Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500115205) titled 'A Clinical Study of Ultrasound-guided Transforaminal Outside-In Short-term Dorsal Root Ganglion Stimulation for Thoracic Postherpetic Neuralgia' on Dec. 23, 2025.

Study Type: Interventional study

Study Design: Cross-sectional

Primary Sponsor: Shanghai East Hospital

Condition: postherpetic neuralgia

Intervention: treatment group:Receive a single short-duration (2-week) dorsal root ganglion stimulation (DRGS) treatment while continuing oral pregabalin (150 mg, BID). After electrode implantation, the patient will be observed for 2 days prior to discharge. Following discharge, the patient will use a programmin...