This complaint is from a literature source.The following literature cite has been reviewed: akhtar t, wallace r, daimee ua, sivasambu b, hart e, yang e, marine je, berger r, calkins h, spragg d.Safety and efficacy of cryoballoon versus radiofrequency ablation for atrial fibrillation in elderly patients: a real-world evidence.Indian pacing electrophysiol j.2022 jan-feb;22(1):24-29.Doi: 10.1016/j.Ipej.2021.11.006.Epub 2021 nov 25.Pmid: 34838748; pmcid: pmc8811282.No device was received for analysis at the time of submission of the initial 3500a.Since the product was not returned for analysis, no product failure analysis can be conducted, and no determination of possible contributing factors could be made.Device history record (dhr) review cannot be conducted because the lot number was not provided by the customer.Manufacturer's reference number: (b)(4).
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This complaint is from a literature source.The following literature cite has been reviewed: akhtar t, wallace r, daimee ua, sivasambu b, hart e, yang e, marine je, berger r, calkins h, spragg d.Safety and efficacy of cryoballoon versus radiofrequency ablation for atrial fibrillation in elderly patients: a real-world evidence.Indian pacing electrophysiol j.2022 jan-feb;22(1):24-29.Doi: 10.1016/j.Ipej.2021.11.006.Epub 2021 nov 25.Pmid: 34838748; pmcid: pmc8811282.Objective/methods/study data: background: there are limited data describing the experience of radiofrequency (rf) vs.Cryoballoon (cb) ablation for atrial fibrillation (af) among elderly patients in the united states.Methods: we conducted a retrospective analysis of patients 75 years of age undergoing index rf vs.Cb ablation between january 2014 and may 2020 at our center.The choice of ablation technique was left to the operator's discretion.Major complications and efficacy, defined as freedom from any atrial tachyarrhythmia (ata) lasting 30 s after one year of follow-up, were assessed in patients with index rf vs.Cb ablation.Results: in our cohort of 186 patients, the median age was 78 (76e81) years, 54.8% were men, and 39.2% had persistent af.The median cha2ds2-vasc score was 4 (3e4), while the median duration of af was 3 (1e7) years.The majority (n ¼ 112, 60.2%) underwent rf ablation.The median procedure time was significantly lower in cb group (197 vs 226.5 min, p¼<0.01).The incidence of complications was similar in the two sub-groups (rf: 1.8% vs.Cb: 2.7%, p ¼ 0.67).Similarly, arrhythmia-free survival rate on antiarrhythmic drugs at 1-year follow-up remained statistically comparable (63.4% vs.68.9%, p ¼ 0.33) between patients receiving rf vs.Cb ablation.Conclusion: the safety and efficacy of rf vs.Cb ablation for af remained comparable in our cohort of patients older than 75 years.Cb ablation was associated with a shorter procedure time.Lot, model and catalog number are not available, but the suspected biosense device possibly associated with reported adverse events: thermocool smarttouch, biosense-webster: other biosense webster concomitant devices that were also used in this study: lasso, pentaray mapping catheter (biosense-webster, diamond bar, california), carto system.Non-biosense webster concomitant devices that were also used in this study: arctic front advance, medtronic.Adverse event(s) and provided interventions: 1 patient suffered cardiac tamponade.1 patient suffered pericardial effusion.Both patients required prolonged hospitalization.There was no mention of medical interventions provided.
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