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CYBERONICS, INC. BIPOL LEAD MODEL 300 Back to Search Results
Model Number 300-20
Event Date 03/01/2012
Event Type  Injury  
Event Description

It was reported on (b)(6) 2012, that a vns patient thought his device was malfunctioning as it was sending electrical impulses to other parts of his body. The patient elaborated by saying he has been experiencing abdominal cramping, chest pain and should pain that was occurring every 5 minutes so he believed it as occurring with stimulation. The patient was also experiencing a shocking pain down his left arm and abdomen. When the patient met with his physician, he described the issues as a sharp pain in the left neck area, and sometimes it affects the left upper extremity, causing it to twitch, almost like a shock. At other times the pain is a funny sensation also in the right upper abdomen going to the right side of the abdomen. This lasts for about 30 seconds and occur every 3-5 days. Overall the pain is not and symptoms are not as severe, but they are still recurring, and strangely they do not occur every rhythmic beat with different time periods in between. The patient has not had any new weakness or numbness. No bowel or bladder changes. No trauma that could explain the symptoms. The patient does not have much of neck pain follow up with the physician revealed that the pain as subsided and the vns settings were lowered. The physician stated that the chest pain, should pain, and abdominal cramping were all related to vns however he did not indicate the relationship. There was no trauma or manipulation prior to the onset of any of the events nor was there any causal or contributory programming or medication changes. The physician will be programming the device off as a result of the reported events. The patient does not have a medical history of chest pain, shoulder pain, or abdominal cramping. When asked if there were any suspected device issues the physician responded "lead break?" however there were no diagnostic results available that indicated a device issue. X-rays were taken and sent to the manufacturer for review however no cause for the patient's adverse events was found. Additionally, no lead break or sharp angles were observed. The patient is going to be referred for revision surgery.

Event Description

Additional information was received on (b)(6) 2012 when it was reported that the patient denies having any pain with the device programmed off and there has not been any seizure activity either. The patient feels that the medications he is taking are controlling the seizures and he did not want to have his vns replaced at this time.

Manufacturer Narrative

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Type of DeviceLEAD
Manufacturer (Section D)
100 cyberonics blvd
houston TX 77058 770
Manufacturer (Section G)
100 cyberonics blvd
suite 600
houston TX 77058
Manufacturer Contact
nydia grimes
100 cyberonics blvd
suite 600
houston , TX 77058
MDR Report Key2565708
Report Number1644487-2012-01175
Device Sequence Number1
Product CodeLYJ
Report Source Manufacturer
Source Type Consumer,Health Professional,Company Representative
Reporter Occupation
Type of Report Initial,Followup
Report Date 04/18/2012
1 Device Was Involved in the Event
1 Patient Was Involved in the Event
Date FDA Received05/09/2012
Is This An Adverse Event Report? Yes
Is This A Product Problem Report? No
Device Operator LAY USER/PATIENT
Device EXPIRATION Date01/31/2003
Device MODEL Number300-20
Device LOT Number1900
Was Device Available For Evaluation? No
Is The Reporter A Health Professional? Yes
Event Location Other
Date Manufacturer Received05/09/2012
Was Device Evaluated By Manufacturer? Device Not Returned To Manufacturer
Date Device Manufactured01/11/2001
Is The Device Single Use? Yes
Is this a Reprocessed and Reused Single-Use Device? No
Type of Device Usage Initial

Date Received: 05/09/2012 Patient Sequence Number: 1