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Europace ; 21(3): 440-444, 2019 Mar 01.
Article in English | MEDLINE | ID: mdl-30085050

ABSTRACT

AIMS: We investigated safety and efficacy of a high throughput atrial fibrillation (AF) ablation service within a local non-cardiac centre compared with matched patients at the regional tertiary cardiac centre. METHODS AND RESULTS: Patients were consented in clinic and pre-assessed by clerical staff. Locally, other than physicians, staff had no experience of ablation and were trained with simulations. Pulmonary vein isolation (PVI) was performed with conscious sedation, on uninterrupted anticoagulation for at least 4 weeks. No transoesophageal echocardiogram (TOE) was performed. A 28 mm Arctic Front Advance Cryoballoon was used. A 20 mm Achieve wire demonstrated PVI on a portable laptop-based EP recording system. Phrenic nerve function was monitored during right PVI. Finally, a transthoracic echocardiogram excluded a pericardial effusion. A Femostop was applied. Two hundred and seventy-six patients were matched. Average age was 61 ± 0.7 years, 39% female. CHA2DS2 VASc score varied from 0 to 7. Procedure time was significantly shorter at the local hospital (63.5 ± 1.1 vs. 101.7 ± 2.9 min, P < 0.0001). Fluoroscopy time (5.5 ± 0.2 vs. 12.6 ± 0.6 min, P < 0.0001) and fluoroscopy dose were lower (17.2 ± 2.1 vs. 97.6 ± 14.6 mGy, P < 0.0001). Successful PVI was achieved in all. The complication rate was low (5.4% vs. 6.3%, P = not significant). Four (1.4%) patients were not day case discharges. At 3 month follow-up, 54.3% had complete resolution, and 26.1% had improvement of symptoms. A total of 16.6% patients requested repeat procedures for ongoing symptoms. CONCLUSION: In experienced hands, cryoballoon for paroxysmal AF is delivered safely and effectively in a local centre. Outcomes remain excellent. These short, day case procedures allow utilization of non-cardiac centres. The service provides a model to meet increasing demands.


Subject(s)
Ambulatory Surgical Procedures , Atrial Fibrillation/surgery , Cryosurgery , Hospitals, High-Volume , Hospitals, Low-Volume , Pulmonary Veins/surgery , Tertiary Care Centers , Ambulatory Surgical Procedures/adverse effects , Anticoagulants/administration & dosage , Atrial Fibrillation/diagnosis , Atrial Fibrillation/physiopathology , Conscious Sedation , Cryosurgery/adverse effects , Female , Health Services Needs and Demand , Humans , Length of Stay , Male , Medical Audit , Middle Aged , Operative Time , Patient Discharge , Patient Safety , Postoperative Complications/etiology , Prospective Studies , Pulmonary Veins/physiopathology , Recurrence , Reoperation , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
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