Examination of Implant´s Safety in an Electronic and Magnetic Field Environment
- Conditions
- Disorder of Implantable DefibrillatorCardiac ArrhythmiaDisorder of Cardiac Pacemaker System
- Interventions
- Device: Magnetic and electric field´s impact on the implant
- Registration Number
- NCT01626261
- Lead Sponsor
- RWTH Aachen University
- Brief Summary
The number of active electrical cardiac implants such as internal cardioverter defibrillators (ICDs), pacemakers or cardiac contractility modules (CCM) has significantly risen over the last two decades. This has been paralleled by an increase in the number of sources of electromagnetic fields in daily life and occupational circumstances.
To date it remains unclear whether patients are at risk of device failure when being subjected to these fields. There are currently no general guidelines available to help clinicians informing their patients about safety levels and behavior around these electromagnetic fields.
This study aims to identify the thresholds of safe use of these devices and potential failures under worst-case conditions in 50/60 Hz fields (i.e.
power line frequency). Device implanted patients will be exposed to electric, magnetic and combined fields of different intensity at various device programming (e.g. nominal and maximum sensitivity). The results will show whether patients are safe in public or occupational environments, which medical relevant disturbances can occur and if a correlation exists between disturbances and device type or patients physique.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 281
- men and women between 18 and 80 years
- Implantation of a Pacemaker (SM)-/ ICD-assembly at least four weeks ago
- signed informed consent
- enduring addiction of implant
- thyroid disease
- electrolyte imbalance on the trial day
- pregnancy and breastfeeding
- acute myocardial infarction (<30 days)
- Comorbidity, which complicates an emergency assistance, e.g. morbus bechterew, glaucoma, micturition disturbance
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description cardiac pacemaker Magnetic and electric field´s impact on the implant -
- Primary Outcome Measures
Name Time Method Interference threshold of the device in electromagnetic fields in V/m and/or µT for every patient during one ambulant visit about 1 hour study examination
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Universtiy Hospital RWTH Aachen
🇩🇪Aachen, Northrhine-Westfalia, Germany