Inappropriate activation of pacemaker magnet response mode by CPAP masks
| Autor: | Alan V. Sahakian, Jeremiah Wasserlauf, Bradley P. Knight, Yosef Schwartz |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Pacemaker Artificial medicine.medical_treatment 030204 cardiovascular system & hematology 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Humans In patient 030212 general & internal medicine Continuous positive airway pressure Aged Aged 80 and over Continuous Positive Airway Pressure business.industry Masks Cardiac implanted General Medicine equipment and supplies Magnet Cardiology Magnets Equipment Failure Cardiology and Cardiovascular Medicine business human activities |
| Zdroj: | Pacing and clinical electrophysiology : PACE. 42(8) |
| ISSN: | 1540-8159 |
| Popis: | Background While electromagnetic interference is widely recognized as a cause of noise detected by cardiac implanted electronic devices (CIEDs), we report on two cases of inappropriate activation of magnet response mode due to magnets in continuous positive airway pressure (CPAP) masks. Methods Two patients with St. Jude Medical dual-chamber pacemakers (Assurity DR 2240; St. Jude Medical, St. Paul, MN, USA) were discovered on routine outpatient device interrogation to have magnet response events that correlated with nightly use of their CPAP masks. A magnet response event was reproduced by positioning one CPAP mask over the patient's pulse generator site. The magnetic flux density was measured using a Gauss meter. Results It was found that their CPAP masks had magnetic clips that were used to secure the headgears. These appeared to be transiently positioned within sufficient proximity of the patients' CIEDs to activate magnet response events during sleep. The measured magnetic field density adjacent to a mask magnet was 136 Gauss. Conclusion Clinicians managing CPAPs and CIEDs should be aware of magnetic interference with the potential for inappropriate activation of magnet response mode. CPAP masks that are secured with magnetic clips should be avoided in patients with CIEDs, since this can result in inappropriate asynchronous pacing in pacemakers or potential failure to deliver life-saving tachytherapies in patients with implanted cardioverter-defibrillators. |
| Databáze: | OpenAIRE |
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