Reported Reactions

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

Device brand name · No match

Neutrino NxT HF: medical device reports filed with FDA

1,076 reports name it, 2021–2026. Manufacturer given most often on reports: Abbott. Product code NIK.

1,076
device reports naming the brand
0% of all MAUDE reports · about 199 a year
331
reports, 12 months to August 2026
277 in the 12 months before
93.1%
classified as malfunction
47.2% across the product code
0.6%
classified as death, as reported
6 reports · not verified by FDA

FDA's MAUDE database holds 1,076 reports that name the brand "Neutrino NxT HF" (no match), received between February 2021 and August 2026; the manufacturer given most often on reports is Abbott. Spellings of one product vary from report to report.

331 reports arrived in the 12 months to August 2026, up 19% from 277 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 (93.1%), injury (6.3%) and death (0.6%); 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 over-sensing (78.3%), pacing problem (6.8%) and failure to interrogate (4.1%). The patient problems coded most often are arrhythmia, discomfort and pocket erosion. 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

02244Sep 2021: 3Oct 2021: 3Nov 2021: 2Dec 2021: 52022Jan 2022: 6Feb 2022: 2Mar 2022: 3Apr 2022: 8May 2022: 9Jun 2022: 14Jul 2022: 9Aug 2022: 5Sep 2022: 8Oct 2022: 12Nov 2022: 6Dec 2022: 82023Jan 2023: 18Feb 2023: 11Mar 2023: 15Apr 2023: 15May 2023: 5Jun 2023: 20Jul 2023: 16Aug 2023: 15Sep 2023: 16Oct 2023: 13Nov 2023: 15Dec 2023: 172024Jan 2024: 25Feb 2024: 24Mar 2024: 15Apr 2024: 25May 2024: 26Jun 2024: 20Jul 2024: 17Aug 2024: 19Sep 2024: 18Oct 2024: 25Nov 2024: 15Dec 2024: 322025Jan 2025: 20Feb 2025: 20Mar 2025: 32Apr 2025: 32May 2025: 18Jun 2025: 16Jul 2025: 29Aug 2025: 20Sep 2025: 24Oct 2025: 26Nov 2025: 22Dec 2025: 202026Jan 2026: 24Feb 2026: 29Mar 2026: 44Apr 2026: 30May 2026: 32Jun 2026: 31Jul 2026: 26Aug 2026: 23

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

01402792021: 3120212022: 9020222023: 17620232024: 26120242025: 27920252026: 2392026

Event type and report source

Event type, as classified on the report

Death0.6%6
Injury6.3%68
Malfunction93.1%1,002
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%1,076
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
Over-sensing84278.3%22.3%
Pacing problem736.8%4.9%
Failure to interrogate444.1%2.3%
Pacing asynchronously423.9%0.4%
Under-sensing282.6%1.6%
Inappropriate/inadequate shock/stimulation242.2%5.2%
Inappropriate or unexpected reset222%2.4%
Loose or intermittent connection212%0.6%
Incorrect interpretation of signal191.8%0.7%
Device sensing problem161.5%2.6%
Environmental compatibility problem141.3%0.4%
High impedance131.2%5.6%
Connection problema connection problem121.1%0.9%
Failure to capture111%4.1%
Failure to convert rhythm100.9%0.5%
Incorrect, inadequate or imprecise result or readings100.9%0.5%
Interrogation problem100.9%0.3%
No pacing80.7%0.2%
Failure to deliver shock/stimulation70.7%0.6%
Wireless communication problema wireless connection problem70.7%0.2%

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
Arrhythmia252.3%
Discomfortdiscomfort171.6%
Pocket erosion80.7%
Dyspneashortness of breath20.2%
Heart failure/congestive heart failure20.2%
Hematomaa collection of blood under the skin or in tissue20.2%
Syncope/fainting20.2%
Wound dehiscencea wound reopened20.2%
Burn(s)a burn10.1%
Fatiguetiredness10.1%
Hemorrhage/blood loss/bleeding10.1%
Low blood pressure/ hypotension10.1%
Thrombosis/thrombus10.1%

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

In context

MeasureNeutrino NxT HFProduct code NIKAll MAUDE reports
Reports1,076170,40426,136,888
Share of that pool—0.6%0%
Classified as death, per 1,000 reports6289
Classified as injury6.3%49.8%36.2%
Classified as malfunction93.1%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 Neutrino NxT HF reports

How many FDA reports name Neutrino NxT HF?

1,076 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 331 in the latest 12 months.

What kinds of events are reported?

malfunction (93.1%), injury (6.3%) and death (0.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

over-sensing (78.3%), pacing problem (6.8%), failure to interrogate (4.1%), pacing asynchronously (3.9%) and under-sensing (2.6%). 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 Neutrino NxT HF 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.