The product was discarded.Therefore, no product failure analysis can be conducted and device malfunction cannot be confirmed.A manufacturing record evaluation was performed for the finished device and no internal actions were identified.If additional information is received regarding this event, a supplemental 3500a report will be submitted to the fda.(b)(4).
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It was reported that a (b)(6)-year-old female patient underwent an idiopathic ventricular tachycardia ablation procedure for idiopathic premature ventricular contractions (pvc) with a thermocool® smart touch® sf bi-directional navigation catheter and suffered ventricular fibrillation (vf) and died.During the procedure, mapping was performed, and a single ablation was done which resulted in suppression of the pv, but not total elimination.Pacing was performed which induced ventricular tachycardia (vt).This was able to be pace terminated.A second vt was then induced which degenerated into vf and the patient required defibrillation.A third vt was induced, followed by vf, and then attempts at defibrillation.Patient¿s rhythm would not stabilize.The patient declined rapidly and blood pressure on the arterial line crashed.Cardiopulmonary resuscitation (cpr) and advanced cardiovascular life support were performed.A transcutaneous surface echocardiogram was performed which did not demonstrate any pericardial effusion.Patient anatomy and size, as well as ongoing cpr interfered with imaging.No attempt at pericardiocentesis was made.Despite resuscitative efforts, the patient did not survive.There were no product malfunctions or concerns with error messages during the case.The physician did not express concern about how the product functioned during the case nor afterward.The physician¿s opinion on the cause of the event is that it was procedure related.The physician suspects the cause may have been due to a coronary dissection, but that was not confirmed.To date, no autopsy or medical examination by a medical examiner has been performed.
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