Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices
Abstract Background Cardiac implantable electronic devices (CIEDs) activate the magnet response at a magnetic flux density of ≥10 gauss (G), which may cause unintended pacing, leading to discomfort or even severe arrhythmias. Information processing devices have recently incorporated magnets, which m...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-08-01
|
| Series: | Journal of Arrhythmia |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/joa3.70106 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849221917532225536 |
|---|---|
| author | Norio Kamitani Aya Miyazaki Satoko Tomida Keita Shimizu Nodoka Ohira Keisyun Kondo Hiromichi Miura Daishi Koyama Shigehiko Tominaga Ryuta Henmi Ryo Sugiura Hiroshi Masui |
| author_facet | Norio Kamitani Aya Miyazaki Satoko Tomida Keita Shimizu Nodoka Ohira Keisyun Kondo Hiromichi Miura Daishi Koyama Shigehiko Tominaga Ryuta Henmi Ryo Sugiura Hiroshi Masui |
| author_sort | Norio Kamitani |
| collection | DOAJ |
| description | Abstract Background Cardiac implantable electronic devices (CIEDs) activate the magnet response at a magnetic flux density of ≥10 gauss (G), which may cause unintended pacing, leading to discomfort or even severe arrhythmias. Information processing devices have recently incorporated magnets, which may activate the magnet mode in patients with abdominally implanted devices, subcutaneous implantable cardioverter‐defibrillators (ICDs), or extravascular ICDs. Methods We investigated the effects of the magnetic fields generated by information processing devices (tablets, laptops, and smartphones) and household/leisure magnets on 13 models of CIEDs, analyzing their association with magnet mode activation in different manufacturers' CIEDs. Results The tested magnet materials exhibited a maximum magnetic flux density of 290–1360 G. The magnetic flux density distribution in the information processing devices was as follows: accessory connectors, speakers, cameras, and microphones (p = 0.0001). The median activation distances for the magnet mode were 6.5 (range, 4–15), 5 (4–11.3), and 0.01 (activated only when attached; 0–7) mm for tablets and laptops, smartphones, and household/leisure magnets, respectively (p < 0.0001). The maximum distance at which the magnetic flux density decreased below 10 G was the longest for tablets and laptop computers at 18 mm. Conclusion Information processing devices and household/leisure magnets can affect CIEDs when placed in close proximity. Among the devices tested, magnet mode activation did not occur at distances of ≥20 mm. Considering the increasing prevalence of information processing devices and the growing adoption of nonthoracic CIED placements, raising awareness among patients about potential interactions is crucial. |
| format | Article |
| id | doaj-art-88f9e78032574f48b2e950c23663d06f |
| institution | Kabale University |
| issn | 1880-4276 1883-2148 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Arrhythmia |
| spelling | doaj-art-88f9e78032574f48b2e950c23663d06f2025-08-26T10:38:55ZengWileyJournal of Arrhythmia1880-42761883-21482025-08-01414n/an/a10.1002/joa3.70106Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devicesNorio Kamitani0Aya Miyazaki1Satoko Tomida2Keita Shimizu3Nodoka Ohira4Keisyun Kondo5Hiromichi Miura6Daishi Koyama7Shigehiko Tominaga8Ryuta Henmi9Ryo Sugiura10Hiroshi Masui11Department of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Pediatric Cardiology Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Cardiology Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Cardiology Seirei Hamamatsu General Hospital Hamamatsu JapanDepartment of Clinical Engineering Seirei Hamamatsu General Hospital Hamamatsu JapanAbstract Background Cardiac implantable electronic devices (CIEDs) activate the magnet response at a magnetic flux density of ≥10 gauss (G), which may cause unintended pacing, leading to discomfort or even severe arrhythmias. Information processing devices have recently incorporated magnets, which may activate the magnet mode in patients with abdominally implanted devices, subcutaneous implantable cardioverter‐defibrillators (ICDs), or extravascular ICDs. Methods We investigated the effects of the magnetic fields generated by information processing devices (tablets, laptops, and smartphones) and household/leisure magnets on 13 models of CIEDs, analyzing their association with magnet mode activation in different manufacturers' CIEDs. Results The tested magnet materials exhibited a maximum magnetic flux density of 290–1360 G. The magnetic flux density distribution in the information processing devices was as follows: accessory connectors, speakers, cameras, and microphones (p = 0.0001). The median activation distances for the magnet mode were 6.5 (range, 4–15), 5 (4–11.3), and 0.01 (activated only when attached; 0–7) mm for tablets and laptops, smartphones, and household/leisure magnets, respectively (p < 0.0001). The maximum distance at which the magnetic flux density decreased below 10 G was the longest for tablets and laptop computers at 18 mm. Conclusion Information processing devices and household/leisure magnets can affect CIEDs when placed in close proximity. Among the devices tested, magnet mode activation did not occur at distances of ≥20 mm. Considering the increasing prevalence of information processing devices and the growing adoption of nonthoracic CIED placements, raising awareness among patients about potential interactions is crucial.https://doi.org/10.1002/joa3.70106cardiac implantable electronic devicemagnet fieldmagnet modemagnetic flux densitytablet computer |
| spellingShingle | Norio Kamitani Aya Miyazaki Satoko Tomida Keita Shimizu Nodoka Ohira Keisyun Kondo Hiromichi Miura Daishi Koyama Shigehiko Tominaga Ryuta Henmi Ryo Sugiura Hiroshi Masui Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices Journal of Arrhythmia cardiac implantable electronic device magnet field magnet mode magnetic flux density tablet computer |
| title | Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices |
| title_full | Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices |
| title_fullStr | Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices |
| title_full_unstemmed | Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices |
| title_short | Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices |
| title_sort | impact of magnetic fields from tablets laptops smartphones and household leisure magnets on cardiac implantable electronic devices |
| topic | cardiac implantable electronic device magnet field magnet mode magnetic flux density tablet computer |
| url | https://doi.org/10.1002/joa3.70106 |
| work_keys_str_mv | AT noriokamitani impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT ayamiyazaki impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT satokotomida impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT keitashimizu impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT nodokaohira impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT keisyunkondo impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT hiromichimiura impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT daishikoyama impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT shigehikotominaga impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT ryutahenmi impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT ryosugiura impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices AT hiroshimasui impactofmagneticfieldsfromtabletslaptopssmartphonesandhouseholdleisuremagnetsoncardiacimplantableelectronicdevices |