What risks or side effects are associated with SPRINT PNS?

The most common device-related adverse event reported in clinical studies was skin irritation (which may include inflammation, mild blistering, and/or erythema).  Other less-reported events included itching at the electrode exit site, granuloma, pain after electrode placement, and infection.  The majority of the device-related adverse events in sponsored clinical studies were resolved with little to no intervention within a few days, and serious device-related adverse events have been rare.

Similar adverse events have been reported during commercial use.  Infections have been reported for about 1-2% of patients.  Serious adverse events have been rare.