Are there differences in revision rates between Interstim's original and MRI compatible device?

Objectives: To evaluate differences in revision rates in patients with Interstim sacral neuromodulation device before and after introduction of the MRI compatible lead within one healthcare system.

Methods: A retrospective chart review was performed to identify female patients who had undergone a sacral neuromodulation procedure within one healthcare system. Charts of patients who underwent a procedure from August 2020, when the MRI compatible lead was released, through December 2021 were reviewed. The same number of charts were reviewed for patients who underwent the procedure prior to August 2020. Demographic characteristics, information regarding the initial procedure and reasons for lead revision or removal were collected. Fishers exact test, t test and a logistic regression model was used to analyze the data.

Results: A retrospective chart review was performed to identify female patients who had undergone a sacral neuromodulation procedure within one healthcare system. Charts of patients who underwent a procedure from August 2020, when the MRI compatible lead was released, through December 2021 were reviewed. The same number of charts were reviewed for patients who underwent the procedure prior to August 2020. Demographic characteristics, information regarding the initial procedure and reasons for lead revision or removal were collected. Fishers exact test, t test and a logistic regression model was used to analyze the data.

Conclusions: The MRI compatible sacral neuromodulation device had a significantly lower revision rate than the original lead within one healthcare system. Patients undergoing sacral neuromodulation have several reasons for device revision/removal. Further research is need to better understand the overall rate of device revision/removal and the underlying reasons.