ST. JUDE MEDICAL, INC.(CRM-SYLMAR) DURATA STS OPTIM ACTIVE FIXATION, DF-4 CONNECTOR; PERMANENT DEFIBRILLATOR ELECTRODES
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Model Number 7122Q/58 |
Device Problems
Failure to Capture (1081); Retraction Problem (1536); Low impedance (2285)
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Patient Problems
Dyspnea (1816); Discomfort (2330); Cardiac Perforation (2513)
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Event Date 01/06/2024 |
Event Type
Injury
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Event Description
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It was reported that the patient was admitted to the hospital with shortness of breath and sternal pain.A device interrogation revealed failure to capture and a decrease in pacing impedance exhibited by the right ventricular lead.A computer tomography (ct) scan was performed and confirmed that the lead had perforated the heart.The patient was scheduled for revision and an attempt was made to reposition the lead.However, the helix failed to retract.The lead was explanted and replaced.The patient was stable.
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Manufacturer Narrative
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The reported events were cardiac perforation, failure to capture, low pacing impedance and helix mechanism issue.As received, a complete lead was returned in one piece.The reported event of helix mechanism issue was confirmed.Visual examination of the lead found the helix was extended and clogged with tissue.X-ray examination of the lead found the inner coil in the connector region was over torqued due to procedural damage.After the distal portion of the lead was cut and cleaned, torque was directly applied to the inner coil and the helix was able to retract and extend.The measured full helix extension length was within specification.The tip stiffness test was performed, and all results were within specification.The reported events of failure to capture and low pacing impedance were not confirmed.Visual and x-ray examination of the lead did not find any anomalies except for procedural damage.Electrical tests of the lead did not find any indication of conductor fractures or internal shorts.A device history record (dhr) review was performed and all required manufacturing processes and inspection steps were confirmed to be completed per the requirements.The device met specifications prior to leaving abbott manufacturing facilities.
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Manufacturer Narrative
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The reported events were cardiac perforation, failure to capture, low pacing impedance and helix mechanism issue.As received, a complete lead was returned in one piece.The reported event of helix mechanism issue was confirmed.Visual examination of the lead found the helix was extended and clogged with tissue.X-ray examination of the lead found the inner coil in the connector region was over torqued due to procedural damage.After the distal portion of the lead was cut and cleaned, torque was directly applied to the inner coil and the helix was able to retract and extend.The measured full helix extension length was within specification.The tip stiffness test was performed, and all results were within specification.The reported events of failure to capture and low pacing impedance were not confirmed.Visual and x-ray examination of the lead did not find any anomalies except for procedural damage.Electrical tests of the lead did not find any indication of conductor fractures or internal shorts.
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Search Alerts/Recalls
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