Reported Reactions

Devices › Defibrillator, automatic implantable cardioverter, with cardiac resynchronization (crt-d)

Device brand name · Defibrillator automatic implantable cardioverter with crt-d

Inogen Crt-D: medical device reports filed with FDA

428 reports name it, 2018–2026. Manufacturer given most often on reports: Boston Scientific. Product code NIK.

428
device reports naming the brand
0% of all MAUDE reports · about 50 a year
40
reports, 12 months to August 2026
42 in the 12 months before
50.9%
classified as malfunction
47.2% across the product code
0.7%
classified as death, as reported
3 reports · not verified by FDA

428 medical device reports received by FDA name the brand "Inogen Crt-D" (defibrillator automatic implantable cardioverter with crt-d); the manufacturer given most often on reports is Boston Scientific; received from January 2018 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

40 reports arrived in the 12 months to August 2026, close to the 42 of 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 (50.9%), injury (48.4%) and death (0.7%); across all defibrillator, automatic implantable cardioverter, with cardiac resynchronization (crt-d) reports (product code NIK) death is recorded in 2.8% and malfunction in 47.2%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are high impedance (38.3%), over-sensing (23.1%) and pacing problem (16.6%). The patient problems coded most often are electric shock, sepsis and shock from patient lead(s). 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

0611Sep 2021: 1Oct 2021: 6Nov 2021: 0Dec 2021: 02022Jan 2022: 7Feb 2022: 3Mar 2022: 0Apr 2022: 9May 2022: 9Jun 2022: 5Jul 2022: 8Aug 2022: 2Sep 2022: 4Oct 2022: 2Nov 2022: 5Dec 2022: 22023Jan 2023: 6Feb 2023: 11Mar 2023: 3Apr 2023: 1May 2023: 2Jun 2023: 9Jul 2023: 3Aug 2023: 6Sep 2023: 3Oct 2023: 7Nov 2023: 1Dec 2023: 32024Jan 2024: 5Feb 2024: 4Mar 2024: 2Apr 2024: 8May 2024: 5Jun 2024: 6Jul 2024: 6Aug 2024: 3Sep 2024: 2Oct 2024: 6Nov 2024: 2Dec 2024: 52025Jan 2025: 3Feb 2025: 3Mar 2025: 4Apr 2025: 5May 2025: 2Jun 2025: 1Jul 2025: 5Aug 2025: 4Sep 2025: 2Oct 2025: 5Nov 2025: 5Dec 2025: 52026Jan 2026: 3Feb 2026: 4Mar 2026: 5Apr 2026: 2May 2026: 4Jun 2026: 1Jul 2026: 2Aug 2026: 2

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

039772018: 1620182019: 7720192020: 4620202021: 5720212022: 5620222023: 5520232024: 5420242025: 4420252026: 232026

Event type and report source

Event type, as classified on the report

Death0.7%3
Injury48.4%207
Malfunction50.9%218
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%428
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 170,404 reports carrying product code NIK. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
High impedance16438.3%5.6%
Over-sensing9923.1%22.3%
Pacing problem7116.6%4.9%
Signal artifact/noise6214.5%1.9%
Inappropriate/inadequate shock/stimulation347.9%5.2%
Premature discharge of battery286.5%11%
Failure to capture266.1%4.1%
Device sensing problem235.4%2.6%
Incorrect, inadequate or imprecise result or readings235.4%0.5%
High capture threshold174%1%
Low impedance174%1%
Defective devicethe device was defective153.5%0.7%
Connection problema connection problem122.8%0.9%
Battery problema problem with the battery81.9%1.8%
Impedance problem71.6%0.5%
Inaccurate synchronization71.6%0.2%
Noise, audible71.6%0.1%
Under-sensing71.6%1.6%
Failure to read input signal51.2%0.3%
Device displays incorrect message40.9%0.8%

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
Electric shockan electric shock235.4%
Sepsisa severe body-wide response to infection214.9%
Shock from patient lead(s)122.8%
Asystole102.3%
Bradycardiaslow heart rate71.6%
Arrhythmia61.4%
Syncope/fainting61.4%
Ventricular fibrillationa chaotic rhythm from the lower heart chambers61.4%
Dizzinesslight-headedness or unsteadiness51.2%
Pocket erosion51.2%
Bacterial infectiona bacterial infection30.7%
Device overstimulation of tissue30.7%
Dyspneashortness of breath20.5%
Falla fall20.5%
Syncopefainting20.5%

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

In context

MeasureInogen Crt-DProduct code NIKAll MAUDE reports
Reports428170,40426,136,888
Share of that pool—0.3%0%
Classified as death, per 1,000 reports7289
Classified as injury48.4%49.8%36.2%
Classified as malfunction50.9%47.2%62.3%
Filed by the manufacturer100%99.2%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 NIK

BrandReportsLatest 12 monthsClassified as death
Quadra Assura MP ICD14,8975072.1%
Gallant HF8,9711,9180.7%
Quadra Assura Crt-D Quad Rf Hv7,971142.5%
Quartet14,1498485.2%
Unify Assura CRT-D RF HV6,7311863.7%
Unify Crt-D5,907103.4%
Consulta Crt-D4,62305.9%
Unify Assura ICD4,5111271.6%
Claria MRI Quad CRT-D SureScan3,7752742.2%
Cognis8,69461.5%
Protecta Xt Crt-D3,54134.5%
Quadra Assura Ddqp+3,34902.3%
Contak Renewal3,74504.8%
Cobalt XT HF Quad CRT-D MRI SureScan2,5817913%
Quadra Assura ICD2,526670.8%

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 Inogen Crt-D reports

How many FDA reports name Inogen Crt-D?

428 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 40 in the latest 12 months.

What kinds of events are reported?

malfunction (50.9%), injury (48.4%) and death (0.7%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

high impedance (38.3%), over-sensing (23.1%), pacing problem (16.6%), signal artifact/noise (14.5%) and inappropriate/inadequate shock/stimulation (7.9%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Inogen Crt-D 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.