Practice Parameters for the Use of Spinal Cord Stimulation in the Treatment of Chronic Neuropathic Pain
Screening Trial
Does a screening trial provide valid patient selection information?
Because the SCS screening trial duplicates the definitive procedure (the therapeutic effects, side effects, and patient-control interface), it offers the most meaningful prognostic sign that SCS will succeed or fail. A patient who reports sufficient and satisfactory pain relief during a screening trial of reasonable duration (see below) with stable or reduced analgesic use and a concordant stable or increased physical activity should be offered a permanent implant. Thus, as its name implies, the screening trial fulfills both a screening and a trial function.
The screening trial also provides important information that will dictate the choice of electrode and stimulator to be implanted and the optimum stimulating configuration.
Medicare and many third-party payers require a successful screening trial before implantation.
Strength of recommendation | Evidence source(s)/rationale |
A = Recommended or required Valid, useful, or non-negotiable |
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