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When the Nerve Keeps Firing: An Institutional Experience and Systematic Review on Delayed Response After Microvascular Decompression for Trigeminal Neuralgia Publisher Pubmed



Esmaeilzadeh M1 ; Sabahi M2 ; Maroufi SF3, 4 ; Dabeco R2 ; Adada B2 ; Roser F5 ; Borgheirazavi H5, 6
Authors
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Authors Affiliations
  1. 1. Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
  2. 2. Department of Neurological Surgery, Pauline Braathen Neurological Center, Cleveland Clinic Florida, Weston, FL, United States
  3. 3. Neurosurgery Research Network (NRN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
  4. 4. Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Department of Neurosurgery, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
  6. 6. Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd., Weston, 33331, FL, United States

Source: Neurological Sciences Published:2024


Abstract

Background: This study aimed to investigate the occurrence of delayed response following microvascular decompression (MVD) in patients with trigeminal neuralgia (TN) and identify potential contributing factors. Additionally, we present two cases with delayed relief observed at our institution. Method: Two TN patients with delayed response and clear intra-operative arterial findings are presented in this study. Furthermore, we conducted a systematic review by searching electronic bibliographic databases, including MEDLINE (PubMed), Web of Science, Scopus, and Embase, from inception to 2022. Results: We identified a total of 28 full-text articles involving 322 TN patients who experienced delayed pain relief. Out of these, only 11 studies provided sufficient evidence and were included in the final analysis. Among the patients, 73.46% were female. The mean incidence rate of delayed response after MVD treatment for TN was 10.5%, with a range of 0.95 to 57.14% across different studies. The mean age of these patients was 59.86 years. The reported time to pain relief in the existing reports was at least 4 days post-surgery. In 72.88% of the reported cases, right-side dominance was observed. The majority of delayed cases experienced pain relief within 3 months, with a median time of 1 month. Conclusions: A thorough examination of the probability of delayed pain relief after MVD for TN and understanding the characteristics of this phenomenon can offer surgeons valuable post-operative guidance and aid in decision-making regarding potential immediate reoperation. © 2023, Fondazione Societa Italiana di Neurologia.
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