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Spinal Cord Stimulation
The Cross-Talk Between Spinal Cord Stimulators and the Confirm™ Cardiac Monitor
Article first published online: 9 MAY 2013
© 2013 International Neuromodulation Society
Neuromodulation: Technology at the Neural Interface
Volume 17, Issue 1, pages 42–47, January 2014
How to Cite
Chaiban, G. M., Davidov, M., Cummings, J. E., Lehrian, L. E., Yee, E. M. Y., Dugan, A., Almualim, M. S. and Atallah, J. N. (2014), The Cross-Talk Between Spinal Cord Stimulators and the Confirm™ Cardiac Monitor. Neuromodulation: Technology at the Neural Interface, 17: 42–47. doi: 10.1111/ner.12060
Conflict of Interest: The pain medicine fellowship at the University of Toledo has received a grant from Boston Scientific. Dr. JE Cummings consults for St. Jude, Boston Scientific, and Medtronic. The other authors have no conflicts of interest to disclose.
- Issue published online: 14 FEB 2014
- Article first published online: 9 MAY 2013
- Manuscript Accepted: 18 MAR 2013
- Manuscript Revised: 8 FEB 2013
- Manuscript Received: 21 DEC 2012
- Boston Scientific
- ECG recording;
- electromagnetic interference;
- loop recorder;
- spinal cord stimulators
Spinal cord stimulators (SCS) function by transmission of electrical impulses to electrode contacts placed within the epidural space depending on the painful area to be treated. Because of the electrical nature of the SCS, there has been concern about the interaction between these devices and devices that monitor or augment the cardiac system. Implantable loop recorders help to identify the causes of syncope or palpitation by continuously evaluating and recording portions of an electrocardiograph in patients being evaluated for cardiac conduction arrhythmias. The purpose of the study is to simulate the possible effects of spinal cord stimulation on a Confirm cardiac monitor (St. Jude Medical, St. Paul, MN, USA).
Twenty patients without preexisting cardiac disease, who were successfully being treated with SCS, were enrolled. Confirm loop recorders (St. Jude Medical) were placed on their chest wall in a noninvasive manner, with all programmed at identical settings. Multiple stimulation settings were adjusted on the stimulators and the recordings from the Confirm loop recorder were analyzed for evidence of interference.
Fifteen of the patients had no electrical noise detected at any of the tested combinations of stimulation. Five patients had some electrical “noise” detected by the loop recorder, but it did not inhibit the cardiologist evaluating the recording from analyzing the electrocardiograph for diagnostic purposes. At no point with any of the patients at any tested setting was there an appearance of a life-threatening arrhythmia.
Our study demonstrates that spinal cord stimulation is unlikely to interfere with the data collected by the Confirm loop recorder, and the presence of an SCS should not interfere with the ability to use a loop recorder for diagnostic purposes.