MAUDE Adverse Event Report: MEDTRONIC, INC. DUAL CHAMBER TEMPORARY PACEMAKER; PULSE-GENERATOR, PACEMAKER, EXTERNAL

Model Number 5392

Device Problems Under-Sensing (1661); Device Sensing Problem (2917)

Patient Problems Arrhythmia (1721); Tachycardia (2095); Ventricular Fibrillation (2130)

Event Date 11/12/2022

Event Type  Injury  

Manufacturer Narrative

Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

Event Description

It was reported that during bypass surgery the external pulse generator (epg) was set to ventricular demand mode (vvi) at 50 with sensitivity at 2 millivolts (mv) and an output of 20 milliamps (ma).The patient had an intrinsic heart rate of 80 beats per minute (bpm).Due to undersensing of the epg, pacing occurred r on t wave, resulting in ventricular tachycardia and ventricular fibrillation (vt/vf) with the need for defibrillation.The patient was successfully defibrillated without other complications.It was noted that the user did not evaluate sensing through the epg to confirm appropriate sensing.The epg was sent to the biomedical department for evaluation and it was noted that the biomedical engineer saw abnormal behavior when performing a safety check.No further patient complications have been reported as a result of this event.

Manufacturer Narrative

Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

Event Description

It was further reported that when the external pulse generator (epg) was evaluated the sensitivity function continued to gain without input.New cables were tried but the epg failed the sensitivity test repeatedly.

Manufacturer Narrative

Product analysis: analysis was unable to confirm the customer comment that the external pulse generator (epg) had a sensing issue.It was noted that the upper and lower cases were dented.Due to end of service life the epg shall not be repaired and shall be replaced at the customer's trade-in request.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

• Brand Name: DUAL CHAMBER TEMPORARY PACEMAKER
• Type of Device: PULSE-GENERATOR, PACEMAKER, EXTERNAL
• Manufacturer (Section D): MEDTRONIC, INC.; 8200 coral sea street ne; mounds view MN 55112
• Manufacturer (Section G): MEDTRONIC, INC.; 8200 coral sea street ne; mounds view MN 55112
• Manufacturer Contact: paula bixby ; 8200 coral sea st ne; mounds view, MN 55112 ; 7635055378
• MDR Report Key: 15823176
• MDR Text Key: 303901846
• Report Number: 2182208-2022-03713
• Device Sequence Number: 1
• Product Code: DTE
• UDI-Device Identifier: 00643169230859
• UDI-Public: 00643169230859
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K150246
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup
• Report Date: 12/13/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 11/18/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 5392
• Device Catalogue Number: 5392
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 12/08/2022
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 10/21/2014
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Life Threatening
• Patient Age: 58 YR
• Patient Sex: Male
• Patient Weight: 114 KG