Abstract
Purpose
We aimed to describe a case series of patients diagnosed with trigeminal neuralgia (TN) who were submitted to microvascular decompression (MVD) using autologous muscle graft (AMG) and perform a systematic review and meta-analysis.
Methods
Forty-four adult patients who underwent MVD using AMG between 2012 and 2022 were studied retrospectively. Demographic, clinical, and surgical factors were assessed. We systematically reviewed PubMed, Embase, and Cochrane Library from inception to May 2023. We used random-effects model for all outcomes. Heterogeneity was assessed with I2. We used R software 4.3.1 for all statistical analyses.
Results
Among patients in the case series, the mean age was 52 ± 12.9 years, and the proportion of females was 65.9%. Forty-one patients (93.2%) presented complete pain relief after a mean follow-up of 7.7 years. The pooled analysis of immediate pain relief was 91.3% (95% CI 82–96%; I2=78%). The good pain relief during follow-up was 88.2% (95% CI 78–94%; I2=80%) at follow-up. The recurrence rates at 6, 12, 36 months, and during follow-up were 6.2%, 10.5%, 10.3%, and 11%, respectively.
Conclusion
In this case series and meta-analysis of over 440 patients, our findings suggest that the practice of MVD using AMG may be an efficient option in the short term as surgical treatment for TN. Further trials should compare AMG with other materials and its effectiveness in a long-term follow-up.
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Data availability
Data or information needed to re-produce the findings presented are available from the corresponding author upon reasonable request while also patient confidentiality.
Code availability
The code underlying this article will be shared on reasonable request to the corresponding author.
Abbreviations
- AICA:
-
Anterior inferior cerebellar artery
- AMG:
-
Autologous muscle graft
- BA:
-
Basilar artery
- BNI:
-
Barrow Neurological Institute
- CI:
-
Confidence interval
- CSF:
-
Cerebrospinal fluid
- FIESTA:
-
Fast imaging employing steady-state acquisition
- MRI:
-
Magnetic resonance imaging
- MVD:
-
Microvascular decompression
- NIH:
-
National Institute of Health
- NVC:
-
Neurovascular compression
- PICA:
-
Posterior inferior cerebellar artery
- PRISMA:
-
Preferred Reporting Items for Systematic Reviews and Meta-Analysis
- PROSPERO:
-
International Prospective Register of Systematic Reviews
- REZ:
-
Root entry zone
- SCA:
-
Superior cerebellar artery
- SPV:
-
Superior petrosal vein
- TN:
-
Trigeminal neuralgia
- T:
-
Trigeminal nerve
- TPV:
-
Transverse pontine vein
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Conception and design of the work: GMSB and PRLL. Acquisition, analysis, and interpretation of data: GMSB, PRLL, JFC-N, and AR. Drafting and critically review: GMSB, PRLL, JFC-N, AR, KFP, and GC-F. All authors agreed to the publication of this work.
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Bezerra, G.M.S., Leal, P.R.L., Cavalcante-Neto, J.F. et al. Microvascular decompression using autologous muscle graft for trigeminal neuralgia: a case series and meta-analysis. Acta Neurochir 165, 3833–3843 (2023). https://doi.org/10.1007/s00701-023-05871-5
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DOI: https://doi.org/10.1007/s00701-023-05871-5