At the Pain & Vascular Institute, serving Barrington and Fox River Grove, IL, many patients living with chronic back or nerve pain look for effective options when other treatments have not provided sufficient relief. One advanced and minimally invasive solution is spinal cord stimulation (SCS). This therapy uses mild electrical impulses to block pain signals before they reach the brain, offering relief from chronic pain without relying heavily on medication.
Before committing to a permanent spinal cord stimulator implant, patients first undergo a trial phase—a short, temporary test that helps determine if the therapy effectively reduces pain. Dr. Salman Sagarwala, MD, and Dr. Sameer Ahmed, MD, emphasize that this trial gives both patient and physician valuable insight into whether spinal cord stimulation is the right long-term approach. Understanding the process, expectations, and outcomes can help patients feel more confident about taking this important step in their pain management journey.
What Is a Spinal Cord Stimulator Trial?
A spinal cord stimulator trial is a short-term evaluation period, typically lasting about 5 to 7 days, during which temporary leads (thin wires) are placed near the spinal cord to deliver gentle electrical pulses. These pulses interfere with pain signals traveling to the brain, replacing them with a light tingling sensation called paresthesia or, in newer systems, providing relief without noticeable sensation at all.
The trial allows patients to experience how spinal cord stimulation feels and assess whether it provides meaningful pain reduction in their daily life. Dr. Sameer Ahmed, MD, explains that most patients are considered for an SCS trial after other conservative treatments—such as medications, physical therapy, or injections—have not provided sufficient relief. The procedure is fully reversible, and no permanent hardware is implanted during the trial. If the trial is successful, the patient may choose to move forward with a permanent device.
Preparing for the Procedure
Before the trial, patients meet with their physician to review medical history, discuss goals, and understand what to expect. Preparation is typically simple. You may be asked to stop taking certain medications, such as blood thinners, before the procedure. It’s also recommended to arrange for someone to drive you home afterward, as light sedation may be used.
During this consultation, Dr. Salman Sagarwala, MD, and Dr. Sameer Ahmed, MD, ensure that each patient fully understands the process, potential benefits, and any risks involved. This is also an opportunity to discuss lifestyle factors—such as work, activity level, and personal pain goals—to determine how success will be measured during the trial period. Clear communication between patient and provider helps set realistic expectations and enhances overall outcomes.
What Happens During the Trial Procedure
The spinal cord stimulator trial is performed on an outpatient basis and usually takes less than an hour. The patient lies comfortably on their stomach while the skin over the spine is cleaned and numbed with a local anesthetic. Using fluoroscopy (a type of real-time X-ray), the physician carefully guides one or two thin leads into the epidural space—the area surrounding the spinal cord.
Once in place, the leads are connected to an external stimulator worn on a belt or shoulder strap. The device is then activated, and the physician adjusts the stimulation settings to target the specific pain areas. Patients may feel mild tingling where they previously felt pain, indicating that the leads are stimulating the correct nerves. The entire procedure is designed to be comfortable, with minimal discomfort or downtime.
After the procedure, the leads are secured to the skin with medical tape, and patients can return home the same day. They’re encouraged to resume light activities to test the stimulator under normal daily conditions, such as walking, standing, and sitting.
Living With the Trial Device
The trial period is an important opportunity for patients to determine whether spinal cord stimulation significantly reduces their pain and improves function. During this time, patients track how their pain levels change in various situations, such as during movement, rest, or sleep. Keeping a brief daily log of activities and pain relief helps physicians evaluate the trial’s effectiveness.
Dr. Sameer Ahmed, MD, advises patients to avoid bending, twisting, or lifting heavy objects during the trial to prevent the leads from shifting. Bathing should also be limited to sponge baths to protect the insertion site, as the leads are connected externally. Despite these precautions, most people can perform light, routine activities comfortably and quickly notice differences in their pain response.
A successful trial is typically defined by at least a 50% reduction in pain, along with improvements in mobility, sleep, or quality of life. Some patients also report using fewer pain medications during this time.
What to Expect After the Trial
At the end of the trial period, the temporary leads are gently removed in the office, a process that usually takes just a few minutes. The physician then reviews the patient’s experience to determine if spinal cord stimulation is a good long-term solution. If the results are positive, the next step involves planning for permanent implantation of the device, which is placed under the skin in a minimally invasive outpatient procedure.
If the trial does not produce sufficient relief, there is no permanent impact, and other treatment options can be explored. According to Dr. Salman Sagarwala, MD, about 70–80% of patients who experience a successful trial go on to receive a permanent implant and continue to experience lasting pain relief.
Benefits and Considerations of a Spinal Cord Stimulator Trial
A spinal cord stimulator trial offers several advantages. It allows patients to “test drive” the technology before committing to an implant, ensuring the treatment aligns with their individual pain patterns and lifestyle. The procedure is minimally invasive, reversible, and typically provides immediate feedback about potential effectiveness.
While complications are rare, patients may experience mild soreness at the insertion site or temporary lead movement. Following aftercare instructions carefully helps minimize these risks. Dr. Sameer Ahmed, MD, and Dr. Salman Sagarwala, MD, emphasize that patients who stay engaged in the evaluation process and provide detailed feedback during the trial achieve the most accurate and satisfying results.
Conclusion
A spinal cord stimulator trial is an important and empowering step for individuals seeking relief from chronic pain. It offers a safe, temporary way to experience how advanced neuromodulation technology can reduce pain and restore function. The Pain & Vascular Institute, proudly serving Barrington and Fox River Grove, IL, encourages patients to explore this innovative option with guidance from skilled physicians who prioritize comfort, safety, and long-term results. With the right preparation and understanding, a spinal cord stimulator trial can be the beginning of renewed mobility and improved quality of life.
Resources:
- Deer, T. R., et al. (2014). The Appropriate Use of Neurostimulation for the Treatment of Chronic Pain and Ischemic Diseases. Neuromodulation: Technology at the Neural Interface.
- North, R. B., et al. (2005). Spinal Cord Stimulation for Chronic, Intractable Pain: Experience Over Two Decades. Neurosurgery.
- Kumar, K., et al. (2008). Spinal Cord Stimulation Is Effective in the Management of Chronic Pain: Evidence from Randomized Clinical Trials. Pain.
