Multi-Dimensional Predictors of Long-Term SCS Success: Moving Beyond the Numerical Pain Score

Friday, November 14, 2025

9:04 AM - 9:12 AM CT

Location: 301 - 302

Introduction:

A challenge in spinal cord stimulation (SCS) is prognosticate long-term success. While ≥50% pain reduction on the Numerical Rating Scale (NRS) is a common benchmark for trial success, NRS often does not capture the multi-faceted patient experience, and may not be the best predictor for long-term success. The PGIC is inherently comparative for overall patient-evaluated before-after change¹. This study aims to identify which patient-reported outcome measures (PROMs) are reliable predictors of a positive PGIC outcome.

Submitting Author(s)

TW

TARVIT WORRAVITUDOMSUK, MD

Clinical Fellow
University of Toronto
Toronto, Ontario, Canada

Co-Author(s)

YZ

Yanzhi Zeng, MBss Mmed (Anes)

Fellow
University Health Network - Toronto Western Hospital, Canada
RH

Rhyall Hughes, MD

Clinical Fellow
University of Toronto, United States
Victoria Bains, CNS (she/her/hers)

Research Coordinator
University Health Network- Toronto Western Hospital, Ontario, United States
NL

Navroop Liddar, BSc

Research Coordinator
University of Toronto, United States
DA

Danielle Alvares, PHD

Research Coordinator
University Health Network- Toronto Western Hospital, United States
AB

Anuj Bhatia, MBBS MD PhD FRCPC

Professor, University of Toronto
University Health Network- Toronto Western Hospital
Toronto, Ontario, Canada