Sacral neuromodulation (SNM) or sacral nerve stimulation or a bladder pacemaker is a treatment used to help patients with bladder control problems. It is also known as Interstim therapy.
SNM uses mild electrical pulses to stimulate the sacral nerve located near the tailbone, which controls the bladder and other muscles that manage urinary function. A pulse generator device the size of a stopwatch, is surgically implanted into the buttocks. The pulses are delivered near the sacral nerve through an insulated wire called a ‘lead’, which is also implanted under the skin.
Non-obstructive urinary retention