This information is based entirely on journal literature.
Medtronic was made aware of this event through a search of literature publications.
This event occurred outside the us.
Patient information is limited due to confidentiality concerns.
Of note, multiple patients and multiple manufacturers were noted in the article; however, a one to one correlation could not be made with unique product serial/lot numbers.
The baseline gender/age characteristics is male/(b)(6).
The model listed in the report is a representative of the model family, as there is no specific model listed.
Without a lot number or device serial number, the manufacturing date cannot be determined.
Since no device id was provided, it is unknown if this event has been previously reported.
A request for additional information will be made and upon receipt a supplemental report will be submitted accordingly.
Referenced article: real-world safety profile of atrial fibrillation ablation using a second-generation cryoballoon in japan insight from a large multicenter observational study.
Journal of the american college of cardiology:clinical electrophysiology.
2021.
7:60413.
Doi.
Org/10.
1016/j.
Jacep.
2020.
11.
016 if information is provided in the future, a supplemental report will be issued.
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A journal article was reviewed that contained information regarding cryoballoon ablation.
The article reports patients who experienced air embolisms which manifested as a transient st-segment elevation in the inferior leads and one patient experienced subsequent ventricular fibrillation (vf) requiring electrical cardioversion.
There were patients that had cardiac tamponade which required pericardiocentesis, among them, some patients with perforations occurred by a transseptal puncture and cavotricuspid isthmus ablation which required emergent surgery, symptomatic gastric hypomotility (abdominal bloating and repeated vomiting) requiring readmission or prolongation of the admission, all patients with gastric issues recovered after fasting and medical treatment.
There were three cases of strokes, one with an epileptic seizure and impairment of consciousness during the procedure who recovered under medical treatment including an antiepileptic drug, another stroke with impairment of consciousness which continued post-procedure, and a third stroke hemiplegia appeared the day after the procedure despite uninterrupted warfarin therapy.
All patients with strokes recovered without any neurological sequelae after conservative treatment.
Three other patients experienced transient ischemic attack (tia) and were bridged with heparin.
There were two patients experienced brainstem hemorrhages and cerebellar hemorrhages at four days and one month post-procedure while taking direct oral anticoagulants, respectively.
Both patients recovered under conservative treatment.
Other patients developed coronary spasms, and all recovered spontaneously or after an intravenous/intracoronary nitroglycerin adm inistration.
Four patients experienced pericarditis (clinically significant manifestations requiring medication) post-procedure, and all recovered with medical treatment including anti-inflammatory drugs.
Femoral arteriovenous fistulae, pseudoaneurysms, deep vein thromboses, and pneumothoraxes occurred in other patients.
Two patients with arteriovenous fistulae required surgery.
The pseudoaneurysms disappeared with direct compression in five patients, while the remaining three required surgery.
One patient experienced sepsis post-procedure and recovered with conservative treatment.
The status/disposition of the catheters and sheaths is unknown.
No further patient complications have been reported as a result of this event.
Further follow up did not yet yield any additional information.
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