SORIN GROUP ITALIA S.R.L. - CRM FACILITY REPLY; PULSE GENERATOR, PERMANENT, IMPLANTABLE
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Model Number ESPRIT S |
Device Problem
Loss of Threshold (1633)
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Patient Problem
Bradycardia (1751)
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Event Date 06/16/2015 |
Event Type
malfunction
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Event Description
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Reportedly, the patient went to the emergency room on (b)(6) 2015 presenting bradycardia and asystolic periods (ecg showed ventricular capture loss).A pacemaker follow-up was performed.An alert was displayed in overview showing a lead impedance above 3000 ohms.The physician tested the lead impedance manually and the value remained above 3000 ohms.The ventricular threshold was tested and no capture was possible to achieve, even with 7,5v@1.00ms.In the previous follow-ups the impedance was around 500 ohms, sensing above 15mv and the threshold was stable at 0,75v.On the (b)(6) 2015, the patient went to a re-intervention and the ventricular lead was tested using a psa.The measurements with the psa were unstable.The subject lead was extracted and a new lead (non-sorin) was implanted.Since it was very difficult to remove the entire lead body (adherence to the veins) the proximal lead body was cut and collected to vigilance.After implanting the new lead, the connection between the lead and the can was also unstable (intermittent pacing).The physician decided to replace the device.The subject device will be returned for analysis.
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Manufacturer Narrative
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The device model involved in this mdr report is not approved in the u.S.; however, it is similar to reply dr or sr models approved under p950029.
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Event Description
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Reportedly, the patient went to the emergency room on (b)(6) 2015 presenting bradycardia and asystolic periods (ecg showed ventricular capture loss).A pacemaker follow-up was performed.An alert was displayed in overview showing a lead impedance above 3000 ohms.The physician tested the lead impedance manually and the value remained above 3000 ohms.The ventricular threshold was tested and no capture was possible to achieve, even with 7,5v@1.00ms.In the previous follow-ups the impedance was around 500 ohms, sensing above 15mv and the threshold was stable at 0,75v.On the (b)(6) 2015 the patient went to a re-intervention and the ventricular lead was tested using a psa.The measurements with the psa were unstable.The subject lead was extracted and a new lead (non-sorin) was implanted.Since it was very difficult to remove the entire lead body (adherence to the veins) the proximal lead body was cut and collected to vigilance.After implanting the new lead, the connection between the lead and the can was also unstable (intermittent pacing).The physician decided to replace the device.The subject device will be returned for analysis.
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Manufacturer Narrative
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Preliminary analysis of the returned device did not reveal any anomaly.
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Event Description
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Reportedly, the patient went to the emergency room on (b)(6) 2015 presenting bradycardia and assistolic periods (ecg showed ventricular capture loss).A pacemaker follow-up was performed.An alert was displayed in overview showing a lead impedance above 3000 ohms.The physician tested the lead impedance manually and the value remained above 3000 ohms.The ventricular threshold was tested and no capture was possible to achieve, even with 7,5v@1.00ms.In the previous follow-ups the impedance was around 500 ohms, sensing above 15mv and the threshold was stable at 0,75v.On the (b)(6) 2015 the patient went to a re-intervention and the ventricular lead was tested using a psa.The measurements with the psa were unstable.The subject lead was extracted and a new lead (non-sorin) was implanted.Since it was very difficult to remove the entire lead body (adherence to the veins) the proximal lead body was cut and collected to vigilance.After implanting the new lead, the connection between the lead and the can was also unstable (intermittent pacing).The physician decided to replace the device.The subject device will be returned for analysis.
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