(b)(4).The product was discarded, therefore no product failure analysis can be conducted and device malfunction cannot be confirmed. if additional information is received regarding this event, a supplemental 3500a report will be submitted to the fda.The manufacturing record evaluation (mre) cannot be conducted because no lot number was provided by the customer.Manufacturer's ref.No: (b)(4).
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It was reported that a (b)(6) year old male patient underwent a right sided atypical atrial flutter ablation procedure with a thermocool® smart touch® sf bi-directional navigation catheter and developed sinus bradycardia requiring surgical intervention.Towards the end of the procedure, post use of biosense webster products, after finishing the ablation line, and coming off coronary sinus pacing for blood pressure and stability, the patient's electrical signals for the sa node were slow to come back intrinsically.In addition, it was also noticed that the posterior and anterior sides of the superior vena cava had scar tissue.The physician used intracardiac echocardiogram to check for an effusion, and it was confirmed that no effusion was present.The slow sa node firing was confirmed by electrocardiograms.A permanent pacemaker was implanted.The patient was reported to be in stable condition.Extended hospitalization was not required as a result of the event.Physician¿s opinion regarding the cause of the event is that it is patient condition related.
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