Reported Reactions

Devices › Implantable pulse generator, pacemaker (non-crt)

Device brand name · Implantable pulse generator pacemaker non-crt

External Temporary Pacemaker: medical device reports filed with FDA

333 reports name it, 2019–2026. Manufacturer given most often on reports: Medtronic Milaca. Product code LWP.

333
device reports naming the brand
0% of all MAUDE reports · about 44 a year
14
reports, 12 months to August 2026
18 in the 12 months before
88.9%
classified as malfunction
41.5% across the product code
0.6%
classified as death, as reported
2 reports · not verified by FDA

333 medical device reports received by FDA name the brand "External Temporary Pacemaker" (implantable pulse generator pacemaker non-crt); the manufacturer given most often on reports is Medtronic Milaca; received from January 2019 to July 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

14 reports arrived in the 12 months to August 2026, down 22% from 18 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (88.9%), injury (10.5%) and death (0.6%); across all implantable pulse generator, pacemaker (non-crt) reports (product code LWP) death is recorded in 1.2% and malfunction in 41.5%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are output problem (16.5%), unexpected shutdown (14.7%) and no device output (13.5%). The patient problems coded most often are no patient involvement, cardiac arrest and asystole. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

0510Sep 2021: 4Oct 2021: 5Nov 2021: 1Dec 2021: 42022Jan 2022: 0Feb 2022: 4Mar 2022: 4Apr 2022: 2May 2022: 3Jun 2022: 8Jul 2022: 4Aug 2022: 7Sep 2022: 2Oct 2022: 2Nov 2022: 5Dec 2022: 32023Jan 2023: 4Feb 2023: 1Mar 2023: 6Apr 2023: 3May 2023: 1Jun 2023: 3Jul 2023: 8Aug 2023: 3Sep 2023: 4Oct 2023: 3Nov 2023: 1Dec 2023: 32024Jan 2024: 1Feb 2024: 2Mar 2024: 2Apr 2024: 3May 2024: 10Jun 2024: 3Jul 2024: 1Aug 2024: 1Sep 2024: 1Oct 2024: 1Nov 2024: 2Dec 2024: 02025Jan 2025: 2Feb 2025: 0Mar 2025: 2Apr 2025: 2May 2025: 2Jun 2025: 6Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 3Nov 2025: 0Dec 2025: 22026Jan 2026: 4Feb 2026: 2Mar 2026: 0Apr 2026: 2May 2026: 0Jun 2026: 0Jul 2026: 1Aug 2026: 0

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

039772019: 6720192020: 7720202021: 5020212022: 4420222023: 4020232024: 2720242025: 1920252026: 92026

Event type and report source

Event type, as classified on the report

Death0.6%2
Injury10.5%35
Malfunction88.9%296
Other0%0
Not given0%0

Who filed the report

Manufacturer report99.7%332
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0.3%1

Grey bar: all 157,494 reports carrying product code LWP. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Output problem5516.5%0.7%
Unexpected shutdown4914.7%0.1%
No device output4513.5%0.6%
Mechanical problema mechanical problem4413.2%1.1%
Calibration problem4312.9%0.1%
Device sensing problem236.9%2.2%
Breakthe device broke113.3%0.5%
Failure to power up113.3%0.1%
Connection problema connection problem92.7%1.6%
Failure to capture92.7%5.3%
Electrical /electronic property probleman electrical or electronic problem72.1%0.5%
Battery problema problem with the battery61.8%3.4%
Insufficient device problem information51.5%0.7%
No display/image51.5%0.7%
Component missing41.2%0.1%
Inadequate user interface41.2%0%
Loose or intermittent connection30.9%0.3%
Failure to sense20.6%0.2%
Pacing intermittently20.6%0.1%
Power problem20.6%0.4%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
No patient involvement8525.5%
Cardiac arrestthe heart stopped41.2%
Asystole30.9%
Syncopefainting30.9%
Bradycardiaslow heart rate20.6%
Arrhythmia10.3%
Injurya physical injury10.3%
Myocardial infarctionheart attack10.3%
Non specific ekg/ECG changes10.3%
Tachycardiafast heart rate10.3%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureExternal Temporary PacemakerProduct code LWPAll MAUDE reports
Reports333157,49426,136,888
Share of that pool—0.2%0%
Classified as death, per 1,000 reports6129
Classified as injury10.5%57.3%36.2%
Classified as malfunction88.9%41.5%62.3%
Filed by the manufacturer99.7%99.3%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code LWP

BrandReportsLatest 12 monthsClassified as death
Assurity Mri18,9952,0351.8%
Teligen16,537470.6%
Ingenio7,5394930.8%
Cognis8,69461.5%
Ingevity9,0392990.9%
Accolade4,33541.5%
Attain Otw7,77309.1%
Energen5,23700.6%
Energen Icd3,1511420.2%
ACUITY X4 Spiral S2,8164240.5%
ACUITY X4 Straight2,6723820.4%
Incepta Icd2,4971260.1%
Altrua4,12202.4%
Incepta4,32700.7%
Revo MRI SureScan1,996122.9%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about External Temporary Pacemaker reports

How many FDA reports name External Temporary Pacemaker?

333 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 14 in the latest 12 months.

What kinds of events are reported?

malfunction (88.9%), injury (10.5%) and death (0.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

output problem (16.5%), unexpected shutdown (14.7%), no device output (13.5%), mechanical problem (13.2%) and calibration problem (12.9%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.7%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that External Temporary Pacemaker was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.