Deactivation of Implantable Cardioverter Defibrillator During Non-thoracic Surgical Procedures
| Status: | Completed |
|---|---|
| Conditions: | Cardiology |
| Therapuetic Areas: | Cardiology / Vascular Diseases |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 6/1/2017 |
| Start Date: | December 2008 |
| End Date: | October 2011 |
The purpose of this study is:
- To document the incidence of electromagnetic oversensing of ICDs during non-thoracic
surgery.
- To identify any non-thoracic procedure with a higher incidence of generating
electromagnetic oversensing.
- To document the ability of dual chamber ICDs to discriminate electromagnetic
oversensing.
- To document the incidence of electromagnetic oversensing of ICDs during non-thoracic
surgery.
- To identify any non-thoracic procedure with a higher incidence of generating
electromagnetic oversensing.
- To document the ability of dual chamber ICDs to discriminate electromagnetic
oversensing.
Electrocautery devices used during surgery generate a high electromagnetic field with a
frequency that may result in ICD oversensing. Oversensing may in turn result in false
detection of a ventricular arrhythmia and for the ICD to discharge. Because of this
possibility, patients frequently have their ICDs inactivated prior to the procedure.
Although oversensing appears to be highly unlikely in clinical practice, vast resources are
utilized in the process of deactivating and reactivating ICDs for surgeries. In addition,
there are reports of deaths from failure to reactivate ICDs following elective surgery.
In this study we intend to document the incidence of oversensing, identify procedures with a
higher likelihood of oversensing and evaluate the ability of dual chamber ICDs to
discriminate electromagnetic oversensing.
frequency that may result in ICD oversensing. Oversensing may in turn result in false
detection of a ventricular arrhythmia and for the ICD to discharge. Because of this
possibility, patients frequently have their ICDs inactivated prior to the procedure.
Although oversensing appears to be highly unlikely in clinical practice, vast resources are
utilized in the process of deactivating and reactivating ICDs for surgeries. In addition,
there are reports of deaths from failure to reactivate ICDs following elective surgery.
In this study we intend to document the incidence of oversensing, identify procedures with a
higher likelihood of oversensing and evaluate the ability of dual chamber ICDs to
discriminate electromagnetic oversensing.
Inclusion Criteria:
- Patients with Medtronic or Boston Scientific single and dual chamber ICDs
Exclusion Criteria:
- Non-thoracic ICD generator placement (abdominal)
- Pregnant
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