Reported Reactions

Devices › Recorder, magnetic tape, medical

Device brand name · Zio patch

Zio Xt Patch: medical device reports filed with FDA

364 reports name it, 2015–2022. Manufacturer given most often on reports: Irhythm Technologies. Product code DSH.

364
device reports naming the brand
0% of all MAUDE reports · about 32 a year
0
reports, 12 months to August 2026
0 in the 12 months before
4.4%
classified as malfunction
10% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 364 reports that name the brand "Zio Xt Patch" (zio patch), received between April 2015 and September 2022; the manufacturer given most often on reports is Irhythm Technologies. Spellings of one product vary from report to report.

0 reports arrived in the 12 months to August 2026, and none 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 injury (95.6%) and malfunction (4.4%); across all recorder, magnetic tape, medical reports (product code DSH) death is recorded in 0.6% and malfunction in 10%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are patient data problem (1.4%), output problem (0.5%) and defective device (0.3%). The patient problems coded most often are skin irritation, skin inflammation/ irritation and skin infection. 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: 10Oct 2021: 5Nov 2021: 5Dec 2021: 102022Jan 2022: 4Feb 2022: 11Mar 2022: 11Apr 2022: 4May 2022: 1Jun 2022: 0Jul 2022: 2Aug 2022: 2Sep 2022: 1Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 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

0511012015: 520152016: 520162017: 3120172018: 2620182019: 7220192020: 8820202021: 10120212022: 362022

Event type and report source

Event type, as classified on the report

Death0%0
Injury95.6%348
Malfunction4.4%16
Other0%0
Not given0%0

Who filed the report

Manufacturer report98.4%358
Voluntary report1.6%6
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 967 reports carrying product code DSH. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Patient data problem51.4%3.9%
Output problem20.5%0.4%
Defective devicethe device was defective10.3%0.3%
Device alarm system10.3%0.1%
Device handling problem10.3%0.2%
Failure to adhere or bond10.3%0.1%
Failure to sense10.3%0.1%
False negative result10.3%0.1%
Improper or incorrect procedure or method10.3%0.9%
Incorrect interpretation of signal10.3%0.1%
Incorrect, inadequate or imprecise result or readings10.3%0.2%
Loose or intermittent connection10.3%0.1%
Misconnection10.3%0.1%
Moisture damage10.3%0.1%
Patient-device incompatibilitythe device did not suit the patient10.3%44.2%

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
Skin irritationirritated skin17147%
Skin inflammation/ irritation15241.8%
Skin infection92.5%
Contact dermatitis71.9%
Appropriate clinical signs, symptoms and conditions term/code not available20.5%
Blistera blister20.5%
Arrhythmia10.3%
Erythemaskin redness10.3%
Itching sensation10.3%
Rashskin rash10.3%
Skin tears10.3%
Swelling/ edema10.3%
Ventricle, abnormality of10.3%

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

In context

MeasureZio Xt PatchProduct code DSHAll MAUDE reports
Reports36496726,136,888
Share of that pool—37.6%0%
Classified as death, per 1,000 reports069
Classified as injury95.6%89.2%36.2%
Classified as malfunction4.4%10%62.3%
Filed by the manufacturer98.4%91.7%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 DSH

BrandReportsLatest 12 monthsClassified as death
Zio Monitor3582210%
Universal electrode-patch1981600.5%
Confirm7,755340.1%

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 Zio Xt Patch reports

How many FDA reports name Zio Xt Patch?

364 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 0 in the latest 12 months.

What kinds of events are reported?

injury (95.6%) and malfunction (4.4%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

patient data problem (1.4%), output problem (0.5%), defective device (0.3%), device alarm system (0.3%) and device handling problem (0.3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (98.4%) and voluntary reports (1.6%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Zio Xt Patch 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.