Abdallah Abbas, Basant Lashin, Mohamed Abouzid, Hadir Mustafa Mohamed, Mohamed El-Moslemani, Mohamed A. Zanaty, Haneen Sabet, Dina Essam Abo-elnour, Ahmed Ibrahim Ghonimy Shedid, Mohamed Salah Mohamed Syed, Amna Hussein, Hoda Awad, Ahmed M. Raslan
Received December 6, 2024 Accepted January 10, 2025 Published online April 16, 2025
This study evaluated the efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) for pain management in postherpetic neuralgia (PHN). A comprehensive literature search was conducted through May 2024 in Scopus, PubMed, Web of Science, and Cochrane Library. Eligible studies included clinical trials, observational, and case-control studies. Two reviewers independently screened studies and extracted data. Risk of bias was assessed using RoB 2 for randomized controlled trials and the Newcastle-Ottawa Scale for observational studies. Meta-analysis was performed using Review Manager v.5.3, with heterogeneity evaluated by chi-square and I² tests. Five studies (245 patients) were included, with rTMS sessions ranging from 10 to 28. Meta-analysis showed significant pain reduction with rTMS compared to sham treatment. At 2 weeks post-treatment, the mean pain score difference (visual analogue scale) was –1.44 (95% CI: –2.12 to –0.77; p<0.0001), with sustained relief at 1 and 3 months. However, no significant differences were found in the patient’s global impression of change scale, sleep quality, quality of life (QoL), medication regulation, or adverse events. rTMS exerted a consistent pain relief effect of rTMS, but its impact on broader aspects of patient well-being was less clear. rTMS provides sustained pain relief in PHN for up to 3 months, but its impact on QoL and secondary outcomes remains unclear, warranting further investigation.