 pulsed field ablation system tripled the company’s sales in the hot PFA segment and pushed the cardiac ablation solutions unit to 71% growth, a nice uptick from the nearly 50% seen in its Q1.

Kardium Inc.’s Globe pulsed field system received U.S. FDA premarket approval, making it the fourth PFA system in the rapidly expanding market for cardiac ablation for atrial fibrillation. The system’s introducer sheath and mapping software also received clearance.

The U.K.’s National Institute for Health and Care Excellence (NICE) recommends the use of pulsed field ablation as an option to treat NHS patients with atrial fibrillation. NICE said evidence shows the procedure reduces atrial fibrillation and its symptoms, increases quality of life in the short term and raises no major safety concerns.

Boston Scientific Corp. resumed enrollment in the AVANT GUARD trial of the Farapulse pulse field ablation (PFA) system after a pause reported in October “to assess a few unanticipated observations.” The trial aims to expand the indications for the market-leading PFA system to include a new population, drug-naïve patients with persistent atrial fibrillation.

Almost a year after U.S. FDA approval of the first pulsed field ablation device for treatment of atrial fibrillation, Johnson & Johnson secured FDA approval for its Varipulse system, intensifying competition in the rapidly growing market.